ON LOCATION

FIELD, NATURE, event RECORDING

Whether you need to tape a live concert, record audio for film or capture the sounds of nature — we have a professional solution that is portable, battery-powered, and easy-to-use.

Turn Your Phone Into a Field Recorder

WORLD'S FIRST MOBILE RECORDING INTERFACE

MixerFace R4 lets you record, edit and share your work online. From anywhere. An internal rechargeable battery sets MixerFace R4 apart from other recording interfaces, which are either tied to the wall or go through batteries too quickly. MixerFace is your ideal companion for the road — perfect for field recording, event taping and location shoots. We’ve packed just the right set of features into this handheld device — two studio-quality mic preamps with 48V phantom power, 24-bit/192kHz resolution converters for broadcast-quality audio, a high-pass filter to cut wind noise, a loud headphone amp, USB charging and more!

MixerFace R4 recording with Garageband

Key Applications

Capture the Moment

Capture your band live by setting up MixerFace R4 on a mic stand or a tripod. It’s equally comfortable on and off the stage. Connect an XY mic and press record. Its low-noise mic preamps will handle both quiet and loud passages with ease. And if you need to plug in a feed directly from the board, you have the Aux 3/4 inputs available for that.

Ultimate Field Recorder

MixerFace R4 likes to be outside. The case is made from strong, lightweight aluminum, deep anodized for scratch protection. The analog controls on the top panel make adjustments quick and easy. We designed the recorder for long and reliable service in the field. You will likely change several phones while using the same MixerFace R4. 

Ultimate Field Recorder

MixerFace R4 likes to be outside. The case is made from strong, lightweight aluminum, deep anodized for scratch protection. The analog controls on the top panel make adjustments quick and easy. We designed the recorder for long and reliable service in the field. You will likely change several phones while using the same MixerFace R4.

Get closer to Nature

About the size of a US passport, MixerFace R4 weighs just 1 lb. It’s easy to take with you anywhere you go. And with the available water-proof carry case, you can get closer to nature, to record better sounds and samples. MixerFace R4R with the internal micro SD card recorder is your ultimate companion for location shoots and field work.

Record for Longer

Record for longer stretches without recharge. Our long-lasting Lithium-Polymer battery lets you avoid interruptions and use more time for audio capture. Charge from any USB charger in the world and the battery will last an entire session. Rechargeable technology also means you can stop buying batteries and start saving money.

Record for Longer

Record for longer stretches without recharge. Our long-lasting Lithium-Polymer battery lets you avoid interruptions and use more time for audio capture. Charge from any USB charger in the world and the battery will last an entire session. Rechargeable technology also means you can stop buying batteries and start saving money.

Acoustic Measurements

If you are an acoustics professional involved in room measurements, you know how important it is to have precision audio equipment that’s also portable and lightweight. As a portable audio interface, MixerFace R4 works with many software packages for acoustic analysis. It will easily travel on site with you and will deliver reliable results every time.

PRODUCT DETAILS

MixerFace R4 has the footprint of a passport

MixerFace R4 mounts to a mic stand for portable use

Lightweight and portable, MixerFace R4 feels at home on a DSLR video shoot

MixerFace R4 mounts to a tripod, making it easy to position it just right

You can even record with time code with MixerFace R4

MixerFace has a 1/4-20 tripod nut and can mount on camera

Improve the audio quality of your videos by using MixerFace as mic preamp

Podcasting on location with MixerFace R4

Interviewing a remote guest with MixerFace R4

Narrating voiceovers and radio promos with MixerFace R4

MixerFace R4 works with a variety of apps, including GarageBand

MixerFace R4 is great for practicing music or recording acoustic instruments

MixerFace R4 can charge from any standard USB charger in the world

The internal rechargeable battery in MixerFace R4 lasts for an entire shift

MixerFace R4 is an all-around great tool for audio recording

MixerFace R4 comes in an attractive package with accessories

MixerFace R4 has balanced outputs for connection to external powered monitors

  • High Dynamic Range Jasmine Mic Pres™ offer plenty of clean gain
  • Professional series A/D converters deliver high audio quality, on the go
  • Adjustable ZLM, Hi-Z inputs and Low-Cut filters let you cover all bases
  • Custom AmpExtreme™ headphone amp offers clarity, detail and volume
  • Aux input lets you mix in a stereo source for practice or performance
  • Works with Android, iOS, Mac, Windows, and most phones and tablets
  • Works with most smart phone and tablet recording apps
  • Lithium-Polymer battery plays for a full session without refill
  • Aircraft-grade aluminum chassis offers scratch protection and durability
  • Balanced, Unbalanced, and Headphone outputs for true versatility
  • Two versions are available: with and without the internal recorder
Analog Specs
Phantom power 48V±4V, 10mA max per channel
Mic Preamplifier Gain +10dB…+53dB
Mic input impedance 1kOhm
Line input impedance 10kOhm
Hi-Z input impedance 1MOhm
High Pass Filter 130Hz, 6dB/octave roll-off
Freq. Response 20Hz…20kHz ±0.5dB
S/N Ratio >103dB, no weighting
THD+N 0.002%
Crosstalk, 1kHz -95 dB
Aux 3/4 max input level .2 V rms / +9.2 dBu, rel 0 dB FS
Line-level output 1.8 V rms / +7.1 dBu, rel 0 dB FS
Balanced output 3.5 V rms / +13.1 dBu, rel 0 dB FS
Output Impedance 1 Ohm (headphone output)
Output power, Headphone output 400mW (total) at 32 Ohm
Supported Headphones 16…600 Ohm
Gain Switch (set low to feed DSLR) 46dB of gain reduction
Digital specs
Resolution 16-bit, 24-bit, 32-bit
Sample Rate 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.2 kHz, 192 kHz
Clocking Two custom, mil-spec clocks, 10 ppm precision, 1 ps jitter
Compatibility iPhone, iPad, Android, Mac, Linux, PC. Driver is available for Windows
USB Input USB 2.0, fully compatible with USB 3.1
General Specs
Mic Preamps Custom-desinged Jasmine™ technology, dual-stage analog preamlifier
Headphone Amp Custom-designed AmpExtreme™ technology with bipolar power supply
AC Adapter Supports standard 5V chargers / adapters with a USB “micro B” cable
DC Powering/Charging +5V from adapter, such as iPad charger. 2A or more recommended
Analog Supplies Battery-isolated, triple-filtered ±7V analog power supply rails
Digital Supplies Five independent, high-efficiency switch mode power supplies
Chassis Material Aircraft-grade aluminum, hard-anodized for scratch resistance, black
Rechargeable Battery Li-Polymer, 8 hours play/record time (varies with phantom-powered mics)
Unit Dimensions: 121mm (4.76″) (L), 70mm (2.76″) (W), 36mm (1.42″) (H)
Unit Weight: 260 grams (9.1 ounces)
Box Dimensions: 200mm (7.87″) (L), 131mm (5.16″) (W), 42mm (1.65″) (H)
Box Weight: 455 grams (1 lb)
Included accessories Quick Start Guide, Felt carry pouch, Cable for charging or USB audio
Specifications subject to change without notice as we continue to improve the product and production process

Your smartphone is an amazing audio production tool. Many apps let you edit, add EQ, dynamics and then upload your audio online in minutes. But how do you get quality audio into the phone in the first place? Now it’s simple! Set an R4 on your coffee table, connect a mic and the phone, start your favorite recording app and you’re recording — it’s that easy!

Have a particular vocal mic that suits your voice? No problem. Mixerface offers 48v phantom power to accommodate any high-end condenser. The custom designed Jasmine Mic Pres™ deliver a world-class signal, designed to capture every nuance of the performance. MixerFace R4 is a professional Mobile Recording Interface™. It delivers broadcast-level audio quality.


This hand-held recording marvel packs a number of features previously available only in studio interfaces, into an ideal form-factor for traveling audio professionals.

MixerFace includes two boutique mic preamps with independent gain controls and LED level monitoring, 48V phantom power, Hi-Z inputs for guitar and bass, and more into a handheld device the size of a passport! By  transforming your smartphone into a portable recording studio MixerFace creates an end-to-end mobile recording solution for journalists, podcasters, voiceover artists, videographers and touring musicians — anyone who records on the go.


MixerFace R4 has two Neutrik™ combo inputs, which accommodate microphones, line level instruments, guitars or bases. You can plug your guitar straight in. But R4 is also a versatile mixer. I has an Auxiliary stereo input that can be mixed in right on the top panel. So if you want to add a drum machine or another mixer, it’s there. R4 also has Balanced outputs, an Unbalanced stereo output and a Headphone output. The top panel gives easy access to all of the adjustments with familiar analog pots. No searching through menu pages to find the right adjustment — quick and easy control is always at your fingertips. R4 can work as a Mixer even if you’re not using it to record!

QSG, Page 1

QSG, Page2

  

Recorder QSG, Page 1

Recorder QSG, Page 2

User Manual

PRODUCT DETAILS

MixerFace R4 has the footprint of a passport

MixerFace R4 mounts to a mic stand for portable use

Lightweight and portable, MixerFace R4 feels at home on a DSLR video shoot

MixerFace R4 mounts to a tripod, making it easy to position it just right

You can even record with time code with MixerFace R4

MixerFace has a 1/4-20 tripod nut and can mount on camera

Improve the audio quality of your videos by using MixerFace as mic preamp

Podcasting on location with MixerFace R4

Interviewing a remote guest with MixerFace R4

Narrating voiceovers and radio promos with MixerFace R4

MixerFace R4 works with a variety of apps, including GarageBand

MixerFace R4 is great for practicing music or recording acoustic instruments

MixerFace R4 can charge from any standard USB charger in the world

The internal rechargeable battery in MixerFace R4 lasts for an entire shift

MixerFace R4 is an all-around great tool for audio recording

MixerFace R4 comes in an attractive package with accessories

MixerFace R4 has balanced outputs for connection to external powered monitors

  • High Dynamic Range Jasmine Mic Pres™ offer plenty of clean gain
  • Professional series A/D converters deliver high audio quality, on the go
  • Adjustable ZLM, Hi-Z inputs and Low-Cut filters let you cover all bases
  • Custom AmpExtreme™ headphone amp offers clarity, detail and volume
  • Aux input lets you mix in a stereo source for practice or performance
  • Works with Android, iOS, Mac, Windows, and most phones and tablets
  • Works with most smart phone and tablet recording apps
  • Lithium-Polymer battery plays for a full session without refill
  • Aircraft-grade aluminum chassis offers scratch protection and durability
  • Balanced, Unbalanced, and Headphone outputs for true versatility
  • Two versions are available: with and without the internal recorder
Analog Specs
Phantom power 48V±4V, 10mA max per channel
Mic Preamplifier Gain +10dB…+53dB
Mic input impedance 1kOhm
Line input impedance 10kOhm
Hi-Z input impedance 1MOhm
High Pass Filter 130Hz, 6dB/octave roll-off
Freq. Response 20Hz…20kHz ±0.5dB
S/N Ratio >103dB, no weighting
THD+N 0.002%
Crosstalk, 1kHz -95 dB
Aux 3/4 max input level .2 V rms / +9.2 dBu, rel 0 dB FS
Line-level output 1.8 V rms / +7.1 dBu, rel 0 dB FS
Balanced output 3.5 V rms / +13.1 dBu, rel 0 dB FS
Output Impedance 1 Ohm (headphone output)
Output power, Headphone output 400mW (total) at 32 Ohm
Supported Headphones 16…600 Ohm
Gain Switch (set low to feed DSLR) 46dB of gain reduction
Digital specs
Resolution 16-bit, 24-bit, 32-bit
Sample Rate 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.2 kHz, 192 kHz
Clocking Two custom, mil-spec clocks, 10 ppm precision, 1 ps jitter
Compatibility iPhone, iPad, Android, Mac, Linux, PC. Driver is available for Windows
USB Input USB 2.0, fully compatible with USB 3.1
General Specs
Mic Preamps Custom-desinged Jasmine™ technology, dual-stage analog preamlifier
Headphone Amp Custom-designed AmpExtreme™ technology with bipolar power supply
AC Adapter Supports standard 5V chargers / adapters with a USB “micro B” cable
DC Powering/Charging +5V from adapter, such as iPad charger. 2A or more recommended
Analog Supplies Battery-isolated, triple-filtered ±7V analog power supply rails
Digital Supplies Five independent, high-efficiency switch mode power supplies
Chassis Material Aircraft-grade aluminum, hard-anodized for scratch resistance, black
Rechargeable Battery Li-Polymer, 8 hours play/record time (varies with phantom-powered mics)
Unit Dimensions: 121mm (4.76″) (L), 70mm (2.76″) (W), 36mm (1.42″) (H)
Unit Weight: 260 grams (9.1 ounces)
Box Dimensions: 200mm (7.87″) (L), 131mm (5.16″) (W), 42mm (1.65″) (H)
Box Weight: 455 grams (1 lb)
Included accessories Quick Start Guide, Felt carry pouch, Cable for charging or USB audio
Specifications subject to change without notice as we continue to improve the product and production process
Your smartphone is an amazing audio production tool. Many apps let you edit, add EQ, dynamics and then upload your audio online in minutes. But how do you get quality audio into the phone in the first place? Now it’s simple! Set an R4 on your coffee table, connect a mic and the phone, start your favorite recording app and you’re recording — it’s that easy! Have a particular vocal mic that suits your voice? No problem. Mixerface offers 48v phantom power to accommodate any high-end condenser. The custom designed Jasmine Mic Pres™ deliver a world-class signal, designed to capture every nuance of the performance. MixerFace R4 is a professional Mobile Recording Interface™. It delivers broadcast-level audio quality.
This hand-held recording marvel packs a number of features previously available only in studio interfaces, into an ideal form-factor for traveling audio professionals. MixerFace includes two boutique mic preamps with independent gain controls and LED level monitoring, 48V phantom power, Hi-Z inputs for guitar and bass, and more into a handheld device the size of a passport! By  transforming your smartphone into a portable recording studio MixerFace creates an end-to-end mobile recording solution for journalists, podcasters, voiceover artists, videographers and touring musicians — anyone who records on the go.
MixerFace R4 has two Neutrik™ combo inputs, which accommodate microphones, line level instruments, guitars or bases. You can plug your guitar straight in. But R4 is also a versatile mixer. I has an Auxiliary stereo input that can be mixed in right on the top panel. So if you want to add a drum machine or another mixer, it’s there. R4 also has Balanced outputs, an Unbalanced stereo output and a Headphone output. The top panel gives easy access to all of the adjustments with familiar analog pots. No searching through menu pages to find the right adjustment — quick and easy control is always at your fingertips. R4 can work as a Mixer even if you’re not using it to record!

QSG, Page 1

QSG, Page2

Recorder QSG, Page 1

Recorder QSG, Page 2

User Manual

APPLICATION VIDEOS

Watch our CEO Michael Goodman introduce MixerFace R4.

Learn how to charge and turn the unit on. The basics.

Learn how to connect a mic, adjust levels and record voice!

See how we use MixerFace R4 to make a multitrack recording!

Watch Jordan Rudess record voice and two synths with MixerFace R4!

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