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Old 6th July 2012, 06:50 AM   #1
wilkes5 is offline wilkes5  United States
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Default DIY Car Amp

Love car audio. Do not like communisum/government/etc, so like to have buy most of my stuff made in USA. Have bought a car audio amp which is considered "made in USA", however, took the top cover off to find Fujicon caps and a fan with "made in China" sticker on the back. The amp's USA properties are..

All engineering is proprietary to us as we have our own fulltime engineer in house.

All aluminum is extruded in Gainesville GA. and cut and powder coated here in West Palm Beach Florida

PCBs were done in Texas

We have a staff of 12 employees and all automated equipment in house for full assembly.

All repairs and warranties handled on sight.




The amp specs are..
  • Great for an All-in-One solution or for an incredible 3-way active front-stage!
  • 150 x 6 @4ohms all channels driven.
  • Channels 5 & 6 can be bridged for 1000 watts and is stable to a 1ohm bridge.
  • The amplifier has Burr-Brown pre-amp section
  • 82% efficiency
  • Slew rate is 19v
  • Ultra Small footprint 9.5" x 2.25" x 10".
  • Signal -to-Noise: > -101dB
Just wonder if it's possible to DIY something like such completely with parts MADE IN USA? Is it something which should take upon myself to learn how to do or would it be easier to maybe pay someone who knows how. Really want to learn how to do electronics, starting first electro class "DC current" class in fall, so late start bc 27 years old now.
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Old 6th July 2012, 07:01 AM   #2
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by wilkes5 View Post
Just wonder if it's possible to DIY something like such completely with parts MADE IN USA?
Im certain it would be difficult to find all parts
and Im not sure it would make sense either
but thats your choice, and game
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Old 6th July 2012, 08:41 AM   #3
Mote is offline Mote  Estonia
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Replace the caps and a fan with a sticker that says: "Made in USA". And there you go: 100% USA amp. But it will be nonsense, you can just take the cash which you would plan to spend on the US parts and set fire to it. The effect on amplifiers quality is the same either way.

If you want to learn to understand electronics, then buy a broken amplifier and try to repair it.
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Tools: Perrys tutorial, C1-76 o-scope, Weller WHS40, Mastech MAS830L multimeter, Mastech MY6243 LC meter, 16A supply
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Old 6th July 2012, 04:12 PM   #4
wilkes5 is offline wilkes5  United States
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is it possible to DIY an amp with the same capabilities and have it sound as good? any good books/websites with instructions for such?
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Old 6th July 2012, 04:13 PM   #5
wilkes5 is offline wilkes5  United States
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so, US made components are not as good as others?
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Old 6th July 2012, 07:23 PM   #6
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Making an amp that's 100% made in the US isn't likely to be possible. At the very least, you'll likely have to use foreign made semiconductors. The cost will almost certainly be prohibitive, especially considering that the market for such an amp (no matter the quality) will be very narrow. People want CHEAP. That's the most important criteria for most all buyers.

Virtually all amps (the power amplifier itself) sound the same. This is due to the negative feedback used in most solid state amplifiers. There can be some differences in the way an amp (overall) sounds due to the crossover design or equalization. This means that you won't be able to build an amplifier that will sound significantly better (one of the only reasons to justify the additional cost). Even if you did come up with a better sounding amp, the budget amp manufacturers would copy it and undersell your product. They can sell amps for less than you could build one for.

That shouldn't discourage you from building an amplifier for yourself.
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Old 6th July 2012, 08:48 PM   #7
wilkes5 is offline wilkes5  United States
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[QUOTE=Perry Babin;3083834]Making an amp that's 100% made in the US isn't likely to be possible. At the very least, you'll likely have to use foreign made semiconductors. The cost will almost certainly be prohibitive, especially considering that the market for such an amp (no matter the quality) will be very narrow. People want CHEAP. That's the most important criteria for most all buyers......QUOTE]

running into brick walls, so let's bet out the "bunker buster". no, where can someone learn how to much a car amplifier from scratch (books/websites/college classes). finding american made parts will be the next step.
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Old 6th July 2012, 08:55 PM   #8
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The Audio Power Amplifier Design Handbook
Buy it and read it twice.

For power supply design, try the Basic Switching Power Supply Design page in the sig line below.
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Old 6th July 2012, 08:57 PM   #9
wilkes5 is offline wilkes5  United States
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Quote:
Originally Posted by Perry Babin View Post
The Audio Power Amplifier Design Handbook
Buy it and read it twice.

For power supply design, try the Basic Switching Power Supply Design page in the sig line below.
thanks dude
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Old 8th July 2012, 01:52 AM   #10
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Quote:
Originally Posted by wilkes5 View Post
so, US made components are not as good as others?
to a point, yes. many parts can be made in the us, and even somewhat competitive, but there are also many components that are just made better or only overseas, imho. doesn't really take that much away to have a miniscule amount of build cost in a few parts.
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