Boss Releases EX-4 Multi-Effects Pedal
The new effects processor offers 120 distinct sounds and 256 total preset slots in a compact metal chassis.
Updated on Oct. 23, 2026 in Consumer Electronics
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Boss has officially released the EX-4 Effects Expander, a compact multi-effects pedal equipped with 120 onboard effects. The unit features 128 factory presets alongside 128 user-defined slots.
Why it matters
The EX-4 provides musicians with a flexible signal processing solution that supports both serial and parallel routing configurations. Its small footprint and comprehensive connectivity options aim to integrate seamlessly into diverse pedalboard setups.
The device features a 2.4-inch display, stereo inputs and outputs, and MIDI connectivity housed in an 800g metal chassis. It requires 300mA of power at 9v and includes a USB-C port for external integration.
The players
Boss
Boss is a division of the Roland Corporation that specializes in high-quality effects pedals and signal processing equipment for guitarists and bassists.
The details
Users manage sound parameters through three encoders aligned with the screen, which supports five preset signal paths. The hardware measures 117x138x63mm, allowing for compact placement on performance boards.
Timeline
The Boss EX-4 review was published on October 23, 2026.
The Tech Race
The EX-4 follows the industry trajectory of miniaturizing powerful digital signal processing into portable, stomp-ready formats. This release positions Boss against other compact multi-effect units that are increasingly replacing traditional analog pedal chains.
Musicians can streamline their stage or studio rigs by replacing multiple individual pedals with this single 800g unit. The inclusion of 128 user presets allows for immediate recall of specific sound chains during live performances.
The takeaway
The EX-4 demonstrates how modern guitar technology is prioritizing versatility and space efficiency for the performing musician. Users should consider how the unit's parallel routing capabilities can replace complex, daisy-chained analog setups.
Further reading
Explore the latest innovations in audio gear by visiting the Consumer Electronics section.
Source note: This article includes information reported by Guitarworld.
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Do you trust modern digital multi-effects pedals to be as reliable as traditional stompboxes?
