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power amplifier board

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power amplifier board Customers Reviews

  • Very small class D amplifier

    posted by lasermanathome

    Small PCB with high output and almost no loss of energy, so it does not spoil much heat and therefor the cooling is very tiny.Nice build quality , have to test how it sound yet but experience about the concept tells me that a good class D amps sounds very good.
    2X40 Watts pure rms power is, when used high efficient PA qualityspeakers quite a lot for a livingroom.When used with balanced XLR the double output in brigemode is achievable, enough to feed a subwoofersystem.usetthe max input 2x23 VAC using a ringkerntrafo with low magnetic surroundfield and low secondair resistance of 180VA or better.
    Nice and cheap class D amp, in the follow up I 'll tell how it sounds.
  • Superb Micro amplifier

    posted by skinnybloke

    This is the most aamassing amplifier i have purchased so far from DX !Its not the most powerful, but its so Tiny ! The output you can achive from this far exceeds expectation ! The sound quality is fantastic, low and high level, and a very low noise floor for a digital amp that has no output filter, i will be purchasing more !
    This will be sooo good for Rasberry pi user, how cool would a tiny 5 volt sub+sat system be ?
    If you need a tiny high performance amp with mini subwoofer, look no further :DI love this little amp bored x
  • Nice build quality

    posted by rogeriobrazilsp

    This is a very cheap, but well made headphone amplifier. Works fine and appears to have been contructed with good quality parts. You can use it with a 12v adapter or 12v battery. Now I'm using it with a 3.7v battery with a voltage converter.
    none
    This is an amplifier to be used with headphones, but I'll not use it, unfortunatelly. I have a cmoy amplifier and works bertter.
  • Good if you know how to use it.

    posted by BobEast

    Very small footprint for mounting in a project. Easy to wire, and works great off an Arduino power pin. When wired to a 4ohm speaker, amplifies the signal nice and loud. Great price, other places sell this unit for $15 or more.
    a small wiring diagram would be useful. There are some pictures online of how it can be wired.
    Good for making your audio loud, but requires an external volume control.
  • simple but good sound quality

    posted by CHANDRA66

    - works from 7V - 12V DC- starts with the last played song- good sound with high quality speakers- reads many different USB-sticks- combined on-off/volume switch/poti - line-in connector on board
    Nice to combine with bluetooth-audio module connected to the line-in.I made a wodden case with Visatone speakers and the sound is really awesome!
    It's really worth the money, anyway you need additional good speakers, a power supply and a heat sink.

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