B1X Four

The Zoom B1X Four is a bass multi-effects processor designed to provide a comprehensive range of features and functionality for bass players. It offers over 70 built-in effects and 9 amp models, allowing for a versatile range of sound shaping. The pedal supports up to 5 effects to be used simultaneously, providing ample room for creative exploration.

Key Features:
- Over 70 built-in effects
- 9 amp models for simulating classic rigs
- Up to 5 effects can be used simultaneously
- Built-in expression pedal for control over any parameter
- Looper for recording up to 30 seconds / 64 beats of CD-quality audio
- 68 built-in rhythm patterns
- Standard guitar input, aux input for external audio players, and amp/headphone output

Technical Specifications:
- Maximum number of simultaneous effects: 5
- User patches: 50
- Sampling frequency: 44.1 kHz
- A/D conversion: 24-bit, 128× oversampling
- D/A conversion: 24-bit, 128× oversampling
- Signal processing: 32-bit
- Display: 128x32 dot matrix LCD
- Input: Standard mono phone jack, rated input level: -20 dBu, input impedance (line): 470 kΩ
- AUX in: Stereo mini jack, rated input level: -10 dBu, input impedance (line): 1kΩ
- Output: Standard 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)
- Power: 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)
- USB: USB MIDI, USB Micro-B, power can also be supplied through the USB port

Physical Dimensions:
- Height: 156 mm (D) × 216 mm (W) × 52 mm (H)
- Weight: 610 g (excluding batteries)

The Zoom B1X Four is a versatile and powerful tool for bass players, offering a wide range of effects, amp models, and rhythm patterns in a compact and user-friendly package.