The Crossover Calibrator’s circuitry is digital microprocessor controlled | Crossover -3dB point accuracy +/- 0.25dB | Low Battery LED trigger battery voltage < 6.5Vdc | Auto-shut off timer 8 - 10 minutes after ON button is pressed
Distortion detector/analyzer (dd1) | Distortion detector's circuitry is 100% analog | Distortion detection trigger level > 1.0% harmonic distortion | Operating range of input signal is 1.2 vrms a" 125 vrms, (15, 000 watts at 1 ohm) | Signal present LED trigger voltage 750 mvrms