Perhaps you can start by taking measurements and deciding how much the floor limits your lower usable frequency..
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I've now followed these steps and got the results pictured bellow:
The measurements are as follows: Nearfield then farfield sub. Combination of the two. Farfield tweeter. Drivers in parallel.
Taking the measurements in this fassion seemed to work well, I used the same gate for the farfield measurments of both the sub and the tweeter and used the suggested frequency of 400hz to merge the two subwoofer measurements together. My issues mainly were with the parallel measurement. Should I also be merging this with the subwoofer measurement as when I went to shorten the gate of the parallel one i started to loose more and more of the sub, so to keep the lows in I'm left with quite a distorted looking graph which will be hard (and not ideal) to try and replicate in the speaker design. Is there something that I've done incorrectly on this measurement?
I've designed this crossover based of the parallel speaker measurement shown previously. Are there any major flaws in the design with the component values selected? I'm also not sure on the impedance response as there are a few peaks over 10ohm and my amp is only rated to 8ohm, will this overload the amp or will I be fine as the peaks aren't too large?
I think I may opt to change tack as it seems adapting a poor solution with lots of effects and processing won't deliver great sound. I've been chatting to a mate who works with CAD and he said he might be able to help me make some of these CKT-TF1525e System (https://celestion.com/wp-content/uploads/2019/10/188.pdf), with keeping the woofers I have currently and getting new tweeters and horns for it. Does anyone know if I will need a new amp to power these speakers? I'm trying to power them with a T amp e800 which delivers 2 x 350watts into 8ohms (https://www.thomann.de/gb/the_tamp_e800.htm), will this be too little power for the tf1525e and the CDX1 1747?
Your amplifier should be fine. The woofer deliver 111.5 dB at 5 meters with 350W and the compression driver will deliver 129.8 at 5 meters with 120W (the max continuous power rating of the driver). 60 Watts would get you close to reference levels which are way to load for home listening for me.
