The AD-20 is a high quality battery operated microphone preamp coupled with a low noise 20 bit ADC. The SPDIF outputs are optical and coaxial and can drive standard consumer DAT machines or computers that accept digital audio I/O cards, such as the Zefiro ZA-2. The main use for the AD-20 is location recording. Most low cost DAT machines have noisy front ends and a good preamp with a higher bit converter can improve the signal to noise by up to 15dB.
|Low battery indicator LED||External 9 volt input for studio work.|
|Low noise 125 dB EIN unweighted at max gain (+45dB)||Long battery life of 8 to 10 hours from one 9 volt battery.|
|Dynamic range at minimum gain (+17dB) is 97dB unweighted||Optional line input cables with 22dB pads (10K input Z)|
|Individual gain pots for left and right.|
|SIZE: 3″ x 5.75″ x 1.25″||INPUT: Balanced 3 pin XLR at 10K|
|WEIGHT: Approximately 1 lbs.||OUTPUT: SPDIF optical and coaxial|
|BATTERY PACK: 6 alkaline “AA” batteries|