Dynaudio 17w75 cosmetic? damage

[raincheck]

Hi,
Has anyone had any method to "restore" a pushed in cone(center convex part). The poly material seems pretty stiff I dont think i can can "pull" it out with tape.

Would this damage in any way compromise sound quality? There is no other damage.

Thanks!!

 

[sandro]

take a needle (those things that your wife or mother uses to repair your socks !), don't use it to torture the suspected guilty but carefully 'pin' the bent diaphgram and work your way to reshape it using the needle as a lever.
After that, with a SMALL drop of sylicon glue close all the neddle holes in the cone (a toothstick is a great tool to place the glue)
PS: give the glue the right time to dry before crank up the volume again and (seriously now) check if the coil is not damaged : gently and slowly push and pull the cone with your fingers (apply the force near the center) and listen: if you hear a kind of scratch noise, it could be that the coil was ovalized by the hit and is touching his 'walls'.

Good luck
sandro

 

[Hans]

Raincheck, I'm afraid you used the needle already. My solution: a vacuum cleaner. Very gently put the hose of the vacuumcleaner towards the indented part. Put the cleaner on the lowest gear or open the vent to minimize the suck. Don't touch the speaker. Maybe you should stop the rest of the membrane from coming to the hose (is that the right word?) by holding your finger to it. I did this many times with damaged dome tweeters (the d28-2, by the way). Maybe it helps with your 17w75 (I have the ...xl)
Good luck, Hans

 

[Hans]

One more remark. Now I posted my reply I suddenly realise the dome is very sturdy indeed. So maybe...., but try.
Hans