Benchmark DAC2 DX Manuel d'instructions télécharger pdf (Page 13)

DAC2 DX Instruction Manual Rev B Page 13

Feature Details

UltraLock2™ Clock System

UltraLock2™ provides the outstanding jitter attenuation of the older UltraLock™ system while

providing a higher SNR.

High-Headroom Digital Processing

All digital processing includes at least 3.5 dB headroom above an input level of 0 dBFS. This

unique and important feature prevents all clipping in the digital processing, and provides clean,

smooth, and transparent audio reproduction. Most competing products lack this important feature.

Native DSD Conversion

All DAC2 converters support native DSD conversion. DSD signals can be delivered to the USB or

Coaxial inputs in DoP 1.1 format. The DSD signal is then routed directly to a bank of 1-bit DSD

D/A converters. An array of balanced 1-bit converters are summed together to form each balanced

output.

Asynchronous USB 2.0

The USB interface supports DSD and 192 kHz, 24-bit PCM. The DAC2 generates the conversion

clocks and totally eliminates the USB interface as a source of jitter. No drivers are required for

Apple operating systems. Drivers are provided for Windows operating systems at:

http://www.benchmarkmedia.com/dac/dac2-drivers

Native Asynchronous USB 1.1

The DAC2 has a driverless USB 1.1 mode that supports 96 kHz, 24-bit PCM with most operating

systems. This mode provides quick and easy connection to a wide variety of computers and

tablets.

HGC™ Hybrid Gain Control

HGC™ is Benchmark’s unique Hybrid Gain Control that combines 32-bit digital attenuation with

passive analog attenuation. The dual-domain HGC™ system combines the accuracy of digital

control while preserving dynamic range through the use of passive analog output attenuators.

HGC™ outperforms traditional analog or digital volume controls. Musical details are preserved

over a very wide range of output levels.

Digital inputs are controlled by a 32-bit DSP that feeds a 32-bit signal to the 32-bit conversion

system. The output of the conversion system passes through low-impedance passive output

attenuators that can be configured to match the output range to the sensitivity of the downstream

device.

The volume control is a motor-driven analog potentiometer that supplies a DC control signal to the

32-bit DSP system. The volume control rotates in response to commands from the remote control

while providing the convenience quick and easy manual adjustments. This topology has the look,

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Benchmark DAC2 DX Manuel d'instructions Page 13