View Poll Results: Would you be intersted in a USB amp as described?

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  • No, not at all, you can put it where I think!

    3 11.54%
  • Only if it was really cheap, say $50

    10 38.46%
  • Only if it was cheap, about $100

    5 19.23%
  • This is the thing I was born for, send me one now!

    8 30.77%
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Thread: Small and simple USB audio amp anyone?

  1. #41
    cheap custom title JC-S60's Avatar
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    Quote Originally Posted by pokki View Post
    If you're happy to desolder the CM chip or build uppon an existing solution, I can help you source a complete CM106 USB soundcard for sub $25 USD.
    We are asking our assembly company if they dan set up a robot to desolder the chip, maybe there is some light at the end of the tunnel here...thanks!

    Joachim

  2. #42
    Variable Bitrate
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    Fom my limited knowledge of PCB boards the CM chip appears to be surface mounted not through hole - just in case that effects your abilities to de-solder them.

    I'll post a photo of my sample board tomorrow.

  3. #43
    Variable Bitrate
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  4. #44
    Variable Bitrate Nerd2's Avatar
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    Just another +1 to say I think this is a great idea. Head-unit replacement is what it's all about, forget big amps and posh optical soundcards - most people will be happy with something the level of their HU (or slightly better). Great idea.

  5. #45
    Constant Bitrate peijffertje's Avatar
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    Same here. I hope you'll be getting this on the market really soon

  6. #46
    cheap custom title JC-S60's Avatar
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    [QUOTE=pokki;1143238]...[QUOTE]

    Thanks! We'll look into it...

    Joachim

  7. #47
    One Sharp Cheddar ThunderStick's Avatar
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    Im all in for this idea. Since mitch's developement of his HD radio cable, this would incline me to go with out a head unit. Something I wanted to do for years. The only thing stopping me before was the cost of the amp, wiring and accessories needed for the amp. And of course a good radio tuner.
    With a "USB amp" this would help to get me over the final hurdle.
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  8. #48
    cheap custom title JC-S60's Avatar
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    Quote Originally Posted by ThunderStick View Post
    Im all in for this idea. Since mitch's developement of his HD radio cable, this would incline me to go with out a head unit. Something I wanted to do for years. The only thing stopping me before was the cost of the amp, wiring and accessories needed for the amp. And of course a good radio tuner.
    With a "USB amp" this would help to get me over the final hurdle.
    Thanks for your interest!

    Tomorrow I'm taking the first production PCB to the housing guys...another 3 weeks I reckon...

    Joachim

  9. #49
    cheap custom title JC-S60's Avatar
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    Thumbs up

    Preview of the PCB - ATTENTION: Optical IN/OUT will not be on the final product, only available as an option for large orders!

    Connections:

    - Stereo line-input (goes to the PC as recording channel - ideal for AM/FM, Sirius, DAB, XM... modules with analog output so you can use the equalizer and timeshifting/recording of the PC)
    - 2x Stereo line-output (front and rear - fader on-board with trimpots)
    - USB type B connector to PC (Audio and control)
    - Molex with
    - 4x speaker output - 4x40w (front and rear - fader on-board with trimpots)
    - Remote power input (Acc wire)
    - 12v power input

    Optional: standard ISO wiring harnass for power, remote and speakers: really plug and play!

    Joachim
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  10. #50
    Variable Bitrate
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    Good work, nice simple layout.

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