Brand

Zoom

ZOOM CORPORATION is a Tokyo-based Japanese maker founded in 1983. After developing audio components and rhythm equipment, it released the compact 9002 multi-effects processor in 1990 and later the popular 505 Guitar. Today its guitar, bass and acoustic processors range from small practice units to larger floorboards. JustPedals listings include the G1X FOUR and B1 FOUR, plus the A1 FOUR for acoustic instruments and its expression-pedal version. Compare each model’s instrument focus and expression controls: similarly sized Zoom units can be built around different effects and playing needs.

Category

Multi-Effects Pedals

A multi-effects processor combines several effect algorithms and signal-routing stages in one unit. Its sound depends not only on the individual models but on their order, parallel or serial routing, processing resolution and available control. Preset structure, switching gaps, foot control, expression assignment, amp or cabinet modelling, USB audio and MIDI determine how completely the processor can replace separate pedals.

Tags

Digital

Converts the signal or control process into numerical data for algorithmic processing. Digital designs can provide precise timing, long memory, complex routing and repeatable presets; sample rate, conversion, internal resolution and latency influence fidelity and response.

IR Loader

Convolves the signal with an impulse response, a captured measurement of a cabinet, speaker, microphone, room or other linear system. File length, sample rate, latency, storage and routing determine the detail of the captured response and how flexibly it can be combined.

MIDI

Sends, receives or responds to Musical Instrument Digital Interface messages rather than carrying the instrument audio itself. Program changes recall presets, continuous controllers move parameters, and MIDI clock or transport messages synchronise timing between devices.

Stereo

Processes, creates or passes two audio channels. True stereo preserves separate left and right inputs, while mono-to-stereo effects generate spatial differences internally; routing, phase behaviour and whether trails remain stereo determine the resulting image. Some outputs sum to mono when only one socket is connected, which can change level or modulation depth.

USB

Provides a Universal Serial Bus connection for power, audio, MIDI, firmware or editing data. The supported USB class and connector do not by themselves show its purpose; channel count, sample format, host compatibility and power demand define the actual function.