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Your cart is empty. OFCOSH Mic Booster Microphone Preamp Audio Booster
✔ Active Untra-Clean Gain
✔ Phantom Powered
✔ Plug & Play
✔ Reduce Noise
♬ DYNAMIC AND POWERFUL ♬
OFCOSH mic booster can work with almost any dynamic or passive ribbon microphone.
♬ GIVE DYNAMIC MIC UP TO 25DB ♬
OFCOSH microphone preamp vastly increases signal strength of dynamic mic, helps
dynamic mic to record smooth vocals and acostic instruments.
♬ NO DAMAGE TO THE MIC FROM 48V ♬
OFCOSH mic booster protects mics from adverse effects of phantom power.
♬ PERFECT COMPATIBILITY ♬
Perfect for podcasts, live streaming, radio broadcasts, live sound, and studio recording.
♬ How does it work? ♬
① Connect the Mic Booster’s output to a device that can supply +48v phantom
power, such as a preamplifier, mixing console, or audio interface.
Depending on the equipment used, the Mic Booster can be closer to the mic or the preamp when using long cables.
② Connect any dynamic, ribbon, or tube microphone to the Mic Booster’s input.
The Mic Booster does not pass through the phantom power, making it safe for
delicate ribbon microphones. For microphones requiring +48v,
like condensers, a separate external phantom power supply is necessary.
③ Begin with the lowest gain setting, then activate the +48v phantom power
on your device (preamp, mixer, interface, etc.).
Gradually increase the gain to your preferred level.
NOTE:
✿ Not compatible with condenser microphones.
✿ 48V Phantom power needed, not included in the package.
Timothy Phoenix
August 31, 2025
I got a good mix of Dynamic and Condenser microphones around my streaming setup. When I saw this Preamp Booster, I had to try this it just see if it really worked. Not only did it work but it worked better than I had expected. I just plugged it into my XLR cable and attached it to my 48 volt Condenser microphone. Then...nothing happened.That is because I didn't read the packaging or directions. It's a booster for a non-powered microphone that uses 48 volt from a mixer to do its job. Built into this booster is a 48 volt cutoff to protect the Dynamic microphone from any power damage. A very clever design. However, that same cutoff blocked the power to my Condenser microphone that needs power to work at all.When hooked up to an unpowered Dynamic microphone, it cranked up the clarity and gain to whichever Dynamic mic I chose. It most definitely works as described and does better than I could have hoped for. I might need a couple more of these. I recommend but be sure to read the directions first. 5 stars.
Jacob R
August 2, 2025
Great little preamp for use in situations where you need to drive more gain straight from the capsule. Doesn't introduce any noticeable noise, and it's small enough that it easily fits in-line in any setup.
Kindle Customer
July 27, 2025
I am sure it is a good product but I Can't use it without a 48v phantom power. So, I'll wait a bit before buying the adapted interface. More gear, more cables, mote weight, more space use, more expenses. it is a bit fustrating. Learning is expensive, especially the hard way. I'll update my review when I I'll be able to actually use it.
Customer
June 25, 2025
This microphone booster is incredible! Not only did it amplify the signal to my mic, but it also did not include noise pollution in the signal, as some boosters do! This was very easy to use, and I'm very pleased with this product! I really feel it has leveled up the quality of my content.
James Lummel
June 8, 2025
I acquired this for a wireless microphone system that had a relatively weak signal through the XLR jacks. They are straightforward to use, and the phantom power from the mixer simplifies the setup process.
Jeremy
May 1, 2025
This is a great booster. I love how it has gotten down to the size of barely bigger than a barrel and it still sounds pretty clean too!
Tony & Claws
February 19, 2025
Poor quality build and adds noise to the audio
EricP
February 14, 2025
This introduced no noise to the signal. It did what it is supposed to. I would order again.
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