Cloudlifter CL-Zi with a Shure Beta 58A: the three-position switch is attenuation, not three levels of gain
Shops describe the CL-Zi's +25 / +12 / +8 dB switch as three gain settings. Cloud calls it an output attenuation switch — the boost is fixed and the switch only takes level away, which changes what the box can and cannot fix.
Signal Chain Compatibility Matrix
Select gear and parameters for live gain, impedance and SPL calculations.
Input Equipment Setup
PASS: Optimal Signal Chain
Requires minimum +60dB of clean pre-amp gain. Most budget entry interfaces max out at +50dB to +56dB and introduce hiss at max pot. An inline preamp booster (Cloudlifter CL-1 / FetHead) is strongly recommended.
The interface preamp provides sufficient headroom.
$538
$405
-25%Tonal & acoustic characteristics: Flat, wide-range frequency response for clean music and speech. Smooth, warm acoustic character with air-suspension shock isolation.
Technical advisory: With +69dB max gain, the Gen 4 Solo can drive demanding dynamics like the Shure SM7B natively without requiring an external inline booster.
Physical Interconnect Topology
Shure SM7B
Direct Cable Connection (No Intermediate Box)
1x Shielded Balanced XLR Cable (3-Pin XLR Male to XLR Female)
Focusrite Scarlett Solo (Gen 4)
Host: Apple MacBook Pro (M1/M2/M3/M4)
Short answer: the chain works at all three switch positions, and none of the three is a gain setting.
The numbers. At 85 dB SPL the Beta 58A's −51 dBV/Pa sensitivity puts −57.8 dBu on the cable. The Volt 176 clips at +9 dBu, so a −18 dBFS take needs 49 dB of total gain. With the CL-Zi at +25 dB the Volt 176's own preamp supplies 24 dB of its 55 dB; at the +12 setting it supplies 37 dB; at +8 it supplies 41 dB. All three fit.
What Cloud publishes. The specification reads Output attenuation switch +25dB / +12dB / +8dB settings, alongside Up to +25dB of ultra-clean gain. Together they say one thing: the amplifier is fixed at +25 dB and the switch throws 13 or 17 dB of it away after amplification. Calling these “three gain levels” inverts the design, and the inversion has a consequence: the +8 position does not give you a gentler amplifier with more internal headroom. The signal still passes the same +25 dB stage before anything is removed. If a loud source were about to strain the CL-Zi's output, +8 would not rescue it — it would hand you the same strained signal 17 dB quieter.
Phantom power, stated plainly for once. Cloud writes that the CL-Zi “doesn't pass phantom power, effectively safeguarding all passive ribbon microphones.” That sentence is exactly what three of its competitors lack. A condenser behind a CL-Zi will not work at all, and Cloud says so in print.
The gem. The attenuator exists because +25 dB in front of a modern 55–70 dB preamp is often too much, and the usual reflex — turning the interface preamp down to the bottom of its travel — lands you where many preamp designs are least linear. Here +25 dB leaves the Volt 176 at 24 dB while +8 dB leaves it at 41 dB, in the comfortable middle of its range. The setting sold as “less gain” is arguably the better-sounding one.
What to do: Beta 58A → CL-Zi → Volt 176 mic input, +48 V on for the booster. Start at +8 with the interface at 41 dB; go to +25 only when you want the interface preamp out of the picture.