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- 1x Mic Input
- Variable Impedance 150 Ohms to 15 kOhms
- HPF Variable from 20 Hz to 200 Hz
- +12 dB or +25 dB Gain Settings
The Cloudlifter CL-Z Variable Impedance Mic Activator from Cloud Microphones is a compact, single-input solution for common audio problems in the field and in the studio involving low-output passive microphones, including ribbons. The CL-Z uses any standard phantom-powered mixer or microphone input device to provide up to +25 dB of clean gain, variable input impedance, and a variable high-pass filter. Having an input impedance control that is sweepable from 150 Ohms to 15 kOhms allows you to creatively load the microphone's output transformer, with the result being a wide range of new tonal variations becoming available to each mic.
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I'm looking at the Cloudlifter CL-1, CL-2 ...
I'm looking at the Cloudlifter CL-1, CL-2 (2-channel), the CL-4 (4-channel 1-up rackmount) and this CL-Z. I understand the value of a switchable high-pass filter (removing low-end rumble, etc.), but I don't understand the value of variable impedance, especially since the CL-Z appears to add a potentiometer to the signal path. Does the "knob" allow you to "tune" the mic to what sounds best to you? What are the physics behind the "Z"? Thanks for your help!
Yes. That's pretty much it. Varying the impedance changes the response characteristics of the mic, and hence, "the sound." See this article for example: https://www.aearibbonmics.com/how-impedance-affects-ribbon-microphones/
Date published: 2021-02-02