hey guys, i was thinking about replacing the op amps in my zapco studio 100 and a z300s2vx. they both use TL074cn i believe. does anyone know if the burr brown OPA 4227 is a direct drop in upgrade for these? or if there are other options to go with? or for that matter, are there any other mods anyone has done as far as SQ is concerned? i also have the elna and panasonic fc caps that will be needed to recap both. both work fine as they are now, just having an OCD moment.
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