D01268420A US-20x20 USB Audio MIDI Interface with Mic Pre/Mixer REFERENCE MANUAL Before connecting this unit to a computer, you must download and install dedicated software on the computer.
Contents 1 – Introduction...............................................3 Features................................................................................... 3 Conventions used in this manual................................... 3 2 – Names and functions of parts...................4 Front panel............................................................................. 4 Rear panel............................................................................... 5 3 – Installation.....................
1 – Introduction Features • Ultra-HDDA (High Definition Discrete Architecture) mic preamps with −125dBu EIN • 8 Ultra-HDDA mic preamps, 8 XLR/TRS inputs and 2 TRS input jacks • Three switchable modes: interface, mic preamp, mixer • Support for high-resolution recording formats up to 24-bit/192kHz • Supports Windows and Mac • Connect with computers using USB 3.0 (Windows 10 only) • Connect with iOS devices including iPad • Can provide +48V phantom power • Supports direct guitar input.
2 – Names and functions of parts Front panel 1 STANDBY/ON switch and indicator Press to turn the unit on and to put it into standby. The STANDBY/ON indicator lights green when the unit is on. 2 MODE button and indicators Use to change the operation mode. (See “7 – Operation modes” on page 28.) MIC PRE This lights when the unit is operating as a microphone preamp. AUDIO I/F This lights when the unit is operating as an audio interface. MIXER This lights when the unit is operating as a digital mixer.
2 – Names and Functions of Parts Rear panel w COAXIAL IN jack This digital audio input jack complies with the S/PDIF standard. e USB port Use the included USB cable to connect the unit to a computer or iOS device (supports USB 2.0/3.0). CAUTION • The included USB cable (USB 2.0 or USB 3.0) that can be used depends on the the computer and OS you are using. (See “Computer connections” on page 12.) • USB 1.1 is not supported.
3 – Installation System requirements Check the TEAC Global Site (http://teac-global.com/) for the latest information about supported operating systems. Windows 88 Supported operating systems Windows 10 32-bit Windows 10 64-bit Windows 8 (including 8.1) 32-bit Windows 8 (including 8.1) 64-bit Windows 7 32-bit SP1 or later Windows 7 64-bit SP1 or later 88 Computer hardware requirements Windows computer with a USB 2.0 or USB 3.
3 – Installation Installing the Windows driver 7. Click the “Install (I)” button. CAUTION • Complete installation of the Windows driver on the computer before connecting the unit to it with the USB cable. • If you already connected the unit to the computer using the USB cable before installing the Windows driver and the Found New Hardware Wizard launched, close the message and disconnect the USB cable. 88 Windows driver installation procedures 1.
3 – Installation Installing the Mac Settings Panel NOTE • Install the Mac Settings Panel on the computer before connecting the unit to it with the USB cable. • During installation of the Mac Settings Panel, a warning message such as “'US-20x20.pkg' can't be opened because it was not downloaded from the Mac App Store.” might appear. If a message like this appears, follow the instructions in “Working with Gatekeeper” on page 8 and then proceed with the installation. 6.
3 – Installation When the “'US-20x20.pkg' can't be opened because it was not downloaded from the Mac App Store. Are you sure you want to open it?” security warning message appears, click the “Open” button. Uninstalling the dedicated software NOTE Normally, there is no need to uninstall a driver or Settings Panel. Follow these procedures if a problem occurs or you no longer intend to use the unit with the computer.
4 – Preparation Attaching the rack mount angles In order to prevent the cord from becoming disconnected during use, wrap it around the cord holder when connecting it. Before mounting this unit in a rack, you must remove the frame pieces and install the included rack mount angles. Follow these procedures to attach the rack mount angles. (Prepare a Phillips screwdriver in advance.) 1.
5 – Connections Examples of connections with other equipment Guitar Drums Bass Guitar Headphones Sound module Digital recorder Powered speakers or amplifier and speakers Computer Drum machine Example using a US-20x20 CAUTION • Before making connections, turn this unit and all equipment to be connected off (standby). • The phantom power switches set four input channels at a time. Do not set phantom power to +48V when connecting an unbalanced dynamic mic.
5 – Connections Computer connections Audio connections Two types of USB cables (USB 2.0 or USB 3.0) are included. Use an included USB cable to connect the unit to a computer USB 2.0 or USB 3.0 port according to the computer and OS that you are using. When the USB connection is working, the USB indicator on the front of the unit lights. Check the TEAC Global Site (http://teac-global.com/) for the latest information about supported operating systems.
5 – Connections Guitar When connecting a guitar or bass guitar directly to this unit, use the IN1 or IN2 jack on the front of the unit. Electronic devices and other audio equipment Connect electronic instruments and other audio equipment to the IN3–IN8 jacks on the front of the unit and the IN9– IN10 jacks on the back of the unit. Set the LEVEL switch for the the IN9–IN10 jacks to −10dBV when connecting unbalanced equipment and to +4dBu when connecting balanced equipment.
6 – Using the Settings Panel You can use the Settings Panel to change and save settings for the various functions of the unit. Opening the Settings Panel Open the Settings Panel installed on the computer to view it on the computer display. You can open the Settings Panel in the following ways. NOTE The Settings Panel cannot be used with an iPad or other iOS device. Windows OS 88 Select the Settings Panel from “All Programs” or “All Windows 7 1.
6 – Using the Settings Panel MIXER page Windows Settings Panel screen NOTE When the unit is in MIC PRE mode, you cannot make settings on the “MIXER” page even if you click the “MIXER” tab. (See “Using the unit as a microphone preamp” on page 28.) 1 EQUALIZER This unit has a 4-band equalizer (with HIGH, HIGH MID, LOW MID and LOW bands). Use the equalizer to increase or decrease the levels of specific frequency ranges.
6 – Using the Settings Panel 2 COMPRESSOR When the input volume exceeds the THRESHOLD level, the input volume is compressed, reducing output volume variation. For example, by reducing the levels of sounds that are high level, lower level sounds become relatively louder, creating a more even volume level throughout and a more sustained sound. (See “COMPRESSOR display area overview” on page 19.) Click the Select (5) button of a channel to make compressor settings for it.
6 – Using the Settings Panel w MUTE buttons Click a MUTE button to mute that channel. These buttons light for channels that are muted. (Default: off ) NOTE In addition to turning the MUTE button on and off, channels will be automatically muted and unmuted when SOLO buttons are used e Pan sliders Use to adjust the stereo positions of the signals input to each channel. Use the mouse to click and drag a pan slider left or right to adjust the stereo position.
6 – Using the Settings Panel s AUX MASTER 2–4 knobs and indicators Use these to adjust the send master levels of the signals sent to the AUX 2–4 buses. Range: inf to 6 dB (default: 0 dB) Use the mouse to click and drag the 2–4 knobs up or down to adjust the send levels. While dragging the mouse, the value being adjusted is shown below and to the right of the 2–4 knobs. The indicator lights blue at levels of 0 dB or less and yellow at levels from 0 dB to 6 dB.
6 – Using the Settings Panel COMPRESSOR display area overview When the input volume exceeds the THRESHOLD level, the input volume is compressed, reducing output volume variation. For example, by reducing the levels of sounds that are high level, lower level sounds become relatively louder, creating a more even volume level throughout and a more sustained sound. REVERB display area overview This effect adds reverberations to the original sound.
6 – Using the Settings Panel LINK button overview When a LINK button on the “MIXER” page is turned on/off, the settings differ according to whether the stereo link is enabled or disabled. The details of the settings are as follows.
6 – Using the Settings Panel INTERFACE page Status display area This shows the current status of the unit.
6 – Using the Settings Panel zation becomes impossible, “Unlock” will appear for the Digital Input Status item and the unit's MODE indicator will blink. • When connecting multiple digital devices to the US-20x20, synchronize them to a system word clock and input word clock supplied by the master clock device to the US-20x20. OUTPUT SETTING page 2 Internal Sample Rate Set the sampling frequency of the unit's internal clock. Options: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.
6 – Using the Settings Panel NOTE The same signals are output from the PHONES 1 and PHONES 2 jacks as the output signals selected in the output signal selection area for LINE OUT 1 and LINE OUT 2. 3 Status display area This shows the connections between the signals selected in the output signal selection area (2) and the output connectors. Using the Settings Panel View menu Initializing the Settings Panel You can reset all settings in the Settings Panel.
6 – Using the Settings Panel oo OPT 5: COMPUTER 17 oo OPT 6: COMPUTER 18 oo OPT 7: COMPUTER 19 oo OPT 8: COMPUTER 20 The following “OUTPUT SETTING” page items when the unit is in MIXER mode oo LINE OUT 1: MASTER L oo LINE OUT 2: MASTER R oo LINE OUT 3: AUX 1 oo LINE OUT 4: AUX 2 oo LINE OUT 5: AUX 3 oo LINE OUT 6: AUX 4 oo LINE OUT 7: AUX 1 oo LINE OUT 8: AUX 2 oo LINE OUT 9: AUX 3 oo LINE OUT 10: AUX 4 oo COAX L: MASTER L oo COAX R: MASTER R oo OPT 1: AUX 1 oo OPT 2: AUX 2 oo OPT 3: AUX 3 oo OPT 4: AUX 4 o
6 – Using the Settings Panel Using the SceneMemory menu Use the “SceneMemory” menu to save the current Settings Panel settings in a scene memory or to initialize those settings. Saving Settings Panel settings You can save the current Settings Panel settings as a scene memory. CAUTION Only one set of Settings Panel settings can be saved in each scene memory. For this reason, saving settings will erase the previously saved settings. 1.
6 – Using the Settings Panel Loading Settings Panel settings You can change the current Settings Panel settings by loading settings stored in a scene memory. CAUTION After loading a scene memory, you cannot restore the previous settings. You can save the current settings in a different scene memory beforehand if you like. 1. Open the “SceneMemory” menu from the menu bar, and click the name of the scene memory to be loaded to open a submenu. 2.
6 – Using the Settings Panel Resetting all scene memories You can reset the 10 scene memories to the default values. CAUTION After resetting, you cannot restore the previous settings. 1. In the menu bar, open the “SceneMemory” menu, and click “Initialize Memory”. Saving Settings Panel settings to the unit You can save the current Settings Panel settings to the unit. 1. In the menu bar, open the “SceneMemory” menu, and click “Save into the unit”.
7 – Operation modes Press the MODE button on the front of the unit to change the operation mode used. The MODE indicator lights for the currently active operating mode. This unit has the following three operating modes. • MIC PRE The unit operates as a microphone preamp. • AUDIO I/F The unit operates as an audio interface. • MIXER The unit operates as a digital mixer.
7 – Operation modes Input and output channels in mic preamp mode In mic preamp mode, the routings between input and output channels are fixed as shown below. The input channels that can be output from the OPTICAL OUT jacks depends on the set sampling frequency. Input 44.1/48 kHz 88.2/96 kHz 176.
8 – Application Guide In this chapter, we explain how to set some audio applications for use with this unit. DAW software The ways that settings are made differ among DAWs. When using a DAW, consult its operation manual. Windows Media Player Windows 10 1. Quit all applications, right-click the Start button menu and open the Control Panel. 2. Open “Sound”. Windows 8 1. Quit all applications and right-click the Start screen and then click the All apps button to open the Apps screen. NOTE In Windows 8.
8 – Application Guide Windows 7 1. Quit all applications and open the Control Panel from the Start button menu. 2. Open “Sound”. NOTE If you do not see this item, click Hardware and Sound. Mac OS X and iTunes 1. Open the Utilities folder in the Applications folder, and double-click “Audio MIDI Setup”. Then open the “Audio Devices” window. 2. Click “US-20x20” to select it and right-click or control-click it. Then, click “Use this device for sound output” in the pop-up menu.
9 – MIDI Implementation Chart 88 MIDI Implementation Chart Function Basic channels Transmit Recognize When power on × × Settable × × When power on × × × × Thru Thru Messages Mode Remarks Thru Altered .................... Range × × Note on × × Note off × × Polyphonic × × Channel × × Pitch bend × × Thru Control change × × Thru × × Note number Velocity Aftertouch Program change Settable range System exclusive System common System real-time Other ..............
10 – Troubleshooting Please read this chapter if you are unable to use the unit properly even after setting it up following the procedures in this manual. If you are still unable to resolve your problems please contact TASCAM customer support (see the end of this manual) with the following information about the operating environment and details about the trouble.
10 – Troubleshooting 88 Sound breaks up or there is noise. The processing load on the computer causes sound to break up and noise to occur. Here are some methods to reduce the load on the computer. 1. A wireless LAN and software running in the background, including antivirus software, regularly put processing loads on the computer, which can cause sound to break up and other noise. Stop wireless LAN transmission, antivirus software and other software running in the background when using this unit. 2.
10 – Troubleshooting 88 I am using SONAR and the performance with my 88 I see that the US-20x20 recommends that I change First, make sure that your audio interface is set to ASIO mode: • Press P to open the Preferences window • Click “Playback and Recording” from the left column • Set the Driver Mode to ASIO Windows allows the processor to throttle to half speed when the computer is idle. However, this can affect the performance of DAW recording software.
11 – Specifications 88 Line inputs (balanced, LINE IN 9–10) Ratings 88 Sampling frequencies 44.1, 48, 88.2, 96, 176.4, 192 kHz 88 Quantization bit depth 16/24-bit Input/output ratings When LEVEL switch set to +4dBu Connectors: 6.3mm (1/4") standard TRS jacks (Tip: HOT, Ring: COLD, Sleeve: GND) Input impedance: 10 kΩ Nominal input level: +4 dBu (1.228 Vrms) Maximum input level: +24 dBu (12.
11 – Specifications Control input/output ratings 88 USB Connector: USB 3.0 B type Transfer rate: USB 3.0 Super Speed (5 Gbps) 88 MIDI IN connector Connector: 5-pin DIN Format: standard MIDI 88 MIDI OUT connector Connector: 5-pin DIN Format: standard MIDI 88 WORD IN connector Connector: BNC Input voltage: 2.0 Vp-p – 5.0 Vp-p Input impedance: 75 Ω ±10% Permitted frequency deviation during external synchronization: ±100 ppm Terminal on/off switch 88 WORD OUT connector Connector: BNC Input voltage: 2.
11 – Specifications General Mac OS X 88 Supported operating systems 88 Power OS X Yosemite (10.10.1 or later) OS X Mavericks (10.9.5) OS X Mountain Lion (10.8.5) DC12V AC adapter (GPE248-120200-Z) 88 Power consumption 20W 88 Computer hardware requirements 88 Dimensions Mac with a USB 3.0 or USB 2.0 port With standard frame attached 445 × 59 × 222 mm (W × H × D) With rack mount adapters attached 482.6 × 44 × 222.
11 – Specifications Dimensional drawings 445mm 11.2mm 201mm 9.8mm 88 With standard frame attached (as shipped from the factory) 59mm 432.6mm 482.6mm 12.4mm 197.8mm 12.2mm 88 With rack mount adapters attached 44mm 31.8mm 465mm • Illustrations in this reference manual might differ in part from the actual product. • The external appearance might be changed without notification to improve the product.
TASCAM US-20x20
TASCAM US-20x20
11 – Specifications Level diagrams TASCAM US-20x20 43
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