◯ This is a listing for a modified "Tokyo SOUND ValveX-SE Vacuum Tube Headphone Amplifier." ◯ I purchased this used from an online shop three months ago. The product details from that time are quoted below: Product Contents ・Headphone amplifier unit ・Power cable ・Vacuum tubes Included vacuum tubes: SYLVANIA 6189 2 (installed) Groove Tube 12au7 2 Electro-Harmonix ECC82 1 And one other, I forgot which Modification Details ・Main capacitor in the power supply section changed to a Nippon Chemi-Con KMQ 220uF ・Output section capacitor changed to a Nippon Chemi-Con LXZ 470uF ・X capacitor in the input and VR sections changed to 0.47uF Regarding the sound changes, the modifications have: While retaining the warmth of the vacuum tubes, noise has been reduced and the sound has become clearer due to the capacitor replacements, and the use of SYLVANIA 6189 results in a core-rich bass sound. There are no problems with the operation or sound, and it can be used. Vacuum tube headphone amplifier ValvoX SE, volume adjustable, with RCA input terminals. - Model name: ValvoX SE - Volume control: Yes - Power switch: Yes - Input terminals: RCA terminals - Headphone output: Yes - Impedance select: Yes ◯ Although it is an old product that is already discontinued, the condition is relatively good and there are no failures. I think you will be able to use it without any problems in the future. Personally, I'm starting to get tired of the warm-toned sound unique to vacuum tube headphone amplifiers, so I'm listing it this time. ◯ Everything in the images is included. No box or case is included. ◯ When purchasing, please understand that this is a used item stored by an amateur, and please refrain from returns or claims.