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Old 30th August 2006, 12:52 AM   #1
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Default High power amp

Hi,

I want to build a high power amplifier. Does anyone know of any place on the internet where I can get a pcb with schematic/parts list for such an amp, or a kit? I'm looking in the 300+Wrms range.

David
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Old 30th August 2006, 04:10 AM   #2
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I'd look at 41Hz AMP2 kit.

http://www.41hz.com/main.aspx?pageID=87
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Old 30th August 2006, 04:55 AM   #3
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Default from 41Hz

Note

The AMP2 is an advanced high power amplifier. Building AMP2, requires considerable experience in building electronic devices. It is not suitable for "beginners". If you would like a simpler to build, smaller amplifier, take a look at our AMP1 boards or the AMP3.
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Old 30th August 2006, 05:02 PM   #4
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I have a fair amount of experience in building amplifiers. I've built a 1 watt and 10 watt amplifier and I'm working in my third amp (30W). It doesn't look so hard from the discription on their website. I've dealt with surface mount components before. Looks like a great amp to me. Thanks Ben!!!
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Old 30th August 2006, 08:31 PM   #5
Bearman is offline Bearman  United States
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If your in no hurry, Jan has some new amps coming out fairly soon. Look for the "TruePath" amp. It should be just what your looking for. 2x300w based on the TA3020 chip.

It should be somewhere around mid-late September.
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Old 12th September 2006, 06:23 AM   #6
Hayden is offline Hayden  Australia
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While talking about high powered amps Iím after an amp to build kit or whatever about 1000Wrms mono or 2 channel to drive some mtx thunder 9500 subs 12v or mains.
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Old 12th September 2006, 10:18 AM   #7
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Hi David

At the risk of been accused of marketing, if you want high power amplifiers have a look at the AV1000 amplifier or AV800 Amplifiers
The choice is yours

Another choice would be Rod Elliott
at http://sound.westhost.com

Just in case I get slapped by a moderator
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Old 12th September 2006, 04:32 PM   #8
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by The Saint
Hi David

At the risk of been accused of marketing, if you want high power amplifiers have a look at the AV1000 amplifier or AV800 Amplifiers
The choice is yours

Another choice would be Rod Elliott
at http://sound.westhost.com

Just in case I get slapped by a moderator

Should not be a slap if your promoting both product's.

I vouch for the av800 tho. Great amp. Simple to build and great support from the builder.
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Old 12th September 2006, 08:58 PM   #9
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Default Re: High power amp

Quote:
Originally posted by DavidWardlaw
Hi,

I want to build a high power amplifier. Does anyone know of any place on the internet where I can get a pcb with schematic/parts list for such an amp, or a kit? I'm looking in the 300+Wrms range.

David
Check out National Semi's BPA300 -- same idea is to bridge-parallel LM4780's -- note that when you parallel amplifiers the input impedance decreases so a preamp (or buffer) is probably necessary.

With a little ingenuity you could bridge-parallel a couple of the boards I had made up: http://www.tech-diy.com/chipamps.htm

The heatsinking is rather prodigious for this project.
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Old 13th September 2006, 03:38 AM   #10
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The TDA7293(4) chips can do around 100W each and you can slave them together to get as much as you want (there designed for it too) as for a kit or pre-built board I'm not sure where to get them but they are a half decent chip
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