All Carvin amps used the same control configuration, which was a 2-channel setup, which included a 2-band parametric EQ on each channel, as well as depth, speed and reverb on channel 1.
The model #T-11 Transistor Amp (above) was available separately, and was also a part of the Twin Master and Concert Series stacks. It had a nominal rating of 60W, with 120W peak. Price on this head was $119.90, and the Hammond Reverb was an additional $29.90. Also available was the model #T-12, which was the same, but was rated at 80W RMS and 160W peak, and sold for $139.90.
The Carvin Twin Master used the #T-12 80W head and the #2-15T cabinet, which was loaded with 2 15" Jensen speakers and a compression horn tweeter. The Twin Master sold for $299.90, plus $29.90 for the optional Hammond Reverb unit. The #2-15T cabinet could also be purchased separately for $159.90.