rcf drivers on fire

hey, couple months ago i did a gig with 4x186 horns mounted with l18p300 and i did manage to burn 2 of them, i fed them like 800w each, HPF at 30hz.

Another gig is up in 2 weeks and im doing some changes to pass it without problems, i set HPF at 42hz hoping it would help drivers stay cool (cooler). Will this help ? I know part of the problem is the closed chamber and week diver like l18p300 can have problems to survive. 

Edited by Andry - 21 March 2024 at 9:27am

Measure cabs, and try to model them on hornresp (amount of cabinets effects results). That way you get an estimate of cone excursion. Keep some excursion below F3 to help with cooling the VC down. 

You should be able to get it running quite quickly using Winebottler - https://winebottler.kronenberg.org/

Oh that are some bad news for me , well it was powered by fp10000q and processed by dbmark dp28, i still dont understand limiters on the thing (i sould look into these for sure) so there was no limiting settings and i just took care about the gain. Interesting part is that the drivers lasted the whole party (like 10 hours), i did find out they are fried later at home, they were still playing just fine but the cone movement wasnt smooth so they were not blasted in couple of minutes, it seemed to me it was long term overpowering by a little amout, im not arguing about your statement about 250w byt that seems real low 

this friday i did another gig, this time i set up peak limiters and changed xover settings to 51hz - 100hz. I expected some (not that noticable) positive results but the change from lost gig was masive, the 30hz-50hz was lacking but the SPL went up hard... i would say worth it, none of the drivers were fried and i even think they can take some more beating but lets not push it, still im gonna do some more gigs with this setup and then buy pd1850s and kick l18p300 out