our of TASCAM's Ultra-HDDA mic/line preamps provide up to 57dB of gain with nearly inaudible noise and distortion specs. The audio design features high-performance, musical components like NE5532 op amps for rich sound quality without coloring the source.

The US-4x4 includes class-compliant drivers for plug-and-play operation on Mac OSX and iOS devices like the iPad, and a simple driver adds ASIO compatibility for Windows. MIDI in and out are also included for connecting synths, drum machines, and controllers. The interface includes two DAW applications to choose from - both Cakewalk SONAR X3 LE and Abelton Live Lite 9.

With solid audio specs, iOS compatibility, and an easy-to-read angled design, the US-4x4 is the ultimate 4-channel interface for home, project, and mobile studios.

Functions common to both the US-2x2 and US-4x4

Ultra-HDDA (High Definition Discrete Architecture) mic preamps with 125dBu EIN

NE5532 op-amps used at the audio input and output stages

Up to 96kHz/24-bit recording

Support for Windows and Mac OS X operating systems

USB 2.0 computer connection

Connect with iPads and other iOS devices

+48V phantom power for all inputs

Two switchable high-impedance inputs

Microphone preamp gain range of 57 dB

Direct monitoring function for zero-latency monitoring

Tough all-metal casing for durability

Angled design provides excellent usability on a desktop

Balanced analog TRS output jacks suitable for connection to powered monitors

Standard TRS headphones output jack

Separate controls for line and headphones output volumes

MIDI input and output

Output sources can be selected in the setting panel

Input sound monitoring can be set to stereo or mono

Input muting function eliminates noise from unused inputs

USB class compliant 2.0 support

License cards included for SONAR X3 LE/Ableton Live Lite 9

Confirmed operation with major DAW software (SONAR, ProTools, Cubase, Live, Studio One, Garage Band

Unique features for the US-2x2

Two Ultra-HDDA mic preamplifiers

Two XLR/TRS (MIC/LINE) inputs with full +48V phantom power

Two TRS analog balanced outputs

18mW/ch headphone output

USB bus-powered for mobile recording

Optional AC adaptor available for use with iOS devices

Unique features for the US-4x4

Four Ultra-HDDA mic preamplifiers

Four XLR or TRS (MIC/LINE) inputs with full +48V phantom power

Four TRS analog balanced outputs

Two headphone outputs - each with 45mW/ch output power

Dedicated AC adapter is include

http://tascam.com/product/us-4x4/specifications/