This is the legendary Mindprint DTC - Dual Tube Pre-Amp with the DI-MOD 24/96 AES/EBU Module installed. If you are here you already know what DTC is good for, I have used it both for recordings and also as a Mastering EQ plus Compressor. I have recently (20 April 2016) serviced it with new Tubes purchased from the Tube Amp Doctor in Germany as was instructed by the official Mindprint Support as the exact Tube types they use themselves for the DTC. The Unit is in great condition, used only inside my smoke-free home-studio. Its only issue is that some of the buttons can get stuck sometimes and need some wiggle to press or release. I believe they may need some spray-cleaner to make them more snappy but I got used to this behavior through the years. I am sorry to see it go, I hope to buy this great piece of hardware again in the future when I am rich and famous.