High-end 3 way dáppolito with aluminiumcone

[Helmuth]

sph250ctc

Kevlar?...looks more like carbon to me

Your right Tinitus sorry for my poor English.

[tinitus]

Kevlar is medium light and somewhat "soft" and flexible with the highest streching strength

Carbon is super light and hard with superiour stiffness

If epoxy is used as resin hardening with moderate heat is possible

To my limited knowledge

[Helmuth]

When I am building I can look for hours to it.



These quality loudspeaker poles I like no bling bling no-nonsense.

[Helmuth]

Hello,

I've got some problems here, I order two monacor subs by bmm-elektronics.

After ordering I pay direct with Ideal. The order was send 2.5week later.

Direct was clear one sub was defective the second seemed OK but after testing it in the box this week it has the same problems as the first one. Manufacturing fault or transport damage on the outside they look ok.

I will keep you updated with the Guaranty completion of BMM. Till now I send one back and send after that three emails without reaction

Till then the project stops.

[Nanook]

if they persist, perhaps a different driver?

Monacor drivers are reputably excellent , considering their price. Not sure what else is available in Europe that may be similar (brands available here vs. there are different....).

In what way are they defective? if just dustcap glue. you can peel the dustcaps off (usually) and replace or re-glue them.

What is the calculated volume for the sub enclosure?

stew

[BERENO]

Originally posted by Nanook
Monacor drivers are reputably excellent , considering their price...
In what way are they defective? if just dustcap glue. you can peel the dustcaps off (usually) and replace or re-glue them.

Is it common for these drivers to be found defective? Or did he just have some really bad luck?

Didnt he say it is sitting off-center and rubs the pole piece?

[Nanook]

and yes the voice coils are reportedly rubbing...

probably just a poorly glued driver surround pulling them off centre, but if Monacor offers a warranty, well, use it of course.


stew

[Helmuth]

The nett enclosure volume is 68 liter.

Listing to to sub it actually did have response down to 26Hz and keeps on working down to 18Hz.

So I am very content with the sub it is really a impressive performing chassis.

I hope it only a quality problem off the manufacturer. And the that the shop helps to solve this problem quick.

[meanman1964]

Hi Helmuth,

Nice looking speakers but I've one question.The foam you're using is that coming from a store called Gamma?If yes don't use that foam it doesn't work at all.A friend and I did measure that together with real Pritex.

[Helmuth]

Nice looking speakers but I've one question.The foam you're using is that coming from a store called Gamma?If yes don't use that foam it doesn't work at all.

Hi meanman,

Yes it comes from the gamma and I did use it before. And can hear it damped the reflexions.

So can you explain what you did measure.

Witch effect did you want to have of it.