This is a review of the Klark Teknik Mic Booster CT1
https://www.amazon.com/Klark-Micropho...
The tests in the end show that the CT1 or the Cloudlifter drops the noise floor very close to -60 DB whereas with only using the MOTU M2 (and no devices) the noise floor is louder at around -44 DB. So the CT1 does help quite a bit.