The Pedal Series is pedal sized and range from the 48 Volt Phantom powered interface to the 45 watt pedal sized power amplifiers. The InterBlock 45 provides a remarkably complete tool set for direct recording and PA interface, with headphone driver and a highly useful 33/45W power amp built right in. The InterBass provides the same tool set for bass players, with specialized dynamic processing and targeted EQ controls adapted to the range of the bass guitar. The Phantom Block is the ultimate direct interface for guitar operating on 48 volts, 9 volt battery or 9 volt DC supply. EVERY performing musician should have one for backup or direct recording.