Benchmark Media DAC3-B Digital To Analog Converter - Black - Long & McQuade Music Educator Site
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Benchmark Media DAC3-B Digital To Analog Converter - Black

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SKU: # 702414
Model: #

500-14800-830

2 models to choose from:

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The DAC3 B is the basic D/A converter in Benchmark's DAC3 converter series. The DAC3 B is the ideal converter to use in front of Benchmark's HPA4 headphone amplifier or LA4 line amplifier. It is also ideal for many professional studio applications. It delivers the full performance of the flagship DAC3 HGC, but eliminates the volume control, the analog inputs, the mute and polarity controls, and the headphone amplifier.

To make system integration easy, the DAC3 B retains IR remote control (handset optional), 12 V trigger, and the programmable auto-on feature. The DAC3 B adds a control-lock feature that turns off the remote control and locks the keypad to prevent tampering and accidental changes. The optional 1/2-width rack-mount faceplate allows the mounting of two units in a single 1-RU rack space.

Performance
The DAC3 delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3 jitter attenuation system.
Internal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D/A converters.
Four balanced 32-bit D/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.

Connectivity to Power Amplifiers
DAC3 converters are designed to directly drive power amplifiers and speakers. Benchmark converters feature adjustable low-impedance passive attenuators at the XLR outputs that can be used to optimize the interface to the power amplifier (or powered monitor). This unique Benchmark feature optimizes the gain staging between the DAC and the power amplifier. Proper gain staging cannot be overemphasised. When audio stages are properly matched, each component in the audio chain is able to operate at its optimum signal level, and the system performance is significantly improved.

Sonically-Neutral Studio Monitoring
All Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. For this reason, DAC3 converters are ideal for critical reference-quality professional systems. Unlike many competing products, the DAC3 is not designed to add "euphonic" coloration to the audio. Instead it is designed to be as uncolored and natural as possible. Transparent sound can go beyond replicating the studio experience. Recordings that have been produced with a natural and unprocessed sound can transport you to the performance space. But, this can only happen when the entire playback chain is selected for maximum transparency.
This experience of "being there" cannot be created by systems that are designed to add "warmth" or "euphonic color" to the music.

Features
• Harmonic Compensation
• UltraLock3 Jitter Attenuation System
• High-Headroom DSP
• Multi-Mode Asynchronous USB Audio System
• Quad 32-bit balanced D/A Conversion System
• Distributed Power Regulation

Specifications
AUDIO PERFORMANCE
Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu (unless noted)
SNR A-Weighted, 0 dBFS = +24 dBu: 125 dB, 128 dB relative to intersample peaks
SNR Unweighted, 0 dBFS = +24 dBu: 123 dB, 126 dB relative to intersample peaks
THD+N, 1 kHz at 0 dBFS: -113 dBFS, -113 dB, 0.00022%
THD+N, 1 kHz at -1 dBFS: -114 dBFS, -113 dB, 0.00022%
THD+N, 1 kHz at 3 dBFS: -119 dBFS, -116 dB, 0.00016%
THD+N, 20 to 20 kHz test tone at 3 dBFS: -113 dBFS, -110 dB, 0.00032%
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: < -133 dB
Inter-channel Differential Phase (Stereo Pair any sample rate): +/- 0.25 degrees at 20 kHz
Inter-channel Differential Phase (Between DAC3 Units Fs < 110 kHz) Any sample rate: +/- 0.25 degrees at 20 kHz
Maximum Lock Time after Fs change: 6 ms
Soft Mute Ramp Up/Down Time: 9.6 ms
Mute on Receive Error: Yes
Mute on Lock Error: Yes
Mute on Idle Channel: No
DIGITAL AUDIO INPUTS
Number of Digital Inputs (switch selected): 5 (1 USB, 2 Optical, 2 Coaxial)
Number of Channels: 2
• Input Sample Frequency Range:
28 to 210 kHz (Coaxial Inputs)
28 to 96 kHz (Optical Inputs)
44.1, 48, 88.2, 96, 176.4, 192 kHz (USB Input)
Digital Input Impedance: 75 Ohms (Coaxial Inputs)
Minimum Digital Input Level: 250 mVpp (Coaxial Inputs)
BALANCED ANALOG OUTPUTS
Number of Balanced Analog Outputs: 2
Output Connector: Gold-Pin Neutrik male XLR
• Output Impedance:
60 Ohms (Attenuator off)
425 Ohms (Attenuator = 10 dB)
135 Ohms (Attenuator = 20 dB)
UNBALANCED ANALOG OUTPUTS
Number of Unbalanced Analog Outputs: 2
Output Connector: RCA
Output Impedance: 30 Ohms
AC POWER REQUIREMENTS
Nominal Input Operating Voltage Range (VAC RMS): 100 240V
Frequency: 50-60 Hz
• Power:
< 0.5 Watts Idle
12 Watts Typical Program
13 Watts Maximum
DIMENSIONS
Form Factor: Rack Wide, 1 RU High
Depth behind front panel: 8.5 (216 mm)
Overall depth including connectors: 9.33 (237 mm)
Width: 9.5 (249 mm)
Height: 1.725 (44.5 mm)
Weight: 3lb
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