I own a modified 1971 V4B, modded to accept KT66 power tubes
I have owned a modified 1971 V4B that has been retubed with KT66 power tubes. The simple, yet versatile control layout and great innate tone make this one of the greatest bass amps of owned to date. The two channels are great for running a wet and dry effect signal as well. The amp is paired with two custom LDS cabs, each fitted 1x15 and 2x6 custom hemp cone speakers made by PMR. Every bass player can find something to love about this amp!
this was the loudest amp I've ever owned... like a louder VT40 without reverb. Not voiced specifically for bass, at least my70s version wasn't. Good bass amp, great guitar amp if you wanted a loud clean sound. A clean sound so commanding it eats a twin for lunch. Only a Hiwatt or Sunn 2000s squeezes more out of 4 power tubes. Slightly different preamp tube compliment than a vt40 so easier to retube as I recall. But pulling 2 power tubes its still louder and cleaner than a vt40 or v2. A beast. I would owner another one.