User manual Benchmark DAC2 L Digital to Analog Audio Converter 500-15200-300
Operating instructions and pdf manual for use - Benchmark DAC2 L Digital to Analog Audio Converter 500-15200-300 User manual, User manual Benchmark DAC2 L Digital to Analog Audio Converter 500-15200-300, Benchmark, DAC2, L, Digital, to, Analog, Aud
User manual for Benchmark DAC2 L Digital to Analog Audio Converter 500-15200-300
Manufacturer: Benchmark
Basic description and contents of package
Product classification: Pro Audio - Recording - Monitoring Accessories
Safety instructions
Startup and operation of the monitoring accessories
Tips for setting up your Benchmark
Settings and expert assistance
Contact Benchmark service
Troubleshooting
Warranty information
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User manual for the Benchmark DAC2 L Digital to Analog Audio Converter 500-15200-300
The user manual for the Benchmark DAC2 L Digital to Analog Audio Converter 500-15200-300 provides
necessary instructions for the proper use of the product Pro Audio - Recording - Monitoring Accessories.
The silver DAC2 L Digital to Analog Audio Converter from Benchmark is a low noise, low distortion 2-channel digital to analog converter. This DAC2 converter features two unbalanced RCA stereo pair inputs, two digital audio channel inputs, and two analog balanced outputs. The DAC2 L system supports multi-mode asynchronous USB system. It employs an advanced high-headroom digital filter design and a high sample rate asynchronous USB audio interface with each input fully isolated from interface jitter using the company's UltraLock2 jitter attenuation system. The device performs 32-bit internal processing and conversion and includes 3.5 dB of headroom above 0 dBFS. Each Balanced output is the sum of four balanced 32-bit converters.
All digital inputs on the converter support native DSD conversion. The DoP1.1 open standard is automatically detected by the device on all inputs and the system seamlessly switches to native DSD conversion. The DAC is designed to directly drive power amplifiers and powered speakers. The XLR outputs of the converters feature adjustable low-impedance passive attenuators that can be used to optimize the matching of the converter to the power amplifier or powered speaker. Sonically, the converter has been designed for maximum transparency making it appropriate for professional reference and Hi-Fi critical listening applications alike.
The converter combines active analog gain control with passive low-impedance attenuators, a 32-bit digital gain control, and a servo-driven volume control. Each of the inputs can be controlled by the rotary volume control which also will move in response a remote control (sold separately). None of the digital inputs are ever allowed to pass through an analog potentiometer, and are instead controlled by the unit's 32-bit DSP system for precise L/R balance and imaging with minimal distortion or noise. The passive output attenuators provide gain reduction without compromising the dynamic range of the converter.
The device's Ultralock Jitter attenuation system uses 32-bit DSP processing with 3.5 dB of headroom and a sample rate of 211 kHz to reduce jitter to at least 140 dB below the level of the music and well below the threshold of human hearing to eliminate audible jitter artifacts. The DSP can handle digital signals as high as +3.5 dBFS because the inter-sample peaks found in many commercial releases as the result of signal interpolation can sometimes exceed the 0 dBFs threshold of individual sinusoidal wave samples.
The device's USB system supports USB Audio 2.0, DSD, and USB Audio 1.1. The frequency agile design allows the converter to follow sample rate changes initiated by the computer or media playback software while retaining asynchronous conversion to eliminate unnecessary sources of jitter.
The master clock of the device has a low-jitter design which controls the transfer of audio from the computer to the USB sub-system, then to a buffer in the DAC, and then to the D/A conversion sub-system. This second asynchronous transfer eliminates any traces of jitter that may accumulate as the data is transferred between the USB and conversion subsystems. The synchronous USB system supports USB Audio 2.0 for high resolution 192 kHz and DSD playback. No drivers are required on Mac operating systems and an easy to install driver adds both 192 kHz and DSD capabilities to Windows operating systems.
An Asynchronous driverless USB Audio 1.1 mode can be enabled from the front panel or from the remote control (sold separately) to allow quick plug and play connections to Windows, Mac, iOS, and Linux operating systems. Even when the DAC is powered down, the USB subsystem will remain active to prevent interruption of computer operations and eliminate the need to reconfigure the computer every time the device is turned on.
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Additional parameters of the Benchmark DAC2 L Digital to Analog Audio Converter 500-15200-300:
A-Weighted, 0 dBFS = 20 to 29 dBu: 126 dB Unweighted, 0 dBFS = 20 to 29 dBu: 123 dB
Total Harmonic Distortion/Noise
1 kHz @ 0 dBFS: -109 dBFS, -109 dB, 0.00035% 1 kHz at -1 dBFS: -110 dBFS, -109 dB, 0.00035% 1 kHz at -3 dBFS: -113 dBFS, -109 dB, 0.00035% 20 Hz to 20 kHz Test Tone at -3 dBFS: -112 dBFS, -108 dB, 0.00040%
Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu
Frequency Response
@ Fs= 96 kHz: 0 dB, -0.04 dB (20 to 20 kHz) -0.04 dB at 10 Hz -0.04 dB at 20 kHz -0.04 dB at 40 kHz -0.7 dB at 45 kHz
@ Fs= 48 kHz: 0 dB, -0.04 dB (20 to 20 kHz) -0.04 dB at 10 Hz -0.04 dB at 20 kHz
Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu
Crosstalk
-116 dB at 20 kHz -130 dB at 1 kHz -137 dB at 20 Hz
Jitter
Maximum Amplitude of Jitter Induced Sidebands (10 kHz 0 dBFS Test Tone, 12.75 UI Sinusoidal Jitter at 1 kHz): < -144 dB Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu
Max Amplitude
Spurious Tones with 0 dBFS Test Signal: < -138 dB Idle Tones: < -147 dB AC Line Related Hum & Noise: < -140 dB Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu
Differential Phase
Inter-Channel: Stereo Pair at Any Sample Rate: +/- 0.25° @ 20 kHz Between DAC2 HGC Units Fs < 110 kHz Any Sample Rate: +/- 0.25° @ 20 kHz
Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu
Maximum Lock Time
After Fs Change: 400 ms
Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu
Soft Mute
Ramp Up/Down Time: 50 ms
Mute
Receive Error: Yes Lock Error: Yes Idle Channel: No 50/15 us De-Emphasis Enable: Automatic in consumer mode De-Emphasis Method: Digital IIR De-Emphasis Supported @: Fs = 32, 44.1, 48 kHz
Latency
Digital Input to Analog Output (Function of Sample Rate): 1.36 ms at 44.1 kHz 1.27 ms at 48 kHz 0.90 ms at 88.2 kHz 0.82 ms at 96 kHz 0.51 ms at 176.4 kHz 0.47 ms at 192 kHz
DC blocking on all analog inputs Transient and Over-Voltage Protection on Analog Inputs: Series R and diode protection Input Capacitance: 10 pF
Gain Range
Off to 0.5 dB (RCA in to RCA out) Off to 16.5 dB (RCA in to XLR out) Off to 10.5 dB (RCA in to headphone) Factory-Set Gain in Home Theater Bypass Mode: 0 dB (RCA in to RCA out) 6 dB (RCA in to XLR out) (with 10 dB Pad)
Outputs
4x RCA
Output Impedance
30 Ω
Output Clipping Level
13.5 dBu
Output Level
@ 0 dBFS: Off to 7.5 dBu Factory Set Home Theater Bypass Output Level (at 0 dBFS): < +/- 0.006 dB
30 dBu Output Level Range (@ 0 dBFS) in 'Variable' Mode: Off to 23 dBu (attenuator off) Off to 13 dBu (attenuator = 10 dB) Off to 3 dBu (attenuator = 20 dB)
Output Level and Impedance
Sample Rate (44.1 kHz versus 96 kHz): < +/- 0.006 dB
DC blocking on digital inputs Transient and over-voltage protection
Minimum Input Level
Coaxial: 250 mVpp
Jitter
Tolerance with No Measurable Change in Performance: >12.75 UI sine, 100 Hz to 3 kHz >1.5 UI sine at 20 kHz >1.5 UI sine at 40 kHz >1.5 UI sine at 80 kHz >1.5 UI sine at 90 kHz >0.25 UI sine above 160 kHz Attenuation Method: Benchmark UltraLock2 on all inputs
Nominal Input Range (VAC RMS): 100 to 240 V Frequency: 50 to 60 Hz
Power
< 0.5 W Idle 12 W typical program 15 W maximum
Fuses
5x 20 mm (2 required) 0.5 A 250 V Slo-Blo Type
Operating Range
Minimum/Maximum (VAC RMS): 90 to 260 Hz 47 to 63 Hz
Rack Size
Width: 1/2 rack space Height: 1 RU
Dimensions (DxWxH)
9.3 x 9.5 x 1.7" (237 x 249 x 45 mm)
Weight
3 lb (1 kg)
The user manual for the Benchmark DAC2 L Digital to Analog Audio Converter 500-15200-300 can be downloaded in .pdf
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The user manual lists all of the functions of the Benchmark DAC2 L Digital to Analog Audio Converter 500-15200-300,
all the basic and advanced features and tells you how to use the monitoring accessories.
The manual also provides troubleshooting for common problems. Even greater
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