Snell LCR7 XL crossover schematic

Hello, I have recently bought 4 Seas W15CY001 and 2 T25CF002 Millenium for a low price and I’m trying to build a clone of Snell LCR 7 XL . I have listened to these loudspeakers some years ago and I was impressive for the detail and the clean stage. I have look at the review at Stereophile and Audiholics to design the same crossover but after some tentative the results were not as expected, there must be something hidden.
By chance, does anyone has the schematic of the crossover of these beautiful loudspeakers?
Thank you