3/24/2023 0 Comments Fender bandmaster vmThere's a different plate structure in there and the base is plain and no manufacuturer markings under the white GT label. Also the two 6L6's that came with mine don't appear to be the past GT labelled Sovtek 5881 wxt that were historically in HRD's. But the tone of the 70/80 is better for my taste. Only found 3 speakers that fit: the stock 70/80, Eminence Lil Texas and Tonkerlite both neos. Also a bummer that the speaker changes are very limited for the Deluxe. However, I really like the sound (minus the weaknesses) which is why I picked these up. I've done this on both my Bandmaster VM and Deluxe VM and both have the exact same issue, so I'm sure now that it's spec. Tried changing the tubes to better grade and got vibration ring and couldn't get bias above 30mA per tube and for JJ's that is extremely cold 347v. So Fender has it running very cold and when you crank the bias adjustment all the way, the most you can get is about 32mA per tube, which for a 6L6 347v is still cold. At 347 plate voltage that computes to around 13w for each power tube. Looking at the Fender schematic it requires 54mv at the bias test points which only reads about 27-29mA per tube. 70/80 speaker (98db) but then I checked the bias (too low) as it was getting crossover distortion (a month and a couple of gigs after I bought it). I've got both the Deluxe VM, same amp in a combo and BMVM. I'm glad that someone else hears the same as I do.
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