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Just picked this up, for free, in very dirty condition. Powers up, but I'm going to give it a good cleaning and inspection before I hook it up to any speakers.
Can anyone tell me anything about this unit?
This was the next-to-the-top of the line receiver in the line up with the 6046 being the top of the line. This was pretty much the first full line offered directly be Sony's then-new distribution channel after they started operating beside their original distributor, Superscope.
This model line was then supersceded rather quickly with the 7045/55/65 product line, which switched to brushed aluminum front panels from the more-dark-faced 60xx series.
Both of these Sony lines were well-engineered and fully functional as Sony has come to be know for. Remember that the now-famous Trinitron TVs were being introduced at the same time, which really put Sony on the consumer map in those days.
As for sonics, these receivers can hold their own with any of the Kenwoods, Marantzs of the same vintage but Sony just didn't go into the more snazzy cosmetics from their competitors. With conservative specs and less eye-catching looks, they are often overlooked today. For that reason, these receivers are good value for a collector, IMHO.
BTW, I always liked working on Sony gear as it was designed for servicability - unlike the KLH/AR electronics of the day.
It was one rung below the STR-6046A, which was my first receiver. Actually, I have an old Sony ad from, of all places, a National Lampoon....."Our 6036A is conservatively rated at 15 + 15 W RMS. Its 1.5 dB capture ratio is a clue to the tuner's impressive performance."
THD for the 6046A was 0.8% at 20 watts, so I guess the 6036's performance would be similar (the ad didn't state THD). The ad copy states that output is direct coupled, no output capacitors.
Sony was right about conservative ratings. I once took my 6046A to an amplifier clinic (sponsored by Phase Linear I think) and they found something like 25 watts/channel at 0.1% THD, 20 to 20KHz.
The 6046A did not last all that long, though, before developing problems. I still have it, but I don't know enough to diagnose the problem (it always made a scratching noise when it was turned off, and eventually gave very low output, while making the woofer cones slowly pump back and forth.)
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