New 12" Full-Range: Fane 12-250TC

[Freedom666]

the bigger brother of the Fane got a cone treatment / tweak

https://www.diyaudio.com/community/...loudspeaker-sandwich-cone.402917/post-7467924

 

[Oceanw]

As my own waveguide projects have been on hold for a while, I've been helping a friend with his 12-250TC project. He built approx 140L enclosure for it, which is a transmission line. I can't yet comment on how well it turned out, as we haven't had the chance to listen to it in his living room, only in a less-than-ideal workshop space. The most interesting observation so far has been how much damping the pressed steel frame of this speaker affects its performance.

We used sound-deadening matt for car-audio called STP (similar to Dynamat etc butyl rubber matts)

First pic is on-axis and Hor 15 angles of undamped basket:

Pic 2: Damped basket Hor 0 and 15

Pic 3: Undamped and damped comparison, On-axis / Hor 0

Pic 4: Distortion undamped, Hor 0

Pic 5: Distortion damped, Hor 0

Pic 6: Damped in different angles

 

[GM]

Yes, 'de riguer' for wide range metal frames.

 

[norman bates]

wow, all that 1-4khz boosted range (off axis also) was because of the basket ????????????????????

that's like a 5db difference !!!!!!!!!!!!

For me, equalized, aimed off axis, it was great for the money.