08-20-2016, 01:40 AM
Hey DR,
The original reverberockets are really great amps. I've worked on a few of them and really like them.
I will say that stock I find the design to be really dark/lacking in high frequencies. You should have a schematic glued to the back panel of the amplifier, I"m looking at the schematic for the R12-Rb which is the version of the amp with the 7591s but for all practical purposes the amps should be identical aside from the power tubes.
C19 is a .01uf capacitor that goes from pin 2 of V3 to ground, essentially dumping high frequencies. I really don't understand why ampeg did this... it sounds really dark. I tend to remove that cap.
but if you like the way it sounds now, perhaps someone already did this, or maybe you don't mind it.
The original reverberockets are really great amps. I've worked on a few of them and really like them.
I will say that stock I find the design to be really dark/lacking in high frequencies. You should have a schematic glued to the back panel of the amplifier, I"m looking at the schematic for the R12-Rb which is the version of the amp with the 7591s but for all practical purposes the amps should be identical aside from the power tubes.
C19 is a .01uf capacitor that goes from pin 2 of V3 to ground, essentially dumping high frequencies. I really don't understand why ampeg did this... it sounds really dark. I tend to remove that cap.
but if you like the way it sounds now, perhaps someone already did this, or maybe you don't mind it.