I have used this amp in a variety of systems. It’s punchy and clean, more "warm" or "smooth" in the mids than the pre-MOS-FET designs, and always maintaining great control of the woofers. Note the amps in this series can all be mixed-and-matched since they all have 29dB gain, handy if you’re considering multi-amping. This is a great vintage amp, very sweet sound, no gimmicks, for a reasonable price. If you only need 50wpc, this is a great unit. Another Nelson Pass design (the series was made up of the 5200 5300 5400 5500 5502 and 5800 models), this amp is a variant of his famous MOS-FET series for Adcom. These are nice amps to upgrade: Pass states on DIY Audio that “I would bias it until the sinks run 50 deg. C after an hour or two. If you don't have a thermometer, this would be the temperature that you can leave your hand on the sink for 10 seconds.” It currently runs cool, so less Class A operating area but very stable and it has the great, warm, tube-like MOS-FET sound. My amp still seems perfect and I am NOT considering replacing the power supply caps or anything like that at this point- there may be a time, but if it sounds good, it is good. Excellent steel cab, quality binding post speaker terminals- seems indestructibleRead full review
Verified purchase: No
Attention, les appareils américains sont souvent en 110V. J'ai "grillé" quelques compoants en oubliant ce détail et en branchant sur une prise 220V, dans la frénésie de la livraison ! Autrement, ce sont de vieux matériels, mais fabriqués avec d'excellents composants, ils n'ont pas à rougir, loin s'en faut, face aux productions "contemporaines". Celui-ci bénéficie d'une très grosse alimentation qui lui permet de suivre les crêtes sans "sourciller". Les préamplis de la marque sont aussi très bien, et surtout, pas chers ! "Mon" vendeur est très sympa et compétant. Bonne musique. Pascal.
Verified purchase: Yes | Condition: Pre-owned
Good sounding mosfet amp. Happy with it. Don't need the high watts anymore and this works well.
Verified purchase: Yes | Condition: Pre-owned
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