MHDT Balanced Pagoda with 4 sets of tubes: GE 5670 that came with it, Tesla E88CC, Western Electric 396A (considered best tube of this type, 1 month old from Brent Jesse), Amperex 6DJ8. The 6DJ8/E88CC need the tube converter pictured attached to the Amperex, also included. This unit has been hand delivered to Linear Tube Audio, the MHDT US distributor, for a chip change from the original to an updated that can do 24/192 over AES rather than just 24/96. When there I had them go through and be sure everything was up to top spec. It affects the AES input only and has nothing to do with the DAC chip. It allows AES to accept 24/192 signals, rather than the lower bitrate of 24/96. I can cut and paste the exact response I got from the owner of MHDT if you ask. I accept PayPal friends and family, cash in person, Zelle. I have tons of feedback over on Audiogon under username bhvf. I have the original box and will double box for shipping. I'll cover shipping to CONUS. Local pickup always welcome or I can meet within 50 miles of 18045 (just ask). Thanks and ask questions, please. I would entertain tube amp/integrated trades with me adding cash. Asking $1550.