Zoom B2 Four Amplifier and FX Emulator Pedal

Maximize the capabilities of your bass with the B2 Four from Zoom, a cutting-edge amplifier emulation and effects pedal tailored for electric bass guitars. This pedal simulates six legendary direct inputs and employs Zoom’s advanced multi-layer impulse response technology, offering an exceptional all-in-one solution for bassists of all genres, featuring an extensive selection of amplifier, preamplifier, and effect models across 250 presets and 300 customizable patches.

The B2 Four offers 104 extensive effects, allowing users to layer up to five effects simultaneously for distinctive patches. It features high-quality 24-bit A/D and D/A conversion, including 128x oversampling and 32-bit DSP for superior resolution effects. Additionally, the B2 Four is equipped with a variety of I/O options, such as a balanced XLR output with a ground-lift switch to eliminate noise, a 1/4″ input with selectable impedance, a 3.5mm aux input, a robust headphone output, an expression control input, and USB-C connectivity. This enables the B2 Four to function as a 2×2 audio interface, connect to the Handy Guitar Lab for B2 Four iOS app for patch and effect expansion, and utilize an optional power source.

Jam Packed with Effects and Functions

Create patches using 104 effects, featuring models of renowned boutique effects and preamps. Combine up to 5 effects and amplifiers at once to design your personalized patches. Engage in looping, grooving, jamming, and rehearsing with B2 Four. The integrated 60-second looper enables you to craft grooves, while the 68 beats from the built-in rhythm machine serve as an ideal practice partner.

Built for Live Performance

When you need to plug directly into the house PA, the B2 Four has you covered. It features six DI models that recreate the tone of world-class direct boxes:

• Tube 1: rich harmonics and thick low frequencies
• Tube 2: clear attack and tight low frequencies
• Tube 3: clear and glossy sound
• Solid State 1: moderate compression and sharp tones
• Solid State 2: clear tone and little distortion
• Solid State 3: elevated mids and low treble, meant to replicate the Motown sound

Rich Amp and Cabinet Models

Every amplifier model is constructed using Zoom’s cutting-edge multi-layer impulse responses to emulate the tonal qualities of traditional amplifiers and speaker cabinets. The impulse responses were recorded from cabinets at three distinct volume levels and are triggered according to the bass’s volume. With 250 presets preloaded, these patches enable bassists to replicate the sounds of well-known songs spanning from the 1950s to the present.

I/O Options

The balanced XLR output facilitates a direct connection to a PA system or interface, whereas the stereo 1/4″ outputs are suitable for connecting to an amplifier. The 1/4″ instrument input features a switch that allows for impedance adjustment between 1 and 10 megohms, resulting in a clearer tone for upright basses that utilize piezo pickups.

Additionally, a 3.5mm aux input enables jamming along with an external track, and the expression input allows for the connection of an external control pedal to adjust various parameters. The 3.5mm headphone output is robust, delivering 33mW per channel into a 32-ohm load.

USB Connectivity

Utilize the B2 Four as a 2-in / 2-out audio interface to link with a computer or smartphone, incorporating your preferred effects and amplifier models. With a growing collection of patches and effects, bassists can further enhance their sound using the Handy Guitar Lab for B2 Four application (iOS only), which can be acquired from the Apple App Store.

List of Amp and Preamp Models

Preamps

• Clear Drive: this original Zoom Clear DRV preamp uses a linear phase filter in the distortion path. As a result, phase interference is eliminated during dry mixing, providing a clear drive.
• Super-Low Preamp: a Zoom original preamp for super-low sound. Using missing fundamental acoustic science, the SpLoPre model is equipped with a bass enhancer, which emphasizes the low end of every note. With a low EQ and a negative one octave sound, a super-low-end tone is produced.
• Djent Preamp: an original Zoom preamp recommended for Djent sounds. This preamp combines an undistorted low-end with a strongly distorted high-end to provide a crisp, intense distortion, even with a down-tuned 5-string bass.
• 1073 Preamp: a thick, warm sound of a vintage mic preamp with transformer distortion.
• Solid Preamp: modeled after a console’s solid-state mic preamp, the SolidPre delivers tight sounding harmonics with the ultralow frequencies cut out.

Amps

• Sun CB: features clean bass and bright high frequencies.
• Monotone: A solid-state combo amp perfect for jazz, featuring a round low-mid range with a calm overall tone.