Hi
My speaker, One chanel tweeter (

)is blown out and would like to buy one to replace. Please advise
1/ whether it can be purchased in one piece instead of pair basis.
2/ as my speaker steel mask is not in circluar shape, if a new tweeter comes, I have to remove the new tweeter's steel mask by screw out 4 screws. It is possible without damage the tweeter.
3/ where is the lowest cost to buy Scanspeak tweeter.
Tks