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Product 180147

Grace Design m902 Reference Headphone Amplifier   

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Professionals and audiophiles alike will be floored by the high-performance 24-bit/192kHz DAC, which includes a unique s-Lock dual-stage PLL (Phase L...Click To Read More About This Product

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Professionals and audiophiles alike will be floored by the high-performance 24-bit/192kHz DAC, which includes a unique s-Lock dual-stage PLL (Phase Lock Loop) for extremely low intrinsic jitter and rock-solid digital performance. A full set of analog and digital inputs are available, all of which are selectable via a front panel rotary switch. At the core of the m902 is meticulously designed, high-current transimpedance amplifier circuitry which effortlessly drives even the lowest impedance headphones. Familiar recorded material becomes at once transparent and alive, and critical details in editing and mastering become obvious and easy to manipulate.

FEATURES
  • Balanced and unbalanced analog inputs
  • AES3, S/PDIF, TOSLINK, and USB digital inputs
  • Variable level unbalanced analog outputs for studio monitors
  • Latest generation 24/192 DAC with s-Lock dual stage PLL
  • Precision level control with a 95dB range in .5dB steps
  • Channel level matching accuracy of 0.05dB
  • Crossfeed circuitry for improved headphone imaging
  • Optional infrared remote control available
  • Internal linear power supply with custom-wound toroidal transformer
  • High current transimpedance headphone amplifier circuitry
  • No electrolytic capacitors in the signal path
  • Highest quality 0.5% metal film resistors used throughout
SPECIFICATIONS

m902 Reference Headphone Amplifier

  • Gain: +0dB (normal mode), +10dB (boost mode)

    Frequency response:
    22Hz-120kHz @ 0dBu out ±.25dB
    12Hz-260kHz @ 0dBu out ±.5dB
    4Hz-600kHz @ 0dBu out ±3dB
    Max. output level: +21.4dBu (9.11Vrms) @ 1kHz, 50 ohm load

    Impedance:
    106kOhms balanced input
    53kOhms unbalanced input
    1 ohm output

    Dynamic range:
    116dB @ 0dB gain
    119dB @ -10dB gain

    D/A specifications:
    Input sample rate: 32, 44.1, 48, 88.2, 96, 176.4, 192kHz

    Dimensions:
    8-1/2"W x 1-7/10"H x 8-1/4"D
    5 lbs.
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