# Boss EX-4 Effects Expander saves pedalboard space

> Boss launches a compact multi-effects unit that packs 120 classic pedal effects into one $300 device.
- Title: Boss EX-4 Effects Expander saves pedalboard space | Shortify
- Summary: Boss launches a compact multi-effects unit that packs 120 classic pedal effects into one $300 device. The EX-4 lets guitarists run four effects…
- Keywords: boss, ex-4 effects expander, multi-effects pedal, pedalboard, guitar gear, effects processor, compact design, space saver, line 6 hx one, guitar effects, EX-4, Effects
- Source: Guitar World — https://guitarworld.com/gear/multi-effect-pedals/boss-ex-4-effects-expander
- Published: 2026-09-24T09:59:42+00:00
- Read time: 1 min
- Topics: boss, ex-4 effects expander, multi-effects pedal, pedalboard, guitar gear, effects processor, compact design, space saver, line 6 hx one, guitar effects
## Boss launches compact effects powerhouse
The EX-4 Effects Expander packs 120 classic Boss pedal effects into one compact unit that frees up pedalboard space. It runs four effects simultaneously and costs $299.99.

> "An essential toolbox."
## Four simultaneous effects from vast library
The EX-4 draws from overdrive, distortion, modulation, delay, reverb, and bass-tuned effects. It also includes vintage Boss creations like the Slow Gear for violin-like swells and the Slicer for glitchy patterns.
## Customizable footswitches and utility blocks
Two dual-function footswitches can be configured for presets, effect on/off, memory navigation, master bypass, or tap tempo. Utility blocks like foot volume, noise suppressors, and mixers can be placed anywhere in the effect chain.
## Global EQ and colored LED feedback
A global EQ shapes the overall sound, while a colored LED system provides clear on-the-fly feedback about what the pedal is doing. This helps players see their effect settings at a glance.
## Flexible connectivity for any rig
Four audio jacks support mono and stereo connectivity, with two slots for an effects loop to place external pedals in the chain. MIDI in/outputs and inputs for external footswitches and expression pedals add flexibility.
## Bridge between pedalboards and modelers
The EX-4 lands between traditional pedalboards and amp modelers, offering a middle ground. It can even be hooked up to a modeler and treat it as a single external pedal within its effect chain.

> "Modern players carefully curate their pedalboard builds, and every slot must earn its place."
## Key takeaway

The EX-4 lets guitarists run four effects simultaneously in a space-saving design, bridging the gap between traditional pedalboards and amp modelers.