Grace Design m801mk2 Rackmount 8-Channel Microphone Preamplifier

Grace Design m801mk2 Rackmount 8-Channel Microphone Preamplifier

Grace Design m801mk2 Rackmount 8-Channel Microphone Preamplifier

B&H # GRM801MKII MFR # M801MKII
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Expected availability: 7-14 business days

Product Highlights

  • 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
  • Per-Channel 48 VDC, Polarity & 20 dB Pad
  • Enhanced RFI/EMI Immunity
  • Reduced Noise at Low Gains
  • 8 x Balanced XLR Channel Outputs
  • 8 x Balanced XLR Parallel Outputs
  • Bi-Color Peak LED Indicator
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This item is noncancelable and nonreturnable.

$0 VA Sales Tax Collected on This Item
$3,990.00
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Grace Design M801MKII Overview

  • 1Description

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
In the Box
Grace Design m801mk2 Rackmount 8-Channel Microphone Preamplifier
  • Power Cable
  • 4 x Rack Screws
  • Limited 20-Year Warranty
  • Table of Contents
    • 1Description

    Grace Design M801MKII Specs

    Number of Channels 8
    Inputs 8 x Balanced 3-Pin XLR Female Input
    Output 8 x Balanced 3-Pin XLR Male Channel Outputs
    8 x Balanced 3-Pin XLR Male Parallel Outputs
    Input Impedance Nominal: 8.1 kOhms
    Ribbon Mode: 20 kOhms
    Pad Engaged: 1.3 kOhms
    Output Impedance 150 Ohms
    Phantom Power Selection: Per-Channel Switches
    Voltage: +48 VDC (+0.9 V, -0.0 V)
    6.8 kOhms Resistor Match Tolerance: 0.1%
    Gain Range Default 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 Response 20 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 Distortion SMPTE/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 + N 20 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)
    Noise 60 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 Deviation 40 dB Gain, 40-Ohm Source, 100 Hz to 20 kHz: < 3°
    Crosstalk Any Channel at 40 dB Gain, 1 kHz: -140 dB
    Any Channel at 40 dB Gain, 10 kHz: -130 dB
    CMRR 60 dB Gain, 3.5 Vcm, 1 kHz: > 85 dB
    60 dB Gain, 3.5 Vcm, 10 kHz: > 75 dB
    Power Consumption 40 W Maximum
    Power Requirements 100 to 240 VAC, 50/60 Hz
    Enclosure Material Aluminum
    Dimensions (W x H x D) 19.0 x 3.5 x 10.0" / 48.3 x 8.9 x 25.4 cm
    Weight 13 lb / 5.9 kg

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