Grace Design m801mk2 8-Channel Microphone Preamp - Unrivaled Clarity and Precision
The Grace Design m801mk2 is the latest evolution of our groundbreaking microphone preamplifier, first introduced in 1994 as the Model 801. This 8-channel masterpiece sets a new benchmark for sonic quality with its redesigned amplifier circuitry, delivering breathtaking depth and realism. Featuring ultra-low noise, enhanced low-frequency bandwidth, and improved RFI/EMI immunity, the m801mk2 captures every nuance with unmatched transparency—perfect for modern studios where pristine audio is the foundation for creative processing.
Heritage of Excellence
Building on the legacy of the original 801 and the subsequent m801, the m801mk2 refines a proven design with a fully differential signal path, Ribbon Mic Mode, and no electrolytic capacitors in the signal chain. Its musical transimpedance architecture, gold-contact rotary gain controls, and precision metal film resistors ensure each of the eight independent channels delivers consistent, high-fidelity performance.
Optimized for Today’s Studio
With a sleek 2U rackmount design and no external power supply, the m801mk2 offers a cleaner, simpler setup while enhancing low-gain noise performance and phase response. Whether paired with large diaphragm, vintage ribbon, or dynamic mics, its 8100Ω input impedance (20 kΩ in Ribbon Mode) and robust +28 dBu output make it a versatile front-end solution for any recording scenario.
Key Features of the Grace Design m801mk2
- 8-channel preamp with musical transimpedance architecture
- Fully differential signal path, no electrolytic capacitors
- Ribbon Mic Mode: 20 kΩ impedance, phantom power lockout
- Ultra-low noise and distortion with wide dynamic range
- Enhanced RFI/EMI immunity for modern environments
- Gold-contact rotary gain controls with precision resistors
- Independent circuit boards per channel for reliability
- Built-in universal power supply (100-240VAC)
- 20-year warranty on parts and labor, made in the USA
Technical Specifications
- Gain Range: 20-60 dB (Implied from THD+N specs)
- Frequency Response: 20 dB Gain: 3.2 Hz-530 kHz (±3 dB), 14.8 Hz-109 kHz (±0.2 dB); 40 dB Gain: 3.2 Hz-500 kHz (±3 dB), 15.4 Hz-103 kHz (±0.2 dB)
- THD+N (22-22 kHz BW): <0.0004% (20 dB Gain), <0.0008% (40 dB Gain), <0.0070% (60 dB Gain) @ +20 dBu, 1 kHz
- Intermodulation Distortion (40 dB Gain, +20 dBu): <0.0015% (1:1, 50 Hz/7 kHz), <0.0020% (4:1, 50 Hz/7 kHz)
- Noise (Referred to Input, 60 dB Gain): -130 dB (50Ω), -127 dB (150Ω), -123 dB (600Ω)
- Crosstalk (40 dB Gain): -140 dB (1 kHz), -130 dB (10 kHz)
- CMRR (60 dB Gain, 3.5Vcm): >85 dB (1 kHz), >75 dB (10 kHz)
- Phantom Power: +48V (±0.9V), 6.8 kΩ Resistors (±0.1% Tolerance)
- Maximum Output: +28 dBu (1 kHz, 100 kΩ Load)
- Impedance: Input: 8100Ω (Standard), 20 kΩ (Ribbon), 1.3 kΩ (Pad Engaged); Output: 150 kΩ
- Power Consumption: 40W Max, 100-240VAC, 50/60 Hz
- Dimensions: 2U, 19” W x 10” D x 3.5” H
- Weight: 13 lbs (5.9 kg)
