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m802

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Grace Design

m802

Grace Design m802 Remote Microphone Preamp

This remote controllable, high fidelity 8-channel microphone preamplifier is extremely transparent and musical. Its full featured stand-alone hardware RCU will seamlessly control up to 64 channels (a system of eight m802s) from distances up to 1000’. All preamplifier functions, including gain, phase, and 48V phantom are instantly accessible and adjustable. These settings can then all be stored into preset locations and instantly recalled.

The unit can also be controlled directly from DigiDesign® ProTools|HD® systems, compatible control surfaces and other MIDI devices, making it easily integrated into many different remote recording situations.
Note: Remote Control Unit rents separately. Contact your local VER rep for information.

Product Weight:  12 lbs; power supply: 4 lbs
Dimensions:  2U rack mount x 10”D: power supply: 1.7”H x 8.5”W x 8.5”D

Technical Tools

Manufacturer Specs

PREAMPLIFIER
Frequency response
   @ 40dB gain ± 0.2dB (50Ω source): 15Hz-300kHz
   @ 40dB gain ± 3dB (50Ω source): 4.5Hz-1.0MHz

THD+N
   @ 19.6dB gain +20dBu out, 1kHz: <.0007%
   @ 40.5dB gain +20dBu out, 1kHz: <.0010%
   @ 60.0dB gain +20dBu out, 1kHz: <.0050%

Intermodulation Distortion @ 40dB gain +20dBu out
   SMPTE/DIN 1:1 (50Hz, 7kHz): <.0015%
   SMPTE/DIN 4:1 (50Hz, 7kHz): <.0040%

Noise - Referred to Input
   @ 60dB gain, 50Ω source: -129dB
   @ 60dB gain, 150Ω source: -127dB
   @ 60dB gain, 600Ω source: -123dB

Phase Deviation
   100-20KHz @ 40.5dB gain: <3°

Crosstalk
   Any Channel @ 40.5dB gain 1kHz: -110dB

CMRR
   @ 60dB gain, 3.5Vcm, 1kHz: >70dB
   @ 60dB gain, 3.5Vcm, 10kHz: >70dB

Maximum Output Level
   Balanced: +27dBu
   Unbalanced: +21dBu

Impedance
   Input: 8100kΩ
   Output: 200Ω
   Minimum load impedance: 50Ω

Power Consumption
   100/120/230/240V~ 50-60Hz: 60 Watts

A/D CONVERTER MODULE (without preamplifier)
Dynamic range
   20Hz-20kHz     >115dB
   “A” weighting     >117dB

THD+N
   1kHz, -1dBFS, 20Hz-22kHz: < 0.00026% (-112dB)Frequency response

Frequency response  
  +/-0.2dB  -3dB
44.1kHz Fs  5Hz-21kHz  22kHz
48kHz Fs  5Hz-23kHz  24kHz
88.2kHz Fs  5Hz-41kHz  44kHz
96kHz Fs  5Hz-45kHz  48kHz
176.4kHz Fs  5Hz-54kHz  72.5kHz
192kHz Fs  5Hz-59kHz  79kHz

Full scale input level: +16dB or +24dB (+/-2dB trim)

CMRR
   60Hz: >65dB
   1kHz: >80dB
   10kHz: >60dB
   IMD SMPTE 4:1 60Hz, 7kHz, -3dBFS: <100dB (0.0008%)
   Interchannel crosstalk: <120dB

Group delay, 44.1-48kHz: 13/Fs

Maximum Non-harmonic Spurius Tones
   1kHz, -1dBFS, 20Hz-22kHz: <-130dBFS
   Sample rates, internal crystal (kHz): 44.1, 48, 88.2, 96, 176.4, 192

External Clock Lock Range
   Wide lock mode: 40.1kHz-207kHz (+/-8% at each sample rate)
   s-Lock mode: +/-250ppm (+350, -400ppm typical)

Intrinsic Jitter, 200Hz-20kHz BW
   Wide lock mode: < 60ps RMS
   s-Lock mode: < 40ps RMS

Jitter Rejection Corner Frequency
   Wide lock mode, -3dB, 12dB/octave: 800Hz
   s-Lock mode, -3dB, 12dB/octave: 10Hz