Pacific Digital Power Supply AD8HR User Manual

Owner’s Manual  
Thank you for choosing the Yamaha AD8HR AD converter with remote microphone  
preamp.  
The AD8HR is an eight-channel AD converter equipped with remote microphone  
preamps that feature 96kHz, 24-bit linear AD conversion, 128-times oversampling,  
and a dynamic range of 110dB. Its input section features balanced XLR connectors,  
high-quality mic preamps, +48V phantom power, and support for both mic and line-  
level inputs. The output section supports the AES/EBU format and features a high  
sampling frequency of 88.2/96kHz. You can easily adjust the gain for each channel  
(in 1dB steps) and set up the high pass filter from the front panel. These settings are  
stored in the unit’s backup memory, and are retained even after the power is turned  
off. In addition, a special protocol enables you to remotely control the unit from a  
connected computer or other device.  
Please read this manual thoroughly before using the unit to take the greatest  
advantage of the AD8HR’s extensive features for the longest period of time. After you  
read this manual, please keep it in a safe place.  
 
Explanation of Graphical Symbols  
The lightning flash with arrowhead symbol  
within an equilateral triangle is intended to alert  
the user to the presence of uninsulated “danger-  
ous voltage” within the product’s enclosure that  
may be of sufficient magnitude to constitute a  
risk of electric shock to persons.  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
The exclamation point within an equilateral trian-  
gle is intended to alert the user to the presence of  
important operating and maintenance (servicing)  
instructions in the literature accompanying the  
product.  
CAUTION: TO REDUCE THE RISK OF  
ELECTRIC SHOCK, DO NOT REMOVE  
COVER (OR BACK). NO USER-SERVICEABLE  
PARTS INSIDE. REFER SERVICING TO  
QUALIFIED SERVICE PERSONNEL.  
The above warning is located on the top of the unit.  
IMPORTANT SAFETY INSTRUCTIONS  
1
2
3
4
5
6
7
Read these instructions.  
Keep these instructions.  
Heed all warnings.  
Follow all instructions.  
Do not use this apparatus near water.  
Clean only with dry cloth.  
Do not block any ventilation openings. Install in  
accordance with the manufacturer’s instructions.  
Do not install near any heat sources such as radia-  
tors, heat registers, stoves, or other apparatus  
(including amplifiers) that produce heat.  
Do not defeat the safety purpose of the polarized  
or grounding-type plug. A polarized plug has two  
blades with one wider than the other. A grounding  
type plug has two blades and a third grounding  
prong.The wide blade or the third prong are pro-  
vided for your safety. If the provided plug does not  
fit into your outlet, consult an electrician for  
replacement of the obsolete outlet.  
10 Protect the power cord from being walked on or  
pinched particularly at plugs, convenience recep-  
tacles, and the point where they exit from the  
apparatus.  
11 Only use attachments/accessories specified by  
the manufacturer.  
12 Use only with the cart, stand,  
tripod, bracket, or table speci-  
fied by the manufacturer, or  
sold with the apparatus.When a  
cart is used, use caution when  
moving the cart/apparatus com-  
bination to avoid injury from tip-  
over.  
8
9
13 Unplug this apparatus during lightning storms or  
when unused for long periods of time.  
14 Refer all servicing to qualified service personnel.  
Servicing is required when the apparatus has  
been damaged in any way, such as power-supply  
cord or plug is damaged, liquid has been spilled or  
objects have fallen into the apparatus, the appara-  
tus has been exposed to rain or moisture, does  
not operate normally, or has been dropped.  
WARNING  
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,  
DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.  
FCC INFORMATION (U.S.A.)  
not guarantee that interference will not occur in all installations. If  
this product is found to be the source of interference, which can be  
determined by turning the unit “OFF” and “ON”, please try to elimi-  
nate the problem by using one of the following measures:  
Relocate either this product or the device that is being affected by  
the interference.  
Utilize power outlets that are on different branch (circuit breaker or  
fuse) circuits or install AC line filter/s.  
In the case of radio or TV interference, relocate/reorient the  
antenna. If the antenna lead-in is 300 ohm ribbon lead, change the  
lead-in to co-axial type cable.  
If these corrective measures do not produce satisfactory results,  
please contact the local retailer authorized to distribute this type of  
product. If you can not locate the appropriate retailer, please con-  
tact Yamaha Corporation of America, Electronic Service Division,  
6600 Orangethorpe Ave, Buena Park, CA90620  
The above statements apply ONLY to those products distributed by  
Yamaha Corporation of America or its subsidiaries.  
1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!  
This product, when installed as indicated in the instructions con-  
tained in this manual, meets FCC requirements. Modifications not  
expressly approved by Yamaha may void your authority, granted by  
the FCC, to use the product.  
2. IMPORTANT:When connecting this product to accessories and/  
or another product use only high quality shielded cables. Cable/s  
supplied with this product MUST be used. Follow all installation  
instructions. Failure to follow instructions could void your FCC  
authorization to use this product in the USA.  
3. NOTE:This product has been tested and found to comply with the  
requirements listed in FCC Regulations, Part 15 for Class “B” digital  
devices. Compliance with these requirements provides a reason-  
able level of assurance that your use of this product in a residential  
environment will not result in harmful interference with other elec-  
tronic devices. This equipment generates/uses radio frequencies  
and, if not installed and used according to the instructions found in  
the users manual, may cause interference harmful to the operation  
of other electronic devices. Compliance with FCC regulations does  
* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA.  
(class B)  
3
 
ADVARSEL!  
IMPORTANT NOTICE FOR THE UNITED KINGDOM  
Lithiumbatteri—Eksplosionsfare ved fejlagtig håndtering. Udskiftning  
må kun ske med batteri af samme fabrikat og type. Levér det brugte  
batteri tilbage til leverandoren.  
Connecting the Plug and Cord  
WARNING: THIS APPARATUS MUST BE EARTHED  
IMPORTANT. The wires in this mains lead are coloured in accordance  
with the following code:  
VARNING  
Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller  
en ekvivalent typ som rekommenderas av apparattillverkaren.  
Kassera använt batteri enligt fabrikantens instruktion.  
GREEN-AND-YELLOW  
BLUE  
BROWN  
:
:
:
EARTH  
NEUTRAL  
LIVE  
VAROITUS  
As the colours of the wires in the mains lead of this apparatus may not  
correspond with the coloured markings identifying the terminals in  
your plug proceed as follows:  
The wire which is coloured GREEN-and-YELLOW must be connected  
to the terminal in the plug which is marked by the letter E or by the  
Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo  
ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä käytetty  
paristo valmistajan ohjeiden mukaisesti.  
safety earth symbol  
or colored GREEN or GREEN-and-YELLOW.  
(lithium caution)  
The wire which is coloured BLUE must be connected to the terminal  
which is marked with the letter N or coloured BLACK.  
The wire which is coloured BROWN must be connected to the termi-  
nal which is marked with the letter L or coloured RED.  
NEDERLAND / THE NETHERLANDS  
• Dit apparaat bevat een lithium batterij voor geheugen back-up.  
• This apparatus contains a lithium battery for memory back-up.  
• This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd.  
(3 wires)  
• Raadpleeg uw leverancier over de verwijdering van de batterij op het  
moment dat u het apparaat ann het einde van de levensduur afdankt  
of de volgende Yamaha Service Afdeiing:  
Yamaha Music Nederland Service Afdeiing  
Kanaalweg 18-G, 3526 KL UTRECHT  
Tel. 030-2828425  
• For the removal of the battery at the moment of the disposal at the  
end of the service life please consult your retailer or Yamaha Service  
Center as follows:  
Yamaha Music Nederland Service Center  
Address : Kanaalweg 18-G, 3526 KL UTRECHT  
Tel  
: 030-2828425  
• Gooi de batterij niet weg, maar lever hem in als KCA.  
• Do not throw away the battery. Instead, hand it in as small chemical  
waste.  
(lithium disposal)  
Table of Contents  
* All illustrations in this manual are intended to explain procedures. Therefore, some illustrations  
may appear different than your unit.  
* All names of companies and products that appear in this manual are trademarks or registered  
trademarks of the respective owners.  
Yamaha Proaudio website:  
4
 
Part Names and Functions  
Part Names and Functions  
Front Panel  
3
4
7
5
+48V  
96kHz  
88.2kHz  
48kHz  
HPF  
44.1kHz  
+48V  
MASTER  
dB  
OFF ON  
WORD CLOCK  
1 2  
6
8
9
J K L  
A WORD CLOCK indicators  
H [HPF] button  
These indicators indicate the currently selected  
wordclock source. If the unit is not locking to the  
selected wordclock source, the corresponding  
wordclock source indicator flashes.  
This button turns the high pass filter of the selected  
channels on or off (See page 8.) The button indicator  
lights up when the high pass filter of the selected  
channels is turned on.  
B [WORD CLOCK] button  
I Gain display  
This button enables you to select the wordclock source  
from 44.1kHz, 48kHz, 88.2kHz, 96kHz, WORD  
CLOCK IN, and DIGITAL OUT A (See page 7.)  
This 3-digit, 7-segment display indicates the gain of  
the currently selected channel.  
J Gain control  
C +48V indicators  
This control sets the gain of the selected channel.  
These indicators indicate the on/off status of the +48  
phantom power of the corresponding channels.  
K [+48V MASTER] switch  
This switch turns the +48V phantom master power on  
or off.  
D HPF indicators  
These indicators indicate the on/off status of the high  
pass filter of the corresponding channels.  
L [POWER] switch  
This switch turns the power to the AD8HR on or off.  
The gain and high pass filter settings are stored even  
after you turn off the power to the unit.  
E Level meters  
These meters indicate the corresponding channel  
output level in six steps.  
NOTE:  
To avoid loud noise from the speakers, turn on the power  
first to the connected devices that are closest to the sound  
source.  
F Channel Select buttons  
These buttons enable you to select channels to edit.  
Example: Sound source AD8HR Mixer Power  
amplifier  
G [+48V] button  
This button turns the +48 phantom power of the  
selected channels on or off (See page 7.) The button  
indicator lights up when the +48V phantom power of  
the selected channels is turned on.  
To turn off the power to the system, reverse the order  
described above.  
5
 
   
Part Names and Functions  
Rear Panel  
3 4  
1 2  
5
6 7 8  
9
A Grounding screw  
D [PC RS422] switch  
For safety, use this screw to ground the AD8HR. The  
included power cable has a three-pin plug. If the AC  
outlet is grounded, the AD8HR will be grounded  
correctly via the power cable. If the AC outlet does not  
provide a suitable ground, this screw must be  
connected to a suitable ground point. Grounding is  
also an effective method for eliminating hum,  
interference, and other noise.  
If you connect a computer to [HA REMOTE]  
connector 1, set this switch to PC. If you connect a  
Yamaha PM5D or DM2000, or an additional AD8HR  
in a multiple AD8HR system, to [HA REMOTE]  
connector 1, set this switch to RS422.  
E [HA REMOTE] connector 2  
In a multiple AD8HR system, connect one AD8HR to  
this D-sub 9-pin connector on another AD8HR.  
B [AC IN] connector  
F [DIGITAL OUT A/B] connector  
These D-sub 25-pin connectors output AES/EBU  
format digital audio. In Double Speed mode, each  
connector outputs digital audio data routed from  
Channels 1–8. In Double Channel mode, the  
[DIGITAL OUT A] connector outputs digital audio  
data routed from Channels 1–4, and the [DIGITAL  
OUT B] connector outputs digital audio data routed  
from Channels 5–8.  
Connect the included power cable here. First, connect  
the power cable to the AD8HR, then insert the power  
cable plug into the AC outlet.  
Be sure to use the included power cable.  
Use of other cables may result in malfunction,  
heat generation, or fire.  
C [HA REMOTE] connector 1  
This D-sub 9-pin connector is used to connect a  
computer or Yamaha PM5D Digital Console or  
DM2000 to control the AD8HR remotely. In a  
multiple AD8HR system, connect an AD8HR to [HA  
REMOTE] connector 1 on an additional AD8HR.  
G [WORD CLOCK OUT] connector  
This BNC connector outputs a wordclock signal.  
H [WORD CLOCK IN] connector  
This BNC connector inputs a wordclock signal. This  
connector is terminated at 75.  
NOTE:  
Please visit the following Yamaha website for the latest  
information about the devices that can control the AD8HR  
remotely.  
I INPUT 1–8 connectors  
These balanced XLR-3-31-type connectors are used to  
input analog signals to the corresponding channels.  
6
 
 
Basic Operations  
Basic Operations  
3
While the indicator is flashing rapidly, press  
the [+48V] button again.  
The phantom power for the selected channels turns  
on, and the corresponding channel [+48V] indicators  
and the [+48V] button indicator light up.  
Selecting the Wordclock  
You can select from the following wordclock source  
options: internal clock (44.1kHz, 48kHz, 88.2kHz, and  
96kHz), WORD CLOCK IN, or DIGITAL OUT A.  
If you do not press the [+48V] button again before the  
indicator stops flashing (it will flash for five seconds),  
the setting is cancelled.  
1
2
Press the [WORD CLOCK] button repeatedly  
to select the wordclock source.  
The indicator of the selected wordclock flashes rapidly.  
While the indicator is flashing rapidly, press  
the [WORD CLOCK] button again.  
The AD8HR switches to the selected wordclock source  
and the flashing wordclock indicator stays lit. The  
indicator of the previously-selected wordclock source  
turns off.  
Adjusting the Gain  
Follow the steps below to adjust the channel gain in  
1dB steps.  
1
2
Press the Channel Select button to select a  
channel.  
The selected channel’s Channel Select button indicator  
lights up and the Gain display indicates the gain value.  
If you do not press the [WORD CLOCK] button again  
before the indicator stops flashing (it will flash for five  
seconds), the new selection is cancelled and the  
previous wordclock is selected.  
Rotate the Gain control to adjust the gain  
You can adjust the gain in the range of 10dB through  
–62dB in 1dB steps.  
If the AD8HR is not locking to the selected wordclock  
source, the corresponding wordclock source indicator  
flashes.  
NOTE:  
NOTE:  
While adjusting the gain, you may notice that the sound is  
briefly interrupted. This is not a malfunction. The internal  
setting is switched in steps of 6 dB, and the sound is  
momentarily muted so that the noise will not be created  
during the switching operation.  
The only word clock source available via the AES/EBU  
connection is the IN signal of DIGITAL OUT A channels 1/  
2.  
Setting the Phantom Power  
Adjusting the Gain Trim (Gain  
Correction)  
Follow the steps below to turn the +48V phantom  
power for each channel on or off.  
Follow the steps below to correct the channel gain in  
0.1dB steps. The output level of each channel has been  
calibrated in the factory. Typically, you will not have to  
correct the setting.  
NOTE:  
You can also turn the phantom power for all channels on  
or off simultaneously (not individual channels) using the  
[+48V MASTER] switch.When the [+48V MASTER] switch  
is turned off, the phantom power is not supplied to  
channels even if the [+48V] button is turned on for the  
channels.  
NOTE:  
In the factory, the level has been set to the optimum value  
and the initial level varies with each channel. This setting  
is reset to the factory value when you initialize the backup  
memory.  
1
2
Press the Channel Select buttons to select the  
channels.  
The selected channels’ Channel Select button  
indicators light up. The channel +48V indicator lights  
up when the +48V phantom power for the selected  
channels is turned on.  
1
2
3
Press and hold down the desired Channel  
Select button for more than two seconds.  
The Channel Select button indicator flashes and the  
Gain display indicates the gain trim value.  
Press the [+48V] button.  
Rotate the Gain control to adjust the gain trim  
value.  
You can adjust the gain trim value in the range of  
–1.5dB through +1.5dB in 0.1dB steps.  
If phantom power for the selected channels was off  
before the operation, the [+48V] button indicator  
starts flashing rapidly. If phantom power for the  
selected channels was on before the operation, the  
[+48V] button indicator and the phantom power for  
the selected channels turns off.  
Press the same Channel Select button again.  
The Channel Select button indicator lights up and the  
Gain display indicates the gain value.  
7
 
             
Basic Operations  
Setting the High Pass Filter  
Selecting the AES/EBU Format  
Each channel features a high pass filter (12dB/octave)  
that you can turn on or off. You can set individual cut-  
off frequencies for each channel’s high pass filter.  
You can select Double Speed mode (AE1) or Double  
Channel mode (AE2) for the AES/EBU format.  
Double Speed Mode  
1
Press the Channel Select button to select a  
channel.  
The selected channels’ Channel Select button  
indicators light up. The channel HPF indicator lights  
up when the high pass filter for the selected channels is  
turned on.  
In Double Speed mode, digital audio data is  
transmitted at the current higher sampling rate (i.e.,  
88.2kHz or 96kHz). Select this mode if the devices that  
support the higher sampling rates receive data.  
The [DIGITAL OUT A] and [DIGITAL OUT B]  
connectors each output digital audio data routed from  
Channels 1–8.  
2
3
Press the [HPF] button to turn the channel  
high pass filter on or off.  
Double Channel Mode  
In Double Channel mode, digital audio data is  
transmitted as mono signals at a sampling rate that is  
exactly half (44.1/48kHz) the current higher sampling  
rate. The data is handled by two channels. This is  
useful when you wish to transfer data from the  
AD8HR running at a higher sampling rate to legacy  
44.1/48kHz digital devices.  
To change the cut-off frequency, press and  
hold down the [HPF] button for more than  
two seconds.  
The [HPF] button indicator flashes rapidly and the  
Gain display indicates the cut-off frequency.  
4
5
Rotate the Gain control to set the cut-off fre-  
quency.  
You can set the cut-off frequency in the range of 20Hz  
through 600Hz (in 60 steps).  
The [DIGITAL OUT A] connector outputs digital  
audio data routed from Channels 1–4, and the  
[DIGITAL OUT B] connector outputs digital audio  
data routed from Channels 5–8. However, if the  
AD8HR is running at a sampling rate of 44.1/48kHz,  
each connector outputs digital audio data routed from  
Channels 1–8.  
Press the [HPF] button again.  
The [HPF] button indicator returns to the previous  
(on or off) status and the Gain display indicates the  
gain value.  
If the wordclock master is DIGITAL OUT A, the  
AD8HR will run at a clock rate that is twice (88.2/  
96kHz) the incoming clock (44.1/48kHz).  
Copying the Channel Settings  
Follow the steps below to copy channel settings to  
another channel. You can copy the following settings:  
channel gain, high pass filter on/off, cut-off frequency,  
and phantom power on/off. The gain trim value will  
not be copied.  
1
2
Turn off the power to the AD8HR.  
Press and hold down the [WORD CLOCK] but-  
ton and the Channel Select button of Channel  
1 or 2, then turn on the [POWER] switch.  
Pressing the Channel Select button of Channel 1 will  
select Double Speed mode (AE1). Pressing the  
Channel Select button of Channel 2 will select Double  
Channel mode (AE2). At the same time, the Gain  
display will indicate the selected mode (AE1 or AE2)  
for one second.  
1
Press and hold down the Channel Select but-  
ton of the copy source channel, and press the  
Channel Select button of the copy destination  
channel.  
The channel settings will be copied. To copy the same  
channel settings to a different channel, continue  
holding down the Channel Select button of the copy  
source channel, and press the Channel Select button of  
the target channel.  
8
 
       
Basic Operations  
Adjusting the LED Brightness  
Remote Control  
Follow the steps below to adjust the brightness of the  
front panel LED and Gain display.  
A special protocol enables you to control the AD8HR  
from a computer or Yamaha PM5D or DM2000 that is  
connected to [HA REMOTE] connector 1. You can  
also remotely control up to 255 AD8HRs that are  
connected to one another.  
1
While pressing and holding down the Channel  
Select button of Channel 8, rotate the Gain  
control to adjust the brightness.  
When each AD8HR receives control signals, the Gain  
display indicates the ID number of the corresponding  
unit. This is useful when you wish to identify each of  
multiple AD8HRs that are connected in a system.  
When you operate the panel on the unit, its ID  
number on the Gain display disappears. The ID  
number of the AD8HRs is determined based on the  
connection order in the daisy chain.  
You can adjust the brightness in seven steps.  
Panel Operation Lock  
You can lock the buttons and controls on the front  
panel to avoid any trouble due to unauthorized or  
unintentional operation. Note that you cannot lock  
the operation from the remote control.  
You can also create a daisy chain connection that  
mixes AD8HRs and Yamaha AD824 AD converters.  
However, in such a system, any AD8HR that is  
connected after any AD824 unit (when seen from the  
host device; e.g., computer) will be recognized as an  
AD824, and you will be unable to control the  
following functionality on these AD8HR units. For  
this reason, we recommend that you connect all  
AD8HR units closer to the host than any AD824 unit.  
1
Press the [WORD CLOCK] button, [+48V] but-  
ton, and [HPF] button simultaneously.  
This will turn the Panel Operation Lock function on  
or off. If the Panel Operation Lock function is turned  
on, the Gain display flashes when you operate the  
front panel, but you cannot change the settings.  
Initializing the Memory  
• High pass filter on/off and cutoff frequency cannot  
be controlled  
• Gain adjustment will be in 6 dB steps  
• [+48V MASTER] switch on/off status cannot be  
monitored  
If a computer is connected to [HA REMOTE]  
connector 1, set the [PC RS422] switch to PC. If you  
connect a Yamaha PM5D or DM2000, or another  
AD8HR in a multiple AD8HR system, to [HA  
REMOTE] connector 1, set this switch to RS422.  
Follow the steps below to initialize the backup  
memory to reset to the factory value.  
1
2
Turn off the power to the AD8HR.  
While pressing and holding down the Channel  
Select button of Channel 4 and the [+48V]  
button, turn on the [POWER] switch.  
The backup memory will be initialized.  
The backup memory stores the following settings.  
NOTE:  
Channel settings  
Global settings  
• Wordclock  
• AES/EBU format  
• LED brightness  
• Panel Operation Lock  
setting  
• If you are remotely controlling the AD8HR from a device  
that supports only the AD824, the device will recognize all  
AD8HRs as AD824s.  
• Phantom power on/off  
• Gain  
• Gain trim  
• High pass filter on/off  
• High pass filter cut-off  
frequency  
• When remotely controlling the AD8HR from a Yamaha  
DM2000/DM1000, all AD8HR units may be recognized as  
AD824 units and some functionality may be limited unless  
the DM2000/DM1000 firmware is V2.0 or later. For the  
latest information, refer to the following website.  
• If you are connecting the [HA REMOTE] connectors on  
two AD8HRs to each other, be careful to avoid loop  
connection.  
9
 
       
Connection Examples  
Connection Examples  
AES/EBU Connections  
AD8HR Daisy Chain Connection  
Use a D-sub 25-pin AES/EBU cable to connect a  
digital audio device that supports the AES/EBU  
format. To connect a Yamaha PM5D or DM2000 to  
the AD8HR, first you must install an optional I/O card  
(MY8-AE, MY8-AE96S, MY8-AE96, or MY16-AE) in  
the PM5D or DM2000.  
You can connect multiple AD8HRs to a Yamaha  
PM5D or DM2000. Connect [HA REMOTE]  
connector 1 of the first AD8HR to the COM connector  
of the DM2000, and connect [HA REMOTE]  
connector 2 to [HA REMOTE] connector 1 of the  
second AD8HR. Set the [PC RS422] switches on both  
AD8HRs to RS422. Specify the DM2000 as the  
wordclock master, and set the wordclock source on the  
AD8HR to DIGITAL OUT A.  
Digital audio devices  
(PM5D, DM2000, etc.)  
Optional I/O card  
AES/EBU cable  
Digital audio devices  
(PM5D, DM2000, etc.)  
SLOT 1  
SLOT 2  
COM  
AD8HR  
DIGITAL OUT A/B  
+48V  
96kHz  
88.2kHz  
48kHz  
HPF  
44.1kHz  
+48V  
MASTER  
dB  
OFF ON  
WORD CLOCK  
DIGITAL  
OUT A  
AD8HR #1  
HA REMOTE 1  
+48V  
96kHz  
88.2kHz  
48kHz  
HPF  
44.1kHz  
+48V  
MASTER  
dB  
OFF ON  
WORD CLOCK  
Analog in x 8  
HA REMOTE 2  
Analog in x 8  
DIGITAL  
AD8HR #2  
OUT A  
HA REMOTE 1  
+48V  
96kHz  
88.2kHz  
48kHz  
HPF  
44.1kHz  
+48V  
MASTER  
dB  
OFF ON  
WORD CLOCK  
HA REMOTE 2  
Analog in x 8  
10  
 
     
Wordclocks  
Wordclocks  
For proper AD conversion and digital audio data transmission and reception, the D8HRs and external  
digital audio devices must lock to an identical wordclock. The AD8HR is capable of transmitting a  
wordclock signal of 44.1kHz, 48kHz, 88.2kHz, and 96kHz, you can use the AD8HR as the wordclock  
master and the external devices as wordclock slaves. The AD8HR can also lock to the wordclock signal  
received at the [DIGITAL OUT A] connector or [WORD CLOCK IN] connector.  
AES/EBU Connections  
WORD CLOCK jack connection  
Use an AES/EBU cable to transmit digital audio data  
and receive a wordclock signal on the AD8HR.  
The AD8HR can receive wordclock signals at the  
[WORD CLOCK IN] connector. The [WORD CLOCK  
IN] connector and [WORD CLOCK OUT] connector  
can also be connected in series to allow multiple  
AD8HR units to receive a wordclock signal.  
NOTE:  
In Double Channel mode, the AD8HR will run at a clock  
rate that is twice (88.2/96kHz) the clock (44.1/48kHz)  
received at the [DIGITAL OUT A] connector. In Double  
Speed mode, the AD8HR will run at a clock rate that is the  
same as the wordclock (88.2/96kHz) received at the  
[DIGITAL OUT A] connector.  
The AD8HR’s [WORD CLOCK IN] connector is  
terminated at 75 ohms. Do not use a “T” connector to  
make connections.  
Wordclock  
master  
Digital audio devices  
(PM5D, DM2000, etc.)  
WORD CLOCK  
IN OUT  
WORD CLOCK  
IN OUT  
WORD CLOCK  
IN OUT  
WORD CLOCK  
IN  
AD8HR  
AD8HR  
AD8HR  
AD8HR  
Audio data  
Wordclock  
AD8HR  
DIGITAL OUT A  
+48V  
96kHz  
88.2kHz  
48kHz  
HPF  
44.1kHz  
+48V  
MASTER  
dB  
OFF ON  
WORD CLOCK  
Wordclock source = DIGITAL OUT A  
11  
 
     
Appendix  
Appendix  
General Specifications  
Analog Input  
LEDs  
INPUT 1–8  
XLR-3-31  
AD converter  
WORD CLOCK  
[44.1kHz]/[48kHz]/[88.2kHz]/[96kHz]  
/[WORD CLOCK IN]/[DIGITAL OUT A]  
8x6 Segment  
Balanced  
24-bit linear  
128-times Oversampling  
LEVEL METER 1–8  
SELECT 1–8  
+48V 1–8, Selected Channel  
HPF 1–8, Selected Channel  
GAIN/DATA Display 7seg x3  
Digital Output  
DIGITAL OUT A, B  
D-Sub 25-pin  
Balanced  
Functions  
HPF Frequency  
INPUT GAIN TRIM  
AES/EBU Higher Sampling Rate Data Output Format  
Double Speed / Double Channel  
Panel Lock  
20Hz–600Hz  
–1.5 dB to 1.5 dB (0.1 dB step)  
Connectors  
WORD CLOCK IN (75Auto Terminated): BNC  
WORD CLOCK OUT:  
HA REMOTE (PC-RS422):  
BNC  
D-Sub 9-pin with PC-RS422  
switch  
D-Sub 9-pin  
Panel Brightness  
7 steps  
HA REMOTE (RS422):  
Miscellaneous  
Power Requirements  
Controls  
+48V Master Switch  
GAIN/DATA encoder  
U.S./Canada: 120 V 35 W, 60 Hz  
Others: 230 V 35 W, 50 Hz  
45 x 383.5 x 480 mm  
5 kg  
Dimensions (HxDxW)  
Net Weight  
Keys  
[WORD CLOCK]  
[SELECT1]–[SELECT8]  
[+48V]  
Operation free-air temperature range  
5 to 40 °C  
Storage temperature  
Accessories  
–20 to 60 °C  
AC Cable  
Rubber Feet x 4  
Owner’s Manual  
[HPF]  
I/O Characteristics  
Analog Input Specifications  
Input level  
Max. before clip  
Actual Load  
Impedance  
For Use With  
Nominal  
Input Terminals  
GAIN  
Connector  
Nominal  
–62 dB  
+10 dB  
–62 dBu (615 µV)  
+10 dBu (2.45 V)  
–42 dBu (6.15 mV)  
+30 dBu (24.5 V)  
XLR-3-31 type  
50~600 Mics &  
INPUT 1–8  
3k Ω  
*1  
600 Lines  
(Balanced)  
*1. XLR-3-31 type connectors are balanced. (1=GND, 2=HOT, 3=COLD)  
*2. In these specifications, when dBu represents a specific voltage, 0dBu is referenced to 0.775 Vrms.  
*3. AD converters are 24-bit linear, 128-times oversampling.  
Digital I/O Specifications  
Input/Output Terminals  
Format  
Level  
Connector in Console  
*1  
Input 1/2 (word clock only)  
Output 1–8 x 2  
AES/EBU  
RS422  
D-SUB 25p Female  
HA REMOTE x 2  
WORD CLOCK IN  
WORD CLOCK OUT  
RS422  
D-SUB 9p Male  
BNC  
TTL / 75Ω  
TTL / 75Ω  
BNC  
*1. Input 1/2 on DIGITAL OUT A can be selected for word clock master.  
*2. Fs= 44.1, 48, 88.2 and 96 kHz is supported.  
*3. Double Channel mode is supported (Fs= 88.2, 96 kHz).  
*4. When locked to the word clock received via WORD CLOCK IN, the word clock will be output from WORD CLOCK OUT.  
12  
 
     
Appendix  
Electrical Characteristics  
Measured at DIGITAL OUT. Output impedance of signal generator: 150.  
Frequency Response  
fs=44.1kHz or 48kHz @20Hz–20kHz, with reference to –1dBFs @1kHz  
Input  
Output  
Conditions  
MIN  
TYP  
TYP  
MAX  
UNITS  
INPUT 1–8  
INPUT 1–8  
DIGITAL OUT 1–8  
DIGITAL OUT 1–8  
GAIN: –62 dB  
GAIN: +10 dB  
–3  
1
1
dB  
dB  
–1.5  
fs=88.2kHz or 96kHz@20Hz-40kHz, with reference to –1dBFs @1kHz  
Input  
Output  
Conditions  
Conditions  
MIN  
MAX  
UNITS  
INPUT 1–8  
INPUT 1–8  
DIGITAL OUT 1–8  
DIGITAL OUT 1–8  
GAIN: –62 dB  
GAIN: +10 dB  
–3  
1
1
dB  
dB  
–1.5  
Gain Error @1kHz  
Input  
Output  
DIGITAL OUT 1–8  
MIN  
TYP  
MAX  
UNITS  
INPUT 1–8  
GAIN: –62dB to +10dB  
–1  
1
dB  
Total Harmonic Distortion  
fs=44.1kHz or 48kHz  
Input  
Output  
Conditions  
MIN  
MIN  
TYP  
TYP  
MAX  
UNITS  
INPUT 1–8  
INPUT 1–8  
DIGITAL OUT 1–8  
DIGITAL OUT 1–8  
–1 dBFs output @1kHz GAIN: –62 dB  
–1 dBFs output @1kHz GAIN: +10 dB  
0.05  
0.01  
%
%
fs=88.2kHz or 96kHz  
Input  
Output  
Conditions  
MAX  
UNITS  
INPUT 1–8  
INPUT 1–8  
DIGITAL OUT 1–8  
DIGITAL OUT 1–8  
–1 dBFs output @1kHz GAIN: –62 dB  
–1 dBFs output @1kHz GAIN: +10 dB  
0.05  
0.01  
%
%
Hum & Noise  
fs=44.1kHz, 48kHz, 88.2kHz or 96kHz  
Input  
Output  
Conditions  
MIN  
MIN  
TYP  
MAX  
UNITS  
INPUT 1–8  
INPUT 1–8  
DIGITAL OUT 1–8  
DIGITAL OUT 1–8  
Rs=150 , GAIN: –62 dB  
–80  
dBFs  
dBFs  
Rs=150 , GAIN: +10 dB  
–110  
* Hum & Noise are measured with an A-weighting filter.  
EIN Measured with DA824 EIN=Equivalent Input Noise  
Input  
Output  
Conditions  
Rs=150 , GAIN: –62 dB  
TYP  
MAX  
UNITS  
INPUT 1–8  
DIGITAL OUT 1–8  
–128  
dB  
* EIN is measured with a 6 dB/octave filter @12.7 kHz; equivalent to a 20 kHz filter with infinite dB/octave attenuation.  
Dynamic Range  
Input  
Output  
Conditions  
MIN  
MIN  
TYP  
MAX  
UNITS  
INPUT 1–8  
DIGITAL OUT 1–8  
GAIN: +10 dB  
110  
dB  
* Dynamic Range is measured with an A-weighting filter.  
Crosstalk @1kHz  
From/To  
CH N  
To/From  
Conditions  
TYP  
MAX  
UNITS  
CH (N-1) or (N+1)  
adjacent inputs GAIN: +10dB  
–80  
dB  
Phantom Voltage  
Output  
Conditions  
MIN  
TYP  
MAX  
UNITS  
INPUT 1–8  
hot & cold: No load  
46  
48  
50  
V
13  
 
 
Appendix  
LED Level Meter  
Input  
Output  
Conditions  
OVER red LED: ON  
MIN  
TYP  
MAX  
UNITS  
0
dBFs  
dBFs  
dBFs  
dBFs  
dBFs  
dBFs  
–6 amber LED: ON  
–12 amber LED: ON  
–18 amber LED: ON  
–30 green LED: ON  
–48 green LED: ON  
–6  
–12  
–18  
–30  
–48  
INPUT 1–8  
DIGITAL OUT 1–8  
Parameter  
Conditions  
MIN  
TYP  
MAX  
UNITS  
Normal Rate  
39.69  
79.38  
50.88  
101.76  
10  
kHz  
kHz  
ns  
Frequency Range  
Double Rate  
DIGITAL IN fs=44.1kHz  
DIGITAL IN fs=48 kHz  
10  
ns  
Sampling  
Frequency  
DIGITAL IN fs=39.69–50.88 kHz  
DIGITAL IN fs=88.2 kHz  
DIGITAL IN fs=96 kHz  
20  
ns  
Jitter of PLL  
10  
ns  
10  
ns  
DIGITAL IN fs=79.38–101.76 kHz  
word clock : int 44.1 kHz  
word clock : int 48 kHz  
word clock : int 88.2 kHz  
word clock : int 96 kHz  
word clock : int 44.1 kHz  
word clock : int 48 kHz  
word clock : int 88.2 kHz  
word clock : int 96 kHz  
word clock : int 44.1 kHz  
word clock : int 48 kHz  
word clock : int 88.2 kHz  
word clock : int 96 kHz  
analog input to digital output @fs=48 kHz  
@fs=96 kHz  
20  
ns  
44.1  
48  
kHz  
kHz  
kHz  
kHz  
ppm  
ppm  
ppm  
ppm  
ns  
Frequency  
Accuracy  
Jitter  
88.2  
96  
50  
50  
50  
50  
5
Internal  
Clock  
5
ns  
5
ns  
5
ns  
0.9  
ms  
ms  
Signal Delay  
0.45  
Error Messages  
The AD8HR automatically diagnoses itself at the time of power up. If it detects a system abnormality,  
one of the following error messages appears. If an abnormality is detected, consult your Yamaha dealer.  
E1: The backup battery voltage is low. If the voltage is lowered further, the stored data will be erased. Ask  
your dealer to replace the battery.  
E2: The backup memory is corrupted.  
E3: The backup battery voltage is very low and the backup memory is corrupted.  
DIGITAL OUT A/B Pin Assignment Table  
*1  
Data Out Ch  
13  
1
Data In Ch  
1–2  
Signal  
Open  
GND  
1–2  
3–4  
5–6  
7–8  
Hot  
Cold  
1
5
6
7
8
2, 3, 4, 9,11,  
15, 16, 17  
10, 12, 13,  
22, 23, 24, 25  
Pin  
14  
25  
14  
18  
19  
20  
21  
*1. Data In Ch can be received only on DIGITAL OUT A.  
14  
 
   
Appendix  
HA REMOTE Pin Assignment Table  
Pin  
Signal Name  
Pin  
Signal Name  
*1  
1
2
3
4
5
N.C.  
6
RX+/DSR  
*1  
*1  
*1  
7
RTS  
RX-/RXD  
TX-/TXD  
8
CTS  
N.C.  
9
TX+/DTR  
GND  
*1. RS422/PC  
Dimensions  
480  
350  
When the  
included rubber  
feet are  
attached*  
65  
Unit mm  
* If you do not intend to rack mount the AD8HR, attach the included rubber feet to the bottom  
surface of the unit.  
Attach the rubber feet in the positions marked by small circles on the bottom.  
Specifications and descriptions in this owner’s manual are for information purposes only. Yamaha  
Corp. reserves the right to change or modify products or specifications at any time without prior notice.  
Since specifications, equipment or options may not be the same in every locale, please check with your  
Yamaha dealer.  
European models  
Purchaser/User Information specified in EN55103-1 and EN55103-2.  
Inrush Current: 35 A  
Conforms to Environments: E1, E2, E3 and E4  
15  
 
   
For details of products, please contact your nearest Yamaha  
representative or the authorized distributor listed below.  
Die Einzelheiten zu Produkten sind bei Ihrer unten aufgeführten  
Niederlassung und bei Yamaha Vertragshändlern in den jeweiligen  
Bestimmungsländern erhältlich.  
Pour plus de détails sur les produits, veuillez-vous adresser à Yamaha ou  
au distributeur le plus proche de vous figurant dans la liste suivante.  
Para detalles sobre productos, contacte su tiendaYamaha más cercana  
o el distribuidor autorizado que se lista debajo.  
POLAND  
NORTH AMERICA  
ASIA  
Yamaha Music Central Europe GmbH  
Sp.z. o.o. Oddzial w Polsce  
CANADA  
THE PEOPLE’S REPUBLIC OF CHINA  
Yamaha Canada Music Ltd.  
135 Milner Avenue, Scarborough, Ontario,  
M1S 3R1, Canada  
Yamaha Music & Electronics (China) Co.,Ltd.  
25/F., United Plaza, 1468 Nanjing Road (West),  
Jingan, Shanghai, China  
ul. 17 Stycznia 56, PL-02-146 Warszawa, Poland  
Tel: 022-868-07-57  
Tel: 416-298-1311  
THE NETHERLANDS/  
Tel: 021-6247-2211  
BELGIUM/LUXEMBOURG  
U.S.A.  
INDONESIA  
PT. Yamaha Music Indonesia (Distributor)  
PT. Nusantik  
Gedung Yamaha Music Center, Jalan Jend. Gatot  
Subroto Kav. 4, Jakarta 12930, Indonesia  
Tel: 21-520-2577  
Yamaha Music Central Europe GmbH,  
Branch Benelux  
Clarissenhof 5-b, 4133 AB Vianen, The Netherlands  
Tel: 0347-358 040  
Yamaha Corporation of America  
6600 Orangethorpe Ave., Buena Park, Calif. 90620,  
U.S.A.  
Tel: 714-522-9011  
FRANCE  
Yamaha Musique France  
BP 70-77312 Marne-la-Vallée Cedex 2, France  
Tel: 01-64-61-4000  
KOREA  
Yamaha Music Korea Ltd.  
Tong-Yang Securities Bldg. 16F 23-8 Yoido-dong,  
Youngdungpo-ku, Seoul, Korea  
Tel: 02-3770-0660  
CENTRAL & SOUTH AMERICA  
MEXICO  
Yamaha de México S.A. de C.V.  
Calz. Javier Rojo Gómez #1149,  
Col. Guadalupe del Moral  
C.P. 09300, México, D.F., México  
Tel: 55-5804-0600  
ITALY  
Yamaha Musica Italia S.P.A.  
Combo Division  
Viale Italia 88, 20020 Lainate (Milano), Italy  
Tel: 02-935-771  
MALAYSIA  
Yamaha Music Malaysia, Sdn., Bhd.  
Lot 8, Jalan Perbandaran, 47301 Kelana Jaya,  
Petaling Jaya, Selangor, Malaysia  
Tel: 3-78030900  
BRAZIL  
SPAIN/PORTUGAL  
Yamaha Musical do Brasil Ltda.  
Av. Reboucas 2636-Pinheiros CEP: 05402-400  
Sao Paulo-SP. Brasil  
Yamaha-Hazen Música, S.A.  
Ctra. de la Coruna km. 17, 200, 28230  
Las Rozas (Madrid), Spain  
Tel: 91-639-8888  
SINGAPORE  
Yamaha Music Asia Pte., Ltd.  
Tel: 011-3085-1377  
#03-11 A-Z Building  
ARGENTINA  
Yamaha Music Latin America, S.A.  
Sucursal de Argentina  
Viamonte 1145 Piso2-B 1053,  
Buenos Aires, Argentina  
Tel: 1-4371-7021  
140 Paya Lebor Road, Singapore 409015  
Tel: 747-4374  
SWEDEN  
Yamaha Scandinavia AB  
J. A. Wettergrens Gata 1  
Box 30053  
S-400 43 Göteborg, Sweden  
Tel: 031 89 34 00  
TAIWAN  
Yamaha KHS Music Co., Ltd.  
3F, #6, Sec.2, Nan Jing E. Rd. Taipei.  
Taiwan 104, R.O.C.  
PANAMA AND OTHER LATIN  
AMERICAN COUNTRIES/  
CARIBBEAN COUNTRIES  
Yamaha Music Latin America, S.A.  
Torre Banco General, Piso 7, Urbanización Marbella,  
Calle 47 y Aquilino de la Guardia,  
Ciudad de Panamá, Panamá  
Tel: 02-2511-8688  
DENMARK  
YS Copenhagen Liaison Office  
THAILAND  
Generatorvej 6A  
Siam Music Yamaha Co., Ltd.  
891/1 Siam Motors Building, 15-16 floor  
Rama 1 road, Wangmai, Pathumwan  
Bangkok 10330, Thailand  
DK-2730 Herlev, Denmark  
Tel: 44 92 49 00  
NORWAY  
Tel: 02-215-2626  
Norsk filial av Yamaha Scandinavia AB  
Tel: +507-269-5311  
Grini Næringspark 1  
OTHER ASIAN COUNTRIES  
Yamaha Corporation,  
Asia-Pacific Music Marketing Group  
Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650  
Tel: +81-53-460-2317  
N-1345 Østerås, Norway  
Tel: 67 16 77 70  
EUROPE  
THE UNITED KINGDOM  
Yamaha-Kemble Music (U.K.) Ltd.  
Sherbourne Drive, Tilbrook, Milton Keynes,  
MK7 8BL, England  
OTHER EUROPEAN COUNTRIES  
Yamaha Music Central Europe GmbH  
Siemensstraße 22-34, 25462 Rellingen, Germany  
Tel: +49-4101-3030  
OCEANIA  
Tel: 01908-366700  
AUSTRALIA  
GERMANY  
Yamaha Music Central Europe GmbH  
Siemensstraße 22-34, 25462 Rellingen, Germany  
Tel: 04101-3030  
AFRICA  
Yamaha Corporation,  
Asia-Pacific Music Marketing Group  
Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650  
Tel: +81-53-460-2313  
Yamaha Music Australia Pty. Ltd.  
Level 1, 99 Queensbridge Street, Southbank,  
Victoria 3006, Australia  
Tel: 3-9693-5111  
SWITZERLAND/LIECHTENSTEIN  
COUNTRIES AND TRUST  
Yamaha Music Central Europe GmbH,  
Branch Switzerland  
TERRITORIES IN PACIFIC OCEAN  
Yamaha Corporation,  
MIDDLE EAST  
TURKEY/CYPRUS  
Yamaha Music Central Europe GmbH  
Siemensstraße 22-34, 25462 Rellingen, Germany  
Tel: 04101-3030  
Seefeldstrasse 94, 8008 Zürich, Switzerland  
Tel: 01-383 3990  
Asia-Pacific Music Marketing Group  
Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650  
Tel: +81-53-460-2313  
AUSTRIA  
Yamaha Music Central Europe GmbH,  
Branch Austria  
Schleiergasse 20, A-1100 Wien, Austria  
Tel: 01-60203900  
OTHER COUNTRIES  
Yamaha Music Gulf FZE  
LB21-128 Jebel Ali Freezone  
P.O.Box 17328, Dubai, U.A.E.  
Tel: +971-4-881-5868  
CZECH REPUBLIC/SLOVAKIA/  
HUNGARY/SLOVENIA  
Yamaha Music Central Europe GmbH,  
Branch Austria, CEE Department  
Schleiergasse 20, A-1100 Wien, Austria  
Tel: 01-602039025  
HEAD OFFICE Yamaha Corporation, Pro Audio & Digital Musical Instrument Division  
Nakazawa-cho 10-1, Hamamatsu, Japan 430-8650  
Tel: +81-53-460-2441  
PA13  
Yamaha Manual Library  
This document is printed on recycled  
chlorine free (ECF) paper with soy ink.  
U.R.G., Pro Audio & Digital Musical Instrument Division, Yamaha Corporation  
© 2004 Yamaha Corporation  
WC24060 608IPAPx.x-0xC0  
Printed in Japan  
 

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