US-20x20 Celesonic

USB3.0 Audio MIDI Interface with Mic Pre/Mixer

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.

About mic preamps

This model has been discontinued in North, Central and South America.
Please check the availability with your local distributors in other areas.

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, Logic Pro）
RoHS certified
Rack-mount adapter included
Dedicated AC adapter included
USB2.0 cable and USB3.0 cable included

Support for Your US-20x20 Celesonic

Download manuals,
get tutorials, updates and more

LEARN MORE

Spec Description

	US-16x08	US-20x20
Sampling frequency	44.1k/48k/88.2k/96k Hz	44.1k/48k/88.2k/96k/176.4k/192k Hz
Quantization bit rate	16/24bit
Analog audio inputs (Front)
MIC IN (BALANCED)	IN 1-8
Connector	XLR-3-31(1:GND, 2:HOT, 3:COLD)
Input impedance	2.4k ohms
Nominal input level
GAIN:MAX	-68dBu (0.0003Vrms)
GAIN:MIN	-12dBu (0.195Vrms)
Maximum input level	+8dBu (1.947Vrms)
Gain	56dB
INST IN (UNBALANCED)	IN 9-10	IN 1-2
Connector	6.3mm(1/4") TS-jack(T:HOT, S:GND) (When set to "INST" at LINE/INST switch)
Input impedance	1M ohms or more
Nominal input level
GAIN:MAX	-57dBV (0.0014Vrms)	-68dBV (0.0004Vrms)
GAIN:MIN	-12dBV (0.251Vrms)
Maximum input level	+8dBV (0.2512Vrms)
Gain	45dB	56dB
LINE IN (BALANCED)	IN 9-10 (When set to "LINE" at LINE/INST switch)	IN 3-8
Connector	6.3mm(1/4") TRS-jack(T:HOT, R:COLD, S:GND)
Input impedance	10k ohms
Nominal input level
GAIN:MAX	-41dBu (0.0069Vrms)
GAIN:MIN	+4dBu (1.228Vrms)
Maximum input level	+24dBu (12.282Vrms)
Gain	45dB	56dB
Analog audio inputs (Rear)
LINE IN (UNBALANCED)	IN 11-16	IN 9-10
Connector	6.3mm(1/4") TS-jack(T:HOT, S:GND) (When set to "-10dBV" at LEVEL switch)
Input impedance	10k ohms or more
Nominal input level	-10dBV (0.3162Vrms)
Maximum input level	+10dBV (3.162Vrms)
LINE IN (BALANCED)	IN 11-16	IN 9-10
Connector	6.3mm(1/4") TRS-jack(T:HOT, R:COLD, S:GND) (When set to "+4dBu" at LEVEL switch)
Input impedance	10k ohms
Nominal input level	+4dBu (1.228Vrms)
Maximum input level	+24dBu (12.1282Vrms)
Digital audio inputs
COAXIAL
Connector	-	RCA pin jack
Format	-	IEC60958-3(S/PDIF)
Input impedance	-	75 ohm
Input level	-	0.5Vp-p / 75 ohm
OPTICAL (S/MUX)
Connector	-	OPTICAL (JEITA RC-5720C)
Format	-	Multi-channel optical format (S/MUX4 is available in 88.2k/96k/176.4k/192k Hz)
Analog audio outputs
LINE OUT (BALANCED)	OUT 1-8	OUT 1-10
Connector	6.3mm(1/4") TRS-jack(T:HOT, R:COLD, S:GND)
Output impedance	100ohms
Nominal output level	+4dBu (1.228Vrms)
Maximum output level	+24dBu (12.277Vrms)
Digital audio outputs
COAXIAL
Connector	-	RCA pin jack
Format	-	IEC60958-3(S/PDIF) / IEC60958-4(AES/EBU)
Input impedance	-	75 ohm
Input level	-	0.5Vp-p / 75 ohm
OPTICAL (S/MUX)
Connector	-	OPTICAL (JEITA RC-5720C)
Format	-	Multi-channel optical format (S/MUX4 is available in 88.2k/96k/176.4k/192k Hz)
MIDI IN / OUT
Connector	Din 5-pin
Format	Standard MIDI format
WORD IN
Connector	-	BNC Permissible frequency deviation at the time of external synchronization
Input voltage	-	2.0Vpp to 5.0Vpp
Input impedance	-	75 ohm +/-10%
Input level	-	+/-100ppm
WORD OUT
Connector	-	BNC with OUT/THRU select switch
Output voltage	-	2.0Vpp (75ohm loaded)
Output impedance	-	75 ohm +/-10%
Sampling frequency	-	44.1k/48k/88.2k/96k/176.4k/192k Hz
USB
Connector	USB B type 4-pin	USB3.0/2.0 B type
Format	USB2.0 HIGH SPEED mass storage class	USB3.0 SuperSpeed (5Gbps)/USB2.0 HIGH SPEED (480Mbps)
PHONES
Connector	6.3mm(1/4") stereo phone jack
Maximum output level	70mW+70mW or more (THD+N 0.1% or less, 32ohms loaded)
Power	Dedicated AC adapter (GPE248-120200-Z, included)
Power consumption	12W	20W
Dimensions	52(W) ×2.32(H) ×8.62(D) inch 445(W) ×59(H) ×219(D) mm	52(W) ×2.32(H) ×8.7(D) inch 445(W) ×59(H) ×222(D) mm
Weight	2.8kg / 6.11lb	2.7kg / 5.95lb
Operating temperature	5 to 35˚C
Accessories	Rack mount adapter, USB cable, User's manual, warranty card, dedicated AC adapter (GPE248-120200-Z)	Rack mount adapter, USB2.0 cable, USB3.0 cable, User’s manual, warranty card, dedicated AC adapter

Audio performance

Frequency response
LINE OUT(BALANCED)
44.1k/48k Hz	20Hz to 20kHz, +/-0.3dB(JEITA)
88.2k/96k Hz	20Hz to 40kHz, +/-0.3dB(JEITA)
176.4k/192k Hz	-	20H to 80kHz、+/-0.5dB(JEITA)
THD	0.008% or less	0.005% or less
S/N ratio	100dB or more	104dB or more
Crosstalk	100dB or more

Computer system requirements

Windows

Compatible computers	Windows-compatible computer with a USB 2.0 port	Windows-compatible computer with a USB 2.0 or USB3.0 port
CPU type/speed	Dual core/2 GHz or faster
Memory	2GB or more
DRIVER	ASIO2.0, WDM(MME), MIDI	USB Audio Class 2.0, ASIO2.0, WDM(MME), MIDI Note: When using WDM driver, number of output channels from an application has limitation less than 8 channels.
Screen resolution	1280 x 800 Dot or more

Mac

Compatible computers	Apple Mac computer with a USB 2.0 port	Apple Mac computer with a USB 2.0 or USB3.0 port
CPU type/speed	Dual core/2 GHz or faster
Memory	2GB or more
DRIVER	Core Audio, Core MIDI
Screen resolution	1280 x 800 Dot or more

Information

Latest version info
Settings Panel for Windows	V4.00
Settings Panel for Mac	V2.10
Firmware	V2.00

Settings Panel V4.00 for Windows

Buffer Size can now be set from 4 samples.
Scaling to a suitable size now occurs with 4K and other high resolution displays.
Operation stability has been improved.

Documents

Manuals

	Reference Manual V2.10	12-07-2016
	Reference Manual	07-29-2016
	Owner's Manual	07-29-2016

Spec

	Outline (DXF)	07-29-2016

Firmware / Software

Instructions

	Release Note	02-19-2020
	Software/Firmware Update procedures	11-08-2016

Firmware

	Firmware V2.00 for Mac	11-08-2016
	Firmware V2.00 for Windows	11-08-2016

Software

	V4.00 Settings Panel for Windows (Includes driver)	02-19-2020
	V2.10 Settings Panel for Mac	12-07-2016

Compatibility

	Information on the connectivity of TASCAM products with iPhone/iPad USB-C port	06-18-2024	-

Compatible OS

Mac

macOS Big Sur (11),

iOS

iOS 17,iOS 16,iOS 15,iOS 14,iOS 13,iOS 12,iOS 11,iOS 10,iOS 8 ,

iPadOS

iPadOS 17,iPadOS 16,iPadOS 15,iPadOS 14,iPadOS 13,

FAQs

Occasionally, my software says that the US-20x20 is no longer connected. How do I fix this?

Download and install firmware version 1.01 or later for your device from the downloads page.

I'm using OSX Mountain Lion (10.8) and the mixer panel is not working correctly, how do I fix this?

This is fixed in settings panel version 1.01 or later. It's a free update on the downloads page.

I plugged in my interface using the USB3 cable and I don't hear any audio?

As of this writing, USB 3 only works on the Windows 10 OS. TASCAM is using a class-complient driver, which means that we have no control over bug fixes in the OS. Apple is working on this issue and is hoping to fix it in an upcoming update to OSX 10.11 El Capitan. Please note that there is no reduced feature set when working in USB 2 mode, including channel count and latency.

My interface keeps switching itself off, is it broken?

Make sure that the "Auto Power Save" switch on the rear panel is set to off. It is set to on by default (for CE complience.)

I want to use external clocking on the US-20x20 in mic preamp mode, how do I set this up?

You need to connect the US-20x20 to a computer to set clocking, sample rate, and other settings – even in mic preamp mode. Open the US-20x20 Settings Panel application to change this.

When the computer or iOS device etc. goes into sleep mode, the interface USB LED may blink or turn off and not opertate properly when the external device recovers from sleep mode.

Depending on the usage environment, reboot the interface by turning the power off/on again, or disconnect and reconnect the USB cable.

When playing files that are of different sampling frequencies from a computer or iOS device, the audio may not start playing, the beginning of the sound may be cut off, or noise/crashing may occur.

Your device's playback application/software, and playback file frequencies (sampling frequency) may not be matching. Set the frequencies of the playback file and each configuration to be the same, or unify the frequencies of the playback file.

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