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Boss EX-4 Guitar Multi-effect

Name: Boss EX-4 Guitar Multi-effect
Brand: Boss
SKU: 1328263
Price: 349.00 EUR
Availability: BackOrder

Brand: Boss

Product code: 1328263

Guitar Multi-effect Boss EX-4 Guitar Multi-effect

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Boss EX-4 Guitar Multi-effect

Brand: Boss

Product code: 1328263

€349

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Boss EX-4 Guitar Multi-effect

€349

Battery Operation: No
USB: Yes
MIDI Interface: Yes
Built-in Effects: Chorus, Compressor, Delay, Distortion, EQ, FX Loop, Filter, Flanger, Limiter, Modulation, Octaver, Overdrive, Panning, Phaser, Pitch Shifter, Reverb, Rotary, Touch Wah, Tremolo, Vibrato, Wah
DI Output: No
External FX Loop: Yes

Description
Parameters and specifications
Recommended accessories
Questions and answers
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How to choose guitar effects
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€349

Boss EX-4 Guitar Multi-effect

The BOSS EX-4 Effects Expander is a compact multi-FX pedal that adds 120 BOSS effects to any pedalboard without disturbing the rig already in place. Running up to four effects simultaneously from every major category — overdrive, distortion, modulation, delay, and reverb — it expands tonal possibilities while saving precious board space. Utility blocks (foot volume, two noise suppressors, send/return, divider/mixer) and a global EQ slot in anywhere along the chain, and 128 user memories plus 128 presets keep a sound ready for every song in the set.

120 BOSS effects with up to four running at once, including multiple instances of the same effect
Utility blocks (foot volume, two noise suppressors, send/return, divider/mixer) plus a global EQ for total chain control
2.4-inch color graphic LCD with dedicated FX buttons and dual multi-function footswitches for hands-on editing
24-bit AD conversion with Adaptive Focus method, 32-bit DA conversion, and 32-bit floating-point processing for clean signal

BOSS EX-4 Effects Expander — A New Dimension to Your Pedalboard

This compact multi-effects processor widens any pedalboard's range without changing what already works. It adds 120 BOSS effects spanning overdrive, distortion, modulation, delay, and reverb, plus bass-tuned effects and BOSS originals like Slow Gear and Slicer. Built for guitarists and bassists covering many songs.

What Sets the EX-4 Apart

The Gear Suite feature dials in professionally tuned sounds for each effect type with a single knob, cutting setup time between songs. A 2.4-inch color graphic LCD shows the entire signal chain, with FX buttons that change color to match the active block.

Effects Engine and Signal Processing

Signal processing runs at 32-bit floating point with 24-bit + AF method AD and 32-bit DA conversion at 48 kHz sampling.

Effects Library: 120 types spanning overdrive, distortion, modulation, delay, reverb, plus bass-tuned effects
Simultaneous Effects: up to 4 (FX1–FX4) plus 6 utility blocks (divider/mixer, send/return, foot volume, two noise suppressors, global EQ)
Processing: 32-bit floating point with 24-bit + AF method AD and 32-bit DA conversion

Memory, Interface, and Control

Storing sounds is straightforward with 128 user memories alongside 128 presets. The control surface combines a color graphic LCD with dedicated FX buttons, three parameter knobs, and dual multi-function footswitches.

Memories: 128 user + 128 preset — Manual and Memory modes for stompbox-style or preset-based operation
Display: 2.4-inch color graphic LCD (320 × 240 dots) showing the full signal chain
Footswitches: dual multi-function with color LED indicators for on-stage feedback

Connectivity and Physical Footprint

The EX-4 integrates into almost any rig through four 1/4-inch audio jacks supporting mono or stereo operation, with two configurable as an effect loop.

Audio I/O: 4 × 1/4-inch phone type — mono/stereo with flexible effect loop routing
MIDI: TRS Miniature phone type IN/OUT plus CTL1, CTL2/EXP jack and USB Type-C(R)
Dimensions: 117 × 138 × 63 mm (W × D × H) — Weight: 800 g, powered via PSA-S series AC adaptor at 300 mA

I have a remark regarding the description

Тype: Multieffect

Multieffect is a device that combines multiple effects into a single unit. It allows players to switch between various sound effects - such as distortion, delay, reverb, modulation, or dynamics - and often includes the ability to create and save custom presets. Multieffects are popular for their versatility, compact design, and convenience in both live performance and studio use.

Controls

Exit
Select Knob
Menu
Write
Effect On/Off
Parameter Knob
Footswitch
Vocal
Value

Inputs

Jack 6,3 mm
Stereo (L/Mono, R)
USB-C
MIDI IN Jack 3,5 mm TRS
Return
FS/Expression

Outputs

Stereo (L/Mono, R)
Jack 6,3 mm
MIDI OUT Jack 3,5 mm TRS
Send

MIDI Interface: Yes

It supports MIDI, allowing you to connect and communicate with other MIDI-compatible devices. This feature extends control and integration into the larger music environment, increasing flexibility and creativity in music creation.

Footswitch Input Port: Yes

It has a footswitch input that allows you to control various functions of the unit without using your hands. With this feature, you can easily switch effects, channels, or other settings while playing, which is ideal for live performances and smooth control without interrupting your game.

External FX Loop: Yes

The Effect Loop makes it easy to connect external effects. This feature provides the ability to add and edit various sound effects without affecting the underlying signal. It's a great solution for musicians and sound engineers who need more flexibility and creativity in sound processing.

Compressor: Yes

Equipped with a compressor that automatically equalizes sound levels for a smoother and more balanced output. The compressor helps eliminate unwanted volume fluctuations and provides professional sound quality.