Hello! I hope it’s okay to post here. It’s been a while.
I plan to convert my 4367 pair into a four driver active setup using digital crossovers.
I posted some pictures and video over here:
https://www.audiosciencereview.com/f...os-video.2293/
I would love feedback from you folks. I am experienced with digital crossovers. I currently use software called Audiolense. This is my plan:
1. Measure my 4367 speaker HF and LF separated out so I can see where the crossover point should be and get a good idea of the slope.
2. Remove 2 speaker terminals so that there’s two holes through which I can feed two cables per speaker.
3. Disconnect the D2 compression driver from the XO board. Connect a speaker cable with 1/4” slide on spade female connectors. Connect the cable to my AHB2 amp. Set AHB2 amp to lowest output gain.
4. Disconnect midwoofer from XO board. Connect bare wire speaker cable to midwoofer. Connect that cable to 2nd AHB2 amp which will be set to a higher gain.
I use a Lynx Hilo so routing and channel count isn’t an issue. I’m familiar with the Hilo mixer and know how to use output mix routing page on the Hilo.
5. Define a custom pink noise in REW around the crossover region. Play the tone and level match the D2 and midwoofer using analog gain setting or analog output voltage settings on the DAC.
6. Setup crossover and slope in Audiolense which closely matches the crossover and slopes previously measured using REW.
7. Setup routing and record log sweeps in Audiolense.
8. I will use a preferred target curve.
9. Perform loopback measurements using REW loopback into Jriver through convolver.
My setup also also includes a couple of subs. But I want to leave them out of the discussion for now. I currently cross my 4367 speakers over to mono subs around 90hz. So I’ll keep that the same since I know it works well.
Thank you.
Michael.