Eight Jensen Transformer Coupled Remote Mic Preamps
The 1788A provides eight balanced Jensen transformer-coupled microphone inputs with two sets of analog outputs for each channel. The optional digital output module allows simultaneous output of 24 bit AES/EBU, TDIF and ADAT Optical. Remote control of the 1788A from Avid and Yamaha consoles is possible with the Model 5200 MIDI / RS-422 to LAN Remote Control Interface.
LeNA, the patented digitally controlled Low Noise Amplifier, allows the 1788A's input gain to be adjusted in ¼ dB steps, without noise or glitches.
The MicLim microphone limiter makes the 1788A virtually impervious to input clipping. This makes the 1788 the perfect front end to any DAW, digital recorder, or digital console.
By placing the 1788A close to the microphones and controlling it remotely, long mic level runs and the associated noise are eliminated. By providing up to five outputs (with the 1788A-1 Digital Option), that are usable simultaneously, the need for splitter boxes is essentially eliminated.
With a PC or Mac running the 1788SW controller software (Win 95/98/2000/XP® or Mac OS X® compatible), a screen which displays all parameters and metering of one unit at a time and up to 16 units may be called up displaying all channel status information and metering in real time that can be selected and modified. Up to 20 scenes can be saved, modified and recalled in the control software. The software also contains a 'learn' function in which the channel(s) adjust the preamp gain to a definable peak value based on the input level during the 'learn' time.
Digital Option - In addition to the analog outputs, the Model 1788A can have a 1788A-1 Digital Option installed with three digital outputs. Digital outputs appear on two DB25 connectors, one for AES/EBU and one for the TDIF format along with an optical output for the ADAT format. The analog to digital converters are 24 bit with selectable sampling rates. The sampling rates can be generated from an internal clock or an external source. The Model 1788 employs a drift stabilized A/D converter circuit which eliminates DC without incorporating a digital high pass filter. There is an AES/EBU input on an XLR and a Word Clock on a BNC connector for external clock input. If the unit is being used as a master there is an AES/EBU output on an XLR and Word Clock on a BNC.
