11/22/2023 0 Comments Fender musicmaster bass amp mods![]() No such problem with the MM two inputs, two knobs, one light. The Marshall sits on a Musician's Friend Deluxe Amp Stand, but that's partly so I can see the dang controls better. Or, like I said, dump out the contents of the Musicamaster chassis and mod happily away. Mods for my Musicmaster Bass Amp JimmyZ 1 2 3 Next 1 JimmyZ Tele-Meister Joined Posts 275 Location Anderson, Indiana I recently bought an old Musicmaster Bass amp from a fellow TDPRI member and I'm going to re-cab it and would like to know what can be done to ehnance the function of the single tone control. A lot of musicians want a Champ with a 12' speaker, the quick way to accomplish that is to stuff a Champ chassis in a Musicmaster cabinet. I may also try an Ampwedge Polyurethane Amplifier Isolation Floor Wedge for the MM. That makes it one of my favorite amps to gut and mod. Unless I get several opinions saying the Torres mod is a must-have, I think I'll leave mine stock, too, at least until I "test drive" it some more. (I can clock how fast the cat and dog leave the room for either one. Okay, it's kind of "apples and oranges," but I think I'll do an informal test to see how the 12 watts of the MM compares to the 30 watts of the Marshall. Yep, and like you say, it's kind of a "buried treasure."Įverything else I've owned/used so far has been solid state, and the only one I have that approaches it in size (weight) is my Marshall MG30DFX. Its not necessarily Volts that you need for a 6L6 upgrade, but amperage. The amp doesnt have a cap can, it has a dual firecracker and a single cap on the board. I just love when I find somthing like this that isn't on everyones "hot list" at the moment! It's a jem. The weak point of the MMB is the power transformer, its puny. ![]() For now theres a 1 Amp fuse in the plug.I looked into the mod thing but honestly it sounds great stock. The only thing left to do is perhapse install an in-line fuse holder as for some strange reason Fender decided it didn't need one. The history of the Musicmaster stretches back to the mid-50s, when it was introduced as one of Fenders first-ever 3/4 scale student model guitars. I must get back into recording again soon, and this is the amp to do it with. The Shawn Mendes Foundation Musicmaster is a one-of-a-kind guitar that complements Mendes unique style combining classic Fender tone and exquisite vintage inspired art in one striking instrument. It's definitely a keeper and effects pedals work great too. My mate reckons it's the best Strat sound of all the amps I've got or ever had, including the Twin Reverbs, and I don't disagree. It is loud! There is a hugely improved bass response, a very balanced transparent tone, no hum whatsoever, no strange crackles and a good crunch at full whack. I tested all the passive components and replaced three electrolytics which read well below par, although the main filters read substantially higher than their stated 20uF so I left the orange cardboard cigar in place.Īfter completing the service, the amp plays absolutely brilliantly! What a transformation. ![]() The dates on the transformers and chassis range from 1973 to 1976, which is slightly odd but not unreasonable. The chassis and speaker appeared to be totally original with no sign of any previous work being done. Luckily I located a NOS pair of Brimars just around the corner from me for £10! They turned out to be excellently matched too. A quick check on the valve tester showed the filament was open circuit. I quickly ascertained that one of the differently branded output tubes (an RCA and a Brimar) was not glowing, even after the sockets and pins were cleaned. Oh well, bidder beware! Not all sellers are totally forthright in their description of what they are selling.Īnyway, all was not lost. 141 views, 10 likes, 1 loves, 1 comments, 0 shares, Facebook Watch Videos from Hunn Amplification LLC: 70’s Fender MusicMaster Bass amp mods - yes please interstagetransformer SilverFace. I strummed a few chords and turned up full volume and although it had a good distorted Fendery sound it was very weak and trebly, nowhere near the stated 12 Watts. However, we plugged it in and there was a lot of crackling to which the seller said, "Oh, that never happened before." A quick wiggle of the pre-amp valve and it settled down. ![]() When I went to pick up the amp, I was fully expecting to see a pair of 6v6GT output valves, so was rather surprised to find the smaller bottle 6AQ5 tubes instead. Although there was no picture of the rear of the amp in the listing, there were lots of pictures of the original user manual and circuit diagram that came with it. If you have a look at a Musicmaster Bass Amp schematic and a Deluxe 5E3 first thing to notice is the cap values. What attracted me to this was the unusual use of a transformer for the phase inverter and a pair of 6v6s. The tone stack in these does tend to roll a lot more highs off than your typical Fender amp.
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