has anyone built any amp from ESP?

j_dunavin · 19th October 2006, 04:29 AM

And how does it sound? performance? ease of build, ect?

XEAGLEKEEPER · 19th October 2006, 09:40 AM

Ive built two P101 Mosfet 2-channel High power version they sound fantastic. Very pleased with results. Ive posted pics on esp forum under P101 close to completion. In the amplifier gallery.

PMA · 19th October 2006, 09:59 AM

I had built the project 83 before it was published ...

TGRANT · 22nd October 2006, 10:23 PM

I’m building his “60 watt into 8 ohm load” amp. It’s completed and I will power it up as soon as I get an hour or two. Before I built it I ran it on a simulator and it simulated fine. I made a few changes because of availability of parts (the low power transistors), and I made my own PCB. I’ll let you know how it sounds, provided I built it correctly and the whole thing doesn’t go up in smoke….

traw · 26th October 2006, 05:21 AM

built p101 as well. only pain i had was that i was used to irfp240's which fit 6-32 screw. tapped my holes for 6-32 and bit of effort getting through. i used the aluminum oxide pads as insulators, easier and less fear of puncturing the silpad often used. thing keeping me from using my a whole lot is i need to put a softstart in as i have a 800va toroid in there - usually can start up as long as no signal playing. thinking bout downing to a 500va toroid as this 800 also vibrates the chassis.... but mine is dead silent clean clear and strong. used 6 x 6800uf elna lpa caps (solen, good price). topped it off with vampire jacks and posts.

bushroot · 26th October 2006, 05:12 PM

I built a P101 as well. I was experiencing humming issues, but I'm rebuilding it now to take care of that (think it might have been a wiring issue). These amps are very powerful and very musical.

http://home.comcast.net/~bushroot/index.html

The messy before pictures...

Consul · 27th October 2006, 02:58 AM

Traw, if I may ask, where did you get that chassis? I'm hoping I can find something like it. Thanks!

traw · 27th October 2006, 03:33 AM

built from scratch. easier with big heavy heat sinks, when you can find them at reasonable price. although the horizontal arrangement of fins zaps 30-40% of the sinks efficiency, still plenty for class AB. makes mounting top bottom plate easier, don't need angle brackets or squre rods etc. also these heat sinks had a hefty 1/2 base. drill n tap, repeat.

Consul · 27th October 2006, 01:51 PM

Okay, I think I see how that works. Thank you for the reply!

XEAGLEKEEPER · 27th October 2006, 10:23 PM

Bushroot
Hows the rewiring coming along.

19th October 2006, 04:29 AM	#1
j_dunavin diyAudio Member Join Date: Oct 2005	has anyone built any amp from ESP? And how does it sound? performance? ease of build, ect?

22nd October 2006, 10:23 PM	#4
TGRANT diyAudio Member Join Date: Sep 2006	ESP amp I’m building his “60 watt into 8 ohm load” amp. It’s completed and I will power it up as soon as I get an hour or two. Before I built it I ran it on a simulator and it simulated fine. I made a few changes because of availability of parts (the low power transistors), and I made my own PCB. I’ll let you know how it sounds, provided I built it correctly and the whole thing doesn’t go up in smoke….

27th October 2006, 10:23 PM	#10
XEAGLEKEEPER diyAudio Member Join Date: Jan 2006 Location: central Iowa	Bushroot Hows the rewiring coming along. __________________ Ret. USAF... AKA- Avionic * Solder slinger for hire...*

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19th October 2006, 09:59 AM	#3
PMA diyAudio Member Join Date: Apr 2002 Location: Prague, Kitakyushu, Fukuoka	I had built the project 83 before it was published ...

26th October 2006, 05:12 PM	#6
bushroot diyAudio Member Join Date: Oct 2004 Location: The high-five state	I built a P101 as well. I was experiencing humming issues, but I'm rebuilding it now to take care of that (think it might have been a wiring issue). These amps are very powerful and very musical. http://home.comcast.net/~bushroot/index.html The messy before pictures...

27th October 2006, 02:58 AM	#7
Consul diyAudio Member Join Date: Nov 2003 Location: Port Huron, Michigan, USA	Traw, if I may ask, where did you get that chassis? I'm hoping I can find something like it. Thanks!

27th October 2006, 01:51 PM	#9
Consul diyAudio Member Join Date: Nov 2003 Location: Port Huron, Michigan, USA	Okay, I think I see how that works. Thank you for the reply!

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