24 Bit 192 kHz 8-Channel
Full Range Preamp & AD-Converter

The Micstasy's innovative concept allows for amplification and digitization of ALL analog signal sources. Be it high-level stage signals, typical studio signals, lower level and high-impedance instruments, or dynamic, condenser or ribbon microphones: Micstasy understands them all - in a way that is simply thrilling.

Micstasy is an 8-channel hi-end mic/line preamp combining typical RME features with a number of previously unseen features. It can be used analog (Mic/Line In to Line Out) and digital (Mic/Line In to Digital Out), with both signal paths operating simultaneously. Just passing on the amplified signals replaces the need for a splitter box on stage. The device is fully remote-controllable via MIDI or MIDI over MADI.

The most important features of the Micstasy:

• 8 balanced XLR mic/line inputs with 85 dB gain range
• Analog input level from -56.5 dBu up to +30 dBu
• High-end circuitry with 4 relays per channel, super low-noise microphone front-end
• Near click-free gain changes in steps of 0.5 dB
• Large frequency range (200 kHz) with special EMI input filtering
• 8 balanced TRS line / instrument inputs with Hi-Z option
• 8 balanced XLR line outputs, maximum level +27 dBu
• 4 x AES/EBU Out per D-Sub, 8 channels @ 192 kHz
• 2 x ADAT Out, 8 channels @ 96 kHz
• Optional MADI I/O (I64 MADI Card)
• Symmetrical hi-pass (Lo Cut) with super-low THD, 18 dB/oct
• LED level meter with 13 LEDs per channel
• M/S de-/encoding for the digital output
• AutoSet: Automatic gain reduction with multiple linking
• Current state can be stored to 8 user presets
• Fully remote controllable

In a standard 19" box with 2 unit height the device offers numerous extraordinary features like Intelligent Clock Control (ICC), SyncCheck®, SteadyClock, TotalGain, AutoSet, MIDI over MADI, and remote control via MADI and MIDI.

The technologies known from other RME products like SyncCheck® ensure perfect synchronization and clear detection of errors. Also multiple units can be stacked and operated sample-aligned, using word clock. All settings are stored when the unit is switched off.

The Micstasy can be fully remote controlled and configured via MIDI, and all status displays can be queried through MIDI. Each Micstasy can be given a separate ID, allowing separate remote controllability of various devices with only one MIDI channel. The MIDI remote is also compatible to Digidesign's Pro Tools system. The device can thus be remote controlled directly from Pro Tools.

RMEs SteadyClock™ guarantees excellent clock quality in any situation. Due to the highly efficient jitter reduction, the Micstasy's AD-converters operate independently from the quality of the external clock signal, as if they are working with internal clock all the time - guaranteeing a prestine sound quality! Additionally Intelligent Clock Control (ICC) will retain the last valid sample frequency in case of a loss of the input signal.

In the Micstasy RME uses a high-class AD-converter from Cirrus Logic, offering exceptional Signal to Noise and distortion figures. But the biggest difference to all other ADCs out there is its innovative digital filter, achieving for the first time a delay of only 12 samples in Single Speed 0.25 ms), 9 samples in Double Speed 0.09 ms), and 5 (!) samples in Quad Speed (0.026 ms).

These values are less than a quarter of those available from even much more expensive devices. They represent an important step in further reducing the latency in the computer-based recording studio. At DS and QS the added latency can simply be ignored. And with the soon to be released ADI-8 QS, a matching DA-converter with only 5 up to 10 samples delay will turn 'analog digital monitoring' into real analog-style monitoring.

Some preamps include limiters in order to prevent clipping, especially of the A/D converter stage. Such a circuitry is not feasible for the Micstasy, because it would spoil the mic preamp's excellent technical data.

But as the Micstasy's gain is controlled completely digitally, the device can set it automatically, thus providing perfect protection from overload with no degradation of the audio signal, which does not have to pass any additional electronic circuits.

In the Setup menu, the threshold level beyond which the gain will be reduced can be adjusted in four steps (-1, -3, -6, -12 dBFS). Any change of gain will be shown immediately on the GAIN displays. And with AutoSet activated, the gain can still be changed manually.

The I64 MADI Card provides the Micstasy with a 64-channel MADI input and output. Coaxial and and optical output operate in parallel to the AES/EBU and ADAT output, therefore deliver the same data.

The I64 MADI Card features an optical as well as a coaxial MADI input. The input is switched automatically, according to where a valid input signal is detected. Full redundancy is ensured by the automatic input switching, immediately changing to the other input in case of loss of the input signal.

The MADI input will operate as an optional clock source (Clock section, OPTN) as well as a through input. Since each Micstasy uses only 8 channels, up to 56 channels can be passed through. This technique is used to serially cascade several Micstasys. Incoming MADI data is passed through unchanged, only one block of eight channels is replaced. This allows up to 8 devices to be connected serially. All 64 combined channels are available at the last device's MADI output.

With an installed I64 MADI Card the Micstasy can be remote controlled via MADI. At the same time MIDI data are transmitted via MADI.

When multiple devices are connected serially, the MADI I/O of each Micstasy causes a delay of 3 samples. Therefore at the MADI output of the last device, the data of all upstreamed devices are delayed. The problem of this offset is solved by the function Delay Compensation.

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