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Grace Design m905 DAC Upgrade Kit For m905 Analog Reference Monitor Controller

Grace Design m905 DAC Upgrade Kit For m905 Analog Reference Monitor Controller

B&H # GRA905DIG MFR # A905-DIG
Grace Design m905 DAC Upgrade Kit For m905 Analog Reference Monitor Controller

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Important Notice: This item is non-cancelable and non-returnable
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Expected availability: 7-14 business days 
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Product Highlights

  • AES, S/PDIF and ADAT Digital Inputs
  • Mastering-Class Monitor Controller & DAC
  • 3x Stereo Pairs of Speaker Outputs
  • 2x Assignable Mono Sub Outputs
  • Balanced and Unbalanced Analog Inputs
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  • 1Description

The Grace Design m905 DAC Upgrade Kit For m905 Analog Reference Monitor Controller adds AES, S/PDIF, and ADAT digital inputs with an asynchronous Class 2 USB 24-bit/192 kHz digital to analog converter to the existing analog monitor controller's balanced and unbalanced analog inputs. The device is designed to deliver mastering-quality monitoring to your home or professional studio.

The unit allows you to switch between a variety of input sources. Additionally, the unit has three stereo pairs of balanced speaker outputs with two assignable mono sub outputs, giving you a versatile selection of monitoring options when mixing or mastering.

Features:

Balanced and unbalanced analog inputs
CUE & talkback mic
2x AES3 , 1x S/PDIF, 1x TOSLINK, ADAT (selectable in 4 pairs, or 2 pairs in S/MUX), USB & DSD128 (5.6448MHz)
Audio circuitry designed for transparent playback
Asynchronous Class 2 USB playback supports up to 24-bit/192 kHz
Mastering-quality DAC circuitry with configurable de-emphasis filtering
s-lock dual-stage Phase Lock Loop for low-jitter clock regeneration
Hybrid RCU with hardware switches, large level encoder, and graphical LCD
LCD display shows input, level, output, SPL, and DAC status plus a full calibration menu
RCU includes built-in microphone for talkback and onboard SPL meter
SPL meter features include level, peak, fast and slow modes, and A & C weighting
Precision 0.5 dB step level control for speakers and headphones
Reference headphone amplifier circuitry, with outputs on both the RCU and ACU
Dedicated mono, dim, mute, and sub mute switches
Mono mode can be set to L+R summed, L only in both channels, or R only in both channels
L solo, R solo, L-R, and sub solo modes available
3 available stereo speaker outputs, with 2 assignable mono sub outputs (or single stereo sub output)
Multi-mode SUB / DAC / METER out
SUB out mode for stereo or multiple mono subwoofer outputs
DAC out mode for a fixed DAC output fed by the selected digital input
METER out mode fed by selected input signal (digital or analog), configurable with a fixed level or to follow the monitor level
Detachable RCU tilt base
In the Box
Grace Design m905 DAC Upgrade Kit For m905 Analog Reference Monitor Controller
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description
    Analog I/O
    THD + N At Maximum Volume, 1 kHz, 22 Hz to 22 kHz BW
    +20 dBu Out: <0.0008%
    +10 dBu Out: <0.0008%
    0 dBu Out: <0.002%
    Distortion Inter-Modulation Distortion SMPTE / DIN 4:1 50 Hz, 7 kHz
    At +20 dBu Out: <0.002%
    At 0 dBu Out: <0.0015%
    Frequency Response Balanced Inputs +/-3 dB: 3 Hz to 1.25 MHz
    Unbalanced Input +/-3 dB: 3 Hz to 275 kHz
    Dynamic Range 20 to 22 kHz Bandwidth: 118 dB
    20 to 22 kHz Bandwidth and A-Weighting Filter: 121 dB
    Output Noise 20 to 22 kHz Bandwidth, at -20 dB Gain: -99 dBu
    20 to 22 kHz Bandwidth and A-Weighting Filter, at -20 dB Gain: -102 dBu
    Deviation Phase Deviation:
    20 Hz to 20 kHz: <10°
    10 Hz to 100 kHz: <19°
    Cross Talk Crosstalk Any Channel:
    100 Hz: <104 dB
    1 kHz: <100 dB
    20 kHz: <79 dB
    Balanced Input For Balanced Input:
    60 Hz: >90 dB
    1 kHz: >85 dB
    10 kHz: >70 dB
    Gain Range -104 dB to +13 dB
    Channel Channel Tracking Accuracy: +/-0.1 dB
    Maximum Output Level +26 dBu
    Maximum Input Level Balanced Inputs: +29 dBu

    Unbalanced Inputs: +21 dBu

    Impedance Balanced Inputs: 88 kOhms

    Unbalanced Inputs: 53 kOhms

    Balanced Outputs: 300 ohms

    Minimum Load Impedance: 300 ohms

    Mic Pre Gain External Talkback Mic Preamp Gain: +7 dB to +70 dB in 1 dB steps
    DAC Output
    Output Level User Selectable (0 dBFS): -76 dBu to +24 dBu in 0.5 dB steps
    Fixed output trim range: (0.5 dB steps)
    THD + N 1 kHz, -1 dBFS, (0 dBFS = +20 dBu), 20 to 22 kHz Bandwidth: 0.0006%
    Dynamic Range 20 to 22 kHz Bandwidth, 0 dBFS = +20 dBu (AES 17 filter): 117 dB

    20 to 22 kHz Bandwidth, 0 dBFS = +20 dBu (A-weighted): 119 dB

    Lock Range AES3 / SPDIF:

    44.1 kHz +/-400 Hz

    48 kHz +/-700 Hz

    88.2 kHz +/-1200 Hz

    96 kHz +/-1300 Hz

    176.4 kHz +/-2000 Hz

    192 kHz +/-2000 Hz

    TOSLINK:

    44.1 kHz +/-400 Hz

    48 kHz +/-700 Hz

    88.2 kHz +/-1200 Hz

    96 kHz +/-1300 Hz

    ADAT:

    8 Channels at 44.1 kHz and 48 kHz

    4 Channels at 88.2 kHz and 96 kHz (s/mux)

    44.1 kHz +/-50 Hz

    48 kHz +/-70 Hz

    88.2 kHz +/-50 Hz

    96 kHz +/-70 Hz

    USB:

    44.1kHz 

    48 kHz 

    88.2 kHz 

    96 kHz 

    176.4 kHz 

    192 kHz 

    DSD64 2.8224 MHz

    DSD128 5.6448 MHz

    Capture Bandwidth s-Lock Capture Range

    44.1 kHz: +/- 6 Hz

    48 kHz: +/- 7 Hz

    88.2 kHz: +/- 14 Hz

    96 kHz: +/- 20 Hz

    176.4 kHz: +/- 24 Hz

    192 kHz: +/- 30 Hz

    Word Clock Impedance (switchable): 75 ohms / 1 MOhm
    Minimum Voltage: 3V peak to peak
    Maximum Voltage: 5V peak to peak
    Word Clock Frequencies Supported: 44.1, 48, 88.2, 96, 176.4, 192 kHz
    Superclock Frequencies Supported: N/A
    Power Supply
    Power Consumption 60 W
    Input Voltage 100 to 240 VAC 50-60 Hz
    Dimensions Main Chassis IEC 2U: 3.50 x 10.50 x 17.00" (8.89 x 26.67 x 43.18 cm)

    Remote Control Unit: 8.90 x 5.10 x 2.20" (22.61 x 12.95 x 5.59 cm)

    Weight Main Chassis: 7.80 lb (3.54 kg)

    Remote Control Unit: 2.20 lb (1.00 kg)

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