Tascam US-100

The US-100 is a simple yet high-quality USB 2.0 audio interface perfect for people getting started with recording. It features a microphone input as well as instrument level input for direct recording guitar or bass. Stereo line inputs are provided, and can be switched to phono-level to connect a favorite turntable to digitize a vinyl collection. All of this is housed in a solid aluminum chassis to withstand daily use from the road to the dorm room.

As a 48-kHz/16-bit stereo audio interface, the US-100 connects to and is powered by a Mac or Windows computer using USB 2.0. It offers a 3.5-mm stereo headphone output and zero-latency input monitoring as well as a separate control to adjust the balance between audio input and computer sound. A free copy of Audacity software is included to start recording right away.

Main Features

  • USB audio interface with two input and output channels
  • 44.1/48 kHz, 16-bit resolution
  • Balanced microphone input (XLR or TRS)
  • Guitar input with separate connector on front panel (TRS)
  • Unbalanced stereo line input (RCA), switchable to RIAA phono for direct connection of analogue turntables
  • Ground terminal for turntables
  • Unbalanced stereo line output (RCA)
  • Headphones output (mini-jack)
  • Direct monitoring function allows latency-free input monitoring
  • Power supplied by USB connection – no AC adapter required
  • Operates using standard Windows and Mac OS X audio drivers
  • Audacity recording software included


Inputs and outputs
Microphone input (XLR, balanced) XLR-3-31 (1 = GND, 2 = HOT, 3 = COLD)
  Input impedance 2.2k Ω or more
  Nominal input level –62 dBu to –23 dBu
  Maximum input level –7 dBu
Microphone input (TRS, balanced) 6.3-mm TRS jack
(Tip = HOT, Ring = COLD, Sleeve = GND)
  Input impedance 2.2k Ω or more
  Nominal input level –62 dBu to –23 dBu
  Maximum input level –7 dBu
Line input (unbalanced) 2 x RCA
  Input impedance 10k Ω
  Nominal input level –10 dBV (INPUT knob minimized)
  Maximum input level +6 dBV
RIAA Phono input (Line input set to PHONO)  
  Input impedance 47k Ω
  Nominal input level –50 dBV (INPUT knob minimized)
  Maximum input level –34 dBV
Guitar input 6.3-mm jack
  Input impedance 1M Ω
  Maximum input level +3 dBV
Line output 2 x RCA
  Output impedance 200 Ω
  Maximum output level 0 dBV
Headphones output 3.5-mm stereo mini-jack
  Maximum output power 15 mW + 15 mW or more
(32 Ω load, THD+N 0.1% or less)
USB connector USB B type, 4 pin
  Formats USB 2.0 Hi-speed (480 Mbit/s)
USB 2.0 Full-speed (12 Mbit/s, USB 1.1 equivalent)
Audio performance
Frequency response (MIC IN to OUTPUT) 20 Hz – 20 kHz, +1/–2 dB
Noise level (MIC IN to OUTPUT, when direct monitoring) –90 dB(A) (Input 150 Ω terminated, INPUT knob minimized, BALANCE knob INPUT, OUTPUT level –10 dBFS)
Total harmonic distortion (MIC IN to OUTPUT, when direct monitoring) 0.1% or less (INPUT knob minimized, 1 kHz, –7 dBu input, Output level –10 dBFS)
Sampling frequency 44.1/48 kHz
Quantization bit rate 16-bit
System requirements
Supported OS Windows XP 32-bit/64-bit
Windows Vista 32-bit/64-bit
Windows 8 compatibility approved
Mac OS X 10.3.9 or later
Mac OS 10.8 compatibility approved
Drivers WDM (standard Windows driver)
Core Audio (standard Mac OS X driver)
Other specifications
Power supply Supplied from computer by USB
Power consumption 1 W
Dimensions (W x H x D) 150 mm x 41 mm x 128 mm
Weight 0.53 kg
Operating environment temperature 5–35 ºC (41–95 ºF)
Bundled software Audacity (for Windows and Mac OS X)

Design and specifications subject to change without notice.

Last modified: 2015-02-12 12:33:14 UTC