[zobsky]

I have an old pair of vintage soundcraftsmen 12" co-axials lying around . I think these might work with a simple OB (see T/S measurements I took some while ago).

These drivers have a flange on the rear originally used to mate to the magnet cover. I figure this would work perfectly for a magnet mount (see pic) arrangement.

Question: How does the front of the driver mate to the baffle? In other words does the driver frame touch it, is it fastened via screws, do I use some gasketting foam to decouple them ... ?
 

Code: [Select]

Thiele-Small parameters: Soundcraftsmen 2640TX

Fs  = 34.56 Hz
Re  = 4.50 ohms[dc]
Le  = 2403.53 uH
L2  = 871.95 uH
R2  = 14.01 ohms
Qt  = 0.55
Qes = 0.60
Qms = 7.29
Mms = 30.04 grams
Rms = 0.894641 kg/s
Cms = 0.000706 m/N
Vas = 238.99 liters
Sd= 490.87 cm^2
Bl  = 7.021935 Tm
ETA = 1.59 %
Lp(2.83V/1m) = 96.63 dB

Added Mass Method:
Added mass = 10.00 grams
Diameter= 25.00 cm


[mcgsxr]

I believe folks are leaving a slight air gap, to ensure total distance from the front baffle, in the case of woofers.

For mids/highs or wide range drivers, I think the gasket is the ticket.

have fun!

[scorpion]

Just have a look at Linkwitz' Orion: http://www.linkwitzlab.com/orion-rev1.htm and his magnet mount.

/Erling

[zobsky]

Just have a look at Linkwitz' Orion: http://www.linkwitzlab.com/orion-rev1.htm and his magnet mount.

/Erling

Thanks, both of you. That answered my question . Unlike Linkwitz, I don't think I'm going to be gluing my drivers to the mounts.