If you watch the rig rundown, Rene when talking about the SSS goes on and on talking about Dumble, and then when he gets to the Bandmaster says nothing about Dumble and raves about it being "the legendary fender bandmaster." I'd be willing to bet it's just a stock vintage Bandmaster. Don't be afraid to run the preamp hot and turn the master down to bedroom I have talked quite a bit about amp design and such he's been really good about cluing me into things I've almost missed when I was building my JMSig and going to disagree re: the Bandmaster being a Dumble Ultraphonix. The high gain phase inverter gave it a snap at any volume and the TAD 6L6 was neutral compared to the darker JJs I was running before. I found the most tone and clarity came out by using a reissue Mullard CV4004 in V1, Solvtek 12ax7lps in v5 (phase inverter), and TAD 6L6WGB for power tubes. So I really do think that the real amp was designed to be brighter to compensate for the efficient JBLs and #004 likely won't sound good without a resonant cab like the JMOD 2x12 or the original 004 combo with the JBLs which is what we've been hearing in recent JM Your friend with the SSS, I highly recommend he/she try different tubes. The JBL speakers compared to G12-65H in the same cab, the JBLs is like turning your bass up 3 extra notches. Welegan said he took a look at the amp but didn't mention what speakers he was using to present his take. My take on this subject is that the amp was designed to work with the JBL D131 speakers because those speakers are incredibly efficient with bass. Welegan replied to my Dumble Facebook group post about the real SSS 004 was bright and lacked bottom end. I was not invited to the close-door society of amp builders who have worked on the real SSS #004 and I tried pretty hard by offering to sign NDAs and such. Any difference is because of component availability. There is a schematic trace of the Sterling and I was not able to find any meaningful deviations between that and the Ceriatone SSS although I believe the filter position on the Sterling is different than Ceriatone's. I honestly have no idea if it made a difference or not but I can rest easy knowing I did all I could lol. Some say the 2W Piher resistors Dumble selected for GNFB is the key to the "magic" so through a generous donation from a TAG member, I was able to add the exact resistor to my circuit. The Ceriatone came with more NOS parts than I expected like 6PS Polyester caps which was really cool. Some parts I deviated from Ceriatone is in component selection on global negative feedback, tight tolerance tone stack capacitor, and I used low loss/capacitance shielded Mogami cables for internal routing to preserve the clarity. I'll do my best to be as transparent about my amp as I can and happy to go into more detail if I left something out. Thank you for the kind compliments on the tone of my amp!! It helps having the amp through the paces with Mayer tunes. You're right that mine is mostly Ceriatone SSS 100w kit because it is very cost effective to get 95% the way to #004. Like reading your assessments and keeping it real in your previous posts comparing SSS amps.
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