Thank you for viewing! The wiring in the first photo is not included. This unit, the 16ch amplifier-integrated 16ch DSP, is no longer available. I used one myself, and I was surprised at how good the sound was, the best among the built-in amplifiers. Used for one year. Warranty period has expired. New price: 16ch amplifier-integrated 16ch DSP: ¥198,000 awave DSP Director DSP controller: ¥28,800 Total: ¥226,800 There may be minor scratches, but it's in good condition as it was only used for a year. The controller is a touch panel type and allows for volume adjustment in increments of 0.1, such as for subwoofers. It also allows for operations such as play, pause, and skip, and allows for program changes (8 programs) for DSP adjustments. Regarding the DSP built-in amplifier: Rated at 80W, 200W when bridged. This model covers almost all the input sources required for modern digital audio playback, and comes standard with optical digital, coaxial digital, USB OTG, Bluetooth input (aptX, aptX-HD, ACC, SBC support), and AUX input. I didn't use an external amplifier, so I used channels 1-8 with soldering, but channels 9-16 are unused. There are differences in sound quality depending on the input source in the system configuration, so you can find your preferred connection method. For example, if you later need coaxial or USB OTG connections, or if you want to try them out, you won't be able to connect directly to the DSP unless you have a compatible model. You can add external devices, but the ability to input directly from the playback device to the DSP has significant sound quality advantages. Since this is no longer available, I think it's worth having. Please ask if you have any questions.