ZOOM
B1 FOUR
$99.99Reference price
A bass multi-effects processor with more than 60 effects and nine amp models. Faithfully emulated heads such as the Ampeg SVT and Fender Bassman 100 pair with IR-based cabinets. Its 65 effects include octaver, bass synth, and fuzz, with up to five in use at once. A 30-second looper and 68 rhythm patterns are built in, and four AA batteries power roughly 18 hours of use.
An entry-class bass multi with amp models and a looper
A multi-effects processor combining more than 60 bass effects, nine amp models, a looper, and a drum machine in one unit. Guitar Lab downloads expand the effect library, and battery power lets it run anywhere.
Nine amp models and 60-plus effects
Nine amp models faithfully emulate hardware such as the Ampeg SVT, Fender Bassman 100, and Aguilar DB 750. The 65 effects include octaver, bass synth, and fuzz, with up to five running simultaneously in any order.
Looper and drum machine
The 30-second looper syncs with the built-in drum machine, overdubbing effected phrases to build low-end grooves solo. 68 rhythm patterns span rock to jazz, including simple metronome-style patterns.
Two live modes and output EQ
MEMORY mode preselects distant patches silently before committing, while STOMP mode toggles individual effects within a patch by footswitch. The output EQ and four knobs quickly match the tone to the room.
Power and expansion
Four AA alkaline batteries deliver roughly 18 hours of operation, with optional AC adapter or USB bus power. The tuner supports Low-B/Hi-C tunings, and the Guitar Lab app for PC and Mac adds effects and patches.
- Nine amp models faithfully emulating the Ampeg SVT and more
- 65 effects including octaver, bass synth, and fuzz
- 30-second looper synced to the drum machine
- MEMORY mode with preselect plus STOMP mode
- About 18 hours on four AA batteries
- Tuner supporting Low-B/Hi-C tunings
Videos
Specifications
| Manufacturer | ZOOMOpens in a new tab |
|---|---|
| Product | B1 FOUROpens in a new tab |
| Type | Multi-effects |
| Functions | Amp simulator, Fuzz, Octaver, Synthesizer, Wah, Looper, Tuner |
| Release year | 2019 |
| Power | AC adapter DC9V center-negative, 500mA (ZOOM AD-16) / 4x AA batteries, approx. 18 hours of operation (alkaline, LCD backlight off) |
| Dimensions | W130 × H42 × D156 mm |
| Status | Available |
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