2. amps-preamps
  3. 1217008796

Adcom GFA 555 amp upgrades

Hi. I own an Adcom GFA 555 amp, and I'm wondering if its practical to upgrade the amp to the standards of the Adcom GFA 555 series II (or better). Love the power and flexibility of this amp, as it powers my 4 ohm Kef Reference 103/4 towers with ease, but you know how it is, we audio junkies are always trying to squeeze a bit more fidelity out of our gear. Many thanks! -David
klipschking
driver's avatar
driver
750 posts
 
The old 555 is a decent amp but I wouldn't do a factory upgrade, as you'd be better off selling what you have & buying the different version.

If you really, really want to hang on to this amp & price isn't your main concern, you can get someone like Musical Concepts to mod it.
joenies's avatar
joenies
258 posts
 
You might want to call Musical Concepts. They specialize in Adcom Mods plus more. Been around for many years and have gotten some very good reviews.
Joe Nies
fruff1976
103 posts
 
My dad got a gfa 555 years ago and it was the one that originally gave me my Audiophile epiphany. He still uses it and it's going strong. I don't know if you'd really gain anything by going to the series 2 though. What about that one designed by Nelson Pass (I can't remember the model)
More to discover