1kW MOSFET amplifier

[Nelson Pass]

Last time I looked, you could still download a
student/demo version of MicroCap from
Spectrum software. I use an older version of
MicroCap on the few occasions I run simulations.

[Kilowatt]

I'm not really after a certain dB level, I'm after as much as I can reasonably get with 7200W for bass, and I want a 7200W high end amp that I built myself, so the 7200W is in, but I can't afford to finish the whole system very soon, so I just plan on working on a few of the 900W channels for now, but I don't see how I could get very far on that without good design software, a distortion analyzer, and an oscilloscope, I'll probably get Electronics Workbench. I don't know when I'll have the money, so I'll get back to the thread when I have my Leach amps done. I'll get back to it as soon as I can.

By the way, Kelly, if you have something to say some time, by all means, go ahead, but if you don't want to post on the matter any more, ok, but thanks.

R. McAnally, "is it illegal to use someone's computer?" There is almost no chance that anyone in my hometown or even within a fifty mile radius has Electronics Workbench anyway.

[PassFan]

Kilowatt:
Sorry about the tranny post. I didn't see Audiofreaks post.

Haldor:
You must have your threads mixed up. There is no explanation about using the pole mounted transformer in this thread.

[AudioFreak]

PassFan....

Kilowatt will effectively be using the distribution transformer up on the power pole.

[PassFan]

Audiofreak:
Do you think he'll get permission from the power company first.

[AudioFreak]

he wont really need it ... all the power that enters the home/building uses the distribution transformer.... all he will do it plug the amp into the power point....

[subwo1]

I, like Nelson, like MicroCap. It takes very little effort to use. If I had enough money I would buy the full version.

[djss]

I too am in the process of building a multi-kilowatt amp. Mine is simply an 8 channel Leach SuperAmp. I plan to use it in 2 modes, 7.1 DTS (or 5.1), or bridged into 4 channels. The 4 channel bridged mode should be near your 7200W amp (combined). I got a 48 inch stainless steel rack + stainless steel drawers mounted on rails. The drawers are something like 10 inches tall and 28 inches deep. The final unit will house all 8 channels, a computer, digital processors, a water cooling system (with 2 tranny coolers), and over 30 120mm ball bearing fans on temp sensing switches.

I got the rack and drawers (50x38x24 inches, or close to that) and all the fans plus a big reel of coax signal cable and tons of other connectors and stainless rails for a total of $24. The water pump I got from my girlfriend's mom, who works at a garden hobbyist shop.

If you have any questions about my amp, feel free to let me know. I have found a way to QUICKLY identify and change a busted output transistor or an entire channel. In the end, I should be able to replace a busted channel and have the system running again in less than 2 minutes. I'm trying to put all the knowledge that I learned from my last 3 amps into this one.

As for your problems concerning design and test: I interned with an electrical engineer last year, and I can always go to him with troubles or requests to use his digital scopes or test equipment. Also, I can get help from professors at school on many issues.

That's just an overview, I'd be glad to answer any questions about the project.

PS....I'm taking MANY MANY MANY pictures this time around.

=DJSS=

[Kilowatt]

Great, I'll let you know if I have any problems. For now, I just need to worry about getting the water pump for my amp working. (it's liquid cooled, remember) It's a water pump from a little Toyota 4 cylinder engine, which happens to be separate from the block, unlike most water pumps on engines. I am (hopefully) going to run it with a 1/2 hp 3450 rpm Kitchen-Aid dishwasher motor (it's very quiet). I'm not sure how this motor was originally started, but I've had it running in capacitor-run mode. This setup doesn't have nearly enough starting torque for my pump.

[jleaman]

ok people this is confusing, your all arguing about power and bridging to get more power BUT WHY what are you going to do with 16oo watts and up is there some kinda pride in having that much power, what is the poing unless your entertaining thousands of people and need all that power there is no point also you'd have to be ritch to run it every day it would consume so much power to turn it on and keep it running..

why not just build a class a ( or tube amp) with about 100 watts pure power and a realy good pair or efficiant speakers. .. that is what i am doing.. but my sub will have lotsa power ehhe and you dont need class a for a sub at all.. it is kinda pontless to me that you gus are wangint to have all this power and to do what with it if you were to listen to it youll be deaf in like no time.....

correct me if i am wrong but if you want loud go get a pair of head phones and CRANK IT UP..

Jason

P.s is anthony still around i emailed him and he never replyed.. to me..