One more finished BrianGT 3875

ejn327 · 2nd March 2005, 02:33 AM

I got the amp finally finished over the weekend and have been enjoying it ever since. This thing sounds great. I ordered 2 kits to run 2 chips per channel in parallel. I had some trouble with one of the chips having a unusually high DC offset causing one channel's chips to get real hot, but Brian hooked me up with a new one and it solved the problem.
The first thing I noticed when I turned it on was a lot more bass. Previously I was using a pioneer 1014 which did a good job, but this beats it hands down.

It sure was a pain getting everything in place inside. The wire I used was very stiff. Things always seem bigger on paper, I could have used some more real estate inside to clean it up.
Thanks for everyones help. I would probably have given up with out some of your tips.

homer09 · 2nd March 2005, 02:42 AM

classy case

maybe if your wire isnt too stiff, you can twist positive and negative leads to tidy things up, also improves sonics

blip · 2nd March 2005, 05:47 PM

Very nice! Is that case your own design? I'd love to see schematics for it.

homer09 · 2nd March 2005, 09:29 PM

Quote:

Originally posted by blip
Very nice! Is that case your own design? I'd love to see schematics for it.

Seems pretty straight forward, why would schematics be needed? im guessing ejn327 didnt even make any. Thats why i like this case, its very simple yet classy. Its basically 4 finished wood panels fitted to a pair of nice heatsinks. My guess

ejn327 · 3rd March 2005, 12:47 AM

Yup, Homer's right. I had a general idea of what I wanted to do with the extruded 80/20 aluminum for the corners and the wood. I ended up getting the heat sinks from a guy locally who has an aluminum extrusion plant.
The aluminum can be tapped with 1/4 - 20 thread and I used some acorn nuts to match the top of my flexy rack that I made a while ago.
The overall dimensions are 12.75 D x 15.5 W x 4.75 H.

2nd March 2005, 02:33 AM	#1
ejn327 diyAudio Member Join Date: Dec 2004 Location: West MI	One more finished BrainGT 3875 I got the amp finally finished over the weekend and have been enjoying it ever since. This thing sounds great. I ordered 2 kits to run 2 chips per channel in parallel. I had some trouble with one of the chips having a unusually high DC offset causing one channel's chips to get real hot, but Brian hooked me up with a new one and it solved the problem. The first thing I noticed when I turned it on was a lot more bass. Previously I was using a pioneer 1014 which did a good job, but this beats it hands down. It sure was a pain getting everything in place inside. The wire I used was very stiff. Things always seem bigger on paper, I could have used some more real estate inside to clean it up. Thanks for everyones help. I would probably have given up with out some of your tips.

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2nd March 2005, 02:42 AM	#2
homer09 diyAudio Member Join Date: Jan 2004 Location: Montreal	classy case maybe if your wire isnt too stiff, you can twist positive and negative leads to tidy things up, also improves sonics

2nd March 2005, 05:47 PM	#3
blip diyAudio Member Join Date: Mar 2003 Location: Salem, OR	Very nice! Is that case your own design? I'd love to see schematics for it.

3rd March 2005, 12:47 AM	#5
ejn327 diyAudio Member Join Date: Dec 2004 Location: West MI	Yup, Homer's right. I had a general idea of what I wanted to do with the extruded 80/20 aluminum for the corners and the wood. I ended up getting the heat sinks from a guy locally who has an aluminum extrusion plant. The aluminum can be tapped with 1/4 - 20 thread and I used some acorn nuts to match the top of my flexy rack that I made a while ago. The overall dimensions are 12.75 D x 15.5 W x 4.75 H.

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