Question

What type of tubes does my ADL600 use?

Answer 1

The ADL600 uses a total of three tubes on each channel: [2] 6922 and [1] 12AT7A.

The tube in the first position closest to the rear panel is a 12AT7A. The tubes in the two positions directly behind the faceplate are both 6922 triodes.

Replacement tubes can be purchased from a variety of vendors and from the PreSonus webstore.