CROSSOVER AND FILTER ADJUSTMENTS
The crossover and filter gain adjust- ments can be performed two different ways, by using a piece of audio test equipment called an RTA (Real Time Analyzer) or by listening to a familiar piece of music. The RTA is most commonly used to achieve the flattest possible system response in preparation for a
1.Set all filter gain controls to their flat setting by adjusting all the filter knobs to the center or 0 setting when they are extended and set to their in position.
2.Set all frequency controls to their flat setting by adjusting all the filter knobs knobs to the flat or 0 setting when they are extended and set to their out position.
3.If using the dedicated subwoofer output, set its gain and frequency control to the center position.
NOTE: | When interfacing Directed class d amplifiers with non- |
| defeatable |
| crossover point to its highest frequency setting. |
4.Turn on the head unit and play a familiar piece of music as reference material.
5.If the front and rear outputs have been set to high pass by setting the switch on the rear panel to the high pass setting, adjust the front crossover to the lowest possible setting with a minimum of distor- tion. Repeat for the rear speakers.
6.At this time adjust the subwoofer frequency and volume to match the crossover settings for the satellite speakers. When set properly the bass should not be localized and voices should not be heard through the subwoofers.
7.Adjusting the frequency control knobs out direction from center will change the center frequency and bandwidth parameter for that particular filter. The higher the frequency (clockwise) for a filter the wider bandwidth, the lower the frequency
8.Once the center frequencies and bandwidth have been adjusted controls have been set, use the filter gains (filter knob’s in position) to fine tune the system for differing tastes in music or material.
© 2002 Directed Electronics, Inc | 11 |
