Depends. the classic kit doesnt even use a low pass filter.
https://www.madisoundspeakerstore.c...6-10-2-way-kit-pair-based-on-the-classic-a25/
https://www.madisoundspeakerstore.c...6-10-2-way-kit-pair-based-on-the-classic-a25/
Hi,
Its simply near 3KHz first order electrical on the tweeter.
Acoustic x/o point is somewhat harder to work out.
rgds, sreten.
Its simply near 3KHz first order electrical on the tweeter.
Acoustic x/o point is somewhat harder to work out.
rgds, sreten.
SEAS A26 Kit
Most likely 2kHz, IMO. That's why you need the big tweeter.
Without any bass coil, the -6dB point of the SEAS A26RE4 woofer is certainly about 2kHz. Below.
Peter Comeau used a tidge of slope and a notch in his similar WDA25 EX design, but not much:
http://www.hi-fiworld.co.uk/loudspeakers/68-technology/142-designing-loudspeakers-wd25a-the-final-crossover.html
Most likely 2kHz, IMO. That's why you need the big tweeter.
Without any bass coil, the -6dB point of the SEAS A26RE4 woofer is certainly about 2kHz. Below.
Peter Comeau used a tidge of slope and a notch in his similar WDA25 EX design, but not much:
http://www.hi-fiworld.co.uk/loudspeakers/68-technology/142-designing-loudspeakers-wd25a-the-final-crossover.html
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Years ago I measured the A25 with a slow sweep, and the acoustical crossover notch
from the out-of-phase drivers was around 2kHz.
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