The AEB4-I (Analog Expansion Board) adds 4 analog inputs in professional quality to all ADAT capable cards of the DIGI96 series. Level adjustment +4 dBu/-10 dBV, 107 dBA SNR and a servo balanced input circuit deliver perfect sound and sonic clarity.



The AEB4-I is designed for maximum flexibility. Both stereo inputs 1/2 3/4 are automatically copied to channels 5/6 and 7/8. Installation is done in a convinient manner using the supplied bracket, or - as no contact to any slot on the motherboard is needed - at any place inside the computer. Nuts for all TRS jacks and a drilling template are included.

Technical Specifications and Features



Input AEB4-I 4 x 1/4" TRS jack, servo balanced


Dynamic ratio 104 dB (RMS unweighted), 107 dBA


THD+N -95 dB (0.0017 %)


Frequency response -0.1 dB: 10 Hz - 21 kHz


Input level for 0 dBFS @ +4 dBu: +12 dBu


Input level for 0 dBFS @ -10 dBV: +2 dBV


Crosstalk > 110 dB


Supported sample rates 32 kHz - 48 kHz


Input impedance 10 kOhm


Power supply uses 3.5" floppy connector, 12 V/5 V DC, 190 mA


AEB needs no slot on the motherboard


Standard bracket, board dimensions AEB4: 85 x 95 mm

1 internal cable 2-pin, 1 internal cable 3-pin, 1 power adapter cable 5 1/4" to 2 x 3.5" included

MPN: AEB4-I
UPC: 400000013695

Notes on Compatibility



DIGI96 Series



AEBs use the internal ADAT interface of the DIGI cards. Therefore they do not work with the DIGI96 (which did not support ADAT). To operate the AEB4-I and AEB8-I the used DIGIs must have the connectors ST6/7 on board (for the Word Clock Module). These were not present on the very first cards of the DIGI96 series (1998 to beginning of 1999).



One AEBx-I and one AEBx-O can be connected and operated simultaneously, in all possible combinations.



Hammerfall Series



An operation with the Hammerfall or Hammerfall Light requires board revision 1.5 or higher, because the internal connectors ADAT1Out, ADAT2Out and ST7 were not implemented in earlier versions.



One AEBx-I and two AEBx-O can be connected and operated simultaneously, in all possible combinations.