The presence of the new XL Reverbs is the most important difference between the regular and the XL versions of the M-One. Visible changes are:
- New "XL" size in all reverbs,
- New "Small Room" algorithm.
Additionally, the reverbs have gone through a general improvement process, mainly focusing on the width/narrowness of the stereo image. This is most evident when changing the value of the reverb algorithm's "size" parameter, but it also stands out in a general comparison with the regular M-One. The density and modulation parts of the Reverbs have been improved, and a new ping pong delay algorithm has been added. Finally, we replaced the regular M-One's balanced stereo jacks with XLR connectors, which makes it more reliable in a live situation.