Grace Design m108

8-Channel Remote Control Preamp and ADC

• 8 transparent and musical microphone preamplifiers
• Remote control via software, browser or network
• Built-in A/D conversion up to 192kHz
• Compatibility with Dante, Digilink, Ravenna (AES67/ST2110)
• Asynchronous USB interface for minimal jitter
• Expandable and ideal for modern productions

Grace Design m108: superior preamplification

The Grace Design m108 represents the ultimate evolution of professional microphone preamplification. The product of more than 25 years of experience, it offers eight channels with transformerless preamp and transimpedance, ensuring crystal-clear and deep sound output. Built-in A/D conversion provides impeccable quality digital signals, while the asynchronous USB interface dramatically reduces jitter.

Flexible remote control and intuitive interface

Control can be done locally via rotary encoder with high-contrast OLED display, or remotely via dedicated app or web browser compatible with all modern operating systems. There are direct controls for phantom, phase inversion, grouping and peak reset, with immediate visual feedback.

Connectivity and versatility for every audio environment

The m108 features balanced analog, AES3, ADAT and USB outputs as standard. Optional slot expansion allows the addition of Dante, Digilink or Ravenna cards. In addition, the ability to install a CRO (Control Room Output) card allows use as a stereo monitor controller.

Detailed technical specifications Grace Design m108

Microphone preamplifier (Analog In → Analog Out)

• Frequency response: up to 1MHz (-3dB)
• THD+N: <0.0003% @ 20dB gain
• Input-referred noise: -129dB @ 60dB gain
• CMRR: >75dB @ 1kHz
• Maximum output: +27dBu
• Input impedance: up to 19kΩ

A/D converter

• Dynamic range: >120dB (A-weighted)
• THD+N: <0.0004%
• Frequency response: up to 79kHz to 192kHz
• Crosstalk: < -140dB at 1kHz

D/A converter and headphone amplifier

• Dynamic range: up to 115dB
• Frequency response: ±0.2dB to 45.9kHz
• Headphone output impedance: 0.5Ω
• Crosstalk: <98dB @ 1kHz

Control features

• Control software for Mac and Windows
• Built-in web control compatible with all browsers
• Control via Ethernet and support for up to 12 m108 units

General Features.

• 1U steel chassis with built-in fan
• Universal 100-240VAC power supply
• 5-year transferable warranty
• Made in the U.S.A.