● This is a modified Alesis Nano Compressor. It's almost identical to the company's classic 3630, with the same circuit except for the absence of a gate. ◯ It's a 1/3U size, 2-channel compressor. The internal circuit is very simple, with only the input buffer ～ VCA ～ output buffer in the signal path, resulting in very high sound quality. ◯ You can switch between Peak and RMS (average) modes. Use Peak to tightly control the attack of drums, etc., and RMS for a natural compression effect on the overall sound. ◯ The sound quality is superb and natural. Even with 20dB of reduction, there's almost no noticeable change in sound quality. Being a 2-channel unit, it can be used as a total compressor for recording or live performances. The lack of tonal change and its small, lightweight design make it convenient for live recordings. ◯ Modifications include replacement of the power supply diodes and capacitors, metal film resistors in the signal path, tantalum capacitors for better sound, and the high-speed National Semiconductor LME49740 op-amps for improved audio quality. ◯ It's very popular in the US as a classic, with modification kits even being sold. It's been turned into a VST plugin called NightShine, and searching will yield many articles. One website even nominated it as the 20th best compressor of all time, alongside legendary units like the Fairchild 670 and Urei 1176. ◯ Included accessories are a generic power supply and a self-made sidechain filter. The sidechain filter prevents the compressor from affecting low frequencies, resulting in a more natural sound when used on a 2-mix. ◯ I always list the same item, but it's a different unit each time.