Tascam us-4x4 hr

audio resolution
sampling frequencies
44.1 khz, 48 khz, 88.2 khz, 96 khz, 176.4 khz, 192 khz
quantization bit depth
24-bit
analogue inputs
mic inputs (balanced)
xlr-3-31 equivalent
(1: gnd, 2: hot, 3: cold)
input impedance
2.2 ko
rated input level
7 dbu (0.346 vrms)
maximum input level
+9 dbu (2.183 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 mo
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 ko
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 o
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 0.1% or less, into 32 o load)
output impedance
51.5 o
load impedance
16600 o
control inputs/outputs
midi in connector
5-pin din
format
midi standard
midi out connector
5-pin din
format
midi standard
usb
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 o 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, line out 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, line out 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)
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
weight
1.6 kg
operating temperature range
535 c