Ribbon Tweeters and Animal Hair

To keep those clean, use compressed air AT A DISTANCE.  Blow them out a couple of times a year and you'll be fine.  1 1/2 to 2' away from a can of compressed air.

Always keep pets away from delicate gear. A good blast with pressurized air for cleaning on occasion sounds like a good idea to me.  👍

@oldhvymecI have the sierra towers with the raal ribbons. It's my first pair of ribbons so I can't compare. They are different from the ones on the sierra 2s. Aleksander Raal built the ones for the towers solely for David Fabrikant, owner of Ascend acoustics. You may want to pay them attention, they are everything I ever wanted in sound, uber clarity yet not harsh, lifelike sounding of anything high trebles.

My cat  doesnot go near the speaker , sonicly your music always sounds better without a grill , just put the grill on after your done
listening , some people take a bit of Ammonia on a piece of paper near the speaker ,they don’t like that.