Speaker Dimple

Very carefully vacuum cleaner hose.. use a guard to keep it OFF the surface of the dome. close is all you need.

I've used the tape and vacuum methods over the years. For me, vacuum was easiest. As Elizabeth stated, just get close, don't touch the speaker dome. Use a guard of some type or rest your arm against the face of the speaker, hold the vacuum nozzle firmly in both hands and gently move the nozzle toward the dome. Don't get too close or you are going to have difficulty controlling the nozzle and you may end up causing more damage that you originally had on the dome!

BTW, it might help for you to practice first without the vacuum turned on. You can also just practice on any other surface with the vacuum tunred on so you will know at what distance the vacuum pressure becomes difficult to control.

Enjoy,

TIC

I've used the vacuum method. Worked pretty well, but there's still a very
slight imperfection.

I read just recently that one speaker manufacture suggests using a hair dryer
at low setting (I think it was Von Schweikert). Apparently, the new VS driver
domes are made of a material that restores its shape when heated.

Not sure if a silk dome would respond in the same manner.

BTW, I've swapped the speakers left and right (and back again) to listen for
any discernible effect to the sound caused by the dimple, and I could not
detect any.

Use a guard of some type or rest your arm against the face of the speaker, hold the vacuum nozzle firmly in both hands and gently move the nozzle toward the dome. Don't get too close or you are going to have difficulty controlling the nozzle

I read about that method in Dr Comfort's "Joy of Audio" - never tried it though ;-)

With the vacuum use the bypass opening usually on the wand to regulate a lower amount of force.