Tascam 20X20 Channel Audio Interface

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USB3.0 Audio MIDI Interface with Mic Pre/Mixer


Celesonic US-20x20

20-in/20-out USB 3.0 Interface with Mic Pre and Digital Mixer Modes


TASCAM’ Celesonic US-20x20 packs 20 channels of analog and digital I/O into a single rackspace with great sounding preamps and USB 3.0/2.0 connectivity. Eight Ultra-HDDA microphone preamps provide 56dB of gain and high headroom to make microphones sound their best. Up to ten channels of digital I/O are included on ADAT and S/PDIF connectors, with word clock also provided for use with external clocks like TASCAM’s CG-1000. MIDI I/O allows use with controllers and synthesizers, and sample rates up to 192kHz/24-bit are supported.

New Update: Settings Panel for Windows

TASCAM USB Audio Interfaces Driver (Settings Panel) software for Windows has been updated to Version 4.00, enabling to build music production environments with ultra-low latency that maximizes the processing power of the computers in use. In this new version, the driver’s stability has been greatly enhanced, the audio buffer size is now selectable up from 4 samples instead of older versions with the default buffer size of 64 samples, and overall usability has been improved.


* Version 4.00 functions are limited to Windows only.


The TASCAM Celesonic US-20x20 is the first USB 3.0 interface to use class-compliant drivers for future-proof use with computers and tablets. A built-in DSP mixer includes parametric EQ and compression on every channel and a stereo reverb send for great-sounding monitor mixes. The DSP mixer can also be used as a live mixer or submixer with computer control. The US-20x20 has three operation modes – audio interface, digital mixer, and 8-channel digital mic preamp –for maximum flexibility.




Ultra-HDDA mic preamps deliver high headroom for dynamic tracks


TASCAM's Ultra-HDDA mic preamps provide up to 57dB of gain with the highest headroom in their class. Meaning your tracks won't be distorted before they even hit your computer, resulting in sweeter mids and deep soundstaging.


Popularized in TASCAM's HS-P82 professional broadcast and film recorders, Ultra HDDA preamps have the performance to handle condenser, dynamic, and ribbon microphones. These versatile preamps also feature line-level inputs for keyboards and other equipment.


Sleek Industrial Design Inspires Creativity


We have applied the engineering expertise from years of making audio interfaces to create products that are both pioneering and practical. The slightly angled Bio-cell side panels provide users with excellent ergonomics and stimulate creativity. An adapter that supports rack-mounting is also included.


DSP mixer with 4-band EQ and compression on each input channel


Utilizing an Analog Devices BlackFin processor, the US-20x20 offers an advanced digital mixer. Every input has 4-band EQ, compressor, and low-cut filter. A stereo reverb processor is provided for dynamic headhone monitoring. The DSP mixer can store up to (10) snapshots as scenes - making it easy to recall mixer settings.


Three selectable modes included: interface/mic preamp/mixer


The versatile Celesonic US-20x20 is an Interface for multitrack recording using a personal computer and DAW, a standalone mic preamp, or a mixer for live performances or mixing keyboards. In mic preamp mode, the Ultra-HDDA preamps are sent to the ADAT Optical and S/PDIF digital outputs at up to 192kHz.


Features at a glance

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

Eight Ultra-HDDA micpres with XLR/TRS and connector, two TRS inputs

3 mode switching of Interface/Mic preamp/Mixer

Up to 192kHz/24-bit recording

Support for Windows and Mac

USB 3.0/2.0 computer connection (USB3.0 requires Windows 10)

Connect with iPads and other iOS devices

+48V phantom power for all inputs

High-impedance inputs available

Input level specifications boast a range of 56 dB for using dynamic mics

Tough metal casing for durability

Angled design provides excellent usability on a desktop

Two standard TRS headphones output jack with 70mW + 70mW output power

Separate controls for line and headphones output volumes

MIDI input and output

Low-latency monitoring via on-board DSP mixer

DSP mixer with 4-band EQ and compression on each input channel(Can be used in Interface/Mixer mode)

On-board Reverb effect ideal for monitoring on interface mode or PA/SR on mixer mode

Patch bay allows outputs to be assigned freely(Can be used in Interface/Mixer mode)

Scenes can store DSP mixer settings (up to 10+1 scenes can be stored and named

Ten TRS analog outputs

S/PDIF coaxial digital input/output connectors

TOS LINK optical digital multichannel input/output connectors (supporting SMUX2 and SMUX4)

BNC word clock input/output connectors

USB class compliant 2.0 support

Confirmed operation with major DAW software (SONAR, Pro Tools, Cubase, Live, Studio One, GarageBand

RoHS certified

Rack-mount adapter included

Dedicated AC adapter included

USB2.0 cable and USB3.0 cable included

Spec description

Sampling frequency44.1k/48k/88.2k/96k Hz44.1k/48k/88.2k/96k/176.4k/192k Hz
Quantization bit rate16/24bit
Analog audio inputs
ConnectorXLR-3-31 (1: GND, 2: HOT, 3: COLD)
Input impedance2.4k
Nominal input level 
GAIN: MAX68dBu (0.0003Vrms)
GAIN: MIN12dBu (0.195Vrms)
Maximum input level+8dBu (1.947Vrms)
Connector1/4" (6.3mm) TS-jack (T: HOT, S: GND)
(when set to "INST" at LINE/INST switch)
Input impedance1M or more
Nominal input level 
GAIN: MAX68dBV (0.0004Vrms)57dBV (0.0014Vrms)
GAIN: MIN12dBV (0.251Vrms)
Maximum input level+8dBV (0.2512Vrms)
(when set to "LINE" at LINE/INST switch)
Connector1/4" (6.3mm) TRS-jack (T: HOT, R: COLD, S: GND)
Input impedance10k
Nominal input level 
GAIN: MAX 41dBu (0.0069Vrms)
GAIN: MIN+4dBu (1.228Vrms)
Maximum input level+24dBu (12.282Vrms)
Analog audio inputs
Connector1/4" (6.3mm) TS-jack (T: HOT, S: GND)
(when set to "10dBV" at LEVEL switch)
Input impedance10k or more
Nominal input level10dBV (0.3162Vrms)
Maximum input level+10dBV (3.162Vrms)
Connector1/4" (6.3mm) TRS-jack (T: HOT, R: COLD, S: GND)
(when set to "+4dBu" at LEVEL switch)
Input impedance10k
Nominal input level+4dBu (1.228Vrms)
Maximum input level+24dBu (12.1282Vrms)
Digital audio inputs 
ConnectorRCA pin jack
FormatIEC60958-3 (S/PDIF)
Input impedance75
Input level0.5Vp-p / 75
Computer system requirements
OSWindows 7(32-bit SP1, 64-bit SP1), Windows 8.0(32-bit, 64-bit), Windows 8.1(32-bit, 64-bit), Windows 10(32-bit, 64-bit)Windows 7(32-bit SP1, 64-bit SP1), Windows 8.0(32-bit, 64-bit), Windows 8.1(32-bit, 64-bit)
Compatible computersWindows-compatible computer with a USB 2.0 or USB3.0 portWindows-compatible computer with a USB 2.0 port
CPU type/speedDual core / 2GHz or faster
Memory2GB or more
DRIVERUSB Audio Class 2.0, ASIO2.0Celesonic US-20x20, WDM(MME), MIDI

Note: When using WDM driver, number of output channels from an application has limitation less than 8 channels.
ASIO2.0Celesonic US-20x20, WDM(MME), MIDI
Screen resolution1280 x 800 Dot or more
OSOS X Mountain Lion(10.8), OS X Mavericks(10.9), OS X Yosemite(10.10)
Compatible computersApple Mac computer with a USB 2.0 or USB3.0 portApple Mac computer with a USB 2.0 port
CPU type/speedDual core / 2GHz or faster
Memory2GB or more
DRIVERCore Audio, Core MIDI
Screen resolution1280 x 800 Dot or more
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