Detail 01
The larger ENGL switcher
Roughly twice the Z-4's price and the more capable of the pair. Buy it for the extra functions, not build quality.

Independent shopping perspective
ENGL's larger footswitch, for players whose ENGL amp exposes more switchable functions than a basic four-button unit can reach.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Roughly twice the Z-4's price and the more capable of the pair. Buy it for the extra functions, not build quality.
Detail 02
It's the configurable unit in ENGL's switcher line, aimed at amps with more than plain channel switching.
Detail 03
Matched to ENGL amp jacks. It won't remote-control another maker's head, whatever the jack looks like.
Detail 04
No tone of its own. It only relocates amp controls to the floor, so signal path stays untouched.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Only if your amp exposes functions the Z-4 can't reach. If you just need channel and boost, the cheaper unit does the same job.
Plan on no. Footswitch wiring differs between manufacturers, so a matching jack does not mean the channels will map correctly.
No. It's powered through the connecting cable from the amp, so it takes no space or outlet on a pedalboard supply.
It's a direct amp footswitch, not a MIDI controller. For MIDI control you'd need a switcher built for that and an amp that accepts it.