Grace Design m801

Grace Design m801 Mk2 Microphone Preamplifier

The Grace Design m801mk2 is an 8-channel microphone preamplifier offering exceptional clarity and transparency. Featuring improved low-gain noise performance, enhanced low-frequency response, and increased RFI/EMI immunity, it delivers pristine audio in any studio. With a fully balanced, transformerless design, precise gain control, and dedicated Ribbon Mic mode, it ensures uncoloured, high-fidelity sound for professional recording.

Grace Design m801 Mk2 Microphone Preamplifier Details

The Grace Design m801 Mk2 is an 8-channel microphone preamplifier designed for pristine, high-fidelity audio recording. It features newly developed amplifier circuitry that improves noise performance at low gain levels, enhances low-frequency bandwidth for superior phase response, and increases RFI/EMI immunity to ensure clean signal integrity in modern studio environments.

The elimination of an external DC power supply further streamlines the design. Each channel of the Grace Design m801 Mk2 is equipped with a 24-position gold contact gain switch, providing precise control over audio input.

Additional features include 48V phantom power, phase reverse, a 20dB pad, and a dedicated Ribbon Mic mode, optimising the signal path for low-output ribbon microphones. The fully balanced, transformerless design ensures transparency and clarity, capturing every detail with exceptional accuracy.

The Grace Design m801mk2 delivers exceptional noise performance and frequency response, making it one of the most transparent and accurate microphone preamplifiers available.

Grace Design m801 Mk2

With an ultra-low noise floor, its equivalent input noise (EIN) reaches an impressive -130dB with a 50Ω source at 60dB gain, ensuring pristine signal integrity even when capturing delicate sources.

Its frequency response is equally remarkable, extending from 3.2Hz to 530kHz at 20dB gain (±3dB), with an incredibly flat response of 14.8Hz to 109kHz (±0.2dB). At 40dB gain, the unit maintains its extended range, reaching 3.2Hz to 500kHz (±3dB), preserving phase accuracy and low-end clarity.

These figures ensure that transients, harmonics, and tonal details are captured with precision, making the m801mk2 an ideal choice for demanding recording applications where absolute fidelity is required.

Built for professional studios, the Grace Design m801 Mk2 delivers an uncoloured, natural sound, making it an ideal choice for engineers who demand the highest level of sonic integrity. With robust construction and long-term reliability, the Grace Design m801 Mk2 is a solid investment for any recording setup.

Specifications

  • Frequency response:
    • @ 20dB gain ± 3dB 150Ω source: 3.2Hz-530kHz
    • @ 20dB gain ± 0.2dB 150Ω source: 14.8Hz-109kHz
    • @ 40dB gain ± 3dB 150Ω source: 3.2Hz-500kHz
    • @ 40dB gain ± 0.2dB 150Ω source: 15.4Hz-103kHz
  • THD+N (22-22kHz):
    • @ 20dB gain +20dBu out, 1kHz: <0.0004%
    • @ 40dB gain +20dBu out, 1kHz: <0.0008%
    • @ 60dB gain +20dBu out, 1kHz: <0.0070%
  • Intermodulation distortion (@40dB gain +20dBu out):
    • SMPTE/DIN 1:1 (50Hz, 7kHz): <0.0015%
    • SMPTE/DIN 4:1 (50Hz, 7kHz): <0.0020%
  • Noise – referred to input (@60dB gain):
    • 50Ω source: -130dB
    • 150Ω source: -127dB
    • 600Ω source: -123dB
  • Phase deviation (100-20kHz @40dB gain): <3°
  • Crosstalk (@40dB gain): 1kHz: -140dB, 10kHz: -130dB
  • CMRR: @ 60dB gain, 3.5Vcm, 1kHz: >85dB, @ 60dB gain, 3.5Vcm, 10kHz: >75dB
  • Phantom power: Voltage: +48V (+0.9/-0.0)
  • Maximum output level (1kHz, 100kΩ load): +28dBu
  • Impedance:
    • Input: 8100Ω
    • Input, ribbon mode: 20kΩ
    • Input, pad engaged: 1.3kΩ
    • Output: 150kΩ
  • Dimensions: 482mm x 254mm x 89mm
  • Weight: 5.9kg

The details provided above are drawn from historical documents like advertising brochures or user manuals. They’re shared without bias or review. This info is given solely for your consideration, helping you gauge its usefulness to you.

Grace m801
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