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Hello TRB Club folks, I posted a question about installing 3rd party 2-wire pickups (Fender, in this case) with a stock TRB pre-amp here: https://www.talkbass.com/threads/2-wire-pickups-into-a-yamaha-trb-pre-amp.1638376/ I am referencing my post here for visibility, hoping some knowledgeable...

Hi everyone, I was hoping to replace the stock pups on my Yamaha trb1005 with a Fender ultra noiseless vintage jazz bass V pickup set, while keeping the stock Yamaha pre-amp. With the stock pups being 3-wire: active coil (red) + dummy coil (white) + ground, and the jazz pups being 2-wire: hot...

I'm in a similar situation, new JSV3, weak pup's and very hissy preamp. For the price (I got a deal at $199), I like it enough to keep and eventually upgrade the electronics after I play a few more gigs to get the funds. In the meantime, I'm experimenting with passive mode to at least get rid of...

Ah. Thanks for explaining!

Update: I replaced the tubes last Thursday (thanks B-string for the timely advice!) and now all is well. I get full power from startup. Had to rework my settings a little to find my tones again, all part of the fun. Replaced a Fender Groove Tube in slot 1 and 2 Sovteks with another GT and 2...

Thanks all. So, definitely an issue. I get the same behavior whether in stereo, one side mono (either side), mono bridged, or biamp mode, so I'm thinking it's in the preamp. FWIW, with the lid off when I power it on from cold all 3 tubes do glow right away. I'm thinking I'll pick up some new...

I got a used SVT 4 Pro recently. When I first power it on, the low end is weak. After some time, it kicks in and all is well. At first, it took a few minutes (10-15). Lately, it's taking longer and longer (20-30 minutes). In the owners manual under "Thermal Considerations" it says "When the...