Altec Lansing

[fred76]

Hi Vuki,

Very niiice... I have 414's that would be used in a GM designed enclosure.. *hopefully start the build late summer*

[Steve Mac]

I just read all 21 pages...whew. What a fantastic thread! Thanks to all for posting.

[Cal Weldon]

Pin-up girls:

http://www.stereosound.co.jp/spi/altec/1011.jpg

[Variac]

Vuki,

Do you have some links to info on the LaCleach horn (That I presume that you made)? They seem really interesting...

[vuki]

Hi,

here is a theory and excel calculator http://ndaviden.club.fr/pavillon/lecleah.htm
I made a cardboard profiles according to lecleach calculator, bent and glued them together, and then reinforced cardboard horns with fiberglass and resine. Mounting plate was made of plywood and glued with resine and fiberglass. Compared to makeing round tractrix horns this was relatively easy job.
There are some nice pictures of lecleach horns here: http://www.musique-concrete.com/

[dlh1948]

Hi,

Not to change the subject, but I would like to have someone comment on the following idea; placing two 515b speakers(sans cabinets) in my living room floor into an empty basement. Sort of like a REALLY BIG enclosure.
Thanks

[mpmarino]

Originally posted by dlh1948
Hi,

Not to change the subject, but I would like to have someone comment on the following idea; placing two 515b speakers(sans cabinets) in my living room floor into an empty basement. Sort of like a REALLY BIG enclosure.
Thanks

I will gladly fund a pair of 15" Dayton IB drivers in exchange for your 515Bs! Please don't do that to a set of 515B -

[GM]

Originally posted by dlh1948
.........placing two 515b speakers(sans cabinets) in my living room floor into an empty basement.

Hmm, I notice I haven't received a response to my 6.27.07 email to your PM, so lacking any room, etc., details and how you plan to implement it the answer is a resounding don't do it! For sure, don't mount them face up or down since their mass/compliance ratio (Vas) is so high they will be very non-linear in operation, enough to potentially easily damage the VCs, so a manifold is mandatory IMO, which has the side benefit of ~eliminating any rocking vibration and will average out any driver suspension non-linearities if mounted/wired in bi-pole push-pull.

[Cal Weldon]

Cheese

[Cal Weldon]

Extra cheese