Sound Devices MM-1 Single Channel Portable Microphone Preamp

BH #SOMM1 • MFR #MM-1
Sound Devices
Sound Devices MM-1 Single Channel Portable Microphone Preamp
Key Features
  • Compact Design
  • XLR Input
  • Phantom Power
  • 1/4" Headphone Jack
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The Sound Devices MM-1 is a single-channel, portable microphone preamp and headphone monitor designed for monitoring sound for film (boom operators), broadcast and ENG, field recording, voice-over work, and corporate/industrial environments. The mic preamp features exceptional audio quality, with a dynamic range exceeding 120 dB and an audio bandwidth from 10 Hz to 50 kHz.
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Expected availability: 2-4 weeks
$559.00
$47/mo. suggested payments
with 12 Mos. Promo Financing* 
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Sound Devices MM-1 Overview

  • 1Description
  • 2Compact & Portable
  • 3Versatile Monitoring
  • 4Peak Limiter
  • 5Low Cut Filter
  • 6Superior Audio Quality

The Sound Devices MM-1 is a single-channel, portable microphone preamp and headphone monitor designed for monitoring sound for film (boom operators), broadcast and ENG, field recording, voice-over work, and corporate/industrial environments. The mic preamp features exceptional audio quality, with a dynamic range exceeding 120 dB and an audio bandwidth from 10 Hz to 50 kHz.

The balanced XLR microphone input provides user-switchable +48V, 12V, and 12V-T phantom power. A separate balanced monitor input accepts balanced or unbalanced line-level signal. The 1/4" TRS headphone output is capable of monitoring microphone signal, external line level signal, or a mix of both. A 3-position low-cut filter switch eliminates noise below 80 Hz and 160 Hz. The compact unit features a belt clip and is powered with 2 AA batteries or an external DC power source.

Compact & Portable

The MM-1 microphone preamp is compact, lightweight, and features a belt clip, allowing comfortable operation for field audio engineers

Versatile Monitoring

A separate input accepts line-level signal and the headphone output is capable of monitoring the mic input signal, line input signal, or a mix of both

Peak Limiter

Peak limiter eliminates noise and distortion caused by signal overload

Low Cut Filter

A 3-position low-cut filter switch eliminates noise at the 80 Hz and 160 Hz frequency ranges

Superior Audio Quality

The transformer-balanced mic input and premium electronics yield a dynamic range exceeding 120 dB with a 10 Hz to 50 kHz audio bandwidth
UPC: 859108005420

Sound Devices MM-1 Specs

Inputs1 x 3-Pin XLR Female mic input
Output1 x 3-Pin XLR Male line output
Monitor/Headphone Out1 x 1/4" / 6.3 mm TRS phone
ALT I/O1 x 1/4" / 6.3 mm monitor in
Link Input/OutputNo
ImpedanceMic In: 2 kOhms
Monitor In: 22 kOhms
Line Out: 130 Ohms
Headphone Out: 200 Ohms
Gain0 to 66 dB, selectable
Hum & Noise-126 dBu (EIN)
Frequency Response20 Hz - 20 kHz (+0.1, -0.5 dB)
Distortion0.05%
MeteringPower and limiter/peak LEDs
Control Voltage OutNo
Phantom Power+48 V, +12 V, and +12 V-T
Operating TemperatureNot Specified by Manufacturer
Power2 x AA batteries
5 - 17 VDC via threaded coaxial jack
Dimensions (HxWxD)1.95 x 3.75 x 6.55" / 49 x 95 x 166 mm
Weight1.42 lb / 0.64 kg
Packaging Info
Package Weight2.33 lb
Box Dimensions (LxWxH)10.4 x 7.4 x 4.1"
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YOUR RECENTLY VIEWED ITEMS

What's the battery life like, with phantom power ...

What's the battery life like, with phantom power turned on, and assuming fully-charged eneloops?
Asked by: eric
Let me rephrase my question: For those who have used this preamp, what is your experience with its battery life? Thank you.
Answered by: eric
Date published: 2021-04-20

question

Will this work to provide line level control and phantom power to an Alexa Mini, and if so, what other components would be needed to ensure it works well?
Asked by: Steve
Yes, you need to make sure you have the appropriate phantom power setting; 48volt is the most common, and make sure your Alexa is set to line level input. All you need is 2AA batteries, a microphone, and two XLR cables. One to connect the mic to the MM1, and another to go out of the MM1 to the Alexa. Recommend energizer ultimate lithium batteries. They'll last days.
Answered by: Alvin M.
Date published: 2018-08-28

question

How do I use the included DC connector? Do you plug a cable into it?
Asked by: Phillip
There are a couple of power supplies you can use:Sound Devices XL-WP3 Universal Power Supply, or for mobile power Sound Devices XLNPH NP Type Battery Cup for Field Mixers with a Switronix NP-50 NiMH NP-1 Style Battery - 50Wh, 13.2-Volt
Answered by: Adam D.
Date published: 2018-08-27

question

the monitor headphones is mono or stereo?
Asked by: lucas D.
This is a mono device, but you can monitor using stereo headphones
Answered by: Nelson S.
Date published: 2018-08-27

question

how does this work if I'm going directly in my camera (red scarlet mx..or my 5d mark 3)??
Asked by: kiki z.
It has a loop through Through put if you are using XLR. It goes in and comes out at unity gain. It can be jiggered to provide OTHER current gains (via the headset output) if you get creative. But it's a straight loop through designed to allow the boom operator to hear EXACTLY what is going in. It's got 120db gain out of the headset so you can amplify the mic input and hear EVERYTHING -- even more than the recorder can resolve. (Do NOT make the mistake of thinking what you HEAR is being recorded!!! The recorder can only be judged on it's playback! It is NOT as good at resolution as MM1!)Think of it as a tap that does not alter the mic input to the camera at all. Very high impedance so VERY low drain on the original signal. I run my XLR to it, then loop out into my Canon AX 20 camera's XLR input. The Canon's input does not know the MM1 exists -- at all.
Answered by: ROBERT M.
Date published: 2018-08-27

question

what cables do I need to hook this up to my 70d??
Asked by: kiki z.
Looks like you'll need to purchase a XLR F to 3.5mm (mono) male cable. The output of the SD MM-1 is Line level. So, the cable will need to be the type that can attenuate line level down to Mic level for the 70D to receive.
Answered by: aaron b.
Date published: 2019-12-06

question

If I used this preamp with a recorder (TASCAM DR-40) at what setting should I put the audio gain in the recorder? I will be using it with a pro camcorder two, which has its own audio gain manual control, what gain setting should I use there too? Or should I adjust it while monitoring until I reach my sweet spot ?I'm still in the learning process.Thanks in advance :)
Asked by: FAISAL
Hello, I personally use an H4N so i'm not entirely sure how high the noise floor for the TASCAM DR 40 nor the Pro Camcorder. May be a silly question but have you tested the two yet? From what i've heard (friend's experiences) the Tascam has a pretty low noise floor. Both having pretty good preamps you may not need the MM1. Typically you should try to keep your recorder level below 60, but it also depends on your mic as well. Depending on the quality of your mic will determine your levels. And yes you should always be monitoring during live recording, since every environment, voice, etc, will change how you adjust your audio settings.Hope I helped a little. I'm always in the learning process too, keep on going!
Answered by: kirk w.
Date published: 2018-08-27
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