DT50 112 Has Whisper Quiet Volume in DT50 / DT25 Posted January 25, 2022 I'm glad that your amp is back and sounds good. But a year to get repaired at a L6 service center is not an encouraging story. I just bought a DT50 a couple of days ago. I've had to reinstall the firmware twice already. I really want to keep this amp as it sounds pretty good. But it's scaring me a bit and knowing that I can't get it serviced in a timely manner makes it worse. I'm planning on making this amp part of my band rig with my Helix floor. I hope I'm not making a huge mistake.