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spec 2

  1. Stereoboy70

    Pioneer Spec 2 Power supply Board AWR-093

    Hello all. Does anyone have a lead or any info as to where I could locate an AWR-093 Power supply board for a Spec 2 Amp? I got this unit in for a repair and I was told it kept blowing fuses. On further inspection I found that the power supply board had a huge hole burned through it under one...
  2. C

    Pioneer Spec 2 Protection issue

    Hi all, I have been going thru this unit and narrowed my issue down to the amplifier board. I’m kinda lost at this point. Essentially the unit will work, play fine, and if you shut it down and turn it back on within a minute, it will go into protection mode. This only happens in one channel...
  3. D

    Spec-2 Troubleshooting Output Transistors

    Looking for advice on determining if the output transistors are leading to a channel appearing to be out. What I've determined is that I have the correct voltage at 15,16,21,22, but do not see any voltage at the output legs of the transistors. I have taken each output transistor out and did a...
  4. N

    Pioneer Spec 2 Common Ground

    Hello AKers. Can someone tell me if a Spec 2 is Common Ground? Using my 9800 as a Pre and the Spec 2 as the main. Needles move but no sound. Polk SRS with interconnect cable. 9800 has no problems. The Spec 2 just returned from a major service.
  5. M

    looking for Spec-2 help

    The other day I finished a restoration of a Spec 2, I posted here how happy I was with it. Now unfortunately the same issue I had with the left channel is popping up again. Here is what happens: -When listening, usually at low volume, the left channel sometimes get really low volume with high...
  6. L

    My expectations Bose 901 and setup

    I’ve had a pair of 901s for many years powered by my Pioneer sx950. I have the equalizer connected correct via manual instructions and it sounds decent. But like they say dissatisfied with lows and highs. I must’ve been drinking when I decided to buy a Pioneer 3 way crossover just...
  7. JoshuaZ

    4 ohm and 8 ohm Speakers in the same system

    So, weird question that I couldn't find an answer for. I have a Pioneer Spec 1 and 2 system that I'm going to be setting up shortly. I have some Boston A400 speakers that I plan on using, but I'd also like to hook up some Boston A200 speakers I also have around. The A400 are 4 ohm and the A200...
    • JoshuaZ
    • Thread
    • a200 a400 pioneer spec 1 spec 2 specakers sx-1050
    • Replies: 10
    • Forum: Solid State
  8. C

    SPEC2 left channel meeter goes crazy.

    Hello everyone, I have a SPEC2 that seems to work OK, but it started to show the left channel meter going up and down while still providing audio on both channels. Does anyone know what may be wrong with it?
  9. A

    Short and sweet. STV-4H diode request

    hello. I’m sorry for dual posting my introduction and diode request a week or so ago. I’m not trying to cause any extra work on my behalf. I’m sorrry. I did get a whole lot more of a welcome than I ever expected. Thank you guys for that. Are there any 4H diodes for sale anymore? Im thinking...
    • Ashe
    • Thread
    • diode diodes pioneer restore spec spec 2 stv-4h
    • Replies: 3
    • Forum: Pioneer Audio
  10. xXColdShotXx

    Pioneer Spec 2 Issue

    I hooked the spec 2 up a while back and let it play for around 10 minutes, then all the sudden I hear a small pop and smell something get hot, then I noticed the right meter was almost on 500 and the protection light was on. I had a yamaha cx-600/u pre-amp hooked up to it and it was playing just...
    • xXColdShotXx
    • Thread
    • pioneer pioneer amp pioneer amplifier pioneer spec 2 pioneer spec 2 amp pioneer spec 2 amplifier pioneer spec amp pioneer spec amplifier spec 2
    • Replies: 65
    • Forum: Pioneer Audio
  11. lakegville

    This one may be tuff.....Spec 1 & 2 advise?

    My goal with each system that i bring in is to outperform the last one. Currently the bar is set fairly high with the current system so i started thinking out of the box a little I just bought two Pioneer Spec 2's and a Spec 1. They have not arrived yet so i have not looked at functions but what...
  12. M

    Spec 2 bias (again??)

    Greetings! I think I've read all the relevant posts and still have a question. I am working on a Spec 2 that someone else has worked on. I upgraded all the TO-220's, electrolytics, and bias relays on the amp channels. I had an open R61 (thermal sense supply) and protection lamp on the meter...
  13. lakegville

    2 Pioneer Spec 2

    OK I am acquiring vintage SS amps when and where I can. There is a person not too far away who has 2 Pioneer Spec 2's and 2 Pioneer Spec 4's he wanted to pass along. I told him I would take both the Spec 2's. I am sure there are many that are very familiar with the Spec 2. I am very green when...
  14. B

    Pioneer Spec 2 Recap Project

    My Spec 2 started developing some buzzing so I removed it from the rack and would like to perform a recap on it. Does anyone have a BOM for either mouser or digikey for cap replacements? I did a search but nothing came up. Any help is greatly appreciated.
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