The Seymour Duncan SFX-11 Twin Tube Blue is the stompbox for the no-compromise blues player seeking a range of bluesy tones from classic Chicago raunch to modern high-gain sounds.

The Twin Tube Blue is a high-quality, 2-channel guitar preamp voiced especially for the blues”modern blues, Chicago blues, Texas blues, and classic rock. Unlike its Twin Tube brethren, the guitar pedal features a duet of premium, mil-spec, subminiature, USA-made Philips-Sylvania 6111 dual-triode tubes. These tubes are voiced similar to a familiar 12AU7.

This used pedal is in excellent and will ship with the original packaging.

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