Thank you for viewing. This is ART's Studio V3. I purchased this used, but I'm selling it because I don't use it. Since there was no box or accessories, I'm including a power adapter from Soundhouse. Operation confirmed. Non-smoker, no pets. - Model Name: Studio V3 - Type: Vacuum tube preamp - Output Protection: Output protection limiting - Input/Output Terminals: XLR terminals, 1/4 inch terminals - Power: With AC adapter