This Gibson offers smooth, robust clean tones with both ample warmth and sparkling top end clarity. The lows are full and rich, and there’s lots of harmonic complexity in the upper midrange. Pushing the amp hard at higher volumes delivers a touch of compression and cascades into overdrive, with plenty of ambient splash provided by the spring reverb on Channel Two. The second channel also features tremolo, with a strong pulse and great depth. Each channel has two inputs, with independent Volume, Bass and Treble knobs, and Channel Two also has Reverberation, Tremolo Depth and Tremolo Frequency controls.