Hey everyone.

I took this diaphragm out of one of my 288Bs.
I'd like opinions from the members here if they think it is a genuine Altec one or not.

It has the shorter voice coil necessary for the 288B and its top plate, but the material seems different to other Altec diaphragms I have.

What made me remove it in the first place was the DCR measurement of 2.9.

Thanks

Nat