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Thread: Interested in a USB Audio Amplifier?

  1. #1
    Fusion Brain Creator 2k1Toaster's Avatar
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    Interested in a USB Audio Amplifier?

    Additional Information at End of Post

    Original Post:
    Well thanks to justchat_1, I have been hard at work on a new project. Now that I have concluded it is feasible, I want to know if it is something you guys (and gals) would be interested in.

    What I am working on is a 4.1 (4 speakers and 1 sub, 5 channels) USB sound card and amplifier. So plug it into your PC via USB and you get 5 speaker level connection to connect directly to your car's speakers. Sound quality will be between 16bit and 24bit, so high def using high quality components. Should rival most standalones out there to begin with.

    No startup thump because it is USB audio and will be somewhat programmable.

    As for output power it would be in the low to mid range but at high quality. Meaning it will be extremely loud for mostly everyone if needed as well as keeping a normal/reasonable volume with great sound. Obviously you audiophiles will never go for anything where you can't control it, but the design thus far is a high quality Class D amplifier with between 88% and 94% efficiency and a SNR greater than 100dB.

    So, what do you think? Would you be interested in something like this? Price I am not sure yet. In low volumes to begin with it will obviously be a bit higher.

    Thoughts, opinions, whatever please post and let me know. If you have opinions on wanted power output, bit rate, bit depth, other features, please post as well!

    Edit 29/08/2010:
    If you guys can, I would appreciate some feedback on the following questions:
    • What sound resolution do you need? 16bit, 20bit, 24bit, or 32bit
    • What sampling rate do you need? Is 48KHz acceptable? Would 192KHz sampling frequency be worth a *substantial* price increase?
    • As for Form Factor and Installation Location, would a standard amplifier "look" be preferable to a single din or small hide-away unit?
    • Signal Channel Power Output: Is 4x40W acceptable output (generic headunit power output)? 100W per channel? 200W per channel? And I am talking actual power output to the speakers per channel, no BS wattages. If I say 100W, I mean 100W.
    • Subwoofer Channel Power Output: Desire for low level output in addition to high level output? Desired Subwoofer Power output: 40W, 100W, 200W, 400W, 600W, > 600W?
    • Price: How much is your ideal soundcard and amplifier worth ($USD): <$80, $80, $100, $200, $300, >$300USD


    Also would like at least 2 people, at most 10 people willing to beta test probably around December 2010. Depending on final manufacturing cost, we may need to ask for a bit of cash as the cost to participate in being a beta tester, but that all depends on how much this costs. I would appreciate a little "why I should beta" blurb. Nothing too elaborate, but I would like these to go to people that can actually use the power and features for testing.

    Remember this will be the second ever soundcard in the world with this number of channels at this resolution, and the first in the world to have an extremely powerful output stage as well. Not your average $10 feabay sound card...
    Fusion Brain Version 6 Released!
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  2. #2
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    Sonicxtacy02's Avatar
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    i'm beyond interested but i'm sure you already know that lol
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    MySQL Error soundman98's Avatar
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    that sounds like a great solution for a lot of people!

  4. #4
    Vendor - Qube colin's Avatar
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    Sounds pretty cool! Final price would definitely be the decision maker for me. How far in the design are you? Is there room for input switching?

  5. #5
    Fusion Brain Creator 2k1Toaster's Avatar
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    Quote Originally Posted by colin View Post
    Sounds pretty cool! Final price would definitely be the decision maker for me. How far in the design are you? Is there room for input switching?
    It is fully designed, but always have room for more. Input switching in what sense?
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

  6. #6
    Raw Wave
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    Input switching is really a separate device...since this has no inputs (its just an output device) thats more of a function for a dedicated sound card.

  7. #7
    Maximum Bitrate fixerofallthing's Avatar
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    I would get a couple. Very interested!
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  8. #8
    Vendor - Qube colin's Avatar
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    Quote Originally Posted by justchat_1 View Post
    Input switching is really a separate device...since this has no inputs (its just an output device) thats more of a function for a dedicated sound card.
    Yeah? Damn, I think it'd be pretty cool to be able to direct an external input through the amplifier circuit as a default in case the computer isn't booted or something? Still sounds cool, whats your estimated price right now?

  9. #9
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    I'm interested for the right price. Any idea when they will be available?

  10. #10
    Raw Wave
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    justchat_1's Avatar
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    Theres no fully designed unit (akaik) hes just gauging potential interest. Price depends on the final design and the number of expected customers.

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