The Grace Design m801 MKII Microphone Preamp delivers ultra-transparent, pristine microphone amplification with unmatched depth, clarity and realism.
Engineered for tracking drums, vocals, orchestras, and any source that demands absolute fidelity, the m801 MKII captures performances with lifelike dimension and accuracy - making it the ultimate reference preamp for critical recording applications. With eight fully independent channels of Grace’s renowned preamp design, the m801 MKII refines and enhances the original with lower noise at low gain settings, extended low-frequency bandwidth, improved RFI/EMI immunity, and a universal internal power supply. Whether you’re capturing delicate acoustic nuances or powerful ensemble performances, the m801 MKII delivers pure, natural sound with effortless dynamic range and headroom.
Grace Design m801 MKII Microphone Preamp Features
- Eight-channel rackmount microphone preamp with precision analog design
- 24-position gold-contact rotary gain switches for consistent and repeatable gain settings
- Per-channel controls: +48 V phantom power, phase reverse, -20 dB pad, and dedicated Ribbon Mic Mode
- Ribbon Mic Mode increases gain, disables phantom power, and optimizes impedance for ribbon microphones
- Transformerless signal path for ultra-low distortion and extended bandwidth
- Sealed gold-contact relays for signal switching — no electrolytic capacitors in the audio path
- Improved design featuring lower noise floor, tighter low-frequency phase response, and better shielding against interference
- Built-in universal power supply (100–240 V AC) for worldwide operation
- Ideal for high-end studio recording, broadcast, orchestral, and classical applications
Grace Design m801 MKII Microphone Preamp Specifications
- Frequency Response (20 dB gain, 150 Ω source): 3.2 Hz – 530 kHz (±3 dB) / 14.8 Hz – 109 kHz (±0.2 dB)
- THD + N (22 Hz–22 kHz):
- 20 dB gain, +20 dBu out: < 0.0004%
- 40 dB gain: < 0.0008%
- 60 dB gain: < 0.007%
- Noise (Referred to Input, 60 dB gain):
- 50 Ω source: –130 dB
- 150 Ω: –127 dB
- 600 Ω: –123 dB
- Crosstalk (40 dB gain):
- 1 kHz: –140 dB
- 10 kHz: –130 dB
- Input Impedance: 8.1 kΩ standard / 20 kΩ in Ribbon Mode / 1.3 kΩ with pad engaged
- Maximum Output Level: +28 dBu (1 kHz, 100 k Ω load)
- Power Requirements: 100–240 V AC, 50/60 Hz, 40 W max
- Dimensions: 19" W × 10" D (2U rackmount)
- Weight: 13 lb (5.9 kg)
Grace Design m801 MKII Microphone Preamp Includes
- Grace Design m801 MKII Microphone Preamp
- Power Cord
- Owner’s Manual
- Manufacturer Warranty
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