The EC-2 is an optional 96kHz sampling rate analog hardware upgrade designed exclusively for the Alesis ADAT HD24. It provides 24 simultaneous channels of balanced +4 dBu analog audio inputs and outputs via 48 1/4” TRS type jacks. The EC-2 is installed directly inside the HD24’s rear panel, in place of the original A/D and D/A boards, for simple system integration and flexibility. With the EC-2 installed, the HD24 can record and play back digital audio at the 96kHz or 88.2 kHz sampling rates (in addition to the standard 44.1 and 48 kHzrates) via its analog inputs and outputs. In high sample rate mode, the HD24 can record and play back up to 12 tracks at a time.

Specifications

Sample Rates

44.1, 48, 88.2, and 96kHz (each variable at +/- 12%)
Connections

24 24-bit analog inputs, 24 24-bit analog outputs (1/4" TRS, +4dBu)
Frequency Response

22Hz-44kHz +/-0.5dB
Dynamic Range

113dB A/D/A (A-weighted)
Distortion

<0.002% THD+N
Input Levels

Nominal +4dBu, maximum +19dBu
Output Levels

Nominal +4dBu, maximum +19dBu