Upgraded version of the Gainclone (or chipamp) LM-3875 amp, based on
the famous 47 Labs’ Gaincard amplifier. Approximately
50 watts per channel into an 8 ohm load.
This unit was custom-built with high quality components in a very
attractive and sturdy IAG Audio chassis (which is even nicer in person than the
photographs suggest) and includes dual stereo outputs (you can toggle between
two sets of speakers), silver-plated audio wiring, three inputs, dual power
supplies, upgraded gold-plated RCA connectors, Greyhill source selector, a
massive pure copper heatsink, stereo attenuator, 330 watt toroid, ferrite core
(to eliminate noise on the incoming AC line), polished stainless steel DACT
knobs and illuminated front panel switches.
The Gaincard / Gainclone design focuses on high quality sonics,
excellent power supply rejection ratio, fast response, accurate bias current,
over-temperature protection and short-circuit protection. The design goals for
this amplifier were (a) to build the highest quality Gainclose possible at a
reasonable price point, (b) excellent cosmetics, (c) maintain short signal
paths and (d) overbuild to ensure reliability and longevity. This is a sweet amplifier – it sounds
terrific, looks great, throws an impressive and powerful soundstage and is very
Available for audition in the Western suburbs of Philadelphia.
Shipping costs are the buyer’s responsibility. If paying by PayPal, add an additional 3% for
I neglected to mention this previously, but this amplifier was one of 4 that I built with a friend. I build solid state and tube amps and preamps as a hobby and did most of the principal work on the Gainclones. Everything in it is clean, there is no hum and this amp really is designed to go the distance (overbuilt doesn't begin to describe it).