Tascam US-4X4HR USB Audio/MIDI Interface - 4 in 4 out

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When two audio channels are not enough

The four-channel US-4x4HR is a member of the Tascam US-HR series of high-resolution USB audio interfaces and an enhanced version of the popular Tascam US-4x4. It provides four mic/line inputs, two of which can alternatively be used for direct input of a guitar or bass, four balanced line outputs, two headphones connectors, and MIDI I/O to your Windows or Mac computer or your iPhone or iPad*. This interface is ideal for multitrack recording of two instruments and two vocalists, for instance, or multi-media production with high demands on simple operation and studio-quality sound. The included loopback function and support for Open Broadcaster Software (OBS Studio), however, makes it also an excellent choice for two-channel podcast creation and live streaming.

Lower noise and distortion – better sound than ever

The versatile US-4x4HR incorporates a wealth of features, including high audio resolution up to 24-bit/192 kHz, ultra-low latency with a Windows buffer size starting at four samples, Ultra-HDDA mic preamplifiers with 48-volt phantom power for superior sound quality with ultra-low noise, a robust USB Type C connector, and a rich assortment of included software to start producing stunning audio right away.

Tascam US-4x4HR

Usability is key

All US-HR models offer a unique dye-cast aluminum honeycomb structure on the side panels with a slight upward tilt. This design not only results in a sleek, eye-catching design, it also provides just the right amount of weight so the interface won’t move when cables are connected or disconnected. Equally important, the upward tilt offers the ergonomic benefit of being angled in such a way as to make the interface easy to work with.

With four microphone preamps for multi-mic setups, four configurable balanced outputs, superb sound quality and easy operation, the US-4x4HR is the ideal choice for the demanding musician, producer or home-recordist requiring more than two audio channels.

Features at a glance

  • Advanced version of our popular US-4x4 with even better sound quality
  • Provides four audio inputs and four audio outputs as well as a MIDI interface to a Windows or Mac computer or iOS device
  • Audio resolution up to 192 kHz / 24 bit
  • USB Audio Compliance 2.0 for iOS connection

Hardware features

  • Four analogue mic/line inputs on individual XLR and TRS balanced connectors
  • High-quality Ultra-HDDA (High Definition Discrete Architecture) microphone pre-amps with ultra-low noise (EIN: –128 dBu)
  • Wide input gain range of 56 dB, ideal for dynamic microphones
  • Switchable 48-Volt phantom power on XLR inputs
  • TRS inputs 1/2 can each be switched to instrument-level for direct recording of guitar or bass
  • Four line outputs (balanced TRS)
  • Direct monitor option for low-latency monitoring
  • Monitor mix control for adjusting the level balance between signals from external devices and signals from the computer
  • Two headphones outputs delivering 45 mW per channel
  • Independent level controls for line and phones outputs
  • MIDI input/output
  • Standalone operation as a simple preamplifier for practice sessions and more
  • Rugged aluminum body
  • Angled industrial design for ease-of-use on a desktop

Software features

  • In-house developed driver for Windows devices ensures stable operation with low latency
  • The buffer size for Windows can be selcted up from 4 samples to facilitate a recording environment with ultra-low latency
  • Each input can be switched on/off individually
  • Input monitor mode can be selected between stereo and mono
  • You can select which signals are output at the line outputs
  • A loopback function allows two audio channels from the computer to be merged with the input signals and send this mix to the streaming or communication software
    • Input and computer signals can each be selected between stereo and mono
    • A slider lets you adjust the broadcast level
  • Switchable auto power save mode to reduce battery consumption on the laptop/tablet computer in mobile use
  • Automatic update function available for software, driver and firmware updates (you can install new updates with the press of a button)
  • Bundled with Cubase LE and Cubasis LE3, IK Multimedia SampleTank 4 SE and Antares Auto-Tune Unlimited (free 3-month subscription)
  • Compatible with major DAW software

Supported Operating Systems


Windows 10 (October 2020, Version 20H2)

Windows 10 (May 2020 Update 2004)

Windows 10 (November 2019 Update 1909)

Windows 10 (May 2019 Update 1903)

Windows 8.1

Windows 7


macOS Catalina (10.15)

macOS Mojave (10.14)

macOS High Sierra (10.13)


iOS 14 / iPadOS 14

iOS 13 / iPadOS 13

iOS 12

iOS 11


Audio resolution
Sampling frequencies
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
Quantization bit depth
Analogue inputs
Mic inputs (balanced)
XLR-3-31 equivalent
(1: GND, 2: HOT, 3: COLD)
Input impedance
2.2 kΩ
Rated input level
–7 dBu (0.346 Vrms)
Maximum input level
+10 dBu (2.449 Vrms)
Gain range
56 dB
Instrument inputs (unbalanced, MIC/LINE INST switch set to INST)
6.3-mm standard TS stereo jacks
(Tip: HOT, Sleeve: GND)
Input impedance
≥1 MΩ
Rated input level
–6 dBV (0.501 Vrms)
Maximum input level
+10 dBV (3.162 Vrms)
Gain range
56 dB
Line inputs (balanced, MIC/LINE INST switch set to MIC/LINE)
6.3-mm standard TRS stereo jack
(Tip: HOT, Ring: COLD, Sleeve: GND)
Input impedance
10 kΩ
Rated input level
+4 dBu (1.228 Vrms)
Maximum input level
+20 dBu (7.75 Vrms)
Gain range
56 dB
Analogue outputs
Line outputs (balanced)
6.3-mm standard TRS stereo jacks (Tip: HOT, Ring: COLD, Sleeve: GND)
  Output impedance
210 Ω
  Rated output level
+4 dBu (1.228 Vrms)
  Maximum output level
+20 dBu (7.746 Vrms)
Headphone output (PHONES)
6.3-mm standard stereo jack
  Maximum output power
45 mW + 45 mW or higher (THD+N 1% or less, into 32 Ω load)
Control inputs/outputs
MIDI IN connector
5-pin DIN
MIDI standard
MIDI OUT connector
5-pin DIN
MIDI standard
4-pin USB, Type C
  Transfer rate
USB 2.0 High Speed (480 MBit/s)
Audio performance
Mic amp EIN (equivalent input noise)
≤−128 dBu (150 Ω termination, GAIN knob at maximum)
Frequency response, MIC/LINE input
  44.1 kHz / 48 kHz
20 Hz – 20 kHz, +0 dB/−0.4 dB (JEITA)
  88.2 kHz / 96 kHz
20 Hz – 40 kHz, +0 dB/−0.4 dB (JEITA)
Frequency response, LINE output

  44.1 kHz / 48 kHz
20 Hz – 20 kHz, +0.2 dB/−0.1 dB (JEITA)
  88.2 kHz / 96 kHz
20 Hz – 40 kHz, +0.2 dB/−0.4 dB (JEITA)
S/N ratio
110 dB (MIC input, GAIN knob at minimum, 20-kHz SPCL LPF, A-weighted)
108 dB (LINE input, GAIN knob at minimum, 20-kHz SPCL LPF, A-weighted)
110 dB (LINE output, MONITOR knob at maximum, 20-kHz SPCL LPF, A-weighted)
Distortion (THD+N)
0.0013 % (MIC IN, 1 kHz sine wave, −5 dBFS input, GAIN knob at minimum, 20 kHz SPCL LPF)
0.0011 % (LINE IN, 1 kHz sine wave, −5 dBFS input, GAIN knob at minimum, 20 kHz SPCL LPF)
0.0012 % (LINE OUT, 1 kHz sine wave, −4 dBFS input, MONITOR knob at maximum, 20 kHz SPCL LPF)
Crosstalk attenuation
≥95 dB (MIC/LINE input to LINE output, 1 kHz sine wave, GAIN knob at minimum)
Computer system requirements
  Computer hardware requirements
Windows computer with a USB 2.0 port
  CPU/processor speed
2 GHz or faster dual core processor (x86)
2 GB or more
Important: Operation of this unit was confirmed using standard computers that meet the above requirements. This does not guarantee operation with all computers that meet the above requirements. Even computers that meet the same system requirements might have processing capabilities that differ according to their settings and other operating conditions
  Supported audio drivers
  CPU/processor speed
2 GHz or faster dual core processor
2 GB or more
  Supported audio drivers
Core Audio, Core MIDI
  Supported audio drivers
Core Audio
Important: To connect an iOS device that has a Lightning connector, a genuine Apple Lightning to USB Camera Adapter (sold separately) is necessary.
Power supply and other specifications
Power supply
  When used with a computer
USB bus power or dedicated AC adapter below
  When used with an iOS device
Dedicated AC adapter (Tascam PS-P1220E, DC 12 V)
Power consumption
2.25 W
External dimensions (W × H × D, including protrusions)
296 mm × 65 mm × 160 mm
1.6 kg
Operating temperature range
5–35 °C