unD6IO
User Manual
Attero Tech LLC 2017
Page 1
614-00029 Rev 02_b
3.2 – Device Specifications
Audio Inputs
Input Types:
Two Balanced and RF filtered
inputs on XLR (Inputs 1/2)
Stereo Unbalanced Inputs on
RCA (Inputs 3/4 A)
Stereo Unbalanced Inputs on
3.5mm TRS (Inputs 3/4 B)
Gain:
-18dB, -3dB, +25dB and
+40dB, software selectable
(Inputs 1/2)
Input
Impedance:
>1.8K Ohms at any gain
(Inputs 1/2)
>10k Ohms (Inputs 3/4 A & B)
Maximum
Input Levels:
+20dBu @ -18dB gain,
+6dBu @ - 3 dB gain,
-23dBu @ +25dB gain
-38dBu @ +40dB gain
(Inputs 1/2)
+12 dBu ( Inputs 3/4 A & B)
Phantom
Power:
+48V, software selectable
(Inputs 1/2 only)
Audio Input Performance
EIN:
-115 dBu (Mic Inputs 1/2)
THD+N:
< 0.02% @ 1kHz for all gain
settings, input signal 3dB
below maximum.
(Mic Inputs 1/2)
<0.01% (Line Inputs 3/4)
Frequency
Response:
20Hz – 20kHz, +/- 1dB
(-18 and – 3 dB gain on Inputs
½)
50Hz – 20kHz +/- 1dB
(+25dB and +40dB gain on
Inputs ½)
20Hz – 20kHz, +/- 1dB
(Inputs ¾ A & B)
Audio Outputs
Output Type:
Two balanced line level with
automatic muting on loss of
Dante
signal
on
6-pin
Depluggable Phoenix
(Outputs ½ B)
Two unbalanced line level
outputs on stereo 3.5mm TRS
(Outputs ½ A)
Attenuation
Range:
Software controlled volume
(0 to -60dB, 1dB increments)
Output
Impedance:
200 Ohms balanced,
100 Ohms unbalanced
Maximum
Output Levels:
+12 dBu at 0dB attenuation
(Output 1/2 A)
+20dBu at 0dB attenuation
(Output 1/2 B)
Audio Output Performance
Dynamic
Range:
>97 dB
THD+N:
<0.01% @ 1kHz, input signal 3dB
below maximum
Frequency
Response
20Hz – 20kHz, +/- 1dB
(-18dB and - 3dB gain)
50Hz - 20kHz +/- 1dB
(+25 and +40 dB gain)