[jstorerj]

Hi - This might be a Mike questions or perhaps someone else has come across this...

I wonder if there's any danger of the ferro fluid in my aci sapphires freezing and damaging the speaker? I may use them in a vacation home and we close it down between visits in the winter. The temp in the house is likely to get down below freezing.

I tried a couple of searches on the topic and came up empty.

Thanks - Jim

[budyog]

I have a question along the same line. Any thoughts on Armoral or another type of rubber protectant to keep the rubber surrounds in top condition or is that not necessary?

[Mike Dzurko]

Hi - This might be a Mike questions or perhaps someone else has come across this...

I wonder if there's any danger of the ferro fluid in my aci sapphires freezing and damaging the speaker? I may use them in a vacation home and we close it down between visits in the winter. The temp in the house is likely to get down below freezing.

I tried a couple of searches on the topic and came up empty.

Thanks - Jim

Jim:

No worries. Think of the millions of car audio systems that use ferrofluid in their speakers and are subjected to sub freezing temps on a regular basis . . .  its darn cold here in Wisconsin today! For all you ever want to know about ferrofluid and much more:

http://www.ferrotec.com/usa/audio_ferrofluids.htm

[Mike Dzurko]

I have a question along the same line. Any thoughts on Armoral or another type of rubber protectant to keep the rubber surrounds in top condition or is that not necessary?

Don't do it! Seriously, natural rubber and synthetic rubber surrounds like santoprene are designed to last for MANY years without the use of any coatings, etc. I wouldn't recommend using anything on them at all. If they were to get very dusty etc, you might want to wipe with a damp cloth.