Product information at 09/10/2026, 22:47

Boss EX-4 Effects Expander


Boss EX-4 Effects Expander

349.00 €

incl. VAT | incl. Shipping Cost

Availability  :  is ordered
    Delivery time: 26 ‐ 33 business days (Germany)
Rating  :  No review available
Brand  :  Boss
Model  :  292584
Shipping Weight  :  0.00 kg
Unit  :  piece

Boss EX-4 Effects Expander Product Details

Description

BOSS EX-4 Effects Expander

Are you looking for a compact effects unit that adds a wide selection of professional BOSS sounds to your pedalboard without taking up much space? The BOSS EX-4 Effects Expander is a high-quality effects pedal featuring 120 BOSS effects, up to four effects that can be used simultaneously, a color display, flexible footswitches, and versatile connectivity options.

The BOSS EX-4 Effects Expander is designed for guitarists, bassists, and other musicians who want to cover a variety of songs and genres while having quick access to professional sounds. With its compact housing, intuitive controls, and extensive memory options, it’s a versatile addition to modern pedalboard setups.

Extensive effects library in a compact format

The BOSS EX-4 Effects Expander offers 120 high-quality BOSS effects. It covers key effect categories such as overdrive and distortion, modulation effects, delay, and reverb. It also includes specific bass effects as well as special BOSS effects like Slow Gear, Slicer, and other creative sound tools.

Up to four effects can be used simultaneously, including multiple instances of the same effect. This allows you to create both simple effect combinations and complex signal chains. Effects can be arranged in series and reordered as needed.

Flexible Effect Chains and Creative Control

With the BOSS EX-4 Effects Expander, you can create serial and parallel effect setups, including wet/dry options. Standalone function blocks such as Foot Volume, Noise Suppressor, Send/Return, and Divider/Mixer can be placed anywhere in the effects chain.

The built-in effects loop allows you to connect external pedals in series and arrange them freely within the EX-4 effects chain. Additionally, a global EQ is available for overall tone shaping.

Color Display, FX Buttons, and Foot Switches

A 2.4" full-color display clearly shows the entire effects chain, individual effect blocks, editing functions, and menus. Separate FX buttons allow you to enable and disable effect blocks with a short press. A long press opens the editing parameters.

The two rugged multifunction footswitches with split LEDs can be configured system-wide or individually per preset. Possible functions include turning effect blocks on and off, navigating up or down through presets, master bypass, and tap tempo.

Presets, Gear Suite, and Operating Modes

The Boss EX-4 Effects Expander offers 128 presets for guitar and bass, as well as 128 user memory slots for your own sounds. Memory mode is ideal for using effect presets, while manual mode supports classic floor pedal operation.

The Gear Suite feature enables quick sound design. Ready-to-play effects can be accessed directly, and favorite parameter settings can be saved for each effect type. Seamless memory slot switching with fully decaying delay and reverb is possible with certain effect configurations.

Connections and Integration into Your Setup

The Boss EX-4 Effects Expander offers a total of four audio connections for mono or stereo operation. If needed, two connections can be used as an effects loop to flexibly integrate external pedals.

For additional real-time control, two footswitches or an expression pedal can be connected. TRS MIDI input and output allow for the integration of MIDI pedals, switching systems, and external metronomes.

Recommended Purchase

The BOSS EX-4 Effects Expander is a great choice for musicians who want to expand their pedalboard with a wide variety of effects without having to use many individual pedals. In particular, the 120 BOSS effects, up to four simultaneous effect blocks, the flexible effects chain, the effects loop, and the extensive footswitch control make the unit highly versatile.

If you’re looking for a compact effects unit with professional sounds, a color display, 128 presets, 128 user memory slots, and versatile mono/stereo integration, the BOSS EX-4 Effects Expander offers a powerful solution for pedalboards, the stage, and the studio.

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