![]() ![]() We use chassis mount type power tube sockets hand bolted, hand soldered, and then hand wired to the PCB. There's even a spare 12AX7 mounted inside the cabinet in a nifty tube pin straightener.ġ - All components are hand soldered, with over 100 hand soldered connections on the tubes sockets aloneĢ - All transformers are custom designed and made exclusively for Groove Tubesģ - GT S30 amps are all tube, Class A circuitry designed specifically for use with the 6L6/KT66 family of power tubesĤ - We use only double sided, double thick PC boards with double thick traces. GT gear seems to find favor with recording studios and session musicians.Įxcellent design and construction with many useful features: Pre Bias control allows adjustment of preamp bias voltage, parallel effects loop with mix control, tube driven Accutronics reverb, footswitchable gain boost, selectable impedance taps for 8 and 16 ohms. I searched around and couldn't find another one for sale anywhere. ![]() Hard to find these days as these amps are now better understood and appreciated than they were back then. Here we have a circa 2003 Groove Tubes Soul-O 30R in very fine condition. ![]()
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