Take your low end to new heights with the ZB1XFOUR multi-effects bass pedal from Zoom. Featuring over 70 traditional and boutique effects—including right modulation, pitch-shifting delay, and even sitar simulation—you'll discover sounds that inspire your rehearsals and performances. 9 programmed classic amps and cabinets from Fender, Ampeg, Aguilar and more deliver big stage sound from this compact pedal. ZB1XZOOM also includes access to ZOOM Guitar Lab's library of downloadable artistic patches and effects that are easily managed and backed up for experimenting with endless creative combinations. Drums are also no worry with 68 great, built-in rhythm patterns in a variety of time signatures to play alongside. Record and arrange up to 30 seconds of playing with the built-in looper, while the Auto Save function ensures you never lose your latest creation. Two performance modes seamlessly switch up sounds during live shows—PRESELECT for patch to patch incorporating and STOMP for easy on and off control with the tap of your foot.The built-in ZOOM's Expression Pedal provides extra control over effects, such as volume, wha, delay, and pitch. Powered via USB bus power or four AA batteries, ZB1XZOOM fits nicely on stage or on your desktop for precision crafting of your perfect sound.IncludesQuick GuideAA size (LR6) battery x 4FeaturesB1X FOUR offers over 70 built-in effects9 amp models for simulating classic rigsUp to 5 effects can be used simultaneously, chained together in any orderBuilt-in expression pedal for control over any parameter (B1X FOUR only)Looper for recording up to 30 seconds / 64 beats of CD-quality audioZOOM Guitar Lab software for creating, editing and managing effects and patches68 built-in rhythm patterns which can be used in conjunction with the Looper50 memory locations for storing user-created patchesAuto Save function for automatic saving of all patch parametersPre Select function allows silent patch selection while the current patch remains operationalOnboard chromatic tunerInput jack accepts standard mono bass guitar cable (both active and passive instruments supported)Auxiliary input jack for connection of personal music playersOutput jack for connection to amp or headphonesLightweight and small enough to fit in your gig bagEasily integrated into any existing pedal boardRuns on 4 AA batteries, with alkaline battery life of 18 hoursUSB port for firmware updates, power and connection to ZOOM Guitar LabSpecificationsMaximum number of simultaneous effects: 5User patches: 50Sampling frequency: 44.1 kHzA/D conversion: 24-bit, 128× oversamplingD/A conversion: 24-bit, 128× oversamplingSignal processing: 32−bitDisplay: 128x32 dot matrix LCDInputsINPUT: Standard mono phone jack, Rated input level: -20 dBu,Input impedance (line): 470 kΩAUX IN: Stereo mini jack, Rated input level: -10 dBu, Input impedance (line): 1kΩOutputStandard stereo phone jack (combined line/headphone)Maximum output level: Line +2 dBu (10 kΩ or more output impedance)Headphones 17 mW + 17 mW (32Ω load)Input S/N: 120 dBNoise floor (residual noise):-97 dBuPower :AC adapter: 9V DC 500mA center negative (ZOOM AD-16)4 AA batteries (about 18 hours continuous operation time when using alkaline batteries with the LCD backlight off)USBUSB MIDI, USB Micro-BPower can also be supplied through the USB port.When using a cable designed only for power, other USB functions cannot be used.Dimensions: 156 mm (D) × 216 mm (W) × 52 mm (H)Weight: 610 g (excluding batteries) Zoom ZB1XFOUR B1X Four, Bass Guitar Multi FX Processor W/ Expression Pedal.