MAX was an 8" 2way using the HiVi M8a and DX25. They were a bear to blend, xover was around 1.6kHz. I built these around 15 years ago. The Directivity really never quite got dialed in completely. In some rooms they sounded hot, others dynamic and detailed, and never dull. Their recipient has lacking upper range hearing and he loves them. The sensitivity was around 88dB, and they were the biggest bookshelf design I did at 34 ltrs.
I built a 4th order LR for the one pair of speakers, and I never got it sounding quite right. It was an interesting exercise, but I've since decided I never want to do another passive crossover again as they are tough to get right and hard to build (i.e. need custom parts not just lying around).
its not mine but a documented story about a complex filter for a fullrange showing the benefit of this work
don highend squeezed with a sophisticated filtering maximim linearity from the driver, design called "grand petit"
https://www.donhighend.de/?page_id=10899
https://www.donhighend.de/?page_id=10899
612SP is very close to what I put into my HPM900 the speakers are exceptional now.
That's a fun veneer. That big series / parallel chunk looks like a beast! I have been considering going back and measuring some of the fullrange speakers I have made to see what some passive filtration might do for them.
@AdamThorne
he even manages to "fill up" frequency drops, this is some higher knowledge about what a crossover can do to a driver
You can EQ all with dsp but with a passive filter distortion goes significantly down. Due to a little bit of current drive with the simple resistor method
he even manages to "fill up" frequency drops, this is some higher knowledge about what a crossover can do to a driver
You can EQ all with dsp but with a passive filter distortion goes significantly down. Due to a little bit of current drive with the simple resistor method
It's driving me mad not to scan the driver's published specs and give it a go in a crossover builder myself.