NAD Stereo Amplifier C245BEE User Manual

®
C 245BEE  
Four Channel Power Amplifier  
Owner’s Manual  
 
IMPORTANT SAFETY INSTRUCTIONS  
19 damage requiring Service - Unplug this product from the wall  
outlet and refer servicing to qualified service personnel under the  
following conditions:  
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN  
AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE USER  
TO THE PRESENCE OF UNINSULATEDDANGEROUS VOLTAGE”  
WITHIN THE PRODUCT’S ENCLOSURE THAT MAYBE OF  
SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC  
SHOCK TO PERSONS.  
a) When the power-supply cord or plug is damaged.  
b) If liquid has been spilled, or objects have fallen into the product.  
c) If the product has been exposed to rain or water.  
d) If the product does not operate normally by following the  
operating instructions. Adjust only those controls that are covered  
by the operating instructions as an improper adjustment of other  
controls may result in damage and will often require extensive  
work by a qualified technician to restore the product to its normal  
operation.  
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS  
INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT  
OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN THE  
LITERATURE ACCOMPANYING THE APPLIANCE.  
e) If the product has been dropped or damaged in any way.  
f) when the product exhibits a distinct change in performance-this  
indicates a need for service.  
20 replacement parts - When replacement parts are required, be  
sure the service technician has used replacement parts specified  
by the manufacturer or have the same characteristics as the  
original part. Unauthorized substitutions may result in fire, electric  
shock, or other hazards.  
21 Safety check - Upon completion of any service or repairs to this  
product, ask the service technician to perform safety checks to  
determine that the product is in proper operating condition.  
22 wall or ceiling mounting - The product should be mounted to a wall  
or ceiling only as recommended by the manufacturer.  
23 heat - The product should be situated away from heat sources such as  
radiators, heat registers, stoves or other products (including amplifiers)  
that produce heat.  
The equipment draws its nominal non-operational power from the AC  
outlet with its POWER switch in the ON position.  
The socket-outlet shall be installed near the apparatus and shall be easily  
accessible.  
caution  
Changes or modifications to this equipment not expressly approved by  
NAD Electronics for compliance could void the user’s authority to operate  
this equipment.  
warning  
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS  
PRODUCT TO RAIN OR MOISTURE.  
caution regarding placement  
To maintain proper ventilation, be sure to leave a space around the unit  
(from the largest outer dimensions including projections) that is equal to or  
greater than shown below.  
caution  
TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE  
SLOT, FULLY INSERT.  
Left and Right Panels: 10 cm  
Rear Panel: 10 cm  
Top Panel: 50 cm  
 
IMPORTANT SAFETY INSTRUCTIONS  
noteS on environmental protection  
At the end of its useful life, this product must not be disposed  
of with regular household waste but must be returned to a  
collection point for the recycling of electrical and electronic  
equipment. The symbol on the product, user’s manual and  
packaging, point this out.  
The materials can be reused in accordance with their markings. Through  
re-use, recycling of raw materials or other forms of recycling of old  
products, you are making an important contribution to the protection of  
our environment. Your local administrative office can advise you of the  
responsible waste disposal point.  
information about collection and diSpoSal of  
waSte batterieS (directive 2006/66/ec of the european  
parliament and the council of european union) (for  
european cuStomerS onlY)  
Batteries bearing any of these symbols indicate  
that they should be treated asseparate collection”  
and not as municipal waste. It is encouraged that  
necessary measures are implemented to maximize  
the separate collection of waste batteries and  
to minimize the disposal of batteries as mixed  
municipal waste.  
End-users are exhorted not to dispose waste  
batteries as unsorted municipal waste. In order to  
achieve a high level of recycling waste batteries, discard waste batteries  
separately and properly through an accessible collection point in your  
vicinity. For more information about collection and recycling of waste  
batteries, please contact your local municipality, your waste disposal service  
or the point of sale where you purchased the items.  
By ensuring compliance and conformance to proper disposal of waste  
batteries, potential hazardous effects on human health is prevented and  
the negative impact of batteries and waste batteries on the environment  
is minimized, thus contributing to the protection, preservation and quality  
improvement of the environment.  
note: the c 245bee iS not an auto voltage power  
amplifier. connect onlY to the preScribed ac outlet, i.e.,  
120v 60hz or 230v 50hz.  
record Your model number (now, while You can See it)  
The model and serial number of your new C 245BEE are located on the  
back of the cabinet. For your future convenience, we suggest that you  
record these numbers here:  
Model no: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Serial no.: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
NAD is a trademark of NAD Electronics International, a division of Lenbrook Industries Limited  
Copyright 2009, NAD Electronics International, a division of Lenbrook Industries Limited  
 
INTRODUCTION  
getting Started  
QUICK START  
BARE WIRES AND PIN CONNECTORS  
In case you simply cannot wait to experience the performance of your  
new NAD C 245BEE Four Channel Amplifier, we provide the following  
QUICKSTART instructions to get you underway.  
warning: The terminals marked with this symbol  
are hazardous live. External wiring connected to these  
terminals requires installation by an instructed person or  
the use of ready-made leads or cords.  
Please make all the connections to your C 245BEE with the unit unplugged.  
It is also advisable to power-down or unplug all associated components  
while making or breaking any signal or AC power connections.  
Bare wires and pin sockets should be inserted into the hole in the shaft  
of the terminal. Unscrew the speaker terminal’s plastic bushing until the  
hole in the screw shaft is revealed. Insert the pin or bare cable end into  
the hole and secure the cable by tightening down the terminal’s bushing.  
Ensure bare wire from the speaker cables does not touch the back panel or  
another socket. Ensure that there is only 1/2(1cm) of bare cable or pin and  
no loose strands of speakers wire.  
1
2
3
Connect your speakers to the CHANNEL A (or CHANNEL B) SPEAKERS  
terminals of C 245BEE.  
Connect your Preamplifier’s PRE OUT to the C 245BEE rear panel’s  
CHANNEL A (or CHANNEL B) input sockets.  
Make sure to set the following conditions: your Preamplifier’s volume  
level set to minimum and C 245BEE’s +12V Trigger IN switch set toOFF”  
position.  
4
5
Connect the AC cord to the C 245BEE’s AC Mains input and then plug  
into an AC outlet.  
Switch the POWER switch on the rear panel to theONsetting in order  
to turn the C 245BEE to standby mode. The Standby LED indicator  
embedded around the bezel of the STANDBY button will illuminate  
amber.  
6
7
Press the STANDBY button to turn ON the C 245BEE. The Standby LED  
indicator will turn from amber to blue.  
Press the front panel button CHANNEL A (or CHANNEL B) to select  
desired input source.  
SAVE THE PACKAGING  
Please save the box and all of the packaging in which your C 245BEE  
arrived. Should you move or otherwise need to transport your C 245BEE,  
this is by far the safest container in which to do so. We’ve seen too many  
otherwise perfect components damaged in transit for lack of a proper  
shipping carton, so please: Save that box!  
NOTES ON INSTALLATION  
Your NAD C 245BEE should be placed on a firm, level surface. Avoid  
placing the unit in direct sunlight or near sources of heat and damp. Allow  
adequate ventilation. Do not place the unit on a soft surface like a carpet.  
Do not place it in an enclosed position such a bookcase or cabinet that  
may impede the air-flow through the ventilation slots. Make sure the unit is  
switched off before making any connections.  
The RCA sockets on your NAD C 245BEE are colour coded for convenience.  
Red and white are Right and Left audio respectively.  
Use high quality leads and sockets for optimum performance and reliability.  
Ensure that leads and sockets are not damaged in any way and all sockets  
are firmly pushed home.  
For best performance, use quality speaker leads of 16 gauge (1.5mm)  
thickness or more. If the unit is not going to be used for some time,  
disconnect the plug from the AC socket.  
Should water get into your NAD C 245BEE, shut off the power to the unit  
and remove the plug from the AC socket. Have the unit inspected by a  
qualified service technician before attempting to use it again.  
do not remove the cover; there are no uSer-Serviceable  
partS inSide.  
Use a dry soft cloth to clean the unit. If necessary, lightly dampen the cloth  
with soapy water. Do not use solutions containing benzol or other volatile  
agents.  
 
IDENTIFICATION OF CONTROLS  
front panel  
1
2
3
4
1
StandbY button: Press this button to switch ON the C 245BEE.  
The Standby LED indicator will turn from amber to blue. Pressing the  
STANDBY button again turns the unit back to standby mode.  
3
4
channel a: Press to select the input source connected at the rear  
panel CHANNEL A input sockets.  
channel b: Press to select the input source connected at the rear  
panel CHANNEL B input sockets. Both CHANNEL A and CHANNEL B can  
be activated at the same time if an input source is connected to their  
respective rear panel channel input sockets.  
IMPORTANT NOTICE  
The rear panel POWER switch must be in the ON position for the  
STANDBY button to activate.  
2
StandbY led: This indicator will light up amber when the C 245BEE  
is in standby state. When the C 245BEE is at ON state, this indicator will  
illuminate blue.  
In cases of serious abuse of the C 245BEE, such as excessively low  
loudspeaker impedance and short circuit, the C 245BEE will engage its  
Protection circuitry, indicated by the Standby LED turning from blue to  
red and the sound being muted.  
In such a case, turn the C 245BEE OFF by the rear panel POWER switch,  
wait for it to cool down and/or check the speaker connections, making  
sure the overall loudspeaker impedance doesn’t go below 4 ohms or  
8 ohms in Bridge mode. Once the cause for the protection circuitry to  
engage has been removed, switch ON the rear POWER switch and the  
Standby button to resume normal operation.  
 
IDENTIFICATION OF CONTROLS  
rear panel  
3
4
1
2
5
6
7
8
9
10 11  
ATTENTION!  
Please make sure that the C 245BEE is powered OFF or unplugged before making any connections. It is also advisable to power-down or unplug all  
associated components while making or breaking any signal or AC power connections.  
1
channel b SpeakerS (applicable to channel b only): Connect the  
right speaker to the CHANNEL B SPEAKERS terminals markedR +andR-”  
ensuring that theR+is connected to the+terminal on your loudspeaker  
and theR-is connected to the loudspeaker’s-terminal. Connect the  
terminals markedL+andL-to the left speaker in the same way.  
CHANNEL A OUT is a line levelloop throughoutput. The same level  
of input signal at the CHANNEL A IN sockets is available at CHANNEL A  
OUT sockets thereby allowing the same signal to be shared or passed  
on to another amplifier.  
Always turn OFF the C 245BEE and other components in the system  
before connecting or disconnecting anything to the CHANNEL A IN  
sockets.  
In Bridge Mode, connect the single speaker to the terminals markedR +”  
andL+ensuring that theL+is connected to the+” terminal on your  
loudspeaker and theR+is connected to the loudspeaker’s “-terminal.  
5
bridge mode (applicable to channel a only): The C 245BEE  
amplifier can be configured to be MONO (Bridge Mode), more than  
doubling its output power. This way, the C 245BEE can be used as  
part of a high power stereo or home-theatre system, by connecting  
additional power amplifiers.  
2
3
bridge mode (applicable to channel b only): Set the BRIDGE  
MODE switch to theONposition and connect the speaker to the  
terminals markedL +andR+ensuring that theL+is connected to  
the “+terminal of your loudspeaker and theR+is connected to the  
loudspeaker’s “ - terminal. Connect the input source to the CHANNEL  
B IN sockets.  
In BRIDGED MODE, the C 245BEE will produce approximately 70W into  
an 8 ohm loudspeaker. In this mode, the amplifier sections will react  
as though the speaker impedance has been halved. Low impedance  
speakers (under 8 ohms) are not recommended when using Bridge  
Mode as these may cause the amplifier’s thermal cut-out to operate if  
played at high levels.  
channel b (in/out): Connect the output from a pre-amplifier or  
processor, such as a surround-sound decoder, to this set of CHANNEL  
B IN sockets. Use a twin RCA-to-RCA lead to connect the left and right  
“Audio Outputof the preamplifier or processor to these CHANNEL B  
input sockets.  
Set the BRIDGE MODE switch to theONposition and connect the  
speaker to the terminals markedL +andR+ensuring that theL+”  
is connected to the “+terminal of your loudspeaker and theR+is  
connected to the loudspeaker’s “ - terminal. Connect the input source  
to the CHANNEL A IN sockets.  
CHANNEL B OUT is line levelloop throughoutput. The same level of  
input signal at the CHANNEL B IN sockets is available at CHANNEL B  
OUT sockets thereby allowing the same signal to be shared or passed  
on to another amplifier.  
Always turn OFF the C 245BEE and other components in the system  
before connecting or disconnecting anything to the CHANNEL B IN  
sockets.  
NOTE  
Do not connect anything to the Right Input socket when Bridge Mode is  
selected.  
4
channel a (in/out): Connect the output from a pre-amplifier or  
processor, such as a surround-sound decoder, to this set of CHANNEL  
A IN sockets. Use a twin RCA-to-RCA lead to connect the left and right  
“Audio Outputof the preamplifier or processor to these CHANNEL A  
input sockets.  
 
IDENTIFICATION OF CONTROLS  
rear panel  
6
channel a SpeakerS (applicable to channel a only): Connect the  
right speaker to the CHANNEL A SPEAKERS terminals markedR +andR-”  
ensuring that theR+is connected to the+terminal on your loudspeaker  
and theR-is connected to the loudspeaker’s-terminal. Connect the  
terminals markedL+andL-to the left speaker in the same way.  
8
9
+12v trigger input: The +12V Trigger input allows the C 245BEE  
to be switched remotely from standby mode to ON and vice-versa  
by ancillary equipments such as a preamplifier, AV processor, etc. The  
controlling device must be equipped with a 12V trigger output to  
use this feature. Refer also to the section above about+12V TRIGGER  
IN/INPUT SENSE - OFF/AUTO.  
In Bridge Mode, connect the single speaker to the terminals marked  
“R +andL+ensuring that theL+is connected to the+” terminal  
on your loudspeaker and theR+is connected to the loudspeaker’s “-”  
terminal. Refer also to the section below aboutBRIDGE MODE.  
fuSe holder: In the unlikely event a fuse may need to be replaced,  
unplug the AC cord from the wall. Then, remove all connections from  
the amplifier. Use a flathead screw driver or similar to open the fuse  
holder via the slot indicated. With the screw driver in place, push and  
turn counterclockwise to open the fuse holder. Only replace the fuse  
with the same type, size, and specification – T3.15AL 250V for 230V  
version or T6.3AL 250V for 120V version.  
Always use heavy duty (16 gauge; 1.5mm, or thicker) stranded wire to  
connect loudspeakers to your NAD C 245BEE. The high-current binding  
post terminals can be used as a screw terminal for cables terminating in  
spade or pin sockets or for cables with bare wire ends.  
IMPORTANT NOTICE  
7
+12v trigger in/input SenSe - off/auto: This dual function  
switch alternates between sensing a +12V input as applied through the  
+12V trigger IN jack or sensing any input signal applied at the CHANNEL  
A IN or CHANNEL B IN sockets.  
Do not use any substitute fuses of different types or with different ratings  
or values. Failure to observe this precaution may cause damage to the  
amplifier circuits and may create a fire hazard and/or defeat the safety  
built into the amplifier and may void the warranty.  
At AUTO setting and with the +12V trigger input of the C 245BEE  
connected to the DC output jack of a compatible auxiliary component,  
the C 245BEE can be switched remotely from standby mode to ON  
and vice-versa. Use a 3.5mm mini-jack to pass +12V from the auxiliary  
equipment into the C 245BEE.  
10 ac mainS input: The C 245BEE comes supplied with a separate AC  
Mains cable. Before connecting the cable to a live wall socket ensure  
that it is firmly connected to the C 245BEE’s AC Mains input socket first.  
i.e., 120V 60 Hz (for 120V version models of C 245BEE only) or 230V 50  
Hz (for 230V version models of C 245BEE only). Always disconnect the  
AC Mains cable plug from the live wall socket first, before disconnecting  
the cable from the C 245BEE’s Mains input socket.  
If there is no 3.5mm mini-jack inserted at the +12V Trigger IN jack and  
with the switch still at AUTO setting, the C 245BEE will instantaneously  
turn ON from standby state if it senses any input signal (approximately  
above 50mV RMS input) applied through CHANNEL A IN or CHANNEL  
B IN sockets.  
11 power Switch: The POWER switch supplies the master AC mains  
power for the C 245BEE. Refer to the ATO LOGIC chart below for a better  
understanding of the role of the POWER switch when switching ON  
or OFF the C 245BEE. If you intend not to use the C 245BEE for long  
periods of time (such as when on vacation), switch OFF the POWER  
switch.  
In the absence of a +12V trigger input or any input signal at CHANNEL  
A IN or CHANNEL B IN sockets and with OFF/AUTO switch set to AUTO,  
the C 245BEE will switch automatically to standby mode. Slide the OFF/  
AUTO switch to OFF setting for the C 245BEE to be normally switched  
ON (or back to standby mode) using the front panel STANDBY button.  
IMPORTANT NOTICE  
With the rear panel POWER switch at ON position and the OFF/AUTO  
switch at AUTO setting, the C 245BEE cannot be switched ON using the  
front panel STANDBY button. Slide the OFF/AUTO switch to OFF setting  
for the C 245BEE to be normally switched ON (or back to standby mode)  
using the front panel STANDBY button.  
NOTES  
Switch the rear panel POWER switch to ON position in order to make use  
of the +12V Trigger IN or Input Sense AUTO feature as well as the front  
panel STANDBY button.  
It will take about 10 minutes for the C 245BEE to go to standby mode  
when the input signal source is turned OFF.  
 
IDENTIFICATION OF CONTROLS  
rear panel  
AUTOMATED TURN-ON LOGIC (ATO LOGIC)  
same manner by which it was activated. In other words, if the C 245BEE is  
switched ON via a +12V-control signal, it cannot be switched to standby  
mode via the front panel STANDBY button, it must wait for removal of the  
+12V-control signal. In practice, you probably would use only one of the  
methods once your C 245BEE is installed.  
The C 245BEE may be turned ON in any one of three discrete ways for  
complete system flexibility - from the front panel standby button, the 12V-  
TRIGGER circuit or by the input signal-sensing circuit. The ON/OFF power  
control is managed by the Automated Turn-On logic or ATO Logic circuit  
that requires the C 245BEE to be switched back to standby mode in the  
ATO LOGIC CHART  
+12V TRIGGER IN  
INPUT SENSE  
POWER SWITCH  
STANDBY BUTTON  
(using 3.5mm mini-jack plug)  
CONDITION  
Power  
ON  
Power  
OFF  
Standby Mode  
(amber)  
Switch ON  
(blue)  
Mini-jack  
Input signal  
>20mV  
Input signal  
<20mV  
+12V  
0V  
-
unplugged  
POWER switch : OFF  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : OFF  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : OFF  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : OFF  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : OFF  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : OFF  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: OFF  
POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: AUTO  
POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: AUTO  
POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: AUTO  
POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: AUTO  
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POWER switch : ON  
+12V TRIGGER IN/INPUT SENSE Sense: AUTO  
-
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NOTE  
If the +12V TRIGGER IN/INPUT SENSE switch is set to OFF, the presence or absence of +12V trigger input or any input signal at the CHANNEL A IN or  
CHANNEL B IN sockets will not have any effect on the C 245BEE, effectively defeating both features.  
 
REFERENCE  
troubleShooting  
condition  
poSSible cauSeS  
poSSible SolutionS  
No power.  
The power cord is disconnected.  
Plug the power cord into the wall outlet  
securely.  
C 245BEE at standby mode.  
Press front panel STANDBY button to switch  
ON the C 245BEE.  
Rear panel POWER switch not at ON setting.  
Set the rear panel POWER switch to ON  
setting.  
C ꢀꢂꢃBEE always at standby mode;  
cannot be switched ON using the  
front panel STANDBY button.  
+12V TRIGGER IN/INPUT SENSE switch set toAUTO”  
position and a jack is plugged-in at +12V Trigger IN  
socket or an input signal is applied at the rear panel  
CHANNEL A IN or CHANNEL B IN sockets.  
Slide the +12V TRIGGER IN/INPUT SENSE  
switch toOFFposition and unplug the jack  
at the +12V Trigger IN socket or remove  
the input signal applied at the rear panel  
CHANNEL A IN or CHANNEL B IN sockets.  
The C 245BEE is not powered OFF using the front  
panel STANDBY button.  
Power ON the C 245BEE in the same manner  
by which it was deactivated.  
No sound.  
Power AC lead unplugged or power not switched ON.  
Check if AC lead is plugged-in and POWER  
switched ON (along with the corresponding  
ATO logic configuration).  
Front panel CHANNEL A or CHANNEL B button is not  
activated.  
Press CHANNEL A or CHANNEL B to select  
active input signal available at the rear panel  
CHANNEL A IN or CHANNEL B IN sockets.  
No input signal applied through the rear panel  
CHANNEL A IN or CHANNEL B IN sockets.  
Ensure that there is active input signal  
applied through the rear panel CHANNEL A  
IN or CHANNEL B IN sockets.  
No sound one channel.  
Speaker not properly connected or damaged.  
Input lead disconnected or damaged.  
Speakers wired out of phase.  
Check connections and speakers.  
Check leads and connections.  
Weak bass/diffused stereo image.  
Check connections to all speakers in the  
system.  
STANDBY LED stays red upon  
setting POWER switch to ON.  
There is short circuit in the speaker cabling.  
Switch C 245BEE OFF and check speaker  
cable connections for both speaker terminals  
at the rear panel.  
10  
 
REFERENCE  
SpecificationS  
OVERALL SPECIFICATIONS  
channel a in or channel b in, channel a SpeakerS or channel b SpeakerS  
Continuous output power into 8 Ω and 4 Ω (both channels driven)  
>35 W (ref. rated THD, 20 Hz – 20 kHz)  
Continuous output power into 8 Ω (Mono, Bridge mode)  
Rated THD (250 mW to rated power, CCIF IMD, DIM 100)  
>70 W (ref. 20 Hz - 20 kHz, <0.02 % THD)  
<0.03 % (ref. 20 Hz - 20 kHz)  
55 W  
IHF dynamic power - 8 Ω  
4 Ω  
85 W  
2 Ω  
IHF dynamic power (Bridge mode) - 8 Ω  
4 Ω  
95 W  
160 W  
180 W  
Peak output current  
Signal/Noise ratio  
>20 A (ref. 1 Ω, 1 ms)  
>95 dB (A-weighted, ref. 1 W)  
>110 dB (A-weighted, ref. 35 W)  
>180 (ref. 8 Ω, 50 Hz and 1 kHz)  
0.3 dB (ref. 20 Hz - 20 kHz)  
3Hz - 100 kHz (ref. -3 dB)  
20 kΩ + 470 pF  
Damping factor  
Frequency response  
Input impedance (R and C)  
Input sensitivity  
270 mV (ref. rated power)  
35 dB  
Voltage gain  
Minimum input level for AUTO TRIGGER  
Time to power OFF at no signal in AUTO mode  
50 mV at 1 kHz  
<10 minutes  
power conSumption  
Normal operation  
Standby power  
Idle power  
270 W (ref. 230V AC 50 Hz; 120V AC 60 Hz)  
<1 W  
<55 W  
DIMENSION AND WEIGHT  
Dimensions (W x H x D)  
435 x 80 x 285 mm (Net)  
435 x 95 x 315 mm (Gross*)  
7.3 kg  
Net weight  
Shipping weight  
8.8 kg  
* - Gross dimensions include feet, front panel buttons and extended speaker terminals.  
information about C 245BEE.  
11  
 
©2009 nad electronicS international  
a diviSion of lenbrook induStrieS limited  
All rights reserved. NAD and the NAD logo are trademarks of NAD Electronics International, a division of Lenbrook Industries Limited.  
No part of this publication may be reproduced, stored or transmitted in any form without the written permission of NAD Electronics International.  
C 245BEE Manual Issue 1.5-07/09  
 

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