The XO24Pro is a studio grade 2-way 24dB/oct Linkwitz/Riley electronic crossover that uses detachable frequency cards to set the crossover frequency. This method is sonically superior compared to adjustable crossovers with their potentiometers.

With these Frequency Module cards, common spot frequencies like 1.5kHz, 2kHz, 2.5kHz, 3.0kHz, 3.5kHz can be assembled for crossing the woofer to the tweeter.

The XO24Pro is equipped with an adjustable delay for the woofer. This allows for Time-Alignment of horn loaded 2-way speakers.

Fig 1: Osprey-12 Low Pass and High Pass

Fig 1 shows the XO24Pro in use with the Osprey-12. The frequency card is at 1.6kHz.

The Blue plot is the 12CX woofer. The Red plot is the Selenium D220ti compression driver that is screwed to the back of the woofer. They are crossing acoustically at 1.6kHz at 24dB/oct.

Fig 2: Osprey-12 Time-Aligned

The violet plot in Fig 2 is with the woofer delay carefully adjusted to time-align the woofer to the compression driver. The deep notch is indicative of time-alignment.

Fig 3: Osprey-12 Time-Algned Frequency Response

Fig 3 is the Time-Aligned response of the Osprey-12. For this measurement, the Selenium D220ti is actually wired in reversed phase.

The XO24Pro is one channel only, therefore two are needed for stereo use. It requires a regulated power supply for the op amp. Our PSU15REG is specially designed for such purpose.

The purchase of the XO24Pro, whether as a Kit or Pcb only, includes one pcb card for the frequency module. Additional cards are available for purchase.

PCB = 6.2" x 3.2" (158mm x 82mm)
Double Sided | FR4

US$ 135.00

Pcb Only
US$ 45.00

Freq Card
US$ 9.50

$40 Minimum Order on Check Out
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