ELECTRO-HARMONIX BLACK FINGER Optical Tube Compressor

Unlike other "tube hyped" products on the market, which use 9 to 50 volts, the Black Finger's toroidal transformer allows for a full 300 volts of swing, preserving the attack while providing the warmest compression imaginable. Fantastic sustain, and a must for any amplified acoustic guitar.

• True bypass using a mechanical relay
• Two different light sources (LED and lamp) offer uniquely varied and professional compression techniques
• Super warm, sweet musical tone
• Input and output gain controls
• Professional portable compression
• Two Electro-Harmonix 12AX7 vacuum tubes included
• 12AC-1000 power supply included