Benchmark DAC2 DX Digital to Analog Audio Converter with Remote Control (Black)

Benchmark DAC2 DX Digital to Analog Audio Converter with Remote Control (Black)

Benchmark DAC2 DX Digital to Analog Audio Converter with Remote Control (Black)

B&H # BERSPABFP MFR # 500-15300-200
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Expected availability: 7-14 business days

Color: Black

Benchmark DAC2 DX Digital to Analog Audio Converter with Remote Control (Black) Benchmark DAC2 DX Digital to Analog Audio Converter with Remote Control (Silver)

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Benchmark 500-15300-200 overview

  • 1Description

The black DAC2 DX Digital to Analog Audio Converter from Benchmark is a digital to analog converter with XLR AES digital input and dual stereo balanced/unbalanced analog output. This converter comes included with a remote control. The DAC2 system supports multi-mode asynchronous USB system. It features digital XLR, coaxial, optical and USB inputs and converts the audio into analog XLR, and RCA stereo outputs. This half rack 1RU provides low noise, low distortion, improved accuracy, and a high sample-rate asynchronous USB audio interface. All inputs are fully isolated from interface jitter by the UltraLock2 jitter attenuation system. Internal digital processing and conversion is 32-bits, and includes 3.5 dB of headroom above 0 dBFS. Three balanced 32-bit D/A converter are summed together for the main output bus. Two channels are reserved for the auxiliary RCA output bus. DSD (in DoP 1.1 format) is automatically detected on the USB, coaxial, and XLR digital inputs. The system switches between native DSD and native PCM conversion.

The DAC2 DX combines active analog gain control, passive low-impedance attenuators, a 32-bit digital gain control, and a servo-driven volume control. The gain coefficients are filtered and passed to a 32-bit high-headroom DSP system. The 32-bit output of this system is connected to the 32-bit digital to analog converters. The DSP system is designed to preserve L/R balance and stereo imaging.

This unit supports USB Audio 2.0, DSD, and USB Audio 1.1. It is frequency agile, and will follow sample rate changes initiated by the computer and/or the media playback software. The USB communications are asynchronous in all modes. This USB mode can be selected from the front panel or from the remote control. The driverless USB Audio 1.1 mode allows quick plug-and-play connections to Windows, MAC, iOS, and many Linux operating systems without installing drivers. The USB subsystem remains active when the DAC2 DX converter is powered down. This prevents interruptions to the computer playback operations and eliminates the need to reconfigure the computer every time the converter is turned on.

The DAC2 DX has a low-jitter master clock which controls the transfer of audio data from the computer to the USB sub-system. The computer asynchronously transfers audio data to a buffer in the DAC2 DX. The Asynchronous USB system supports USB Audio 2.0 for high-resolution 192kHz, and DSD playback. No drivers are required for MAC operating systems. An easy-to-install driver adds 192 kHz and DSD capabilities to Windows operating systems.

The DAC2 DX has two analog output buses. Each bus can be placed in a volume-control bypass mode in order to provide a full-level output to a downstream analog volume control. The bypass function should be enabled whenever a Hi-Fi pre-amplifier is inserted between the converter and the power amplifier. The second coaxial input can be reconfigured as a digital output. In output mode, any selected digital input (including USB) will pass through to the coaxial output. The digital pass through is bit-transparent and even supports DSD (DoP 1.1). Dolby digital and DTS formats can be passed through to a surround processor.

The DAC2 features the HPA2 high-current, zero-ohm headphone power amplifier designed to deliver the full performance of the DAC2 to the headphones. The HPA2 maintains less than 0.0003% THD+N under full load. The DAC2 has two 1/4" headphone jacks on the front panel. The performance of the HPA2 remains consistent even when two headphones are being driven simultaneously.

Sample-rate display
Word-length display
Six digital inputs
Three stereo analog outputs
Two independent analog output buses
Digital pass-through
Dual HPA2 headphone outputs
Headphones Mute switch-left headphone jack mutes main output, function may be defeated
Native DSD conversion
Native PCM conversion
Asynchronous USB 2.0
Asynchronous USB 1.1 for driverless operation
Volume Control Bypass function for main bus
Volume Control Bypass function for auxiliary bus
12V Trigger I/O - for sequenced system power switching
Mute Relays - on all analog outputs
Power switch
Low power consumption
Hybrid Gain Control
High-Headroom 32-bit DSP
Quad 32-bit balanced D/A conversion system
UltraLock2 jitter attenuation system
Zero-Ohm HPA2 headphone amplifier
UPC: 837654830772
In the Box
Benchmark DAC2 DX Digital to Analog Audio Converter with Remote Control (Black)
  • Remote Control
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Benchmark 500-15300-200 specs

    Input Connectors 1 x USB audio input
    1 x AES XLR input
    2 x optical inputs
    2 x coaxial inputs (or 1 input and 1 pass-through)
    Frequency Setting Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu (unless noted)
    Signal to Noise Ratio (SNR) NR - A-Weighted, 0 dBFS = +20 to +29 dBu 126 dB
    SNR - Unweighted, 0 dBFS = +20 to +29 dBu 123 dB
    Total Harmonic Distortion(THD) + N THD+N, 1 kHz at 0 dBFS -109 dBFS, -109 dB, 0.00035%
    THD+N, 1 kHz at -1 dBFS -110 dBFS, -109 dB, 0.00035%
    THD+N, 1 kHz at -3 dBFS -113 dBFS, -109 dB, 0.00035%
    THD+N, 20 to 20 kHz test tone at -3 dBFS -112 dBFS, -108 dB, 0.00040%
    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
    Crosstalk -116 dB at 20 kHz
    -130 dB at 1 kHz
    -137 dB at 20 Hz
    Max Amplitude Maximum Amplitude of Jitter Induced Sidebands (10 kHz 0 dBFS test tone, 12.75 UI sinusoidal jitter at 1 kHz): < -144 dB
    Maximum Amplitude of Spurious Tones with 0 dBFS test signal: < -138 dB
    Maximum Amplitude of Idle Tones: < -147 dB Maximum Amplitude of AC line related Hum & Noise: < -140 dB
    Inter-channel Differential Phase (Stereo Pair - any sample rate): +/- 0.25 degrees at 20 kHz
    Differential Phase (Between DAC2 HGC Units Fs<110 kHz) Any sample rate: +/- 0.25 degrees at 20 kHz
    Audio Performance Lock Time after Fs change: 400 ms
    Soft Mute Ramp Up/Down Time: 50 ms
    Mute on Receive Error: Yes
    Mute on Lock Error: Yes
    Mute on Idle Channel: No
    50/15 us De-Emphasis Enable Automatic in Consumer Mode
    De-Emphasis Method Digital IIR
    De-Emphasis Supported at Fs = 32, 44.1, 48 kHz
    Group Delay 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
    Digital Audio Inputs 1 x USB
    2 x Optical
    1 x AES
    2 x Coaxial
    Number of Channels: 2
    Input Sample Frequency Range: 28 to 210 kHz (Coaxial and XLR)
    28 to 96 kHz (Optical)
    44.1, 48, 88.2, 96, 176.4, 192 kHz (USB)
    Maximum Input Word Length: 24-bits
    Digital Input Impedance: 75 Ohms Coaxial, 110 Ohms XLR
    DC Blocking Capacitors on Digital Inputs: Yes (Coaxial and XLR Inputs)
    Transient and Over-Voltage Protection on Digital Inputs: Yes (Coaxial and XLR Inputs)
    Transformer Coupling on Digital Inputs: Yes (XLR Input)
    Minimum Digital Input Level: 250 mV p-p (Coaxial and XLR Inputs)
    Jitter >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
    Jitter Attenuation Method Benchmark UltraLock2- all inputs
    Balanced Audio 2 x XLR male, Gold-pin Neutrik, analog output
    Output Impedance: 60 ohms (attenuator off), 425 ohms (attenuator = 10 dB), 135 ohms (attenuator = 20 dB)
    Analog Output Clip Point: +30 dBu
    Factory Set Bypass Level (at 0 dBFS): +24 dBu (attenuator = 0 dB)
    Output Level Range (at 0 dBFS) In 'Variable' Mode Off to +24 dBu (attenuator off)
    Off to +14 dBu (attenuator = 10 dB)
    Off to +4 dBu (attenuator = 20 dB)
    Output Level Variation with Sample Rate (44.1 kHz vs. 96 kHz): < +/- 0.006 dB
    Unbalanced Audio 4 x RCA, analog output
    Output Impedance: 30 ohms
    Analog Output Clip Point: +13.5 dBu
    Factory Set Home Theater Bypass Output Level (at 0 dBFS): +8.2 dBu (2 Vrms)
    Output Level Range (at 0 dBFS): Off to +8.2 dBu
    Output Level Variation with Sample Rate (44.1 kHz vs. 96 kHz): < +/- 0.006 dB
    Headphone Output 2 x 1/4" TRS, with switch on left-hand jack, HPA2
    Output Impedance < 0.11 Ohms Output Level Control: Stereo Control, front panel
    Output Level Range (at 0 dBFS) into 60-Ohm Load: Off to +17 dBu
    Maximum Output Current: 250 mA
    Overload Protection (independent per channel): Current limited at 300 mA, Thermal
    Bandwidth: > 500 kHz
    THD+N: -106 dB, 0.0005% into 30 Ohms at +18 dBu (1.26 W)
    Status Display Indicators Type and Location: 16 LED's on front panel
    Selection/Status Indication:
    2 - Dim/Mute
    6 - Input
    2 - Bypass/Calibrated Output
    2 - Word length
    4 - Sample Rate
    AC Power Requirements Nominal Input Operating Voltage Range (VAC RMS): 100 - 240 V
    Frequency: 50 - 60 Hz
    Power: < 0.5 W, idle
    12 W, typical program
    15 W, maximum
    Fuses: 5 x 20 mm (2 required)
    0.5 A, 250 V, Slo-Blo type
    Min/Max Operating Range (VAC RMS): 90 - 260
    47 - 63 Hz
    Dimensions With Connectors: 9.33 x 9.50 x 1.725" (23.7 x 24.9 x 4.45 cm)
    Without Connectors: 8.5 x 9.5 x 1.725" (21.6 x 24.9 x 4.45 cm)
    Weight 3 lb (1.4 kg)
    Packaging Info
    Package Weight 5.15 lb
    Box Dimensions (LxWxH) 14.5 x 11.0 x 3.3"

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