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Aphex 1788A 8 channel preamplifier w/digital I/O card

Estimated price for orientation: 1 200 $

Category: Preamps and Channel Strips
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Description
Condition: Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition Brand: Aphex
Number of Channels: 8 Type: Microphone Preamp
Features: Digital Output, Limiter, Wordclock I/O Model: 1788A
Country/Region of Manufacture: United States


Eight Jensen Transformer Coupled Remote Mic PreampsThe 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 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 one DB15 connector and four BNC connectors for AES/EBU 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 Word Clock input and output on BNC connectors.

Frequency Response 10Hz – 38 kHz (± 0.5dB)Hum and Noise -125 dBu EINTHD + N .003% @ +4dBu outSMPTE IMD DIM Crosstalk MICROPHONE INPUTSConnector XLR-3FType Jensen® Transformer coupledImpedance Balanced, 1.6k ohmsMaximum Input Level +27 dBu (with 26dB pad engaged)CMRR better than -99dB @ 60 Hz, -72 dB @10kHzPhantom Power 48 VDC on pins 2 and 3ANALOG OUTPUTSConnector Main: (8) x XLR-3M; Aux: DB-25 (Tascam)Type Main: Servo Balanced; Aux: BalancedImpedance Balanced , 65 ohmsMaximum Output Level +27dBuTest Tone 700 Hz 0dBfs, -20dBfsHeadphones 8-600 ohms recommended load impedance, mono or stereoDIGITAL OUTPUTSConnector AES/EBU: DB-15 MaleADAT Optical:TOSLINKT/DIF: DB-25Type Drift Stabilized 24 bitImpedance 75 ohms (AES/EBU)Clock 44.1, 48, or 96kHz Internal or ExternalClock Connector BNCREMOTE CONTROL1788SW Software (W95/98/2000) Full remote control functions, Full metering and preamp status, Select one of 16 units, Create, Save, Edit, Recall up to 60 presets, Assignable up to 20 scenesMIDI Controller MIDI command protocol for full remote control, metering, and statusConnection:Remote to 1788 RS232, RS422, MIDIUnit to unit linking RS422 – up to 16 units can be controlled from one interface (128 channels)Remote Functions Input Gain, Main Out Gain, Aux Out Gain, Polarity, Mute, Low Cut Filter, Mute, Pad, Phantom Power, Sample Clock, Test Tone, Group Assign, Snapshot, Recall PresetsOTHER SPECIFICATIONSPower requir