Used item. This is a headphone amplifier that uses the TPA6120 IC chip. Initially, it had an LM4562 in the pre-amp stage, but I broke the pins (legs), so it has been changed to a TI (Texas Instruments) NE5532AP (with a Signetics mark). Please be aware of this. There are no operational problems, and it produces good sound. There are no noticeable scratches or stains. Body only. Please prepare an AC adapter of about 12V 1A. It will be shipped via Takkyubin Compact. --- The following is an explanation of the NE5532AP --- This is a second-source product and noise-selected product from TI of the NE5532, a representative OP amp IC for professional audio. It is said to have sound quality closest to the original source product of SIGNETICS, which has already been discontinued. --- The following is a Mercari AI-generated text --- The FX-AUDIO PH-A2J is a compact headphone amplifier with LINE input and PHONE output. - Brand: FX-AUDIO - Model Name: PH-A2J - Input Terminals: LINE1, LINE2 - Power Supply: DC 12V - Output Terminals: PHONE - Controls: Volume knob, Select button - Left and Right Channels: R, L Thank you for viewing.