Connect with us

STK 361 weaker IC as power amp than LA 4440 STK 361, Amplifier

Discussion in 'Electronic Design' started by cozz in or out, Sep 27, 2007.

Scroll to continue with content
  1. Hi ,
    i dreamt of a good poer amp for long and found circuit that tells
    360W amp
    had input for all like tuner ,cd etc

    I hv assembled it .however after running the power amp with some
    i was surprized to see that the AMP is very weak ..
    it needed 15a-0-15a supply ..that cosed 20% more

    whole amp kit costed 40% more ...finally I to discover that it is v
    as compared to kits with 4440 ICs ..

    Is STK 361 weaker IC as power amp than LA 4440 ,please coment ..
  2. Guest

    do you have a power supply that can provide at least 720 W? Class AB
    amplifiers are only 50% efficient or so, so you'll need to provide
    double the juice it needs from your power supply.
  3. thanks ,
    360 w PMPO that was the title of the circuit published in
    'Electronics for you ' magazine ...STK 361 is some 25 or 50w rms
    chip i think ..
    Is the power supply that might be the cause ??
    the Amp was running fine ...amplifying but But very poor Output.....

    (i hope a power supply *stronger* than normal PSs of 12-0-12 3 Amp LA
    LA4440 based amps should be sufficient ])
  4. Eeyore

    Eeyore Guest

    Neither are even remotely anywhere near 360W ! You should be able to see that
    from the power supply voltage ! - it's 19W

    The magazine is LYING.

  5. that 360 PMPO wattage is a marketig term i know .... u can see SONY
    6000w music system being sold in nearby show room ..which takes 40-80w
    power while running ... :)

    but the query still remains unanswered ... why is STK 361 is giving
    weak output ..than LA 4440 [i know LA4440 gives sufficient amount of
    output for normal home use ..i wanted a more powerful AMP ...and ended
    up with STK 361]..

    i have heard that STK 361 is used with SONODYNE soundsystems....must
    be having good power inside ....
  6. Guest

    I think you should try on KIA6216H ICs, May be it gives you better
    result .

Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day