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The latest in MOTU’s award-winning UltraLite series, the UltraLite-mk4 is a USB audio interface with 40 simultaneous I/O channels (18 in, 22 out). It also delivers exceptional sound quality, new ultra-low latency drivers and expanded DSP for studio-grade mobile audio recording.

Superb audio quality

New for 2018, the UltraLite-mk4 now includes renowned ESS Sabre32™ DAC technology, delivering 123dB dynamic range and the same proven, award-winning audio quality as MOTU’s flagship 1248. Renowned drivers deliver rock-solid performance and industry-leading low latency.

Ultra-low latency

New, optimized drivers for both Mac and PC deliver ultra-low latency performance. With a high-performance DAW such as Digital Performer, the UltraLite-mk4 delivers an astonishing round trip latency (RTL) of 1.83 ms (milliseconds) on OS X and 1.84 ms on Windows over USB (at 96 kHz with a 32-sample host buffer).

 

USB 2 audio class compliant
USB 3 and iOS compatible

Built for studio and stage

Housed in a compact, aluminum-alloy
enclosure you can take anywhere, the
UltraLite-mk4 is equally well-suited
for studio and stage, with or without a
computer. As an interface or mixer, the
UltraLite-mk4 provides 18 ins and 22
outs, for a total of 40 simultaneous
I/O channels.

All the I/O you need

Connect all of your audio gear, including speakers, headphones, mics, guitars, synths, keyboards, drum machines, effects processors and even MIDI devices.

Web app control from any device

Control everything from your laptop, tablet and smartphone

The software that you use to control the UltraLite-mk4 doesn’t reside on your hard drive. It’s a web app served from the hardware itself. This means you can control the UltraLite-mk4 on-board DSP, mixing, device settings, and network audio routing from your favorite web browser on a laptop, tablet or smartphone connected by wire or Wi-Fi to your local area network. Use any web client on any platform – Mac, Windows, Linux, iOS, Android – as long as it shares the same network.

Touch Console

The art of the mix on your touchscreen

Designed specifically for touchscreen operation, Touch Console™ delivers a whole new mixing experience. Access Touch Console from your tablet or smartphone to effortlessly control the powerful 48-channel mixer and effects in the UltraLite-mk4. With large targets for your fingers, multi-touch operation and intuitive design, you can tap, swipe and pinch your way to a perfect mix, every time.

Click here to learn more

Solid Metal Chassis

The UltraLite-mk4 aluminum chassis is lightweight, yet incredibly sturdy and durable, and designed to withstand the rigors of the studio, stage, and tour bus. In a world awash with cheap plastic, the cool touch of the UltraLite-mk4’s metal exterior in your hands is a reassuring reminder that you are holding quality engineering and construction built to last.

Rack mounting brackets

Use included brackets and hex bolts to mount the UltraLite-mk4 on rack rails, as shown here with a companion MOTU micro lite MIDI interface.

Use the included jointer bracket to connect another MOTU half-rack interface (MIDI or audio). You can then mount them together in a standard 19-inch equipment rack.

echnical Specifications

Sample rates	44.1, 48, 88.2, 96, 176.4, 192 kHz
Mic/guitar inputs	2 x combo XLR/TRS mic/guitar inputs Preamp gain: 0 to +60 dB (digitally controlled) Instrument gain: 0 to +30 dB (digitally controlled)
Analog inputs	6 x 1/4″ TRS line inputs (balanced/unbalanced) Max level: +24 dBu (digitally adjustable -96 to +22)
Analog outputs	10 x 1/4″ TRS line out (balanced, DC coupled) Max level: +20 dBu (digitally adjustable -4 to +20) 1 x 1/4″ TRS stereo headphone
Digital I/O	1 bank (8 ch) of ADAT optical at 1x sample rates 1 bank (4 ch) of SMUX optical at 2x sample rates Switchable to stereo TOSLink (optical S/PDIF) 1 x stereo S/PDIF on RCA (up to 96 kHz)
Total I/O	18 in / 22 out (40 total) at 1x sample rates 14 in / 18 out (32 total) at 2x sample rates 8 in / 12 out (20 total) at 4x sample rates
Computer I/O	1 x USB 2.0 audio class compliant USB 3.0 and iOS compatible
Computer I/O channels	64 in/out at 1x (44.1 to 48 kHz) 32 in/out at 2x (88.2 to 96 kHz) 24 in/out at 4x (176.4 to 192 kHz)
MIDI I/O	1 x MIDI IN 1 x MIDI OUT 16 MIDI channels to/from computer host
Headphone	1 x 1/4″ TRS stereo phone (assignable)
Phantom power	2 x individual +48V
Front panel	1 x 1/4″ TRS headphone output 2 x XLR/TRS combo inputs 1 x digital rotary encoders • main/phone vol/pwr 2 x digital rotary encoders • mic/instr input gain 4 x switches • (2) Pad and (2) 48V Phantom pwr 128 x 48 pixel LCD for level meters / menu nav
Power	External 12-18V DC power supply 1.0A max • tip pos or neg
Dimensions and weight	(width x depth x height, enclosure only) 8.6 x 7 x 1.75 inches 22 x 17.75 x 4.5 cm 2.3 lbs / 1.04 kg

Mac System Requirements

• 1 GHz Intel-based Mac or faster
• 2 GB RAM; 4 GB or more recommended
• Mac OS X version 10.8 or later
• Available USB 2.0 or 3.0 port
• A large hard drive (at least 500 GB for recording)

Windows System Requirements

• 1 GHz Pentium-based PC compatible or faster
• 2 GB RAM; 4 GB or more recommended
• Windows 7, 8 or 10
• Available USB 2.0 or 3.0 port
• A large hard drive (at least 500 GB for recording)

Web App Support

• Any web client platform: Mac, Windows, Linux, iOS, Android
• Any web browser: Safari, Firefox, Chrome, Opera, Explorer, etc.

Included Software

• MOTU Discovery App for Mac & PC (finds connected MOTU interfaces)
• MOTU Discovery App for iOS (available from Apple App Store)
• MOTU Pro Audio Control web app (served from the hardware itself)
• MOTU Audio Tools (FFT, oscilloscope, X-Y plot, phase analyzer)
• AudioDesk 4.0 for Mac & PC (separate download)

Operating Systems

• For computer audio I/O: Mac OS X 10.8 or later; Windows 7 or later
• For web app control: Mac, Windows, Linux, iOS, Android

Analog I/O Specifications

	Connector type	Dynamic range (A-weighted)	THD+N (unweighted)	Max level	Trim range (in 1 dB steps)
Line output	1/4″ TRS, balanced, tip hot	123 dB	-112 dB	+20 dBu	24 dB (-4 to +20)
Line input	1/4″ TRS, bal/unbal, tip hot	110 dB	-102 dB	+24 dBu	118 dBu (-96 to +22)
Mic input	XLR, balanced, pin 2 hot	112 dB	-104 dB	+24 dBu (with pad)	56 dB
Phones	1/4″, TRS stereo	112 dB	-94 dB	Max. 80 mw	128 dB

Compatible Mac Software

The UltraLite-mk4 ships with standard Core Audio drivers for Mac OS X for compatibility with virtually all Core Audio-compatible apps, including:

• MOTU Digital Performer
• Avid Pro Tools (version 9 or later)
• Apple Logic Pro
• Apple Logic Express
• Apple Garage Band
• Apple SoundTrack Pro
• Ableton Live
• Presonus Studio One
• Propellerhead Record & Reason
• Steinberg Cubase
• Cockos Reaper
• Native Instruments Kontakt
• Waves stand-alone apps (and plug-ins, via compatible host)

Compatible Windows Software

The UltraLite-mk4 ships with standard ASIO and Wave drivers for Windows 7, 8 and 10 for compatibility with virtually all ASIO- and Wave-compatible audio apps, including:

• MOTU Digital Performer
• Avid Pro Tools (version 9 or later)
• Ableton Live
• Cakewalk Sonar
• Cockos Reaper
• Image Line FL Studio
• Native Instruments Kontakt
• Presonus Studio One
• Propellerhead Record & Reason
• Sony Vegas Pro
• Sony Sound Forge
• Sony Acid
• Steinberg Cubase
• Waves stand-alone apps (and plug-ins, via compatible host)

UltraLite-mk4 Feature Summary

18 x 22 USB audio interface with 40 simultaneous audio channels

2 mic/guitar inputs, 6 line ins, 10 line outs, phone out, S/PDIF digital I/O and 8-channel optical I/O for 18 inputs and 22 outputs.

Superb analog quality with ultra-low latency

Renowned ESS Sabre32™ DAC technology delivers 123 dB dynamic range on analog output. New, optimized drivers deliver rock-solid performance and industry-leading low latency.

DSP mixing and effects processing

Flexible 48-input digital mixer with 7 stereo aux busses, 3 group sends, access to eight network inputs, and DSP effects, including reverb, 4-band EQ, gate, and compression.

Modeled vintage effects processing

Classic reverb. Compression modeled after the legendary LA-2A compressor. EQ modeled after British analog console EQs.

Flexible matrix routing and splitting

Send any input to any output, or multiple outputs. Includes routing to and from the computer.

Web app control

Control everything from your favorite web browser on a laptop or mobile device (table or smartphone) through a shared Wi-Fi network.

Universal connectivity

Connects to any computer with hi-speed USB 2.0 (audio class compliant, compatible with USB 3.0 and iOS). Compatible with all audio software.

Comprehensive metering

The large backlit LCD lets you view all signal activity at a glance with detailed metering for all analog and digital I/O. Access hardware settings from a simple and convenient menu.

AudioDesk

Includes AudioDesk workstation software for Mac and Windows with 24-bit recording, sample-accurate editing and 32-bit mixing and mastering.