The JVM does sound good with 75s, and it's designed to go with 75s, so it all works out.I tried mixing the V30's and GT75's in a cab...didn't like it at all.
Whether it was the Jube head or the JVM...one or the other but not both.
I will say the Jube favors the V30's as did the JVM, but the JVM is about the only amp I could make the GT75's really sound great.
Yup!-check out what CELESTION's recommend's for a HEAVY METAL speaker package, not sure its on there web page anymore but I know its still on MUSICIANS FRIEND web page.
Vintage 30s and G12T-75s do not play well together. There's nothing inherently wrong with mixing them in the same cab, or having separate cabs, but the Vintage 30s will stomp all over the 75s. Vintage 30s are significantly louder than G12T-75s.