I finally picked up a Pigtronix Infinity with reverse/undo aux foot switch from a fellow Elektronaut last month.
Things I like:
-Midi quantize of commands Rec / Play / Start / Stop is very handy when you’re looping a beat-based instrument as the A4 can be (and of course AR)
-Overdub. I use the Infinity with my AR and A4 and a DJ mixer that has sends with pre/post switches. Overdub allows me to bring in more layers on the loop with the fader down and get creative and musical with loop creation.
-Reverse. A quick reverse + undo is great for techno fills.
-It loops in stereo. Surprisingly hard to find. Even many multi FX pedals with stereo input that have looping capability only loop in mono.
Things I don’t like:
-It doesn’t produce a perfect sonic copy of the input. The stereo image is subtly narrowed, and the high end isn’t as clear. I can make up for this somewhat on the DJ mixer, and for live use it’s good enough. If you’re not running it into a mixer with EQ, though it may be a deal breaker if you’re looping drums with high freq content like hats and cymbals.
-No OFF switch. I get it, it’s a pedal. No one wants to bump that on accident. The PSU lead is super firm as well, which is great for the stage. I’ll deal with the drawbacks of no OFF switch to enjoy the live stability.
Still worth the money, and it gives my live rig some freedom and insurance.
One Elektron, the Pigtronix, and a DJ mixer is all I need. So if one of my two Elektrons goes down for any reason, I’m covered.