Details The BDI21 combines the features of an active DI (direct injection) box with our proprietary tube emulation circuitry. Its like having a truckload of vintage tube amps right at your toes! The Blend control allows you to mix the amount of tube emulation you want with your direct bass signal. And if you just want your instruments straight, pure tone just step on the switch and the ADI21 functions as a superb active DI box. Features: Analog modeling bass preamp/stompbox with DI recording output This Behringer product has been designed to compete head to head with leading products on the market Authentic V-TONE modeling technology capable of dialing up big vintage tube tones, funky slap sounds, crunchy distortions and all in between Provides a truckload of great amps in a single stomp boxfrom traditional bass amps to modern overdriven amp tones that would typically require a multitude of effects units Authentic tube emulation circuitry can be mixed with the direct bass signal via blend control Presence control for definition and upper harmonics plus ultra-musical 2-band EQ specifically tuned for bass guitars Dual DI mode for either direct recording output with tube emulation or standard active direct injection box in bypass mode Output available on ” TS or balanced, gold-plated XLR connectors Ground lift switch eliminates typical ground loop problems Runs on 9 V battery or the Behringer PSU-SB DC power supply (not included) Designed and engineered in Germany