This is the so-called ABC box. It splits the output into three branches, each of which can be switched ON/OFF. I bought it urgently due to a malfunction of other equipment, but it quickly became unnecessary and has been stored almost new. The protective seals on each button are still attached. Purchased at a store within the 23 wards of Tokyo, and the warranty period is until 2025/5/18. I would greatly appreciate it if someone could purchase it using a coupon, etc... ■ From the official website ■ The LEHLE 1at3 SGoS is a programmable true bypass switcher. It outputs the input signal to up to 3 different amplifiers, allowing you to switch freely between each amplifier. The output C and C→B terminals also function as an effects loop for output B, allowing you to remove unnecessary effects from the signal path. If you connect a tuner to output A, the signal from output A can also be removed from the signal path. With gold-plated contact relays and an active pop noise reduction circuit, not only the signal but also the ground is switched, so unpleasant hum noise does not occur when switching between outputs A, B, and C. Like other SGoS series products, this LEHLE 1at3 SGoS is very easy and intuitive to program. The remote terminal for the TRS phone jack is particularly convenient, and by using a stereo patch cable, it can be linked with other SGoS switchers, and it can also be directly connected to a MIDI controller. The LEHLE 1at3 SGoS can be programmed on its own, but it also supports remote operation using MIDI program change commands.