Crate VTX65B Combo Guitar Amplifier with FX (65 Watts, 1x12 in.) The VTX65B features full three-channel operation with independent gain, level and tone shaping circuits. The DSP section has 15 multi-effects including chorus, flange, phase shift, vibrato, octave down, touch-wah and reverse wah and also has 15 delays with adjustments. Each of these can be set for depth, and then the Tap button on the front controls speed.