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Pioneer SX-424

Discussion in 'Solid State' started by screenersam, Nov 7, 2010.

  1. screenersam

    screenersam aka Blind Sugar McGee

    Messages:
    2,962
    Location:
    East of the Mississippi
    saved a Pioneer SX-424 from the recycle demon. anyone wi a history on these?
    requires special speaker plug; do not like!
     

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  2. backinthelou

    backinthelou Well-Known Member

    Messages:
    668
    Location:
    St Louis, MO
    Lifted from another website:

    The SX-424 was introduced around 1972 and manu- factured through 1973 but these dates are not certain because Pioneer's own literature doesn't even list this model, which was probably just an oversight. It was Pioneer's most affordable receiver, listing for around $200. It's rated 15w per channel was deceptive having adequate power for driving practically any speakers. It had separate fuses for left and right channels and was wired for four channel sound; you could run four speakers simultaneously.
     
  3. vintageboy

    vintageboy Chicago HiFi Subscriber

    Messages:
    21,402
    Location:
    NW Chicago IL
    I have the same one and I really hate the speaker plugs on the back! It is rated 12W per channel! Low class receiver but sounds good and loud!

    I hope you enjoy it! Here is a pic!

    [​IMG]
     
  4. highping

    highping AK Subscriber Subscriber

    Messages:
    2,566
    Location:
    Just South of Seattle
    Pioneer still sells the speaker plugs for around 10 bucks. :)
     
  5. michaelhigh

    michaelhigh mind's eye music

    Messages:
    6,122
    Location:
    Lenzburg, IL
    Look at the pic above... Is that not a face you could love? This is a sleeper, a nice, solid low-power winner.
     
  6. 33&athird

    33&athird Turn on & Tune in

    Messages:
    5,334
    Location:
    Lexington, Kentucky
    Yep, I own the one-step above 525, and it's a low-watt charmer, good sound, some pretty good volume with efficent speakers, a nice tuner, etc. Good looking unit to, nice proportions:yes:

    And yeah, the infamous speaker plugs...
     
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  7. SoCal Sam

    SoCal Sam Lunatic Member

    Messages:
    18,894
    Spade connectors will work fine. Polarity is Horizontal = POS, Vertical = NEG.
     
  8. bob smog

    bob smog Creebling at the Turntables Subscriber

    Messages:
    1,662
    Location:
    Chicago
    I've owned a SX-434 since the late 1970's and it was always a decent performer. Don't know what the difference is between it and the 424 - it does have standard speaker binding posts (thankfully).
     
  9. screenersam

    screenersam aka Blind Sugar McGee

    Messages:
    2,962
    Location:
    East of the Mississippi
    thanx for all the feedback! I feel like I got a winner, esp for free
     
  10. Arkay

    Arkay Lunatic Member

    Messages:
    19,966
    Location:
    Hong Kong
    It's easy to DIY speaker plugs for those: Just take a regular US-style electrical plug, and remove the flat metal prong parts. They should fit right into the slots, although you may need to do a little filing (depending on the plug you started with). You can take some molding compound that sets up hard (epoxy will do, too) to fix them in the correct right-angle positions vis-a-vis each other, and prevent accidental shorting.
     
  11. par4golf

    par4golf Member

    Messages:
    86
    My first piece of gear in 1974, paid $129 for it at a Radio Shack. 12 wpc, and a pretty decent tuner and phono section for the money. Sounded pretty good driving a pair of Altec 891v's. And yes, the plugs were a pain in the ass, but once connected didn't give me any problems. My unit is still in use at my friend's cabin in Pennsylvania. :music:
     

     

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  12. screenersam

    screenersam aka Blind Sugar McGee

    Messages:
    2,962
    Location:
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    ordered a pair of plugs; hope to get set up this weekend
    will de-oxit all the connex too
     
  13. BOUXY

    BOUXY Super Member

    Messages:
    4,672
    Location:
    WPG,MB CANADA
    ?????????

    One step above would be the SX-434?...Yes/No??????????:scratch2:
     
  14. BOUXY

    BOUXY Super Member

    Messages:
    4,672
    Location:
    WPG,MB CANADA
    Differences:

    SX-424 did not have a left/right balance knob...SX-434 did.Push ins were black on 424 and silver on 434.Both had same power 12 watts per channel.Both models had on front right Panel a mike input and control yet some models of each didn't,don't know why?SX-434 had regular speaker connectors as opposed to the 424.......:):thmbsp:
     
  15. dshoaf

    dshoaf That high voltage buzz Subscriber

    Messages:
    10,184
    Location:
    RIP 1954-2018
    Nope. Next generation of the model roll. The step up in both rolls of the model line was the SX-525/535. The SX-4x4 was the bottom of the line brought into the US back then.

    There were other lower-end receivers in the Pioneer product line in the US but they were branded Craig by Pioneer and included a line up of 8-track/cassette players for auto use plus compact stereo/All-in-One stereo systems favored by college students in small dorm rooms.

    Cheers,

    David
     
  16. larryderouin

    larryderouin Turn it UP, POP? PLLUUEEEZZZZZEE Subscriber

    Messages:
    21,903
    Location:
    Glen Burnie Md.
    The only differences I 've seen on the 434 vs 424 were

    1.) Screw downs for 434, funky plugs for the 424.
    2.) BALANCE Control 434, Dual Volume control 424
    3.) Different knobs.
    4.) Internal differences on schematic.

    Larry
     

     

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  17. BOUXY

    BOUXY Super Member

    Messages:
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    Ty:

    Thanks I needed that!..lol...no really I should have seen that but just didn't,thanks for reminding me...:):thmbsp:
     
  18. dshoaf

    dshoaf That high voltage buzz Subscriber

    Messages:
    10,184
    Location:
    RIP 1954-2018
    Larry, those are the features. There were other reasons for product lines to roll back then: increased prices.

    Recall that there was the first big oil embargo that was happening about the same time. US consumers got their first shock of rising gas prices and the cost of shipping anything went through the roof. Importers quickly started rolling the product lines as one way to keep their margins up.

    It is amazing that anyone bought stereo gear back then!

    Cheers,

    David
     
  19. larryderouin

    larryderouin Turn it UP, POP? PLLUUEEEZZZZZEE Subscriber

    Messages:
    21,903
    Location:
    Glen Burnie Md.
    But when the Military ships it home for you from the Exch, or during a PCS there is a lot you can move. I had a 2,000# limit for a PCS move. And I was single!
     
  20. dshoaf

    dshoaf That high voltage buzz Subscriber

    Messages:
    10,184
    Location:
    RIP 1954-2018
    Well, that explains why I saw a lot of big overseas receivers and speakers coming into my shop back in the 70s. I always wondered how those bachelors could afford to ship all their gear home.

    Cheers,

    David
     

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