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Used and in great condition, the SHIFT LINE FLEX TUBE A+ is a versatile bass effect pedal that combines rich analog-style tone with modern functionality. This preamp and overdrive unit delivers warm tube-like saturation and dynamic response, perfect for shaping your signature sound. Featuring dual channels, 3-band EQ, and a cabinet simulation option, it gives you a flexible setup for both live performance and studio recording. The pedal accepts standard 9V DC power and offers a rugged, road-ready metal chassis ensuring durability. Whether you're looking to add punch to your low end or create full-bodied overdrive tones, the FLEX TUBE A+ delivers dependable performance and sonic depth.

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