The MosValve input impedance is different then the McIntosh amps similar to the Mc2300 most guys are using. So, theoretically the outcomes will be different because the math is different at the coupling of the Fender Preamp and the different amps. When the equipment is correct, the known Jerry settings work. No need for random, or altered settings IF the later hybrid rig tone is what you are after. Guitar specs, pickups and onboard preamp(or not) will help for dialing in a specific year. All this has been covered, so I will try and answer the OP's question, it probably started when he went to the hybrid combo's or very soon after. They were very keen on frequency separation and Weir talks about using Humbuckers to help differentiate his guitar tone from Jerry's. He talks about noticing this early on, and trying to specifically stay out of Jerry's tonal space. Jerry's theme was consistency and I have seen in my research of his rigs this played out. His choice to stay with the Hybrid tube pre/solid state amp was because of it's consistency. Alligator, believe it or not, is very much like all his other guitars minus a couple frets, inline tuners and single coils. Yes, the wood make up is different between them all, but the setups and wirings are pretty consistent with small differences. He used Travis Beans for a short period specifically for their consistency. Same thing for his love of the Fender Preamp, McIntosh amps, and JBL's. Budman is the single most used piece of equipment that he used. It was there from the W.O.S. up until the end. But yet it is the single piece of equipment most are willing to try and replace.
That said, I am curious about why some would be looking into the settings of this Pro Reverb when he is playing a pedal steel guitar? Those settings would not translate. Also, just to clarify, there is a Mid potentiometer on the Vibrato channel of the pro reverb he is using, it is not on the Normal channel.
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