JL Audio XD700/5 owner manual HP High-PassConfigures the filter

Channel 1 & 2 Filter: 12dB/octave High-Pass only, with x10 multiplier switch

 “Off”: Defeats the filter completely, allowing the full range of frequencies present at the inputs to feed these channels. This is useful for systems utilizing outboard active crossovers or requiring full-range reproduction this channel pair.

 “x1” (High-Pass):Configures the filter

to attenuate frequencies below the indicated filter frequency at a rate of 12dB per octave. This is useful for connection of component speakers or coaxials to this channel pair in a bi-amplified system.

 “x10” (High-Pass):Configures the filter to attenuate frequencies below a frequency TEN TIMES HIGHER than the indicated filter frequency at a rate of 12dB per octave. This is useful for connection of tweeters to this channel pair in a tri-amplified system.

Channel 3 & 4 Filter: 12dB/octave High-Pass or Bandpass Filter

 “Off”: Defeats the filter completely, allowing the full range of frequencies present at the inputs to feed these channels. This is useful for systems utilizing outboard active crossovers or requiring full-range reproduction this channel pair.

 “BP” (High-Pass):Configures the filter to attenuate frequencies below the indicated filter frequency AND above the Channel 1 & 2 Filter Frequency, at a rate of 12dB per octave. This is useful for connection of mid-bass or mid-range speakers in a tri-amplified system.

 “HP” (High-Pass):Configures the filter

to attenuate frequencies below the indicated filter frequency at a rate of 12dB per octave. This is useful for connection of component speakers or coaxials to this channel pair in a bi-amplified system.

Subwoofer Channel Filter: 12dB/octave or 24dB / octave, Low-Pass only

 “Off”: Defeats the filter completely, allowing the full range of frequencies present at the inputs to feed this channel. This is useful for systems utilizing outboard active crossovers.

 “12dB” (Low-Pass):Configures the filter to attenuate frequencies above the indicated filter frequency at a rate of 12dB per octave.

This is useful for connection of subwoofers in a bi-amplified system. This shallower slope gently attenuates high-frequencies from your subwoofer signal and is often well-suited for sedans and coupes with trunks.

 “24dB” (Low-Pass):Configures the filter

to attenuate frequencies above the indicated filter frequency at a rate of 24dB per octave. This is useful for connection of subwoofers in a bi-amplified system. This sharper slope more aggressively removes high-frequencies from your subwoofer signal and is often well-suited for SUV’s, wagons and hatchbacks.

2)“Filter Freq. (Hz)” The filter frequency markings surrounding these rotary controls (one in each Channel Section) are for reference purposes and are generally accurate to within 1/3 octave or better. If you would like to select the filter cutoff frequency with a higher level of precision, consult the chart in Appendix B (page 15).

Tuning Hint:  If you are using the XD700/5 to drive a subwoofer system (“LP” mode), and component satellite speaker systems (“HP” mode), 80 Hz is a good baseline “Filter Freq. (Hz)” setting. After properly adjusting the “Input Sens.”, as outlined in Appendix A (page 14), you can fine tune the “Filter Freq. (Hz)” control to achieve the desired system frequency response.

8 JL Audio - XD700/5 Owner’s Manual