Tascam us-2x2, Reference Manual

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TASCAM US-2x2/US-4x4
21
11 – Specifications
Audio resolution
8
Sampling frequencies
44.1, 48, 88.2, 96 kHz
8
Quantization bit depth
16/24-bit
Analog inputs
Mic inputs (balanced)
US-2x2 : IN 1-2
US-4x4 : IN 1-4
Connectors : XLR-3-31 equivalent
(1: GND, 2: HOT, 3: COLD)
Input impedance : 2.2 kΩ
Rated input level : −65 dBu (0.0004 Vrms)
(gain knob at MAX)
Rated input level : −8 dBu (0.3090 Vrms)
(gain knob at MIN)
Maximum input level : +8 dBu (1.9467 Vrms)
Gain range
: 57 dB
Instrument inputs (unbalanced)
IN 1-2
(MIC/LINE INST switch set to INST)
Connectors
: 6.3mm (1/4") standard TS stereo jacks
(Tip: HOT, Sleeve: GND)
Input impedance : 1 MΩ or more
Rated input level : −63 dBV (0.0007 Vrms)
(gain knob at MAX)
Rated input level : −6 dBV (0.5015 Vrms)
(gain knob at MIN)
Maximum input level : +10 dBV (3.162 Vrms)
Gain range
: 57 dB
Line inputs (balanced)
US-2x2 : IN 1-2
US-4x4 : IN 1-4
(MIC/LINE INST switch set to MIC/LINE)
Connector
: 6.3mm (1/4") standard TRS stereo jack
(Tip: HOT, Ring: COLD, Sleeve: GND)
Input impedance : 10 kΩ
Rated input level : −53 dBu (0.0017 Vrms)
(gain knob at MAX)
Rated input level : +4 dBu (1.228 Vrms)
(gain knob at MIN)
Maximum input level : +20 dBu (7.75 Vrms)
Gain range
: 57 dB
Analog outputs
Outputs (LINE OUT (BALANCED))
Connectors : 6.3mm (1/4") standard TRS stereo jacks
(Tip: HOT, Ring: COLD, Sleeve: GND)
Output impedance : 110 Ω
Rated output level : +4 dBu (1.273 Vrms)
Maximum output level : +20 dBu (7.75 Vrms)
Headphone output (PHONES)
Connector : 6.3mm (1/4") standard stereo jack
Maximum output
US-2x2 : 18 mW + 18 mW or higher
(THD+N 1% or less, into 32 Ω load)
US-4x4 : 45 mW + 45 mW or higher
(THD+N 1% or less, into 32 Ω load)
Control input/output ratings
MIDI IN connector
Connector : 5-pin DIN
Format : standard MIDI
MIDI OUT connector
Connector : 5-pin DIN
Format: standard MIDI
USB
Connector : 4-pin USB B-type
Transfer rate : USB 2.0 High Speed (480 Mbps)
Audio performance
Mic amp EIN (equipment input noise)
−127 dBu or less ( 150Ω termination, gain knob at MAX)
Frequency response
IN1-IN4
q
LINE OUT (BALANCED), Headphone (HP) output
At 44.1kHz and 48kHz
20Hz : +0dB/−0.3dB (JEITA)
20kHz : +0dB/−0.1dB (JEITA)
20kHz : +0dB/−0.5dB (HP output, JEITA)
At 88.2kHz and 96kHz
20Hz : +0dB/−0.3dB (JEITA)
40kHz : +0dB/−0.3dB (JEITA)
40kHz : +0dB/−2.0dB (HP output, JEITA)
S/N ratio
101 dB or higher ( MIC/LINE input to LINE OUT, gain knob
at MIN, JEITA)
Distortion
0.003% or less ( MIC/LINE input to LINE OUT, 1kHz
sine wave, at nominal input level and
maximum output level, JEITA)
Crosstalk
95 dB or more ( MIC/LINE input to LINE OUT, 1 kHz,
JEITA)