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I don't have any bad reviews yet.

May we ask how much this CAMBRIDGE AUDIO AZUR 640A INTEGRATED AMPLIFIERS worth? Those quality subwoofer is more expensive for sure. montgomery landscaping contractors

I will observe it first

This amp has a clarity way way above its price bracket . Cant wait to get a second one and bridge the two .as it is i have my Cyrus 6xp d as a pre amp going through the nad and the sound is so effortless and real . Just a great amp. Speakers B&W 603 s2 .

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This looks very classy and it makes the sound really clean and smooth. Steel Siding Services

Power, bridging, soft clipping, and input switches could be better.

Rich sound, laid back yet accurate presentation of music. Very clean treble, almost silvery, and defined bass. Palpable midrange and tons of power. Impedence Sensing Circuitry allows economic use of power in relation to speaker loads.

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Purchased a used C270 to bridge to mono to match my existing C270. What a masterpiece and a bargain. I can't believe the difference bridging this amp makes to the overall sound. The NAD goal of bringing the best sound to the masses without the unnecessary bells and whistles stands out with this unit. I am looking into recapping these masterpieces and having them for another 15 to 20 years. Vintage Hi-fi lives and thrives! Can't wait to try them with an upgraded DAC and FLAC digital files. After the recap I would like to compare them with Bryston amps to see if the price and 20 warranty is worth the thousands of dollars extra. Would love to compare these to the NAD Master series amps as well.

The only weakness I can note is some of the build quality. Power cord could be a better quality. Power, bridging, soft clipping, and input switches could be better.

I must to say that I feel extremely satisfied with the NAD C270, what a masterpiece!

I bought this unit on ebay 150£ and my first impressions weren't very positive. As I had several nad previous amplifiers in the past I replaced all electrolytic capacitors by using ELNA SILMIC II ( The best capacitor the money can buy)) and 4 x 10000 uf 80v Mundorf
( widely used in HI END amps) for the Power supply.

In the PCB there is room for a third capacitor for the PSU as the PCB is ready for that ,so finally I added a couple of inexpensives but very good cornell dubilier SLPX 4700 uf 80v ( in fact all capacitors in the pcb were cornell dubilier as well and probably as a generic brand nad capacitors for the PSU probably were CD as well.

Only I can describe the sound of the c270 as a true hi end device, powerful, clean, fast and extremely musical and of course non fatiguing I got what I was looking for with an inexpensive investment 150 for the nad + 150 £ for recapping the amp and I can't be more happy...

I do think that the c270 is better than the 272 because the 272 is 150 w RMS rated and the c270 is 120 w but they are sharing the same psu capacitor values...the transformer looks better in the c270 as well sometimes in nad products the old ones are better than the new ones,,,,,, nad 3020,,,,,,,

Extremely happy with this amp, the new capacitors restores the dynamics offering a very detailed and pleasant sound . the soundstage is really huge, impressive, you feel into the soundstage the musicians are playing in front you ... the bass is powerfurful as expected in a nad design with a very coherent timing , the mids simply geourgeous, and very clean highs as well , extremely musical and warm sounding amplifier and very fast response to the trasients. drives my sonus faber venere in an impecable way. I love this amp!

What a masterpiece !

I have loved sound and the likes of Adcom, Counterpoint, Carver, Audio Research, Acurus, Sim Audio, Emotiva and Cary for close to 30 yrs now. Recently I had to part with my Cary due to financial difficulties so I purchased one of these after reading lots of reviews and I must say "WOW" this amp is a stone cold killer of a bargain! Now comparing It to the likes of the Cary or Sim Audio, Audio Research it unfair simply because they are much better but at 5 X 10 times the price or more. With that said this amp would and does hold it's own in every way! The reserve power and depth of the soundstage is simply amazing at this price point and honestly you will have to spend 5 X the price to get better. Love it and have purchased the 2100 for my center channel and bridged it. My Cary was 200 X 5 compared to 120 x 2 of the c270 and I have had to adjust the decibel level down by 2 with the NAD's compared to the Cary.. Highly recommended!!

I use 4 of these for my bluray 7.1 system. It sounds amazing this is clearly one of the best amps ever made for the price tag. Nad really got it right even with the new c7320 and the c272 the c270 and c370 still sound better. There is so much power and clarity in these amps. Is there anybody else out there who has used it in a 4 amp 7.1 surround system. I would love to hear your views

Has 2 pairs of speaker post and adjustable gain to match any preamp on the planet.Provides a nice warm sound.Has no problem driving two pairs of speakers that are listed at 8 ohms.I would not advise doing this with 4 or 6 ohms though.

I wont fault NAD for this but once the smaller caps start aging the amp has to work harder and forces it to get warmer temp wise.This applies to any piece of older equipment due to age.

I honestly cant find any faults at all for an amp in the $500-$600 price range.

Update: Now owning this amp 5 years later from my last review and still going strong.It was running a little warm so I changed out 95% of the tired smaller capacitors from 1uf to 2200uf.This restored the dynamics and lowered the overall temp of the amp.It sounds better than new and is driving two pairs of modified Polk bookshelfs.

Very warm sound.It retains the capacity to drive two pairs of speakers dropping the impedance down below 4 ohms.I'm impressed by this being this amp is pure mid fi.Not to mention it's built in China ! It still provides clean highs,warm midrange,and surprising bass with four 10,000uf 80volt caps for the main power supply.

Personally,I feel anyone would be happy buying this amp used for a modest system.I can say it sounded better than an equivalent Adcom I use to own

I'm still a happy owner and it does not leave me wanting more.
***IF ANYONE COULD PROVIDE A SERVICE MANUAL I SURE WOULD BE GRATEFUL TO ADJUST DC OFFSET***