CLASSIC PRO / CSB1 Microphone Booster

The CSB1 is an in-line microphone booster that uses phantom power to boost the signal level of passive microphones by +26dB. When the microphone alone does not provide enough gain, the CSB1 can cleanly amplify the signal without increasing noise or distortion.

■Features ・Amplifies microphone signal by +26dB ・Ideal for low gain microphones such as dynamic and passive ribbon microphones ・Clean and stable gain with low noise and distortion ・Slim and compact design with robust metal housing ・Powered by +48V phantom power ■Specifications ・Frequency response: 20Hz to 20kHz (-0.3dB) ・Gain: 26dB ・Maximum output level (0.5% THD): 10dBu ・Output noise: -97dBu (A-weighted) ・Power supply: +48V phantom power ・Impedance: 130Ω ・Recommended load impedance: >1kΩ ・Current consumption: 2.5mA ・Connection: XLR 3-pin ・Dimensions: 19mm (diameter) x 98mm (length) ・Weight: 60g Frequently asked questions Q. Can it be used with a condenser microphone? A. It cannot be used with a condenser microphone. Q. Does the CSB1 have the effect of reducing noise? A. This type of microphone booster only amplifies the signal and does not have the function of reducing background noise picked up by the microphone or the amount of noise contained in the microphone, interface, mixer, etc. For example, if noise is noticeable when you increase the gain only on the interface's microphone preamp, using a microphone booster will reduce the amount of amplification by the interface's microphone preamp, so there will be a change. However, if the microphone preamp does not have much noise to begin with and you are not using it with the gain increased that much, I don't think you will notice much of a change.