Rockbox Amplification Rockbox Rosetta A two channel, expressive, articulate and revealing amplifier for the professional musician. Available in 50 and 100 watt models. Rockbox Carlotta A single channel, no frills hot rod amplifier for the tone purist. Rockbox Custom Amplification One-off custom amplifiers built to your specifications. Rockbox Speaker Cabinets Top quality, finger-jointed cabinets. Many configurations and speaker choices available. Rockbox Accessories Select accessories to complement your favorite rig.