Black Finger

Optical Tube Compressor
Dual tube magic! Using the same professional-grade techniques as the most revered, vintage, high-end studio compressors, the Black Finger delivers truly professional performance compression. 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.

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From the Blog
Posted 1/11/2012



Christopher R. Montgomery created an original tune using the EHX 2880 Stereo Multi-Track Looper. He also used an EHX Black Finger on all his guitar tracks, a Stereo Memory Man w/Hazarai and a Freeze (2:33).

Posted 4/26/2011

Oliver Doering plays a beautiful, old. 1951 Gibson ES-5. The gear used includes an Electro-Harmonix Black Finger Optical Tube Compressor known for its super warm, sweet, musical tone.

Posted 10/19/2009

Welcome to the fifth installment of EHX Effectology. In today’s episode Genius sound producer Bill Ruppert has produced another amazing “Effectology” sound clip. Using only Electro-Harmonix pedals and NO synthesizers, Bill recreated of Kraftwerks’s classic “Autobahn.”

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

Posted 9/21/2008

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Quick Specs
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
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