Review: CM Labs 914 Amplifier


Category: Amplifiers

Long before Levinson,Krell,Threshold,and others there was CM Labs of Danbury,CT. This little high end company produced some of the most musical solid state power amps.The build quality is robust,and is a total mil-spec amp. The 914 is one of the first,if not the first of the high speed power amps. The power output is 125 Watts RMS into 8 ohms,with less than 0.1 percent THD,at any freqency from 20 to 20,000 Hz. 175 watts RMS into 4 ohm. IM Distortin less than o.1 percent up to rated power.Frequency response +- 0.1 dB from 20 to 20,000 Hz at full power.Damping factor better than 500 at 8 ohms!!Circuitry is fully differential,full complementary common-emitter output.Is built to MIL spec A8625C,Type 2.More important than all the above impressive specs,is the sound quality. This is without doubt one of the finest and most musical power amps I have owned. Clearly in the same league as Threshold,Levinson,and others in the high end spectrum.Seldom seen in for sale or auction. People that have then just dont get rid of them--Thats how good they really are in the real world of high end audio. But if you ever get a chance to acquire one,Grab it fast

Associated gear
Acoustat Speakers,HK T-60 TT,Threshold Preamp

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Many thanks to pvanrook for posting pic of the CM Labs 920 power amp. Appears to be a higher powered version of the 914C power amp,front panel almost the same. These were used mostly for commercial application such as studios and concert hall application, although work extremely well in a home system.

Many thanks
Does anyone have any schematics for CM labs amplifiers? or for the CM labs preamp? I have the 35D which needs a schematic, and I have the 915 which needs a schematic, and th epreamp too which will need a schemo or a tech. Thanks in advance ! Ed
Hello: I have a schematic for the CM Labs 911 stereo amp. I will email it to you if you want it. I have a CM 911 and I have been using a pair of CM lab amps Model 80MRM for the past 29 years. I believe that the CM Lab amps are some of the best transistor amps that were ever produced. They were expensive when new but I would put them up to any other amp such as Mac Fisher etc. Dan
YES! I would love to get a schematic for it, btw, do you know of anyone reputable that works on CM labs gear? I also have a preamp, and a CM Labs 915, which strangely has an address on it for Alabama (?) . Feel free to email directly at ecoleman@whidbey.net . thanks! Ed
I would also like a copy of the schematic for the CM Labs 911 amp, please. Would you have any other info on it; like how many watts per channel? (maybe an owner's manual?). I totally agree with you on the sound. I was amazed how good it sounds when I first listen to it. Thank you in advance for the info. Tony(cornflakeman@gmail.com)