Parallelizer is a parallel effect loop system that has 3 Mono SENDs and can mix 3 Stereo RETURNs and dry signal.You can preserve your dry signal by using the Parallelizer, which can result in loss of dry signal when using the digital effect pedals or when connecting the effect pedals in series.
 128 memory locations (when using MIDI PC)
 The 9V power input is converted to a +/-12V internally for anyaudio level
Firmware update is available via MIDI

Product Page

Manual

Parallelizer II

EFX-LE II

The new looper/switcher from MusicomLab for a small classic mono,
Stereo or A/B amp rock/pop setup - for example compressor, boost, distortion,
Phaser in front of the amp, delay and reverb in the FX path of the amplifier!!

EFX MK-VI Audio Controller

EFX MK-IV

Official Website

Review by Musiker-Board

Review by Rig-Talk