Has anyone compared GC amps(LM3875/3886/4780) with other DIY SS amps(Leach,ESP) ? - Page 4

Byrd · 11th January 2006, 04:24 PM

Hi Percy

p3a - Simple to build but sounded a muddy in the mids. Reasonable bass

MyRef 3886 - Also simple to build, much better resolution in tops but for me a slightly annoying nasal quality in upper octaves. Overall very good though.

Leach 4.5 - Lovely mids & tops - a bit lean on the bass for some.

Jens Rassmusen's Leach - Fluid clean mids & definatly more bottom end & more solid bottom end than the original Leach.

All of these IMHO outclass standard commercial hifi (Rotel, Nad) etc and each comes with it's own set of tradeoffs including the sound, price as well as the contruction difficulty.

kifeinthesink · 13th January 2006, 01:33 AM

Splurge on some decent parts if you want the best sound.

I was sceptical about the value of expensive potentiometers, caps and whatever else that where being used in some "deluxe" implementations. Some thread got me thinking abit though and I happened to find some really cheap bournes pots and figured I'd see what happened. The results amazed me. It really pushed my amp into another rhelm of quality. Next GC I build is going to be premium parts all round. Cant wait!

11th January 2006, 04:24 PM	#31
Byrd diyAudio Member Join Date: Dec 2003 Location: Cape Town, South Africa	Hi Percy p3a - Simple to build but sounded a muddy in the mids. Reasonable bass MyRef 3886 - Also simple to build, much better resolution in tops but for me a slightly annoying nasal quality in upper octaves. Overall very good though. Leach 4.5 - Lovely mids & tops - a bit lean on the bass for some. Jens Rassmusen's Leach - Fluid clean mids & definatly more bottom end & more solid bottom end than the original Leach. All of these IMHO outclass standard commercial hifi (Rotel, Nad) etc and each comes with it's own set of tradeoffs including the sound, price as well as the contruction difficulty. __________________ Ross Saunders

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13th January 2006, 01:33 AM	#32
kifeinthesink diyAudio Member Join Date: Oct 2005 Location: Guelph, Ontario	Splurge on some decent parts if you want the best sound. I was sceptical about the value of expensive potentiometers, caps and whatever else that where being used in some "deluxe" implementations. Some thread got me thinking abit though and I happened to find some really cheap bournes pots and figured I'd see what happened. The results amazed me. It really pushed my amp into another rhelm of quality. Next GC I build is going to be premium parts all round. Cant wait!

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