13
I/O-22 Specifications
Line Input
Dynamic Range
ROTE!:
The Dynamic range depends on the "Peak Input Level" setting.
Unweighted
At -27 to +12 setting, Dynamic range is >98 dB minimum, and >100 dB typical
At -56 to -28 setting, Dynamic range is >83 dB minimum, and >88 dB typical
A-weighted
At -27 to +12 setting, Dynamic range is >101 dB minimum, and >103 dB typical
At -56 to -28 setting, Dynamic range is >86 dB minimum, and >91 dB typical
THD+N (Total Harmonic Dist Noise) (20 Hz - 20 kHz) at maximum input levels
+12 dBu gain setting
-82 dB (0.0079%) maximum, -85 dB (0.0056%) typical
-8 dBu gain setting
-74 dB (0.02%) maximum, -78 dB (0.012%) typical
-28 dBu gain setting
-75 dB (0.02%) maximum, -78 dB (0.013%) typical
Crosstalk (20 Hz - 20 kHz)
-78 dB maximum, -80 dB typical
Frequency Response (20 Hz - 20 kHz)
+0 dB to -1 dB maximum, +0 dB to -0.8 dB typical
Input Impedance
Balanced
10K ohms
Unbalanced
10K ohms
Common Mode Rejection (20 Hz - 20 kHz)
-62 dB maximum, -65 dB typical
Maximum Input Level
ROTE!:
The Input level is continuously variable from -56 dBu to +12 dBu. Internally, there are switches that auto-select based on
the Max RMS Input Level. The maximum input level to achieve 0 dBfs at the A/D converter is shown below, all in-between settings
use software attenuation.
Vrms
30.8 mV, 1.9 V, and 3.09 V
dBu
-28 dBu, -8 dBu, and +12 dBu
dBV
-30.2 dBV, -5.8 dBV, and 9.8 dBV
Line Output
Dynamic Range
Unweighted
> 101 dB minimum, 104 dB typical
A-weighted
>104 dB minimum, 107 dB typical
Channel to Channel Crosstalk (20 Hz - 20 kHz)
102 dB maximum, -104 dB typical
Max Output Level
10 dBu, 7.8 dBv, 2.5 V
(Continuously adjustable from -10 dBu to +10 dBu)
Mute
Relay — infinite attenuation
Frequency Response (20 Hz to 20 KHz)
+0, -1 maximum, -0.6 typical
THD+N
-82 dB (0.079%) maximum, -85 dB (0.056%) typical
Loudspeaker
4 or 8 ohms, 10 watts (not included)
Amplifier
ROTE!:
Output power is determined by the power source. Refer to the specifications in this table for Power Source
Frequency Response (20 Hz to 20 kHz)
+0 dB to -3 dB maximum, +0 dB to -2.5 dB typical
THD+N
4 ohms
-45 dB (0.56%) maximum, -47 dB (0.45%) typical
8 ohms
-50 dB (0.32%) maximum, -52 dB (0.25%) typical
