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User’s Guide ADI-8 DS © RME

9.2 Line Out

The ADI-8 DS has 8 balanced Line outputs on the rear,

provided by 1/4" TRS and a 25-pin D-sub connector. They

have their own output drivers respectively and can there-

fore – in contrary to the inputs – be used simultaneously.

The electronic output stage of the TRS jacks is built in a

servo-balanced design which handles unbalanced (mono

plugs) and balanced (stereo plugs) correctly, automati-

cally adjusting the level reference. The maximum output

level is +21 dBu.

When selecting +24 dBu the LEDs +19 dBu and +24 dBu

are lit at the same time, because the TRS jacks stay at the

+19 setting, while the D-sub connector outputs are oper-

ated in the +24 setting.

The electronic output stage of the D-sub connector does not operate servo-balanced! When

connecting unbalanced equipment, make sure pin 3 of the XLR output is not connected. A

connection to ground can cause a higher THD value (higher distortion)!

The 25-pin D-sub connector follows the pinout known from devices manufactured by Tascam

(pinout see chapter 12.5). Your local dealer will supply analog breakout multicores D-sub to

XLR in Tascam pinout in different lengths. The maximum output level at the D-sub connector is

+27 dBu.

Each output channel has its own 7-segment level meter, so every channel can be checked for

output signal and overloads easily. The level data are taken directly in front of the DA-converter.

The yellow 0 dB LEDs light up 2 dB before full scale level (-2 dBFS) with half brightness, and

full brightness at 0 dBFS.

To maintain an optimum level for devices connected to the analog outputs, the ADI-8 DS inter-

nally uses hi-quality electronic switches, which introduce no additional noise or distortion to the

audio path. D/A REFERENCE allows for a perfect adaptation of all 8 channels to the most often

used studio levels. The different output levels guarantee optimal conversion results, while still

being compatible to any attached analog equipment.

The ADI-8 DS uses the following level references:

Reference 0 dBFS @ Headroom @ +4 dBu Other RME devices

+24 +24 dBu 20 dB -

+19 +19 dBu 15 dB HiGain

+13 +13 dBu 9 dB +4 dBu

+4.2 +4.2 dBu 12 dB at -10 dBV -10 dBV

The setting +4.2 dBu equals -10 dBV with 12 to 15 dB headroom. Set to +24 dBu the ADI-8 DS

is compatible to SMPTE (+24 dBu @ 0 dBFS, +4 dBu with 20 dB of headroom).

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