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Stereo power amplifier

Item # 745C275BEE

Good old-fashioned construction quality and the kind of power you need to drive virtually any speaker system with ease.

Good old-fashioned construction quality and the kind of power you need to drive virtually any speaker system with ease.

California customers:
Please click here for your Proposition 65 warning.

Item # 745C275BEE

Temporarily out of stock

Expected: 6/29/2020


About the NAD C 275BEE

NAD designed the C 275BEE power amplifier from the ground up to deliver the best possible performance in its price range. With a conservative 150-watt-per-channel rating, this potent amp generates the kind of power you need to drive virtually any speaker system with ease. Match it with the NAD C 165BEE stereo preamplifier to create a sound system capable of impressive dynamics, musical detail, and transparency.

NAD designed the C 275BEE power amplifier from the ground up to deliver the best possible performance in its price range. With a conservative 150-watt-per-channel rating, this potent amp generates the kind of power you need to drive virtually any speaker system with ease. Match it with the NAD C 165BEE stereo preamplifier to create a sound system capable of impressive dynamics, musical detail, and transparency.

Advanced technology for stunning sound
The C 275BEE employs many of the same high-end features found on NAD's top-of-the-line Master Series components, including NAD's exclusive PowerDrive™ technology. This unique circuit automatically senses your speaker's impedance, then optimizes the amp's power supply settings to deliver the most dynamic power possible. This allows it to easily drive low-impedance loads, including many of today's high-end speakers, which often run closer to four ohms than eight. Plus, a patented distortion-canceling circuit in the amp's output stage ensures your music stays clean and pure.

A strong, vibration-resistant build
Along with all of its advanced technology, NAD gave the C 275BEE a big helping of good old-fashioned construction quality. This amplifier boasts a heavy-gauge steel chassis for added durability and vibration resistance. Its power supply, the heart of any amplifier, utilizes an interference-canceling toroidal transformer and heavy copper buss bars to channel enormous amounts of current to the custom gold-plated speaker binding posts. Additional premium-quality internal components — such as four pairs of discrete high-wattage output transistors per channel — allow the C 275BEE to handle prolonged high-power operation effortlessly.


Product highlights:

  • 150 watts per channel into 4 or 8 ohms (20-20,000 Hz) at 0.008% THD with 2 channels driven
  • 4-ohm stable for use with a wide range of speakers
  • signal-to-noise ratio: 102 dB
  • PowerDrive™ circuit with automatic speaker impedance sensing delivers maximum dynamic power output regardless of speaker load
  • switchable Soft Clipping™ circuit gently limits amplifier power output to reduce risk of speaker damage due to prolonged high volume operation
  • distortion-canceling circuit for high-accuracy sound
  • high-current toroidal power transformer
  • all-discrete circuitry with four pairs of high-wattage output transistors per channel
  • 1 pair RCA preamp inputs (switchable fixed or variable)
  • two pairs of custom gold-plated speaker binding posts
  • bridged mode for mono operation (330 watts x 1)
  • 12-volt trigger input
  • detachable AC power cord
  • <1W Standby Power Consumption
  • free of lead and other environmentally dangerous substances
  • weight: 32.2 lbs.
  • 17-1/8"W x 5-15/16"H x 16-1/16"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # C275BEE

What's in the box:

  • Amplifier
  • 6' Power cord
  • Owner's manual (English/ French/ Spanish/ Italian/ German/ Dutch/ Swedish/ Russian)
  • Warranty information

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Crutchfield response

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More details on the NAD C 275BEE

Stacey B.

Product Research



Soft Clipping: NAD's Soft Clipping circuit gently limits the output of the C 275BEE to minimize audible distortion when the amplifier is over-driven. While Soft Clipping can be left on at all times to reduce the likelihood of audible distortion from excessive volume settings, you can also turn the circuit off for critical listening if you prefer.

Bridgeable: The C 275BEE can be bridged to a single channel, more than doubling the power output. When bridged, the minimum recommended speaker impedance is 8Ω.

A/B Speaker Terminals: The amplifier features A & B speaker terminals to power two pair of loudspeakers. The amplifier supports 4Ω speakers when only one pair is connected, however, when two pair of speakers are connected a minimum impedance of 8Ω is recommended.

Input Select: A switch on the rear panel allows you to set the input to Fixed or Variable. In the fixed position the input signal is routed directly to the amplifier; typically used in single amp systems, or when multiples of the same amp are used. The variable position allows you to adjust the input level before amplification, useful when matching output levels in a multi-amp system, bi-amping speakers, or extending the volume control range of the preamp.

Auto Turn-on: The C 275BEE can be turned on automatically one of two ways; +12 volt trigger from another component or by sensing an input signal.


Rear Panel:

  • Input Select: choose Fixed or Variable (variable allows volume adjustment using the Input Level dial)
  • Input Level: rotary dial; adjusts volume to match another amplifier
  • Bridge Mode: switch between stereo and mono amplifier output
  • Soft Clipping: turn the Soft Clipping circuit on/off
  • Power: master power switch
  • +12V/Input Sensing: choose +12 volt trigger or signal sensing to automatically turn the amp on


Rear Panel:

  • Speakers: the speaker binding posts will accept single banana plugs, pin connectors, spade lugs up to 0.625" wide, and bare wire up to 10 gauge; there are four speaker outputs, A (left and right) and B (left and right); when powering two pair of speakers a minimum impedance of 8Ω is recommended
  • Signal Input: stereo RCA input jacks
  • 12 Volt Trigger: turn the amp on/off along with another device that has a +12 volt trigger output
  • AC Input: 2-pole IEC power input for use with included cord (or optional upgraded cord)


Amplifier Section:

  • Continuous Power: 150 watts x 2 into an 8Ω or 4Ω load, 20 Hz - 20 kHz, no more than 0.008% THD, both channels driven simultaneously
  • Continuous Bridged Power: 330 Watts x 1 into an 8Ω load, 20 Hz - 20 kHz, no more than 0.02% THD
  • Dynamic Power:
    • 8Ω: 250 watts x 2
    • 4Ω: 410 watts x 2
    • 8Ω Bridged: 800 watts x 1
  • Rated THD (Total Harmonic Distortion): <0.008% (driving both channels 20 Hz - 20k Hz simultaneously at 8Ω)
  • Signal/Noise:
    • >102 dB (A-weighted, ref 1 watt)
    • >123 dB (A-weighted, ref 150 watt)
  • Damping factor: >180 (ref 8Ω, 50 Hz and 1 kHz)
  • Frequency response:
    • +/- 0.1 dB: 20 Hz-20 kHz
    • - 3 dB: 3 Hz-100 kHz
  • Input impedance:
    • Fixed: 10 kΩ + 200 pF
    • Variable: 100 kΩ + 100 pF
  • Input sensitivity: 1.2 volts (ref rated power)
  • Voltage gain: 29 dB
  • Power Requirement: AC 120V 60Hz
  • Power Consumption:
    • Normal Operation: 312W
    • Standby: <1W
    • Idle: <100W
  • Weight: 32.2 lbs (14.6 kg)

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Customer Q&A

Crutchfield asked: Why did you buy this?
Need to power 2 front 4 ohm speakers. I burned out the power supply of my Yamaha AV Receiver trying to drive the speakers without an amplifier. Strong reviews on sound quality posted online. Amplifier does not get as hot as many others in this price range. [ Keith  Mar 14, 2019 ]
I have a Denon AVR-X4300H (9.2 channel) and wanted a quality power amp to drive my new GoldenEar Triton One speakers. This gives me a home theatre system of 7.2.4 (11.2) channels of sweetness. [ Dusty  Mar 30, 2018 ]
Right combination of price, power, and good reviews. [ Douglas  Dec 01, 2017 ]
NAD C 275BEE is a top seller. I have not read one bad review about this amp. Last year i did a big upgrade, and wanted to keep it going with this starter audiophile amp. [ EnlightMent  Dec 01, 2016 ]
I have a NAD preamp and tuner. Very happy with the clean sound from them. When my very old Carver amp started acting up, More NAD seemed the logical choice. [ Winsor  Oct 25, 2016 ]
gotta make klipsch happy in a clean way [ Brian  Jun 03, 2016 ]
aligns with the C375BEE PreAmp for extra power [ brian  Mar 14, 2016 ]
Surprisingly favorable reviews, given it's price point. [ Stephen  Dec 31, 2015 ]
Speaker manufacturer recommended [ Charles  Dec 16, 2015 ]
I currently have a Nad C272 just went bad. Nad is a great product is the New Amp. fits the same requirements as the old one. The old amp is 11 years old. [ mmszpak  Dec 14, 2015 ]
A lot of positive from user reviews. [ KHUONG  Dec 09, 2015 ]

6 questions already asked

is this class a/b or d with smps?
[ jed  Jan 20, 2019 ]
4 answers
It is a class D amp however I do not know if it is using a switched mode power supply. NAD's literature names a proprietary design that is a mystery to me. My hunch is that it is a variation on a smps type of power supply. Aside from that all I can say is that this amp is VERY neutral and clean sounding. The bass is very well described and tight but not lacking in any way. Perhaps you can get a better answer about the power supply by calling NAD. Sorry I could not be of more help.
[ VINCENT  Jan 21, 2019 ]
Discrete Class A.
[ Steven  Jan 21, 2019 ]
Per a brochure this is Class A. And from experience, I can say the power in idle is enough to warm up the top of the amp (significant, but not alarmingly), so I believe it is Class A.
[ Bill  Jan 20, 2019 ]
NAD uses a switch mode power supplies and Class D output stages. (D with SMPS) This is the best information I could find regarding Class type for NAD amps. Hope this helps.
[ Robert  Jan 20, 2019 ]
On the NAD C 275BEE, how do you, or can you, select speaker A, B, or A & B?
[ Andrew  Oct 10, 2018 ]
5 answers
All of the above, I love this amp!
[ Mark  Oct 16, 2018 ]
You cannot select between the A and B speakers, if both sets of terminals are being used. Both sets of outputs will be driven simultaneously, where the A speakers are normally the main pair of speakers and the B speakers are for another set of speakers, say in a different room.
[ ADRIAN  Oct 10, 2018 ]
I only run one pair of speakers, from my 275. It is controlled by my NAD pre-amp. HTH!
[ Steven  Oct 10, 2018 ]
No selection possible
[ David  Oct 10, 2018 ]
No, Those selections are made on your preamplifier. The preamp activates the necessary connection.
[ Tony W.  Oct 10, 2018 ]
How hot does this run?
[ W. Brian  Feb 07, 2018 ]
3 answers
less than expected
[ luis  Feb 09, 2018 ]
It just warms warm. Certainly not what I'd consider "hot" by any means. Not as hot as my Mark Levinson ML-9--the heat sinks can get so hot they hurt to touch. Not so with the NAD. Mine is enclosed on 3 sides with about 2.5" on either side, 2" in back. The shelf above it is about 8-10" above.
[ David  Feb 07, 2018 ]
not as i want to
[ luis  Feb 07, 2018 ]
Can you bi-wire your speakers with this amp?
[ H  Jan 28, 2018 ]
5 answers
I believe this is possible but I have not done it. If possible, see pages 7 & 8 of the manual. I can not put a link to it in this reply.
[ Bill  Feb 03, 2018 ]
Yes, you can. Here's an excerpt from the user's manual: Bi-Amping Some loudspeakers have separate connection terminals for their LF (Low Frequency) and HF (High Frequency) sections. Where a separate power amplifier is used for the LF and HF section, this facility allows to "Bi-Amp" such speakers which may improve overall sound quality. When Bi-Amping with different models of power amplifiers, it is likely to occur that one power amplifier has more "gain" than the other, resulting in a mismatch in level for the woofer and tweeter of the speaker. Adjust the level control so that woofer and tweeter are in perfect balance with each other (identical gain of power amplifiers).
[ ADRIAN  Feb 03, 2018 ]
Yes. They nominal impedance of each set must be 8-ohms. No less.
[ Steven  Feb 03, 2018 ]
Yes you can. Both sets of binding posts are powered all the time.
[ Shane  Feb 02, 2018 ]
Yes, with the proper bi-wire cable, or cables, this amp can be used to bi-wire a speaker with separate low and high frequency binding posts; be sure to remove the bridge between the posts beforehand. With that said, there is little evidence that bi-wiring improves sound quality. Bi-amping, on-the-other-hand, should produce a notable improvement in sound quality and the C 275BEE can be used to bi-amp if used with another C275BEE and stereo pre-amplifier such as the NAD C 165BEE, or a single NAD C 375BEE. The C275BEE is a versatile amplifier that can be bridged for speakers of 8 ohms, or effectively drive speakers of either 4 ohm, 6 ohm or 8 ohm impedance.
[ GREG  Feb 02, 2018 ]
I have an old 705 NAD receiver I was thinking about using as a preamp if I buy this amp. Is there a way I can run my powered subwoofer will integrating these two components?
[ JAMES R.  Oct 29, 2017 ]
2 answers
Hi James, Not sure if your receiver will work with a powered sub. I have the amp you are considering paired with a NAD C 165BEE preamp. This preamp has the connection for a powered sub. I have a Definitive Technology Super Cube 2000 which is a great unit.
[ Chris  Oct 30, 2017 ]
I am not familiar with the NAD 705, but from what I could find on it, it appears to be a stereo receiver. I have a question for you, does the NAD 705 have a sub-woofer output channel? If it does, and you should be able to use its output to drive the sub-woofer. Does the NAD 705 have pre-amp outputs that can be used to drive the NAD C275BEE? This amp does not have a sub-woofer output.
[ ADRIAN  Oct 30, 2017 ]
Can i use the front outputs from my NAD T 758 to one set of posts to my A9's and the outputs from the NAD 275bee to the other set of posts on the same A9's?
[ brett  Aug 09, 2016 ]
1 answer
Sounds like you're describing a bi-amped connection. You'll need to use a preamp out from the receiver as a line level input to the 275BEE. You can achieve a bi-amped configuration with these components, BUT because they have different amplifiers and very likely with a different gain, you may end up with one section of the speaker increasing volume faster than the other. I think the only foolproof way to bi-amp is to use identical amps on both sets of posts.
[ JEFF P  Aug 10, 2016 ]

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