Contact Our Expert Sales Team:

888-462-7828

Grace Design m108 - 8-Channel Microphone Preamplifier

 
  • Dale #:

    GRAC-M108
  • Availability:

    Not in Stock - Reserve Yours
  • This item is not in stock and needs to be ordered from the manufacturer. Your payment will be charged after completing checkout. We will strive to ship as soon as possible, pending availability.

Special Savings! 10% Off!
Purchase by May 31st, 2025 and get 10% off MAP!
Selling price reflects instant savings.

Description

From 25 years experience of creating acclaimed professional audio products, comes the latest evolution of Grace Design's mic preamplifier design: the m108. With eight channels of transparent, musical mic preamplification, state of the art A/D conversion, multiple digital output formats, and flex... Read More

Free Shipping (Continental US)

Have a Question?

Call Toll Free: 888-462-7828 Live Chat Email Us

Suggested Accessories

Description

From 25 years experience of creating acclaimed professional audio products, comes the latest evolution of Grace Design's mic preamplifier design: the m108. With eight channels of transparent, musical mic preamplification, state of the art A/D conversion, multiple digital output formats, and flexible local or remote controlled operation, the m108 is a vital addition to any modern audio production environment.

Features:

  • 8 channels of balanced analog preamp outputs
  • 8 channels of transparent, musical mic preamplifier
  • Wide gain range: -6 to 69dB
  • Ribbon mic mode
  • 8 channels of 192kHz ADC outputs via AES, ADAT (4ch SMUX) and USB Class 2
  • External Word clock in and out
  • Reference DAC and headphone amplifier for low-latency monitoring of channel pairs or USB playback from a computer
  • Channel 1 / 2 HI-Z inputs on front panel
  • High contrast, wide viewing angle OLED display for all system parameters and setup menu
  • Combination RS 485/422 serial / MIDI ports for control from existing m802 RCU or Protools™
  • Control App (Win and Mac, coming soon) can control up to 96 channels over Ethernet
  • Simple web browser control built in, works with all modern browsers including iOS and Android
  • RJ45 Ethernet port for network control
  • Expansion slot for optional Dante, Digilink, or Ravenna (AES67 / ST2110) audio card
  • Cooling fan for reliable operation in the harshest environments
  • Built in 100-240VAC universal AC power supply
  • 5 year transferable warranty
  • Made in the USA

UNRIVALED PERFORMANCE
Our transformerless, transimpedance mic preamp design is unmatched in its ability to effortlessly resolve complex sonic waveforms, resulting in recordings of amazing clarity and depth. Integrated A/D conversion delivers digital signals to the workstation that are pure and beautiful. Latest generation s-Lock PLL ensures pristine, jitter free sample clock when clocking from external word clock or Dante clock. And an asynchronous mode USB interface provides the best possible jitter performance when connected to a computer.

SIMPLE OPERATION
A push-button rotary encoder is used for navigating and operation, with a user interface that is simple and intuitive. Dedicated push-buttons are assigned to core functions: 48V phantom power, phase reverse, channel grouping and meter peak clear. A crisp OLED screen displays complete system information, including channel gain settings, metering, peak status, and the system setup menu.

POWERFUL CONFIGURATION
Based on the acclaimed success of our m802 remote controlled mic preamplifier, the m108 distills the best of these achievements into a sleek, elegant 1U chassis design. Our transformerless, transimpedance mic preamp design is unmatched in its ability to effortlessly resolve complex sonic waveforms, resulting in recordings of amazing clarity and depth. Integrated A/D conversion delivers digital signals to the workstation that are pure and beautiful. Latest generation s-Lock PLL ensures pristine, jitter free sample clock when clocking from external word clock or Dante clock. And an asynchronous mode USB interface provides the best possible jitter performance when connected to a computer.

EVOLVED I/O CAPABILITY
The m108 is capable of connecting to a wide array of equipment with modern audio formats. Standard output connectivity includes balanced analog, AES3, ADAT and USB. The option slot allows users to add cards for Digilink, Dante or Ravenna (including ST2110 / AES67). Additionally, a Control Room Output (CRO) card can be installed in the option slot, allowing the m108 to act as a monitor controller for a pair of studio monitors.

Grace Design Remote Control Software
The m108 Control Software application allows for control of up to 12 m108 preamplifiers using the Ethernet control port on the m108. Each preamplifier in the system will have a dedicated control panel for operating the microphone preamplifiers, ADC, and clocking parameters. The control application allows for the creation of channel groups as well as saving and recalling presets. The application runs under Windows (7,8.1,10) and Mac OS (10.11). For control of the m108 via Android or iOS use the m108 web interface.

m108 Web Browser Control
The m108 has a built-in web browser controller allowing remote control from most web enabled Mac, Windows, iOS and Android devices. This control has been optimized for Chrome, but will operate on most modern web browsers (excluding Internet Explorer). This makes control of any m108 on an ip LAN as simple as entering the m108’s IP address into the browser’s navigation window, and the web browser control from that preamp will automatically load and connect. See the m108 owner’s manual for complete details.

More +

Product Specs

MICROPHONE PREAMPLIFIER – Analog IN to Analog OUT
Frequency Response @ 40dB gain ± 0.2dB (50Ω source) 15Hz-300kHz
@ 40dB gain ± 3dB (50Ω source) 4.5Hz-1.0MHz
THD+N @ 20dB gain +20dBu out, 1kHz <.0003%
@ 40dB gain +20dBu out, 1kHz <.0010%
@ 60dB gain +20dBu out, 1kHz <.0080%
Intermodulation Distortion @ 40dB gain +20dBu out
SMPTE/DIN 1:1 (50Hz, 7kHz) <.001%
SMPTE/DIN 4:1 (50Hz, 7kHz) <.0020%
Noise - Referred to Input @ 60dB gain, 50Ω source -129dB
@ 60dB gain, 150Ω source -127dB
@ 60dB gain, 600Ω source -123dB
Phase Deviation 40-20KHz @ 40dB gain <5°
Crosstalk Any Channel @ 40dB gain 1kHz -127dB
Any Channel @ 40dB gain 10kHz -113dB
CMRR @ 60dB gain, +20dBu CM, 1kHz >75dB
@ 60dB gain, +20dBu CM, 10kHz >85dB
@ 60dB gain, +20dBu CM, 60Hz >55dB
Maximum Output Level Balanced, 1kHz, 100kΩ Load: +27dBu
Balanced, 1kHz, 600Ω Load: +23dBu
Unbalanced, 1kHz, 100kΩ Load: +21dBu
Impedance Input Ribbon Mode (+48V OFF): 19kΩ
Input +48V ON: 8kΩ
A D CONVERTER - All measurements at 15dB Gain, Fs=48kHz unless otherwise noted.
Dynamic range 22Hz-24kHz, 14dB Gain, 48kHz: >117dB
“A” weighted, 14dB Gain, 48kHz: >120dB
THD+N 1kHz, -1dBFS, 15dB Gain 20Hz-22kHz: < 0.0004%
Intermodulation Distortion IMD SMPTE 4:1 60Hz, 7kHz, -3dBFS: <0.002%
Frequency response (+/-0.2dB, -3dB) 44.1kHz / Fs: 15Hz-21kHz / 6Hz-22kHz
48kHz / Fs: 15Hz-23kHz / 6Hz-24kHz
88.2kHz / Fs: 15Hz-41kHz / 6Hz-44kHz
96kHz / Fs: 15Hz-45kHz / 6Hz-48kHz
176.4kHz / Fs: 15Hz-54kHz / 6Hz-72.5kHz
192kHz / Fs: 15Hz-59kHz / 6Hz-79kHz
Full scale input level, analog output @ 0dBFS +24dBu
Crosstalk Interchannel crosstalk, 1kHz < -140dB
Interchannel crosstalk, 10kHz < -130dB
Group Delay , AES3 Out <22/Fs 44.1kHz Fs: <0.5ms
48kHz Fs: <0.5ms
88.2kHz Fs: <0.25ms
96kHz Fs: <0.25ms
176.4kHz Fs: <0.13ms
192kHz Fs: <0.13ms
DA CONVERTER Headphone Amplifer - All measurements at Fs=48kHz unless otherwise noted.
THD+N 0dBFS In, Volume + 90, +8dBu Out, 22Hz-22kHz BW <0.0006%
0dBFS In, 1.0V Out (31mW), 22Hz-22kHz BW, 32Ω load <0.0025%
Intermodulation Distortion SMTPE/DIN 4:1 50Hz, 7kHz, 1.0V out, no load <0.008%
SMTPE/DIN 4:1 50Hz, 7kHz, 1.0V out, 32Ω load <0.008%
Frequency response Fs=96kHz , ±3dB 0.5-45.9kHz
Fs=96kHz , ±0.2dB 0.5-45.9kHz
Dynamic Range 20-22kHz bandwidth 112dB
20-22kHz bandwidth and A weighting flter 115dB
Output Noise 20-22kHz, volume=0-90 -104dBu
A weighting flter, volume = 0-90 -106dBu
20-22kHz, volume=90.5-99.5 -97dBu
A weighting flter, volume = 90.5-99.5 -100dBu
Crosstalk 1kHz <98dB
20kHz <72dB
Attenuation Range 0 to -99dB, 0.5dB steps
Channel Tracking Accuracy +/-0.05dB
Maximum Output Level +18dBu
Impedance Headphone Output Impedance: 0.5Ω
Control Room Output Module Line Output :47.5 Ohms
Clocking and general
Supported Sample Rates 44.1, 48, 88.2, 96, 176.4, 192 kHz
External Clock Lock Range FS ± 1.5%
Intrinsic Jitter, 10Hz-20kHz BW Internal Clock: < 40ps RMS
External Clock: < 40ps RMS
Jitter Rejection Corner Frequency 500mHz
Dimensions 1U rack mount W16.75 x D10”
Weight 5.2lbs (2.3kg)
Power Consumption 90-250V~ 50-60Hz 25 Watts

More +

Shipping Rate Calculator

 

Also Popular