Analog Outputs - RME Audio ADI-8 PRO User Manual

Hi-precision 24 bit / 48 khz 8 channel ad / da-converter adat optical / tdif-1 interface digital 24 bit interface / format converter
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6.2 Analog Outputs

The 8 short circuit protected, low impedance and servo balanced line outputs are available as
(stereo) 1/4" TRS jacks and 25 pin D-sub jack. Both are internally connected, and - in contrary
to the inputs - can be used simultaneously. The electronic output stage is built in a servo bal-
anced design which handles monaural and stereo jacks correctly. When used unbalanced it
automatically corrects the gain by 6 dB.
The 25-pin D-sub connector follows the pinout known from devices manufactured by Tascam.
Refer to chapter 11 for a pinout listing. We do not recommend to make such a cable by your-
self, as it is extremely difficult to integrate 8 balanced lines into a small D-sub housing without
shorts. Your dealer will be glad to provide you with a professional Tascam multicore, D-sub to
XLR, made in the length of your choice.
To maintain an optimum level for devices connected to the analog outputs the ADI-8 PRO
includes electronic switches of the newest technology, which introduce no additional noise or
distortion to the audio path. The key OUTPUT LEVEL allows to change the output level of all 8
channels simultaneous to the most often used -10 dBV and +4 dBu.
Each analog output has its own 'Signal Ok' LED, so a signal at the analog outputs is visually
indicated. The green LED begins to light at -40 dBFS in an analog fashion (brighter at higher
levels).
As with the analog inputs the analog output levels do not follow any single standard, but are
designed to maintain a problem-free operation with most other devices. The headroom of the
ADI-8 PRO is defined according to the chosen reference level.
Reference
Hi Gain
+4 dBu
-10 dBV
At +4 dBu a headroom of 9 dB offers a problem-free operation with most devices, and meets
the latest EBU recommendations for Broadcast usage. At -10 dBV 12 to 15 dB headroom are
common practice, each mixing desk operating at -10 dBV is able to send and receive much
higher levels. Hi Gain results in maximum level for professional users who prefer to work bal-
anced and at highest levels.
8
0 dBFS @
+19 dBu
+13 dBu
+2 dBV
User's Guide ADI-8 PRO © RME
Headroom
15 dB
9 dB
12 dB

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