Offering superior sound quality compared to conventional adapter cables, the Kopul CMCS-1 lets you easily capture sound from two 3.5mm microphones into your DSLR camera or camcorder in discreet mono or combined stereo while bypassing the hassle of a dangling adapter cable.
This simple and lightweight solution utilizes a shoe mount for effortless attachment to your shooting rig, and it features dual mono inputs for external microphones and a 3.5mm stereo output, making connectivity uncomplicated. The onboard switch allows the CMCS-1 to transmit a mixed stereo signal or two individual mono signals to any DSLR camera or camcorder with a 3.5mm input.
The compact and featherlight CMCS-1 is ideal for recording dialogue, narration over ambient sound, or stereo soundscapes and is so straightforward to operate, it will improve your audio without any interruptions for your workflow. Since the CMCS-1 is passive, it requires no batteries or special source of power.
Ask Our Experts800-606-6969
Hello, Log InAccount & Orders
Video Chat with a Pro Audio Expert - Live
Key Features
- Combines or Splits Two Mic Signals
- 2 x 3.5mm Mono Mic Inputs
- 3.5mm TRS Stereo Output
- Mono/Stereo Selector
Offering superior sound quality compared to conventional adapter cables, the Kopul CMCS-1 lets you easily capture sound from two 3.5mm microphones into your DSLR camera or camcorder in discreet mono or combined stereo while bypassing the hassle of a dangling adapter cable.
More DetailsIn Stock
Protect Your Gear
Add a protection plan from $5.99
See Options
Kopul CMCS-1 Overview
Combines Two Mic Signals
Kopul's CMCS-1 allows you to add two external microphones to your camera rig. Use two lavalier mics when you're recording dialogue or a lavalier and a camera-mountable microphone for recording a narrator with some ambient sound.
Wide Frequency Response
There's nothing like rich audio to enhance a video production. The wide 20 Hz to 20 kHz frequency response means the CMCS-1 can transmit detailed and accurate sound to your camera.
Simple to Use
The CMCS-1 couldn't be simpler to use. Its passive design means no power source is necessary. All you do is plug in your 3.5mm microphones, connect the included 3.5mm cable to your camera's audio input, and you're ready to record.
Sums Two Signals to Mono
When you select mono mode, the CMCS-1 combines both mic inputs to a mono signal and outputs this mono mix identically to two channels. Since the two mic signals are married together, you can tweak the level, EQ, or compression of the combined signals in postproduction.
Splits Two Signals
When you select stereo mode, the CMCS-1 splits the two signals and outputs them to separate
channels. This is ideal if you want the flexibility to alter the volume, EQ, compression, and panning on each individual track in postproduction. It's also a great option if you want to record a stereo soundscape.
Camera Mountable
The CMCS-1 attaches directly to your camera's hot/cold shoe. Weighing less than two ounces, the CMCS-1 is featherlight. You might not even know it's there.
Mounting Socket
The CMCS-1 is outfitted with a 1/4"-20 mounting socket so you can conveniently mount it on a tripod or onto your camera rig.
Includes Audio Cable
The CMCS-1 comes with a coiled 3.5mm TRS cable, which extends from eight to 30 inches. It features gold connector plating and OFC (oxygen-free copper) shielding to maintain the purity of your signal.
UPC: 847628034037
Kopul CMCS-1 Specs
Main Unit
| Frequency Response | |
| Inputs | |
| Outputs | |
| Power Requirements | |
| Mounting | |
| Dimensions | |
| Weight |
Cable
| Length | |
| Connector 1 | |
| Connector 2 | |
| Jacket Color | |
| Connector Plating | |
| Shielding Material | |
| Weight |
Packaging Info
| Package Weight | |
| Box Dimensions (LxWxH) |
Kopul CMCS-1 Reviews
I didn't find this to work well
By benjamin
Rated 1 out of 5
Date: 2026-01-28
I remember some hisisng, and didn't do the job well. I think I was using correctly.
Dynamite
By Bill
Rated 5 out of 5
Date: 2020-09-07
In the past I had to haul a two channel audio mixer in attached to my camera in order to have sound from two separate audio input sources. With this simple device I can plug both sources in and have one line outs and then connects and control the levels of audio in post production. Very simple to use and you don't even have to attach it to a shoe to get it to work. Very well thought out and designed product
See any errors on this page?
Will this work with Tentacle Sync E mkII Timecode ...
Will this work with Tentacle Sync E mkII Timecode Generator + RODE VideoMic NTG on Sony a7RV to have both audio and timecode?
Yes, you can use the Kopul CMCS-1 Passive 3.5mm Microphone Combiner/Splitter to send timecode as an audio signal from the Tentacle Sync E mkII Timecode Generator and audio from the RODE VideoMic NTG Hybrid Analog/USB Camera-Mount Shotgun Microphone into the Sony a7R V Mirrorless Camera at the same time. As another option, you can use the Tentacle Sync 3.5mm Mini-Jack Microphone Y-Cable -12" (B&H # TEC15), which is designed specifically for this application.
Date published: 2024-12-30
Can the mixer be used with a tentacle sync ...
Can the mixer be used with a tentacle sync device?
I will be pairing with a Panasonic S5 and Rode Videomic NTG
Date published: 2023-02-26
Can the mixer be used with a tentacle sync ...
Can the mixer be used with a tentacle sync device? I will be pairing with a Panasonic S5 and Sennheiser MKE 400 Shotgun Mic
Yes, you can use the Kopul CMCS-1 Passive 3.5mm Microphone Combiner/Splitter to connect the Sennheiser MKE 400 Shotgun Microphone and a Tentacle Sync timecode generator to the Panasonic Lumix S5 Mirrorless Camera.
Date published: 2023-02-26
Does it pass along 3V plug-in power from the ...
Does it pass along 3V plug-in power from the camera to run a lavalier?
I don’t believe that it does. It won’t work with a shotgun mic that runs off camera battery or just a lavalier mic. However it will work with wireless mic that has batteries in the receiver and battery powered shotgun mics.
Date published: 2021-01-08
Its possible to use Line level signal instead of ...
Its possible to use Line level signal instead of mic livel?
The Kopul CMCS-1 only takes mic level but you can use BH #SASMARTRIGP for line level input.
Date published: 2023-01-24
Can you monitor the sound input with headphones ?
Can you monitor the sound input with headphones ?
The Kopul CMCS-1 Passive 3.5mm Microphone Combiner/Splitter does not have a headphone output. Instead, you could monitor using your camera's headphone output.
Date published: 2024-05-12
Will the mixer introduced latency?
Will the mixer introduced latency?
No, the Kopul CMCS-1 Passive 3.5mm Microphone Combiner/Splitter should not introduce any latency to the signal chain.
Date published: 2023-02-12