Thank you for viewing. ■ Items ① FX-AUDIO- TUBE-00J UNLIMITED 6J1 Military Selected Grade Vacuum Tube Loaded Line Amplifier Special Limited Edition Model with OPA627 ② TUBE Ring Vacuum Tube Vibration Dampening Ring, Set of 4 ③ AC Adapter DC12V/3.5A, Center Positive/Inner Diameter 2.1mm ④ RCA-RCA Cable 75cm 2-piece RED MOGAMI Mogami 2534 If you already have RCA cables connected to your amplifier, you can enjoy the vacuum tube sound quality by inserting this set in between. Usage frequency is not very high. Soon after purchasing it new, the illumination lamp for the vacuum tubes went out on one side. (See photo 7) It sometimes lights up, but it's a decorative light and does not affect the sound quality or operation. This set includes the AC adapter, vacuum tube vibration dampening rings, and RCA cables (2, left and right) purchased from Pro Cable, which are not included when purchasing the main unit only. All items have been tested and confirmed to be working before listing. Please consider purchasing if you understand that these are used items. --- #VacuumTube #LineAmplifier #FX-AUDIO #NorthFlatJapan