MicroBook II — Studio-grade audio interface for personal recording

Audio I/O

All the I/O you need. And only what you need.

XLR mic input

A transparent preamp worthy of your best mic

Go ahead: plug in your $5,000 microphone. The MicroBook II's exceptionally transparent preamp faithfully preserves the characteristics and nuance of even the finest mics. Control trim, -20 dB pad and 48V phantom power from the digital rotary encoder on the top of the unit, or from the included CueMix FX software.

Hi-Z guitar input

It might as well be a real guitar amp

Without proper impedance levels, direct "DI" guitar input won't sound right when you run it through your guitar amp plug-ins and virtual stomp boxes. The MicroBook II's dedicated "hi-Z" DI guitar input provides high-impedance load characteristics suitable for passive and active pickups alike, to produce authentic guitar tone and feel with your guitar processing software.


Upgrade from AudioDesk (included) to Digital Performer for these world-class guitar effects plug-ins.

"A single XLR mic input feeds a terrific-sounding mic preamp and MOTU's high-quality converters. Live banjo and guitar tracks sounded crisp and clear without shrillness.
Going in the other direction, analog-modeled sawtooth pads were fat and warm."

— Keyboard Magazine


Plug in your iPod and mix live mic and guitar for practicing with backing tracks.

Stereo line inputs

Connect a keyboard or other line input

The MicroBook II analog inputs are designed to be flexible, so that you can address a wide range of recording situations. The line inputs provide proper level matching for keyboards, analog mixers, effects processors, or other gear with either -10 dB or +4 dB reference level.

Multiple separate outputs

A separate mix for each output

The MicroBook II provides three independent stereo output streams from your host software. These feed four physical output pairs: the balanced quarter-inch main outs (2 ch), stereo "mini" line outs (2 ch), phones (2 ch), and the digital S/PDIF out (2 ch), which always mirrors the main outs. Feed the main outs to a pair of powered studio monitors or the club's main system. The line outs can be used for a variety of purposes, either mirroring the main outs or, if you are DJing, perhaps to feed a monitor mixer or separate recorder.

DJ software not included

Professional headphone jack

Put away your earbuds and hear what you are missing

The MicroBook II provides a quarter-inch phone jack equipped with a
high-end D/A converter for studio-grade headphones. All-around audio quality this good deserves professional headphones.

Balanced line level connectors

Protect your sound from environmental noise

Other audio interface brands (even expensive ones) cut corners with unbalanced analog inputs and outputs, which can result in significantly compromised performance well below an equivalent balanced circuit. Not the MicroBook: your balanced I/O connections are well-protected against RF interference, AC hum, and other noise-producing environmental factors.

Digitally controlled analog trim

Analog quality with digital precision

The MicroBook preamp delivers clean sound,
60 dB of gain, and adjustments in approximately
1 dB increments using the top-panel digital encoder or the on-screen CueMix software. The gain adjustment itself is smooth because it is analog, but the digital control gives you both precision and the ability to save and recall trim settings. So you get the best of both worlds: analog trim with digital precision and control. Trim is adjusted at the input, before the mixer, so it applies to all mixes. Mix levels are controlled separately from trim, so you never sacrifice sound quality for a balanced mix.


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