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Grace Design Mic Preamplifier m 108

Grace Design Mic Preamplifier m 108

8 kanaals preamp met digitale aansturing.

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Product omschrijving

M108

8 channel remote controlled mic preamplifier /ADC

THE FINEST SOUNDING, MOST CAPABLE MIC PREAMP WE HAVE EVER CREATED

From 25 years experience of creating acclaimed professional audio products, comes the latest evolution of our mic preamplifier design: the m108. With eight channels of our 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.

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.

Hi Team Grace!

I am a music producer and scoring mixer here in Los Angeles and am a proud owner of an m108 8 channel mic preamp. I am happy to say that my latest film score for Marvel’s Morbius is currently number 1 at the box office and I used my M108 as well as all the M108s at the Sony scoring stage to capture the orchestra of the score. Thanks again for the killer gear!

– Jason LaRocca

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.

CURIOUS ABOUT THE DIFFERENCES BETWEEN THE M108 AND THE M802?

At the core, both mic preamplifiers are quite similar. They both utilize our signature transimpedance (or current feedback) amplifier topology, they have no electrolytic capacitors in their signal paths, and each preamp channel has its own power supply voltage regulators. These are the key ingredients in how we design our mic preamplifiers, which lend very similar sonic performance to both units. However, there are many differences in design execution and features:

The m802 has external, dual redundant power supplies. The power supply unit used in the m108 is the same as the m802 and m905, but the m802 uses two of them for NASA level reliability (more expensive). Redundant or not, this design is currently 100% reliable, without a single failure in the field since the 6 years they have been deployed.

The m802 has two adjustable ADC sensitivity settings which are accessible via setup menus. This requires a fair amount of additional circuitry and components (more expensive). The m108 ADC sensitivity is fixed at +24dBu or +18dBu (at the analog output) for 0dBFS and is changed via internal jumpers (less expensive).

The m802 ribbon mode uses a relay to bypass the input phantom power blocking capacitors (more expensive).In the m108, we use very high quality metalized film capacitors for this which are exceedingly transparent sounding (less expensive).

The m802 has two sets of balanced analog outputs (more expensive) while the m108 has one set (less expensive).

The m802 has separate circuit boards for the preamps, a back plane pcb for interconnect, a controller pcb, and 4 pcbs in the ADC assembly,15 circuit boards in all (very expensive). The m108 has its preamplifiers, ADC, and controller all on one pcb and the digital I/O on another (less expensive). This really makes up the bulk of the cost savings between the two units. As well there are fewer interconnect cables which means less chance of a contact failure.

The m108 has the latest generation clock technology. The clock jitter in the m108 clock is less than 40ps and the PLL has a low frequency corner of around 500mHz (the m802 PLL corner frequency is 10Hz). This gives the m108 an extremely effective barrier to external clock jitter. We are unable to measure any effects of external jitter even at exceedingly high levels which would not be found in a modern well designed digital audio system.

The measured performance of the m108 slightly exceeds that of the m802 in most areas. These include ADC dynamic range, THD+N, external clock jitter rejection.

The rest of the differences are in features, size, weight, and power consumption. The m108 represents the single biggest R&D effort in our company’s history. We really focused on increasing performance and maintaining bomb-proof reliability while reducing the cost of the system. We are really proud of this unit and are amazed with its stunning clarity and musicality.