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アンプ ATI Audio DDA-106 SERIES 2のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。ATI Audio DDA-106 SERIES 2 7 ページ。 192khz aes/ebu digital audio distribution amplifiers

OUTPUT DRIVERS

DDA-106XLR units are equipped with balanced, 110-ohm, transformer coupled

outputs and XLR type connectors. DDA-106BNC units use the alternative 75-

ohm unbalanced outputs to BNC coax connectors. The XLR outputs are in full

compliance with specification AES3-1992 and the BNC outputs are in

accordance with the recommendations of AES-3id-1995. XLR outputs are

transformer coupled for ground isolation.

Power transformer primary windings are paralleled for 115VAC or wired in series

for 230VAC. Internal jumpers allow field modification if necessary. See below for

voltage conversion instructions.

INSTALLATION

LOCATION

To avoid addition of jitter (timing variations) to the digital bitstream, which could

cause noise and distortion in the recovered audio, avoid locating the DDA in

close proximity to a high energy, high frequency switching type power supply or a

power amplifier that utilizes a switching supply. If possible, do not power both

devices from the same AC power line.

Expensive components start to die at internal temperatures above 70°C (158°F).

We recommend that you maintain rack temperatures below 50°C (122°F) to

prevent excessive internal temperature buildup. This is another good reason not

to mount the DDA directly above that 500W power amplifier.

POWER

If it is necessary to convert a unit wired for 115VAC to 230VAC operation, unplug

the unit from the power source, remove the cover mounting screws and locate

the jumpers next to the power transformer. Clip the jumpers 1-2 and 3-4 (don't

unsolder), jumper from 2-3 carefully soldering together the free ends of 2-3

previously clipped. This procedure is recommended to avoid soldering damage to

the multi-layer PC board.

WIRING

XLR types require special controlled impedance, 110 ohm, low loss, foil shielded,

twisted pair cables. Standard audio cable is not recommended except for runs of

only a few feet. Belden and most other cable manufacturers offer special digital

audio cabling for this application. With equalization, cable runs of 300 meters

(about 1000 feet) should be achievable. BNC types use 75-ohm coax (RG59).

Select a cable for losses less than 20dB at 12MHz (for data rates up to 96kHz) at

the maximum distance you require. Runs up to 1000 meters should be readily

achievable with low loss coax.

ATI Audio Inc.

■ Tel: 856-626-3480

Fax: 856-504-0220

www.

audio.com

■