I'm posting .txt files that you can convert to .frd or .zma if your simulator needs it. I derived frequency files with about 10ms gate time. I didn't merge it to get low frequency response of woofer (under 120Hz) because i'm not interested in it. In the .zip file that is available for download from my DB account there is another .zip file that can be uploaded to HolmImpulse if you are not satisfied how i extracted sim files so you can do it as you see fit. All measurements are done from about 108cm on axis and approximately 30 degrees off axis. It is not good as 0-180 in 10 degrees increments but if you cross it over between 2000-2800Hz you won't get into trouble. Any fine tuning i recommend to be done by measuring and listening of your drivers.
If there's anything that you want me to do (other than measuring TS for woofers because i'm not doin' it) feel free to ask.
Dropbox - Kef LS50 measurements and sim files.zip - Simplify your life
Measurements done with calibrated Behringer ECM8000, M-audio FastTrack USB, Holmimpulse.
Measurement conditions
https://postimg.cc/jwb740fb
https://i.postimg.cc/B68BsJQX/IMG-2671.jpg
Midwoofer and tweeter
https://postimg.cc/7bX20RYF
https://i.postimg.cc/gkbHFF92/50-a.png
https://postimg.cc/qgpKtr0c
https://i.postimg.cc/1RqrjRjd/50.png
Simulation of Kef's factory crossover: frequency, impedance and phase response
https://postimg.cc/dZQZg2nN
https://i.postimg.cc/yxchgnRK/LS50.png
https://postimg.cc/WFwJ9WmJ
https://i.postimg.cc/QtRkdvHS/LS50.png
https://postimg.cc/qg2mr4w8
https://i.postimg.cc/QNyvpMWn/50.png
Few comments:
In Kef LS50 they've seem to have done around 8dB baffle step compensation for midwoofer. That sounds like a lot but surprisingly it doesn't sound that bad at all. I guess that it doesn't go much low so it kinda evens out. Tweeter level is set, as can be seen, a 1.5-2dB higher than midwoofer. Again, i'm surprised that it isn't perceived like overly bright. You can hear it being louder but it doesn't make you want to turn the volume down - quite strange actually, unlike any metal dome i've listened so far. Also, good thing i've prepared and measured both cabinets because there are few measured differences between drivers. You'll see.
So, that being said, feel free to share what you've achieved with this or with your LS50's. I know i will.
EDIT: Couple of guys chimed in also so this is our take on KEF LS50 ALTERNATIVE CROSSOVER:
Zvu PSM XO
Göran
XMechanik
Enjoy and have fun.
Hi Zvo
I am thinking of buying the LS50 but I am not 100% convinced to its slightly dark sound. I like more the high's with Kef Ls3/5a, they are more aerated. Is it possible to get high's as in the Ls3/5a by replacing the standard ESA capacitor with the Jantzen Superior Z-Cup? If I buy LS50, probably I will modify to the X-over like you.
Regards