NS10 speaker restoration

[vintagesoundguy]

gday all

My NS10 cones have lost their brilliant white and are now more like smoky brown. I would love to get them back to original white. Has anyone had a go at this I need some advice on what to use to remove the discolouring.

Also one has a slight tear 2 inches long I can't discern any difference in the sound but just in case it gets worse is there any way to repair it or should I just replace them?
I know they are available on ebay in the US but are there any suppliers in Oz? Do Yamaha sell direct?

kind regards
Dale

[Kurt]

Dunno about repairing monitors but I've succesfully fixed tears in PA drivers with watered down aquadhere and a rollie paper. I'd use a damp sponge and soapy water for cleaning the cones, once again, works fine on PA speakers (beer, spit, blood, and general filth)

[heathen]

Mine are smoky browny white, don't fix them the tar makes them sound better. :)