Benchmark DAC1 HDR Manual de Instruções descarregar pdf (Página 18)

DAC2 Series Instruction Manual Rev C Page 18

(including the USB input). The result is that

all digital inputs have identical jitter

performance.

Analog Inputs – RCA Unbalanced (

DAC2 HGC and DAC2 L model

only)

The DAC2 HGC has 2 unbalanced stereo

analog inputs via 2 pairs of RCA connectors.

The analog inputs can be used for devices

such as:

• Phono preamplifiers

• FM Tuners

• Tape Transports

• Analog VCR outputs

• iPod and MP3 devices

• Outputs from analog mixing consoles

Computer Input – USB

The USB input accepts a ‘B-type’ male USB

1.1 or USB 2.0 connector. An ‘A-B type’ USB

cable is provided with the DAC2. The USB

cable connects the DAC2 directly to a

computer’s USB output. The USB interface

utilizes USB 1.1 and USB 2.0 protocol, and is

compatible with both USB 1.1 and USB 2.0

ports.

The USB input supports 44.1, 48, 88.2, 96,

176.4, and 192 kHz sample rates at word

lengths up to 24-bits. The USB also accepts

DSD. The USB interface acts as a ‘native’ USB

audio device and does not require the

installation of any custom drivers if listening

to music up to 96 kHz on either Mac OS X or

Windows. Drivers are required for listening to

music up to 192 kHz and DSD only for

Windows. Drivers are not required for Mac OS

X for 192 kHz and DSD playback.

On USB 1.1, the Benchmark USB interface is

truly a plug-and-play solution. The DAC2 can

begin streaming high resolution 24-bit/96 kHz

audio bit-transparently within seconds after

being plugged into a computer for the first

time. No software or hardware configuration

is required.

The DAC2’s USB 1.1 is designed, tested and

proven compatible with Windows

XP/Vista/7/8, Mac OS X, and iPads using the

30-pin to USB Camera Kit with no driver

installation or system configuration required.

The DAC2’s USB 2.0 is designed, tested and

proven compatible with Windows XP/Vista/7/8

with driver installation. It was also test on

Mac OS X versions 10.6, 10.7, and 10.8 with

no driver installation.

For the up-to-date information about more

recent operating systems and suggestions for

optimization, go to:

www.benchmarkmedia.com/wiki

.

Optical Digital Inputs - D1 and D2

The optical input connector is commonly

known as a TOSLINK connector. The TOSLINK

optical connector used on the DAC2 is

designed to work well at sample rates up to

96 kHz. Maximum word length is 24-bits. All

sample rates between 28 and 96 kHz are

supported. The optical input will accept

professional AES/EBU data formats or

consumer S/PDIF data formats.

Coaxial Digital - D3 and D4

The coaxial inputs use female RCA connectors

that are securely mounted directly to the rear

panel. The input impedance is 75 Ohms.

Maximum word length is 24-bits. All sample

rates between 28 and 195 kHz are supported.

The Coax inputs are DC isolated, transformer

coupled, current limited, and diode protected.

The RCA body is bonded directly to the

chassis to prevent currents in the internal

ground system. This direct bonding also

maximizes RF shielding.

TIP: Shielded 75-Ohm coaxial cable is

required for stable performance. Do not

use 50-Ohm cables or twisted pair

cables, or any non-coaxial cables.

The Coaxial inputs accept AES/EBU or S/PDIF

digital audio formats. AES3-id and SMPTE

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