I have been using this with dynamic microphones and passive DIs, etc. The sound quality is good. I am selling it because I am replacing my equipment. Please feel free to contact me. ■ Microphone Activator ■ 1-channel version ■ Power supply: Phantom power ■ Input/Output connectors: Input 1x XLR, Output 1x XLR ■ Size: 47mm, 114mm, 48mm ~From the manufacturer's website~ ・Amplifies the signal of low-output passive microphones up to 25dB using phantom power. ・Phantom current does not flow to the microphone. ・Phantom power is required for use. Microphones with low gain require a significant amplification of the signal. This is a common problem for engineers. Unfortunately, dynamic microphones, which are said to have the best sound quality, and many ribbon microphones fall into the low-output microphone category. In such cases, use the Cloud Microphones 1/2 channel microphone activator "CL-1" and "CL-2". It can amplify the microphone signal by 25dB before inputting it to the preamp, while maintaining clarity, providing a perfect solution in any situation. The "CloudLifter CL-1 / CL-2" uses phantom power to boost the gain to the required level. It is also ideal for ribbon microphones. It is also used by live engineers as a countermeasure against noise picked up by long cables. It has the effect of suppressing noise because it can boost the microphone signal immediately after the sound source, and it is also effective for XLR lines of acoustic guitars. As the title of the microphone activator suggests, using the "Cloudlifter CL-1 / CL-2", which breathes new life into dynamic & ribbon microphones, you can benefit in various situations, both live and in the studio. *Not compatible with microphones that require phantom power, such as condenser microphones.