Merging Horus User Manual page 15

IOM-HORUS AD8D/AD8DP
These cards have the same specifications as the IOM-HORUS-AD8/AD8P cards and provide
additionally a Line level post Mic-pre "Direct Out" output.
Available in models that work up to 192kHz (AD8D) and DXD/DSD256 (AD8DP)
HORUS-AD8D/AD8DP Key Features
• Removes the need for DI boxes
• Allows build-in Mic splitting variants
HORUS-AD8D/AD8DP Direct Out Section
Frequency response +0/-0.3dB @ Gain 40dB
Max Direct Output level typ.
Output Impedance (Differential)
Dynamic Range (A-weighted, typ)
THD+N (1 kHz) @ +11dBu
Input Connector Pinout
Direct Output Connector Pinout
Gain behavior of the Direct Out section
As the Direct Out output is taken just after the Mic-pre analog section, the gain adjustments are not as
smooth and linear as after the digital conversion. The figure below shows the behaviour of the gain on
the Direct Out (in blue) compared to the gain on the digital side (in red).
Note: on the Direct Out the maximum available gain is + 40.1 dB.
10 Hz –50kHz
+18.5 dBu
< 100 Ω
124.5 dB
< -109dB (0.00035 %)
DB-25 / AES59 (Tascam Ana.)
DB-25 / AES59 (Tascam Ana.)
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Horus User Manual
Page 15