Broadcast Loud.
Studio Quiet.
StudioGain Pro adds up to +38 dB of clean gain, so your dynamic mic hits broadcast level without maxing your interface.
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Everything a fixed $149 booster does, plus the knob, inputs, and power it leaves out.
Turn the knurled dial from a light lift to +38 dB. That is 13 dB more than a Cloudlifter CL-1, and you set exactly how much each voice needs.
XLR, 6.35mm (1/4"), and 3.5mm on one front panel. The 3.5mm jack supplies 5V plug-in power, so broadcast dynamics, handheld mics, and clip-on lavaliers all work without adapters.
Runs on 5V USB power. Flip the rear 48V toggle to run studio condensers, even on interfaces and cameras that have no phantom power.
A CNC-machined 105 × 52 × 34 mm aluminum chassis blocks RF interference from phones and monitors, so your recordings stay free of buzz.
The low-noise Class-A circuit raises your mic signal by up to +38 dB before it reaches your interface, mixer, or camera. USB supplies 5V power only. The audio travels over the rear XLR or 3.5mm output.
With a stronger signal coming in, your interface gain can sit around the middle of its range instead of at 100%, where budget preamps add the most hiss.
The solid aluminum shell shields the circuit from phone and monitor RF, so the added gain stays free of buzz and hum.
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+38 dB Stepless Gain Knob · XLR + 6.35mm + 3.5mm Inputs · Rear 48V Phantom Toggle · 5V USB Power · CNC Aluminum Shielding
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Built for gain-hungry dynamic mics.: The SM7B, RE20, and PodMic all need more clean gain than most USB interfaces can provide. StudioGain Pro adds up to +38 dB before the interface, so you reach broadcast level with your interface gain near the middle of its range.
One box for every mic you own.: The XLR input handles broadcast dynamics and studio condensers, the 6.35mm jack takes handheld mics, and the 3.5mm jack powers lavalier and headset mics with 5V plug-in power. Flip the rear 48V toggle only when a condenser needs it. Use one mic at a time.
Engineered to stay quiet.: A low-noise Class-A circuit sits inside a 185 g CNC-machined aluminum chassis that shields against RF interference from phones, monitors, and USB hubs. USB supplies 5V power only, and audio leaves through the rear XLR or 3.5mm output.
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30-Day Trial: Try it at home for 30 days risk-free. Need help? Email us anytime at support@buycosari.com.
2-Year Warranty: If anything goes wrong within 2 years, we replace it free of charge or refund your order in full.
Up to +38 dB versus a fixed +25 dB, at less than half the price.
5V USB power and a built-in 48V supply mean it runs on almost any recording setup.
The shielded XLR patch cable and USB power cord come in the box, so you can connect it to your interface and start recording immediately.
Cosari StudioGain ProStandard Competitors
| Feature | Cosari StudioGain Pro | Standard Competitors |
|---|---|---|
| Maximum gain (rated) | +38 dB | +25 to +29 dB |
| Gain adjustment | Stepless rotary knob | Fixed, no control |
| Mic inputs | XLR + 6.35mm + 3.5mm | XLR only |
| Power | 5V USB with own 48V | Needs interface 48V |
| Cables included | XLR patch + USB cord | Usually none |
Swipe left for steps 2 and 3
Plug your mic into the XLR, 6.35mm, or 3.5mm input, then run the included XLR patch cable from the rear output to your interface or mixer.
Plug the USB cord into any 5V USB port and press the red POWER button. Flip the rear 48V toggle only for a condenser mic.
Set your interface gain near the middle, then turn the gain knob until your voice averages around -18 dBFS on your recording software's meter.
My Shure SM7B used to force my Focusrite preamp almost all the way up just to hit -16 LUFS, which brought up a constant white hiss on quiet podcast passages. Put the StudioGain Pro in line, set the rotary knob around 2 o'clock, and my room tone is dead silent. Having an actual physical gain dial beats a fixed +25 dB brick.
Solid CNC aluminum box that doesn't slide around on the desk, zero RF buzz next to my dual monitors, and it actually came with the short shielded XLR cable in the box instead of charging another $20.
Plenty of clean gain on tap without clipping when I laugh loudly on stream.
Lets me run a real XLR broadcast mic into my camera's 3.5mm mic input with clean, quiet pre-amplification.
Zero ground-loop hum and the aluminum housing feels built like studio gear.
Whispered audiobook lines come through crisp without raising the interface noise floor.
Tested both my RE20 dynamic mic and a 3.5mm clip-on lavalier—both worked flawlessly.
No-brainer upgrade for any home studio.
Clean analog signal right into Reaper.
Plug-and-play in two minutes.
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Yes. The USB cord carries 5V power only and sends no audio to your computer. Audio leaves through the rear XLR output to your interface, mixer, or recorder, or through the rear 3.5mm output to a camera.
Yes. Plug the SM7B into the XLR input, run the included patch cable from the rear XLR output to your Scarlett, and dial in up to +38 dB. In our test, the Scarlett's gain knob sat near the middle of its range instead of at maximum.
Any standard 5V USB port: a laptop, a powered USB hub, a phone charger, or a power bank. No wall adapter is included. Keep the cord connected while recording. A power bank makes the whole setup portable.
No. Leave your interface's 48V off. The StudioGain Pro runs on 5V USB power and has its own rear 48V toggle for condenser mics.
Yes. Studio condensers connect via XLR with the rear 48V toggle switched on. Lavalier and headset mics plug into the 3.5mm input, which supplies 5V plug-in power for electret mics, so 48V stays off.
It is built for one mic at a time. If you connect two, the inputs are summed into a single channel at one gain setting, with no separate level for each mic. It is a preamp, not a mixer.
Yes. Run a standard 3.5mm TRS cable (not included) from the rear 3.5mm output to your camera's mic input, then lower the camera's input level so the boosted signal does not clip.
The Cloudlifter CL-1 adds a fixed +25 dB, accepts only XLR, needs 48V from your interface, and costs $149.00 with no cables. The StudioGain Pro offers an adjustable +38 dB, three input types, and its own power for $69.99, with cables included.