The BOSS BB-1X Bass Driver is a premium stompbox designed to make your bass sound bold and punchy. More than just a standard compact bass pedal, the BB-1X is like a preamp, a crucial component in creating quality sound. It captures the essence and subtle nuances of your bass, amp, and playing and emphasizes all their best characteristics.Incorporating BOSS’ latest MDP technology, the BB-1X delivers a wide range of superior sounds, from natural clean tones to heavy distortion. It adapts and responds to any playing style or register, but never loses the body and core tone of your instrument. The BB-1X’s natural-sounding distortion preserves the high definition and dynamics reflected in the finest details of your sound.The BB-1X provides a clear sonic outline to enhance your sound, yet never muffles your low end. With the Blend knob, you can easily adjust your tone by mixing the direct signal with the effect sound. Low, High, and Drive knobs offer an extremely wide range of sound creation. These controls not only shape the frequencies, but change the characteristics of the tone as well. The Line Out jack on the BB-1X goes beyond a standard DI out, providing a newly crafted and enhanced direct sound for reaching larger audiences through a PA system. The “1X” in the BB-1X’s name represents the pedal’s premium look, sound, and feel. Whether you’re defining your standard tone or spicing up your sound for soloing, the BB-1X Bass Driver is a must-have for every modern bassist.Specifications:Nominal Input Level: -20 dBuInput Impedance: 1 M ohmNominal Output Level:OUTPUT jack: -20 dBuLINE OUT jack: -20 dBuOutput Impedance:OUTPUT jack: 1 k ohmLINE OUT jack: 600 ohmsRecommended Load ImpedanceOUTPUT jack: 10 k ohms or greaterLINE OUT jack: 600 ohms or greaterControls:Pedal switchLEVEL knobBLEND knobLOW knobHIGH knobDRIVE knobIndicator: CHECK indicator (Serves also as battery check indicator)Connectors:INPUT jackOUTPUT jackLINE OUT jack (1/4-inch TRS phone type)AC adaptor jack (DC 9 V)Power Supply:Alkaline battery (9V, 6LR61) or Carbon-zinc battery (9V, 6F22)AC adaptor (sold separately)Current Draw: 54 mAExpected battery life under continuous use (These figures will vary depending on the actual conditions of use.): Alkaline: Approx. 6 hoursAccessories:Owner's ManualLeaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")Alkaline battery (9V, 6LR61)Option (sold separately):AC adaptor (PSA series)Size and Weight:Width:73 mm2-7/8 inchesDepth:129 mm5-1/8 inchesHeight:59 mm2-6/16 inchesWeight:450 g0 lbs. 16 oz. Boss BB-1X BassDriver Bass Preamp Effects Pedal.