The Grace Design m108 8-Channel Remote-Controlled Mic Preamplifier / ADC with Control Room Output Upgrade Card Kit from B&H adds an expansion card with a pair of balanced 1/4" TRS outputs for monitoring to the m108. The outputs are controlled by the Volume and Mute controls on the front panel of the m108. The card must be installed by the user in the unit's expansion slot and features two selectable output gain ranges to ensure compatibility with a wide range of amplifiers and powered speakers.
The Grace Design m108 is a rack-mountable eight-channel preamplifier and ADC providing connection points for eight microphones on the rear panel, as well as two Hi-Z instrument inputs on the front. With this unit, you can either achieve analog amplification through its transformerless, transimpedance design, or utilize its on-board conversion stages to route signal into your DAW in a variety of digital output formats, including AES, ADAT, and USB. The unit is also remote-controllable, able to receive commands from Grace's m802 remote control unit or Pro Tools via on-board 485/422 serial / MIDI ports.
Its push-button rotary knob handles the navigating and instantiation of various operations, though dedicated push-buttons are assigned for essential needs, such as 48V phantom power switching, phase reversal, channel grouping, and clearing peaks on the meter. A headphone output with integrated headphone amplifier allows for low-latency monitoring of assignable channel pairs, or for listening to USB playback from a source-computer.
The m108 features word clock I/Os and optional expansion slots to interface with Dante networks. Furthermore, this device is compatible with m802s, so you integrate this unit into any existing m802 system
- 8 channels of balanced analog preamp outputs
- 8 mic preamplifiers
- Gain range of -8 to 74 dB
- Ribbon mic mode
- 8 channels of 192 kHz 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 and 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 Pro Tools
- RJ45 Ethernet port for network control
- Expansion slot for optional Audinate / Dante network audio card
- On-board Cooling fan
- Built-in 100-240 VAC power supply
- Made in the USA
The Control Room Output Option Module for m108 Microphone Preamplifier / ADC (Upgrade) adds a pair of balanced 1/4" TRS outputs for monitoring to your m108. The expansion card offers two gain settings to ensure compatibility with a wide range of amps and powered speakers, with typical volume settings ranging between 60 and 90.