Specs/measurments of RD Alpha Max motor?

[oxsign 5,000+ posts]

I'm looking to to get some recones for my RD motors and I need to find out what the gap & top plate measurements are. Does anyone have or know these off hand? I need mesurements for the pole od and top plate id please.

Click to read more...

 

[will3 10+ year member]

I think this is the 856 motor from SJA , but I have no clue what the OEM specs are on it , I'm pretty sure it will accept 3" 8 layer coils , all else fails contact Atomic loudspeakers, thay will sell you the recone kit (they are the build house for RD).

 

[oxsign 5,000+ posts]

Thx for the info. I'm just waiting on RD to get back to me with an answer. Does anyone know for sure if they use 4 or 8 layer coils?

 

[oxsign 5,000+ posts]

Still looking for some specific measurements please.