because of that, I decided to research this piece on AK(had never taken it seriously until the last 2 weeks, didn't even use it for 20+ years). Nothing but good comments, mostly in threads about "sleepers". So in the last few days, I have learned two new and fun terms in this hobby. BPC (black plastic crap in case you're wondering) and "sleeper". The amp is the Pioneer SA-1060 from 1985. I remember when my family purchased this in 1985 in a rack system along with the corresponding pioneer BPC other stuff (TX-960 tuner, corresponding BPC EQ, dual cassette and phono and of course the mid 80s pioneer 3 ways with 12" woofer - $600 for everything if memory serves. At any rate I first biamped (with any amps) just a couple weeks ago with this pioneer powering the tweeters of my B&W CDM1SE bookshelf. First time biamping and WOW!!! Of course, no way was this BPC going to stay in my system, after all it was BPC and BPC couldn't sound good. No way. Long story short, I just bought a Sony TA-N55ES, originally to power a kicker sub I have (didn't cut it), so I ended up putting the 55ES on tweeter duty. Did not sound as good as the Pioneer. In the last week, I have done extensive comparisons for tweeter duty bw the Pioneer SA-1060, Sony TA-N55ES, and Luxman M120A. In all cases a Forte Model 3 was powering woofers. Could the pioneer realy sound better than Sony ES and Luxman? Well, YES!!!! At least to my ears!!! So then I was like maybe the fact that its going thru tone controls and "muddying the sound" is making it sound "better" to my ears., maybe my ears aren't so good, etc,etc? I decided to search this amp on AK and couldn't find a single bad thing written about it! It kept appearing in threads about "sleepers". I am quite happy and it now is a proud part of my system, powering the tweeters. I have tried it powering the woofers of the B&W and couldn't tell much of a difference between it, the sony, and the luxman. But on the tweeters, it clearly sounds the best to my ears. Now.....I'm not sure if this has anything to do with why it sounds better, but I did utilize the subsonic filter on the pioneer as well as turn the bass all the way down(and I prefer the treble at +2 out of 10). At any rate, I am pretty excited that the BPC my family has owned since 85 just so happens to be a "sleeper". Here are some comments I pulled from AK on it. Not sure what they all mean yet (if someone could explain, that would be cool). I am quite the happy camper bc of this BPC!!! Various comments I found on AK about this unit (did not find a negative comment on it). "I have a mid 80's Pioneer SA-1060 amp thats a real sleeper. Non-Switching 100 WPC. Has the same heatsink as the SA-x800 amps and can be bought for real cheap. PIONEER INT, SA-1060 BK Manufacture Years: 1986 - 1986 Power: 100 Seems pretty hefty, all discrete outputs, 4 per channel, one 10000uf cap and one 8200uf cap per side. Claims its a "non switching circuit". Ran it for a while and it sounds good through headphones (seems to get fairly warm when running, possibly biased into Class A through lower power?) Just found this integrated amplifier. Non switching design. Unit doesn't look like much but has a pair of 7800 mfd 50 volt caps and a pair of 10,000 uf 80 volt caps 4 output transistors per channel. The output devices are all original and each channel has 2 different complimentary pairs. I assume this is one of those low voltage high voltage rail designs. The thing will produce 31 volt 20 hz sine waves all day into my 8 ohm loads. roughly 120 wpc both ch driven. I would guess it has far more dynamic power. anyone know the specs or anything about it ? I have one of these too, bought it when I spotted those 10000uf caps and 4 transistors per channel from the top. Orion lists the following... PIONEER INT, SA-1060 BK Manufacture Years: 1986 - 1986 Power: 100 MSRP: $350.00 Seemed to sound alright in my estimation, and its not bad for an 80s unit in terms of build quality. Not bad power output if it can do 120wpc exceeds its rating by a fair margin. I recently acquired one of these. It's heavy, has an output protection relay, and sounds good. 100 wpc. The SA-1060 is not bad either for what it sells for. Usually under $100." One of the comments mentions something about running in Class A mode at at lower power. Any validity to this? Is it possible since I have it on tweeter duty only, it is running in Class A all the time? Thanks!