Klark Teknik MIC BOOSTER CM-1 Dynamic Microphone Booster with Preamp
- 25 db of boost, dynamic microphone booster
- XLR connection, 1 channel
- 250 ohm impedance
- 70 db signal to noise ratio, 25 db audible noise
- 7.2 ounces, metal enclosure
- Volume control
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact in-line booster that adds gain to a dynamic microphone, with a volume control. It is not a stand-alone microphone, and power details are unclear in the listing.
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ASIN: B08BS125D1Model: CM-1Category: Preamps
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Overview
Ahead of the mixer, this Klark Teknik booster adds gain before the signal reaches the mixer. The metal body connects over XLR, and a volume control sets the amount of boost.
Extra clean gain and a simple control are the reason to add it. The limit is power: the listing says corded electric, which is unclear for a small in-line unit, so check how it is supplied.
Who it's for
Streamers and singers with a quiet dynamic microphone and a modest input will use the added gain. Condenser microphone users and people who need a microphone itself should look elsewhere.
Pros and cons
- Adds gain to dynamic microphones
- Power supply details unclear
- Single channel only
- Condenser use not described
Performance notes
The preamp raises the microphone level before it reaches the next device, which lowers the noise from a weak input stage. The listed signal to noise figure is the guide to how quiet the boost is. Real benefit depends on the microphone and the interface.
Specifications
| Brand | Klark Teknik |
|---|---|
| Model | CM-1 |
| Dimensions & fit | |
| Item dimensions | 0.59 x 0.61 x 1.32 inches |
| Item weight | 7.2 ounces |
| Capacity & performance | |
| Signal to noise ratio | 70 db |
| Audible noise | 25 db |
| Construction & materials | |
| Enclosure material | Metal |
| Compatibility & installation | |
| Connectivity technology | XLR |
| Other details | |
| Special feature | Volume Control |
| Audio sensitivity | 25 db |
| Connector type | XLR |
| Number of channels | 1 |
| Impedance | 250 ohm |
| Part number | P0DPA |
Frequently asked questions
Is the Klark Teknik CM-1 a microphone?
No. It is an in-line booster with a preamp that works with a dynamic microphone. The handheld entry in the specs refers to the microphone form factor.
Does the CM-1 need a battery?
The listing says corded electric and gives no battery details.
How much gain does it add?
The listing gives 25 db.