Trident Hi-Lo - 500 Series Tracking Filters

Hi-Lo Dynamic Filtering. The Hi-Lo is not just a filter. Trident Audio has created an analog adaptive filtering circuit for the 500 Series format. The Trident Hi-Lo, an adaptive Hi-Cut/Lo-Cut frequency filtering module that responds dynamically to program material, providing a high degree of control and signal enhancement, unavailable in any modern-day 500 series package. The Hi-Cut This is a sweepable low pass filter with unity gain in the selected passband and a selectable (12dB per octave or 24dB per octave) roll-off outside the passband. The cutoff frequency can be set from 75Hz to 24kHz. In addition, a RESONANCE control can be switched into circuit, to introduce a resonant peak at the selected cutoff frequency. The size of this peak, which is dependant on the elected frequency selected on the front panel, can be varied from zero to approximately +12dB. At maximum setting, RESONANCE stops just short of self-oscillation. A HI-CUT ENABLE switch allows each individual frequency band o