Bought a Behringer Odyssey with the intention of putting my ARP into well deserved retirement. Not easy to find a bag for the Behringer though. This bag has inner dimensions 597x395x152mm the Odyssey 589x409x133mm so in theory 14mm short in width but I thought I would try anyway. So inner partition out, Behringer in, partition on top of Behringer and zip the bag closed. Well it closes with a small (14mm !) bulge between the carry handles. The Odyssey cannot move even 1mm and I prefer this to having it flop around in the much bigger bags I was looking at. The bag itself ? - very well made for the price although I will not use the shoulder strap as the synth is heavy and there have been comments of the strap breaking.