amp tech

Discussion in 'General Electronics Chat' started by wayne thrush, May 27, 2008.

  1. wayne thrush

    Thread Starter New Member

    May 27, 2008
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    ive got a MB Quart QAA1000. it is a mono amp, and i would like to make it stereo. i have split amp stage, but cannot split pre-amp. anyone know where i can go to find out what i need to do? or have any answers? thanks in advance.
     
  2. SgtWookie

    Expert

    Jul 17, 2007
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    Have you obtained or created a schematic of it?

    It would help a great deal if we could see it.
     
  3. wayne thrush

    Thread Starter New Member

    May 27, 2008
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    ill try to find one now. thanks for the reply
     
  4. wayne thrush

    Thread Starter New Member

    May 27, 2008
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    unable to find anything.
     
  5. Norfindel

    Active Member

    Mar 6, 2008
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    But how do you plan to make a mono amp stereo? I thought that the only way was to have 2 mono amps, one for each channel.
     
  6. SgtWookie

    Expert

    Jul 17, 2007
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    I'd trade it in for a pair of smaller amps.

    Either that, or buy another amp just like it.

    However, having 2,000 Watts for an automotive stereo is rather ludicrous. Even at 1,000 Watts, you couldn't get near the maximum output without permanent hearing damage.
     
  7. cumesoftware

    Senior Member

    Apr 27, 2007
    1,330
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    Why do you need 2000W? Is it to hear music while making a short stop? :D:D:D

    Really, power is not synonym of quality. In fact, it is the opposite. Normally, loudspeakers that work with that much power are PA speakers, that is, they are designed to produce very intense sound, but not with very much fidelity.

    Nevertheless, like SgtWookie said, two amps (one for each channel) should do the trick.

    Not even at 200W by my standards (unless it is a 78bD SPL speaker). But that's because I have a sensitive hearing. :D
     
    Last edited: May 27, 2008
  8. wayne thrush

    Thread Starter New Member

    May 27, 2008
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    first f all, if you make a 1000W mono amp stereo, you would techincally cut it in half. therefore, it would be two channels at 500W. i pretty much know what to do, i was just hoping for an easier solution.... thanks for your time.
     
  9. Gadget

    Distinguished Member

    Jan 10, 2006
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    No, That would only apply if the mono amp was a Bridged arangement..(a dual amp (stereo) with each half being driven in opposition ..one amp driving the +ve speaker terminal, the other driving the -ve) this arrangement actually give 4x the power of a single ended amp into the same speaker.

    What you seem to be describing however, is a Mono Single ended amp, which is NOT (and never will be) a stereo amp no matter how much you "Split" it, or wave a wand over it.

    A "Stereo" amp is 2 (two) Mono amps side by side in the same case.
     
  10. cumesoftware

    Senior Member

    Apr 27, 2007
    1,330
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    Stereo means two completely different channels. That is why you have to have two amps, one for each channel. If you drive two 500W sub-woofers (I presume), you still have a mono amp.

    In a bridged amp, you would still need tow individual amps, since one signal must be the inverse of the other. I advice you to have caution, since some amps are not prepared to be bridged.
     
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