Cascade

[rj2077]

i too, have contemplated on using an ns1000 tweeter on my L-250's to see what that sounded like? that is one great tweeter.

regards

[pos]

Sorry to revive this old thread

The LE109 really is a one-off. Greg thought he used a "half-weight" 112H/2108H type cone and then made up the difference with aquaplas.

"half-weight" 112H, does that mean that a mass ring was remove in the orinal kit? (I did not know that driver had a mass ring).
Is the final MMS identical?

[Robh3606]

Hello Pos

The last round of cone kits were smooth, no ribs. If you measure the FS your are about 20Hz high. You could always take a pair of these for starters and add mass until you get an FS match to the original cone. Or of course just try them as is, they look just like miniature 2122's. Your not going to miss the LF response anyway in a 4 way.

Rob

[macaroonie]

Getting into 2250j territory here perhaps / Different motor and impedence hey we're amongst friends.
Didn't that guy in LA have these a lot for cheap out of vertecs ?

[pos]

The LE109 seems to have the original ribbed cone: http://test.audioheritage.org/Images.../XPL-250_e.jpg

I have a pair or 112H with original cones that will need new surrounds and spiders. If there is a mass ring in there it will get removed for sure, as I will run it active anyway, and adding mass for the mass (ie without any stiffness or damping benefit like aquaplas would bring) has no interest in this situation and would only force those "tiny" underhung VC to dissipate more heat...

But frankly I doubt there is a mass ring in there, so that "half weight" 112H cone in the LE109 has me curious...

[4313B]

No mass rings were used in the 112A/H or 2108A/H.

[pos]

Thanks

[ivica]

The LE109 seems to have the original ribbed cone: http://test.audioheritage.org/Images.../XPL-250_e.jpg

I have a pair or 112H with original cones that will need new surrounds and spiders. If there is a mass ring in there it will get removed for sure, as I will run it active anyway, and adding mass for the mass (ie without any stiffness or damping benefit like aquaplas would bring) has no interest in this situation and would only force those "tiny" underhung VC to dissipate more heat...

But frankly I doubt there is a mass ring in there, so that "half weight" 112H cone in the LE109 has me curious...

Just as an info

[martin_wu99]

Just as an info

Very professional

[4313B]

Very professional

Thanks!

Yeah, I posted alot of that kind of thing years ago. I think alot of it was lost between the various versions of the forum.

[BMWCCA]

Thanks!

Yeah, I posted alot of that kind of thing years ago. I think alot of it was lost between the various versions of the forum.

Might there be a way to combine them all within the Technical Reference forum? Or are they hidden in there already??

[ivica]

Might there be a way to combine them all within the Technical Reference forum? Or are they hidden in there already??

That is VERY GOOD suggestion.

Ivica