Benchmark ADC16 - Analog to Digital Converter (FireWire)

BH #BEADC16SILFW • MFR #500-14500-105
Benchmark
Benchmark ADC16 - Analog to Digital Converter (FireWire)
Key Features
  • 16-Channel A/D Conversion
  • Transformerless Balanced Analog Inputs
  • FireWire 400 Interface
  • Input Gain Trimpots with 20dB Range
The ADC16 from Benchmark Media is a sixteen-channel, analog-to-digital converter with a flexible input/output routing solution. In keeping with the company's "pure audio" philosophy, the unit utilizes the UltraLockDDS clock system for virtually indistinguishable jitter. Sixteen transformerless analog inputs with 20 dB gain controls feed the eight converters that feature their own matched-impedance transmission lines, and jitter distortion is always a comfortable 135 dB below the level of music.
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Expected availability: 7-14 business days
$4,299.00

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  • This item is noncancelable and nonreturnable.
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Benchmark ADC16 Overview

The ADC16 from Benchmark Media is a sixteen-channel, analog-to-digital converter with a flexible input/output routing solution. In keeping with the company's "pure audio" philosophy, the unit utilizes the UltraLockDDS clock system for virtually indistinguishable jitter. Sixteen transformerless analog inputs with 20 dB gain controls feed the eight converters that feature their own matched-impedance transmission lines, and jitter distortion is always a comfortable 135 dB below the level of music.

By avoiding an asynchronous sample rate conversion system, the converter is able to reduce latency and provide the most direct path from the analog to digital converter to the digital outputs. The UltraLockDDS clock system is based on technology originally intended for high-frequency RF communications systems. It features a fixed-frequency, low-phase noise oscillator with temperature compensation capable of +/-2 PPM frequency accuracy.

The UltraLockDDS system can lock to any sample rate between 28 and 200 kHz almost instantly and is designed with pull-up/pull-down sample rates to handle film or video transfers flawlessly. Jitter is always attenuated to levels that are well below audibility and jitter performance is identical in all modes of operation. A multi-format clock input automatically recognizes AES/EBU, S/PDIF, Wordclock, or Super Clock signals and is used to synchronize the digital outputs. The digital outputs can be clocked to the unit's high-precision internal clock and will automatically revert to the internal clock source if an external clock is interrupted.

With the installed FireWire card the unit can function as a sole interface for a FireWire-equipped DAW. For older systems, connection is possible via the ADAT or coaxial outputs to systems that support those input formats. Front-panel, nine-segment, single-sample accurate meters are included on each channel for monitoring of input levels. The meters can be set to display in 6 dB or 1 dB increments, and in both cases can be put into "peak-hold" mode, which will hold the highest-valued sample until the mode is reset. "Press-and-Hold" buttons are provided for critical settings to avoid any accidental resetting of the unit.

Sixteen channels of analog-to-digital conversion
Two DB25 connectors for transformerless balanced analog input
Input gain trim pots for each channel provide high performance over 20 dB range
Wide input sensitivity range
Nine-segment dual-range digital LED meters with "peak-hold"
Conversion at standard sample-rates (44.1, 48, 88.2, 96, 176.4, and 192 kHz) and will also lock to non-standard rates (anything between 28 kHz and 200 kHz)
Multi-function clock input with auto recognition of AES, S/PDIF, Wordclock, or Super Clock
Wordclock output
Total jitter immunity with the company's phase-accurate UltraLockDDS technology
Four sets of digital outputs (balanced AES, coaxial, optical, FireWire)
Independently controlled sourcing (A/D or DAW) for each set of digital outputs
AES/EBU, ADAT, and ADAT S/MUX2 and S/MUX4 optical output formats
"Press-and-Hold" buttons to prevent catastrophic incidents
Internal international power supply with very wide operating range
Meets FCC Class B and CE emissions requirements

Benchmark ADC16 Specs

Converter TypeA/D Converter
Number of Channels16
Expansion Slots1 x Host Connection Slot (FireWire Installed)
Connectivity
Analog Audio I/O2 x DB-25 8-Channel Input (AES 59/Tascam Pinout)
Digital Audio I/O2 x DB-25 AES3 Output (AES 59/Tascam Pinout)
8 x RCA Coaxial AES3 Output
8 x TOSLINK Optical AES3 / ADAT Output (S/MUX4 Support)
Host Connection / USB2 x FireWire 6-Pin (FireWire 400)
USB (Non-Host)None
Network I/ONone
Sync I/O1 x BNC Word Clock/Super Clock/AES Input
MIDI I/ONone
Performance
Frequency Response2 Hz to 94 kHz +0/-3 dB (at 192 kHz)
20 Hz to 20 kHz ±0.02 dB (at 192 kHz)
20 Hz to 20 kHz ±0.01 dB (at 96 kHz)
1 Hz to 23.6 kHz +0/-3 dB (at 48 kHz)
20 Hz to 20 kHz ±0.01 dB (at 48 kHz)
Max Input LevelAnalog Inputs:
+6 dBu for 0 dBFS (Max Gain)
+29 dBu for 0 dBFS (Min Gain)
ImpedanceAES Sync Inputs:
110 Ohms (Balanced)
Analog Inputs:
200 Kilohms (Balanced)
100 Kilohms (Unbalanced)
BNC Sync Inputs:
75 Ohms
DB-25 AES3 Outputs:
110 Ohms
RCA AES3 Outputs:
75 Ohms
THD+N-101 dB / 0.00089% (1 kHz, at -1 dBFS)
-104 dB / 0.00063% (1 kHz, at -3 dBFS)
-102 dB / 0.00079% (20 Hz to 20 kHz, at -3 dBFS)
SNR121 dB (A-Weighted, at +29 dBu)
119 dB (Unweighted, at +29 dBu)
117 dB (A-Weighted, Max Gain, -10 dBV)
CMRRAnalog Inputs:
> 90 dB (1 kHz)
Crosstalk-96 dB (20 kHz)
-120 dB (1 kHz)
< -135 dB (20 Hz)
Digital Audio
Sample RatesUp to 200 kHz
Bit Depths24-Bit
LatencyA/D Conversion:
1.49 ms at 44.1 kHz
Power
AC Input PowerUniversal:
90 to 264 VAC, 50 / 60 Hz
Physical
Rackmount Size1 RU
Dimensions19 x 12.5 x 1.73" / 483 x 318 x 44 mm
Weight7.0 lb / 3.2 kg
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