TASCAM / US-4x4HR

A versatile audio interface with 4IN / 4OUT inputs and outputs.

■Accessories
US-4x4HR
AC adapter PS-P1220E
USB cable (Type-A-Type-C)
DAW Software Installation Guide
DAW Plugin Software Installation Guide
Instruction manual (with warranty)

■Specifications
Sampling frequency 44.1k / 48k / 88.2k / 96k / 176.4k / 192k Hz
Number of quantization bits 24 bits
Analog audio input
MIC input IN 1 / IN 2, IN 3 / IN 4
Connector XLR-3-31 (1: GND, 2: HOT, 3: COLD), balance
Input impedance 2.2kΩ
Maximum input level
(GAIN: MIN) + 9dBu (2.183Vrms)
Gain width 56dB
INST input IN 1 / IN 2
Connector 6.3mm (1/4 ") TS standard jack (T: HOT, S: GND), unbalanced
* When the [MIC / LINE INST] switch is set to [INST]
Input impedance 1MΩ or more
Maximum input level
(GAIN: MIN) + 10dBV (3.162Vrms)
Gain width 56dB
LINE input IN 1 / IN 2, IN 3 / IN 4
Connector 6.3mm (1/4 ") TRS standard jack (T: HOT, R: COLD, S: GND), balanced
* When the [MIC / LINE INST] switch is set to [MIC / LINE]
Input impedance 10kΩ
Maximum input level
(GAIN: MIN) + 20dBu (7.746Vrms)
Gain width 56dB
Analog audio output
LINE output 1-2, 3-4
Connector 6.3mm (1/4 ") TRS standard jack (T: HOT, R: COLD, S: GND), balanced
Output impedance 210Ω
Specified output level + 4dBu (1.228Vrms)
Maximum output level + 20dBu (7.746Vrms)
Headphone output
Connector 6.3mm (1/4 ") stereo standard jack
Maximum output level 18mW + 18mW or more
(THD + N 0.1% or less, with 32Ω load)
MIDI IN / OUT
Connector Din 5 pin
Format Standard MIDI format
USB
Connector USB Type-C
Format USB2.0 HIGH SPEED (480Mbps)
Power supply
USB bus power when connected to a computer
Dedicated AC adapter (TASCAM PS-P1220E, included)
Dedicated AC adapter for iOS / iPad OS connection (TASCAM PS-P1220E, included)
Power consumption 2.25W
External dimensions 296 (W) x 65 (H) x 160 (D) mm (including protrusions)
Mass 1.6kg
Operating temperature 5 to 35 ° C
Accessories AC adapter (TASCAM PS-P1220E), USB cable (Type-A-Type-C), DAW software installation guide, DAW plug-in software installation guide, instruction manual (with warranty)



Audio performance
Microphone amplifier EIN (input conversion noise) -128dBu or less
Frequency characteristic
MIC / LINE input
44.1k / 48k Hz 20Hz-20kHz, + 0dB / -0.4dB (JEITA)
88.2k / 96k Hz 20Hz-40kHz, + 0dB / -0.4dB (JEITA)
LINE output
44.1k / 48k Hz 20Hz-20kHz, + 0.2dB / -0.1dB (JEITA)
88.2k / 96k Hz 20Hz-40kHz, + 0.2dB / -0.4dB (JEITA)
Total Harmonic Distortion (THD + N) 0.0013% (MIC IN, 1kHz sine wave, -5dBFS input, GAIN knob minimum, 20kHz SPCL LPF)
0.0011% (LINE IN, 1kHz sine wave, -5dBFS input, GAIN knob minimum, 20kHz SPCL LPF)
0.0012% (LINE OUT, 1kHz sine wave,
-4dBFS input, LINE OUT knob maximum, 20kHz SPCL LPF)
S / N ratio 110dB (MIC IN, GAIN knob minimum, 20kHz SPCL LPF + A-Weight)
108dB (LINE IN, GAIN knob minimum, 20kHz SPCL LPF + A-Weight)
110dB (LINE OUT, LINE OUT knob maximum, 20kHz SPCL LPF + A-Weight)
Crosstalk 95dB or more (MIC / LINE → LINE OUT, 1kHz sine wave, GAIN knob minimum)


Operating conditions
Windows
Compatible PC Windows compatible PC equipped with USB 2.0
CPU / Clock Dual-core processor 2GHz or higher (x86)
Memory 2GB or more
Driver ASIO ASIO2.0, WDM, MIDI
Mac
Compatible PC Mac equipped with USB 2.0
CPU / Clock Dual-core processor 2GHz or higher (x86)
Memory 2GB or more
Drivers Core Audio, Core MIDI
iOS / iPadOS
Driver Core Audio * Apple genuine Lightning-USB camera adapter (sold separately) is required to connect an iOS device equipped with a Lightning connector.


Supported OS
Windows
Windows 10 (October 2020 Update) New, Windows 8.1, Windows 7
Mac
macOS Big Sur New, macOS Catalina, macOS Mojave, macOS High Sierra (10.13)
iOS
iPadOS 14 New, iOS 14 New, iPadOS, iOS 13, iOS 12