Pioneer that has pre-out

Discussion in 'Pioneer Audio' started by patate91, Jul 5, 2018.

  1. patate91

    patate91 Well-Known Member

    Messages:
    637
    Location:
    Chicoutimi, Qc, Canada
    I'm looking for a pionneer that has a pre-out, amp-in.

    I already own a SA-9900 and I want to test an active crossover (miniDSP), I need another amp to feed a pair of sensitive compression driver, so low watt amp is needed.

    Why pioneer? My system is all vintage pioneer, prices are often decent for older amp and easier to find.
     
    Last edited: Jul 10, 2018

     

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  2. merlynski

    merlynski Curmudgeon Electronicist Subscriber

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    patate91, I suggest you post this in the Bartertown Equipment forum if this is an offer to buy something. You can look for items you want there as well. You will need to become a Subscriber member of AK to access those forums.
    You could use a Tape Monitor loop input/output to function as a pre out/power in for testing purposes. :idea:
     
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  3. KingBubba

    KingBubba "Too Much Stuff"

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    I have three Pioneer units that all have pre-outs. The SX-1250, SX-1280 and the SA-9500II.
     
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  4. merlynski

    merlynski Curmudgeon Electronicist Subscriber

    Messages:
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    Location:
    High Plains, Eastern Colorado
    My SX-1050 has pre-outs.
     
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  5. drumbum

    drumbum Super Member

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    1,116
    My sx-890 will soon have preouts;)
     
  6. audiojones

    audiojones Jonesin' for audio Subscriber

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    If you don’t want to spend a huge amount of money the SX-626 has pre-out / main-in jacks and can usually be found for a lot less than the big ones mentioned above. The tape monitor loop is going to be a fixed line level output so it may not work for what you are doing (assuming you need a variable level output).
     
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  7. patate91

    patate91 Well-Known Member

    Messages:
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    Location:
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    I don't think I need the tape monitor loop to use the power amp in an active setup ?

    I plan to use the sa-9900 pre-out -> miniDSP input -> minidsp output to -> sa-9900 power amp and and power section of another amp -> 2 way speakers.
     
    Last edited: Jul 9, 2018
  8. audiojones

    audiojones Jonesin' for audio Subscriber

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    Actually for that kind of setup you don't really need separable pre and power jacks on the second amp, you might be better off using the standard line level input jacks of a smaller integrated amp. You could send the signal that comes from the active crossover to the line input of the second smaller integrated amp and use the smaller amps volume control to "fine tune" the level sent out to the compression drivers. The SA-9900 would still be the master volume control since the preamp out from it is feeding the crossover. If you leave the volume control all the way up on the smaller amp you will have the same volume level that the power amp input jack would give you plus you now have the option to "trim it down" a bit if it's too high.

    If you get a small integrated amp like the SA-6500II or SA-6800II it will match your current amp fairly well aesthetically too and they're fairly inexpensive and easy to find. A small integrated like that should be more than enough power for the drivers I would think, try your SA-6800 and see how it does. Just a thought FWIW.
     
    Last edited: Jul 9, 2018
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  9. patate91

    patate91 Well-Known Member

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    Location:
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    Thanks a lot! I do have an sa-6800, my goal is to test if I like an active setup, so I really like tbe idea.

    So if I understand correctly :

    Sa-9900 pre-out -> miniDSP input -> minidsp output to -> sa-9900 power amp and SA-6800 tape loop back input -> 2 way speakers.
     
  10. audiojones

    audiojones Jonesin' for audio Subscriber

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    Yep, either the tape monitor loop or any line level input (aux or tuner but not phono). Try it and see how she goes.
    Sorry about that, I tried to edit my previous post for clarification but my computer locked up on me!
     
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  11. patate91

    patate91 Well-Known Member

    Messages:
    637
    Location:
    Chicoutimi, Qc, Canada

    If I look for specs :

    Sa-9900 Pre out: 2V/1kohm
    SA-6800 Line/Tape, etc. 150mV/50kohm

    Will I send too much voltage? I don't want to break something
     

     

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  12. audiojones

    audiojones Jonesin' for audio Subscriber

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    It's important to keep all of the tone controls and loudness contour set flat on the smaller amp. Start with the volume control on the smaller amp at 1/4 and work up from there. I've used preamp outs with line level inputs in the past with no issues but if you start to hear distortion or anything like that then stop. Should be OK though, I think 2volts is a maximum figure with everything wide open.
     
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  13. audiojones

    audiojones Jonesin' for audio Subscriber

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    Another option (and perhaps better as far as keeping the signal path clean and uncluttered) is to just get a good basic power amp like an Adcom GFA-535 and use that to power the compression drivers from the crossover signal. You could tuck it behind everything so it’s out of sight and it’ll definitely do the job.
     
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  14. patate91

    patate91 Well-Known Member

    Messages:
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    Location:
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    Exactly the kind of amplifer I'm looking for : good specs and low price! Thanks
     
  15. patate91

    patate91 Well-Known Member

    Messages:
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    Location:
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    I just scored a luxman r-114 for 60$. It will get the job done for my tests
     
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