I have a Quad 77 Integrated Amp - one of the earlier ones in grey. [URL]http://www.hi-fi-insight.com/quad-77-integrated-amplifier.html[/URL] The earlier Quad amps seem to benefit from new capacitors every ten years. Is the same true of the 77? I hear no distress from the amp - as sweet as ever. The second hand market for them is not as lively as for the older Quads. Perhaps that will change.