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17th February 2010, 08:18 PM
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#1 |
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diyAudio Member
Join Date: Apr 2008
Location: Israel
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20 Watts Car Stereo Amp with TDA2004
Will you please advise me on this project?
I want to build a small car audio amplifier to get the experience. I found this 20 watts stereo amp using the TDA2004 at 20 Watts Car Stereo Amplifier Using TDA2004 | Free Circuit Diagram (I am not even sure if it is an IC or a transistor...), but the schematics seem "understandable" to me. Anyway, would you please "mentor" me on this. I am 55, live in Israel and work in the audio industry (loudspeaker manufacturing), and I will really appreciate any help on this project.
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Aharon David (Eron) "Money can buy everything, except civilization" |
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17th February 2010, 09:34 PM
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#2 |
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diyAudio Member
Join Date: Feb 2008
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Do check this will deliver the power you expect, google for the data sheet. Into a 4ohm speaker you may get 6watts a channel at 1% distortion or so.
The 20 watts stated is only into 1.6ohm bridged (as a mono amp) at quite a bit of distortion. There are a range of Chip amps (this is one) of different powers, ask in the Chip amp forum for recommendations. |
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20th February 2010, 10:41 AM
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#3 |
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diyAudio Member
Join Date: Jun 2006
Location: Hunter Valley,NSW,Australia
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I'm 57 and I run 2 X 2024 Sure amps from the line level outputs on my car stereo.I stuck them in the pocket in the dash under the radio-hooked up the front speakers to one amp and the rears to the other.
It sounds great. coit |
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20th February 2010, 05:31 PM
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#4 | |
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diyAudio Member
Join Date: Apr 2008
Location: Israel
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High distortion... I pass! LOL
Quote:
A friend also told me that the problem with car amps is the voltage available: 12VDC is way too weak, and bringing it up is a task for a factory. But I am not disheartened, because what I want to accomplish is to build an amp *that works*, so I will look for a home project. DIYAudio looks like the place to find it! My current project is a DIY bookshelf speaker (MTM with Morel drivers). It makes great music with my Hafler 9270, and I am disassembling it tonight to start the finishing job (primer and paint). A great week to all you guys!
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Aharon David (Eron) "Money can buy everything, except civilization" |
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