I agree with most of this. I do feel Jose did install a master volume in his amp with some zeners.
Put your self in Ed’s shoes. “Hey Jose, I love my amps sound, but it is too damn loud for some of these clubs. The sound guy keeps making me turn down. When I turn down, the amp just doesn’t have it. If I use a MXR Distortion + pedal out front it is just too noisy with the phase 90, flanger and echoplex. Jose: sure Ed, have you tried the Dimarzio super distortion pickup? What about those Ibanez and Mighty Mite pickups? They will help push the amp. Ed: yeah, I know about that Dimarzio pickup, but I don’t like it much. I do like the Gibson humbuckers. Jose: yeah, when you find the right Gibson PAF, it can really help drive the amp too. I can add a master volume and you can just turn it down a little for some of the smaller clubs to manage the sound. Thing is, if you do turn down, it won’t drive the amp the same, so I have a little trick that will make the amp sound more natural and have the same gain as your amp on 10 when the new master volume is only on 5. It will still be loud, but I’m sure you will like it. Heck, we can put it on the back of your amp without a knob and nobody will ever know. Then when you hit it big and start playing stadiums like Frampton and Cheap Trick, we can just remove it. Ed: great idea Jose, I just need to lower the damn volume some for when I play at the Whisky. Jose: no worries Ed, I will take care of it. Adios!

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