Nice list of stuff! Always liked Cropper and Robben Ford – both Red Knob Twin users. I’m enjoying mine. Very versatile amp, but misunderstood, due to the wide ranging tone controls. Most folks sweep from extreme to extreme in the first five minutes, and draw a premature conclusion.

“Red Knob” Twins have their place. Some good comments above — they’ve got a nice clean sound, though the overdrive won’t suit everyone’s taste. The reverb works well, but there’s no tremolo. I own a backline company and keep two of them on hand, primarily for Steve Cropper — it’s his amp of choice, at least when it comes to backline requests. I just fired them up to make sure they’re ready for him; they’re going out this weekend.

— Mark
Backline Nashville
BacklineNashville.com

What a great amp. The clean channel can get close to a blackface, but can honk too. The drive channel is very versatile with broad ranging tone controls – maybe too broad, leading folks to over-correct and bypass the sweet spots, especially with the SIX pull-push pots. The speakers supplied are ok, favoring the clean channel. With the right speakers, The drive channel really stands out. It is quite loud – removing two tubes as described in the manual, and flipping the 1/4 power switch reduces this 100W beast to a more manageable 12W workhorse.

I have a red knob twin. Thinking of wiring two ten inch speakers (4 ohms ea.) as an extension cab. How should I wire these speakers and which ohm setting should I use on the amp? Thanks, jim

I used to have an Evil twin red knob. In a flight case. It fitted into the car but was a four man lift. Now the car’s suspension has gone. Along with my back. So I now have the red knob Super 60 valve amp. 1×12 half the watts just as loud and clean. But 2/3 the weight and same quality build and sound. Perfect. I would recommend the Super 60 if you value your bones.