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Adcom GFP-750 Modfication Question

Has anyone had their Adcom GFP-750 preamp modified or heard one thats been modified by Stan Warren at Supermods in Eugene,Oregon?
If so, does it make a big improvement?If so, in what ways?
What all does he do to it? Or, am I better off keeping it stock from the factory?
daltonlanny

Showing 2 responses by ritteri

ritteri
223 posts
 
SUrprisingly Id be interested in what mods he actually does. I cant believe he does any mods to the passive circuit which is almost perfect to begin with. DOes he mess with the active stage? Sound deaded? Whats he charge?Give some details. Website etc....
ritteri
223 posts
 
Black Gate caps give a warm liquidy feel to the midrange from the research Ive done and heard. Downside is break-in time. The consensus is it takes about 500-1000 hours for break-in. $150 may be worth the price if you use the Active Stage. I never needed to when I owned this unit awhile back, I was always in passive mode using all xlr's. ANd as they say, the best pre-amp is no preamp, and the closest to no preamp is a simple passive resistor with minimal traces design of Nelson Pass.
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