Correct ferrofluid for compression drivers?

[Dave Zan]

Someone posted that they knew what the official JBL specification ferrofluid was because D. Button had provided the information.
So what is it? The search function for posts seems fairly useless.

Best wishes
David

[pos]

If you are refering to the small 3"/1.5" drivers, here is the info:
http://www.audioheritage.org/vbullet...l=1#post147356

Both compression drivers have 100 ul of APGS38N ferrofluid in the gap.

[Dave Zan]

Thanks.
By the way, the 2453 centre channel has arrived. And partly based on your comments I have decided to use the 2451 as sides. I would have used 2447s that I had stored for this but they will not fit unless I put holes in the walls.
Now to build some horns, listen and measure.

Best wishes
David