Klark Teknik Mic Booster CT1

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Dynamic Microphone Booster

For dynamic or passive ribbon microphones
Gain: 25 dB
Power supply via phantom power
Frequency range: 10 - 20,000 Hz (± 1 dB)
Input and output: XLR
Dimensions: 24 x 25 x 78 mm
Weight: 100 g

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3-Year Thomann Warranty

Available since May 2020
Item number 474739
Sales Unit 1 piece(s)
Channels 1
Number of microphone inputs 1
Instrument input No
Tubes No
Compressor/Limiter No
Equalizer No
De-Esser No
Phantom power No
Phase Reverse No
External effect loops No
Analogue Outputs XLR
Digitale Outputs 0
Headphone connection No
Level Meter No
Design Adaptor

29 €

All prices incl. VAT

136

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in Preamps

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199 Customer ratings

5 143 Customers 4 36 Customers 3 11 Customers 2 8 Customers 1 1 Customer

4.6 / 5

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150 Reviews

pretty good.

Peter R. 438 18.01.2022

This gives me around 1/4 turn more, on (most of) my pre gain knobs, audio technica mic.
I have listened hard and cannot hear any conceivable sound colouring to my voice/harmonica, but mic'd up guitar/mic booster does sound a little "compressed", a few tweaks on the eq and the guitar sounds great. Passive DI & electric guitar, with this inline are "OK" too, but passive DI's tend to compress a little.
I like to see people at the back talking while I perform, so I don't "blast" the punters, any small variations in my "preferred sound" are not too important. A little Sound colouring doesn't matter at all to most live performer's.
So this mic pre is a great weapon to have in the bag when using "house PA's".

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Protect your ribbon mic and give it a boost!

GuitarOil 03.04.2022

EDIT: These are very prone to breaking. I have gone through 2 of them. The release switch for the XLR cable is what tends to go. It is pretty scary when one of these is stuck inside of a microphone worth 10x the CT1. Maybe invest in something else. Also, just add an extra cable between the mic and the CT1 if you are going to use it.

I was living in constant fear of accidentally feeding my ribbon +48v Phantom Power by accident; now I don't. This is a great solution to protect your delicate mics while also reducing the need to add incredible amounts of preamp gain to hear them properly.

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Small Device, Big Impact on Sound Quality

amavel pinto 20.03.2026

This is one of the products I use the most, especially in live music settings. It’s very powerful, and I have to say it solves most noise-related problems. One of its main advantages is that it reduces the need to push the mixer’s gain, resulting in a much cleaner and more controlled sound.

It’s an affordable piece of equipment, yet it delivers a level of quality that feels genuinely professional. At this point, performing live without it is almost unthinkable.

It operates using phantom power, so you do need to be careful—especially if your mixer doesn’t provide phantom power individually per channel. In those cases, activating phantom power across grouped channels can potentially damage instruments that don’t require it. This is something to pay close attention to.

That said, this unit is incredibly useful and solves many common problems, particularly for those starting out with smaller projects or live setups.

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You cannot go wrong!

Ollie Becker 12.12.2022

The first thing you notice when you pick up the mic booster is it's weight. It's very heavy for it's size, which is a good thing. It has a premium feel, even though it's price does not set that expectation. The connectors can be a bit stiff, but may loosen.

But the most important thing remains: the sound.

It's simple: you won't notice it's there. There is no hiss, hum or buzz whatsoever. It gives a massive boost in signal, with no noticeable side-effects. Yes, if you crank the gain up to 11, you might hear a slight hiss. But that's true of most audio equipment.

For the price, you cannot go wrong!

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Klark Teknik Mic Booster CT1

Dynamic Microphone Booster

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199 Customer ratings

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150 Reviews

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Klark Teknik Mic Booster CT1

Dynamic Microphone Booster

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