2. amps-preamps
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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
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Showing 1 response by 213runnin

213runnin
914 posts
 
No sir, there is no impedance switch.  That's for weaker amps or girlie receivers that have no jam.  It'll be fine with your 4 ohm speakers.


On the other hand, you might want to consider the age of the 555.  Shine a light inside the amp to see if there are any bulging or leaking caps, as a 30+ year old amp can develop issues.
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