More sounds within reach with the Boss EX-4 Effects Expander

Combine classic effects and flexible control

With the EX-4 Effects Expander, BOSS introduces a compact solution for guitarists and bassists looking to expand their pedalboard without adding extra individual pedals. The effects processor provides access to a broad collection of BOSS effects, allowing you to combine multiple effects simultaneously within one streamlined stompbox. The EX-4 caters not only to musicians who love experimenting with sound, but also to players who need to switch quickly between different tones during rehearsals, gigs, or studio sessions.

Effects processor built for seamless integration

Alongside its extensive effects library, BOSS has placed a strong focus on ease of use and integrating into existing rigs. Thanks to the colour display, programmable footswitches, and the Gear Suite feature, sounds can be recalled and adjusted in an instant. External pedals can also be easily inserted into the signal chain, while MIDI support offers expanded control for larger pedalboards and advanced setups. With its compact footprint and versatile performance, the EX-4 is a valuable upgrade for musicians seeking greater control and sonic variety from their current rig.

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