Grace Design m801mk2 Rackmount 8-Channel Microphone Preamplifier

BH #GRM801MKII • MFR #M801MKII
Grace Design m801mk2 Rackmount 8-Channel Microphone Preamplifier
Key Features
  • 8 x Balanced XLR Microphone Inputs
  • Up to 64 dB of Gain in Default Mode
  • Up to 74 dB of Gain in Ribbon Mode
  • 24-Position, Gold-Contact Gain Controls
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The Grace Design m801mk2 is a rackmount 8-channel microphone preamplifier offering clean gain and versatile outputs for recording engineers in studio and live stage applications. Eight balanced XLR inputs feed the mic preamps, which provide up to 64 dB of gain in Default mode, or up to 74 dB of gain in Ribbon mode. Redesigned circuitry yields less noise at low gain settings, increased phase response accuracy, and enhanced RFI/EMI immunity.

Each channel features switches for 48 VDC phantom power, polarity, and a -20 dB pad, plus a 24-position, gold-contact gain control that makes precise recall and gain-matching easy. Bi-color LEDs indicate peak levels at thresholds of -14 dBu and +16 dBu, and may be set to a user-defined level. Complementing the eight balanced XLR channel outputs are eight balanced XLR parallel outputs designed for routing to mixer channels, recorder inputs, or outboard gear while the channel outputs send to the primary signal path.
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Expected availability: 2-4 weeks
$3,990.00
$333/mo. suggested payments
with 12 Mos. Promo Financing* 

Important Notice

  • This item is noncancelable and nonreturnable.
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Grace Design M801MKII Overview

The Grace Design m801mk2 is a rackmount 8-channel microphone preamplifier offering clean gain and versatile outputs for recording engineers in studio and live stage applications. Eight balanced XLR inputs feed the mic preamps, which provide up to 64 dB of gain in Default mode, or up to 74 dB of gain in Ribbon mode. Redesigned circuitry yields less noise at low gain settings, increased phase response accuracy, and enhanced RFI/EMI immunity.

Each channel features switches for 48 VDC phantom power, polarity, and a -20 dB pad, plus a 24-position, gold-contact gain control that makes precise recall and gain-matching easy. Bi-color LEDs indicate peak levels at thresholds of -14 dBu and +16 dBu, and may be set to a user-defined level. Complementing the eight balanced XLR channel outputs are eight balanced XLR parallel outputs designed for routing to mixer channels, recorder inputs, or outboard gear while the channel outputs send to the primary signal path.

Newly designed amplifier circuitry improves noise performance at low gains, and increases low-frequency bandwidth for more accurate phase response
Enhanced RFI/EMI immunity
Universal switch mode power supply is quiet, light, and clean
Gold-contact gain controls with 24 positions (18 to 64 dB in 2 dB steps)
Ribbon mode optimizes the m801mk2 channel for ribbon microphones by boosting the gain by 10 dB, disabling 48V phantom power, and increasing input impedance
48 VDC phantom power selectable per channel
Per-channel polarity switch reverses the signal's absolute polarity at the preamp input
Selectable -20 dB pad per channel
Bi-color peak LED indicators (green threshold at -14 dBu, red threshold at +16 dBu) with user-definable operating level
Eight balanced XLR microphone inputs
Eight balanced XLR channel outputs
Eight balanced XLR parallel outputs for sending line-level signal to additional recording devices, mixers, or outboard gear
Durable aluminum enclosure occupies 2 RU of rack space
UPC: 823821801201

Grace Design M801MKII Specs

Number of Channels8
Inputs8 x Balanced 3-Pin XLR Female Input
Output8 x Balanced 3-Pin XLR Male Channel Outputs
8 x Balanced 3-Pin XLR Male Parallel Outputs
Input ImpedanceNominal: 8.1 kOhms
Ribbon Mode: 20 kOhms
Pad Engaged: 1.3 kOhms
Output Impedance150 Ohms
Phantom PowerSelection: Per-Channel Switches
Voltage: +48 VDC (+0.9 V, -0.0 V)
6.8 kOhms Resistor Match Tolerance: ± 0.1%
Gain RangeDefault Mode: 18 to 64 dB in 2 dB Steps
Ribbon Mode: 28 to 74 dB in 2 dB Steps
Maximum Output Level+28 dBu (1 kHz, 100-kOhm Load)
Frequency Response20 dB Gain (± 3 dB), 150-Ohm Source: 3.2 Hz to 530 kHz
20 dB Gain (± 0.2 dB), 150-Ohm Source: 14.8 Hz to 109 kHz
40 dB Gain (± 3 dB), 150-Ohm Source: 3.2 Hz to 500 kHz
40 dB Gain (± 0.2 dB), 150-Ohm Source: 15.4 Hz to 103 kHz
Inter-Modulation DistortionSMPTE/DIN 1:1 (50 Hz, 7 kHz): < 0.0015% (at 40 dB Gain, +20 dBu Out)
SMPTE/DIN 4:1 (50 Hz, 7 kHz): < 0.002% (at 40 dB Gain, +20 dBu Out)
THD + N20 dB Gain, +20 dBu Out, 1 kHz: < 0.0004% (22 Hz to 22 kHz)
40 dB Gain, +20 dBu Out, 1 kHz: < 0.0008% (22 Hz to 22 kHz)
60 dB Gain, +20 dBu Out, 1 kHz: < 0.007% (22 Hz to 22 kHz)
Noise60 dB Gain, 50-Ohm Source, 22 Hz to 22 kHz: -130 dB
60 dB Gain, 50-Ohm Source, A-Weighting: -133 dB
60 dB Gain, 150-Ohm Source, 22 Hz to 22 kHz: -127 dB
60 dB Gain, 150-Ohm Source, A-Weighting: -127.5 dB
60 dB Gain, 600-Ohm Source, 22 Hz to 22 kHz: -123 dB
40 dB Gain, 50-Ohm Source, 22 Hz to 22 kHz: -127 dB
40 dB Gain, 50-Ohm Source, A-Weighting: -130 dB
40 dB Gain, 150-Ohm Source, 22 Hz to 22 kHz: -125 dB
40 dB Gain, 150-Ohm Source, A-Weighting: -128 dB
20 dB Gain, 50-Ohm Source, 22 Hz to 22 kHz: -117 dB
20 dB Gain, 50-Ohm Source, A-Weighting: -120 dB
20 dB Gain, 150-Ohm Source, 22 Hz to 22 kHz: -117 dB
20 dB Gain, 150-Ohm Source, A-Weighting: -119 dB
Phase Deviation40 dB Gain, 40-Ohm Source, 100 Hz to 20 kHz: < 3°
CrosstalkAny Channel at 40 dB Gain, 1 kHz: -140 dB
Any Channel at 40 dB Gain, 10 kHz: -130 dB
CMRR60 dB Gain, 3.5 Vcm, 1 kHz: > 85 dB
60 dB Gain, 3.5 Vcm, 10 kHz: > 75 dB
Power Consumption40 W Maximum
Power Requirements100 to 240 VAC, 50/60 Hz
Enclosure MaterialAluminum
Dimensions (W x H x D)19.0 x 3.5 x 10.0" / 48.3 x 8.9 x 25.4 cm
Weight13 lb / 5.9 kg
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