m802
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.
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
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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
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
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

