Hi guys,
I'm back... once again I have to apologize for not answering sooner in here. Some time passed from when I asked about the Operating System until I got an answer and I gotta admit it got lost under the radar as well as some business travels. I'm truly sorry about that!
Just to clear up a couple of discussion on the board. Yes, I am indeed from TC Electronic. Specifically I'm the Product Manager for Guitar Effects, which basically means that I'm in charge of our guitar-side of the business - i.e. pedals, tuners, etc.
So about Ditto Looper and the volume drop some of you have experienced. This is a bug in the software and there is already an update out that fixes it completely. The reason why you might experience this volume drop is that Ditto Looper uses something called "gain ranging" to get extra-ordinary high headroom, meaning it can be used with both guitar- and line-level signals. Gain-ranging is basically taking multiple AD/DA converters and setting them to different ranges and then intelligently through software picking the right one depending on how loud the signal coming into the pedal is.
Unfortunately there was a small bug in the software which meant that if the signal hit a certain level it would be sent to the wrong A/D converter. The software that is available on the Ditto Looper webpage fixes it completely.
@ A String: Regarding the M350 I have sent you a PM.
Cheers,
Tore