Kenwood Model 600
Stereo Integrated Amplifier (1977-79)
Power output: 130 watts per channel into 8Ω (stereo)
Frequency response: 5Hz to 50kHz
Total harmonic distortion: 0.08%
Damping factor: 50
Input sensitivity: 2.5mV (MM), 150mV (line)
Signal to noise ratio: 76dB (MM), 90dB (line)
Output: 150mV (line), 30mV (DIN)
Speaker load impedance: 4Ω to 16Ω
Dimensions: 440 x 154 x 388mm
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Reviewed Jun 11th, 2016 by Vincentz
Built like a tank! Sounds like a tube amp with a solid state bottom end is probably the best way I can describe this amp.
Beautiful phono section that is dead quiet.
Reviewed May 19th, 2015 by vlavalle
This was the best integrated amp ever made, at least under $3,000! Not only does it have a great power amp, it also has MANY features hardly seen on pre-amps back in its day. While some of these features are not so useful today with today's electronic devices, I have used it in my very high end home theater/audio system for its preamp features.
One of its very nice preamp features is the ability to support two different tape devices. It allows you to copy from Tape A-B and from B-A, and also be able to switch to the source when it is not in the tape copy mode. Back in the day when recording to tape was the standard, switching back & forth from source to tape is absolutely necessary to compare the original to the recording - and of course, you had to have a 3 headed tape deck that would allow you to hear what it is recording as well.
It also has two phono inputs, with adjustable impedance, two aux (high level) inputs, and a tuner input. So, with the dual tape inputs and outputs, it has formidable inputs for the equipment of that day.
I use its vast inputs for my reel-reel (Tandberg 20A) and cassette tape desks, the phone input, and the tuner one as well. I also use one of the Aux inputs for the audio from my computer. The Model 600 also has Pre-out and Pre-in, and this is how it is connected to my modern day preamp (Integra DHC 80.2).
I use to use it as a full integrated amp with Dahlquist DQ-10 for almost 20 years, but when I upgraded these speakers (it was hard to do without spending lots of $$$) to Legacy Focus speakers, I switched to power amps for all my speakers (7.1 system), so the Kenwood Model 600 power amp side was no longer needed. I was able to drive the inefficient Dahlquists to laud levels, so the power amp was substantial. However, the Dahlquists were weak in the lower end range, so the damping factor of only 50 was not such an issue then. But when switching to the Focus speakers, that have an OUTSTANDING low end, I bi-amp the Focus's with a Kenwood M2A power amp (220 RMS w/ch) with a damping factor of 1,000!
So, while the Kenwood Model 600 is ancient today (2015) and it is only a stereo amp, it is still useful, and would make anyone happy who just wants an audio only system.