Comments on Fostex Lab 600 Amp circuit?

thejohn · 8th May 2006, 07:27 PM

So I got my hands on this old Fostex Power Amp, built like a tank, 1.3KVA torroidal power trans, 18000uf cap per rail, huge heatsinks... Initial listen and I reckon it sounds pretty good, serious bottom end, powerfull and controlled,quite detailed without being harsh / grainy / irritating. I think it has potential for sounding really good with a bit of modification. It's getting on a bit in age so new electrolytics are going in, coupling caps are polyester - could replace with polyprop. Transistors are mostly unavailable.. Do any of the resident experts have any ideas on modern replacements or comments on the circuit in general? Any thoughts on worthwhile mods?

Thanks,
John
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8th May 2006, 07:27 PM	#1
thejohn diyAudio Member Join Date: Mar 2005 Location: Cape Town, South Africa	Comments on Fostex Lab 600 Amp circuit? So I got my hands on this old Fostex Power Amp, built like a tank, 1.3KVA torroidal power trans, 18000uf cap per rail, huge heatsinks... Initial listen and I reckon it sounds pretty good, serious bottom end, powerfull and controlled,quite detailed without being harsh / grainy / irritating. I think it has potential for sounding really good with a bit of modification. It's getting on a bit in age so new electrolytics are going in, coupling caps are polyester - could replace with polyprop. Transistors are mostly unavailable.. Do any of the resident experts have any ideas on modern replacements or comments on the circuit in general? Any thoughts on worthwhile mods? Thanks, John [IMG][/IMG]

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