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Old 21st February 2011, 06:59 PM   #1
diyAudio Member
Join Date: Feb 2011
Default 12v supply with Amp10 Basic (Tripath 2022)?

Hey guys, I'm pretty new to the DIY audio scene. I'm building a carputer to control audio/video in my car and have to make an amp to amplify the motherboard outputs. I'd like to get 4 channels at 100w rms. I was thinking about building a pair of 41hz Amp10s based on tripath 2022 chips, but it requires 35v input. Unfortunately, in a car environment, we are limited to 12v DC. What're would be the best solution for boosting voltage? Is there a better option than Amp10 to get 4x100 rms watts? I'd rather not just go buy an external amp cause I need to integrate this into the computer case (small space). Thanks in advance!

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Old 22nd February 2011, 08:23 PM   #2
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Join Date: May 2008
You have three options in a car. A single ended amp will give something like 4-5 W into 4 Ohm, a BTL amp will give something like 16-20 W into 4 Ohm and the third option is to use a DC/DC converter that steps up the voltage. That last thing is pretty much an SMPS and commercial amps contain it for high output power. You should find such a thing in electronic stores.
If you've always done it like that, then it's probably wrong. (Henry Ford)
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