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.…as everything was discussed here before.

chaos wrote:

…when i tried your recommendation with s2 and 3uF cap my "basshorn" refused to roll of;-)

This is normal, I have written about it many times. Those large bass drivers have a lot of inductance in Voice Coil, the inductance that warys with excursion BTW and while the driver operates the generated inductance in the driver “talks” with the low-pass inductance in filters, canceling it out. At the time I used passive low-pass filter on my upperbass horn I was utilizing inductor of 2 or 3 times more than it was necessary. Actually a passive low-pass crossover for bass driver might not be circulated but should be made by measuring the actual driver response behind the crossover. That is nomal.

chaos wrote:

you said, you heard 515´s in basshorns, nothing was working, what was the reason in your eyes(ears)? dont want to repeat someone else mistakes...

I think it is too large driver. I would like to see a driver with the same specks but 8-10”.

chaos wrote:

you implanted the idea of a 300-1000 horn in my head(was not that difficult, want to get out the max within my options), so maybe you can answer some questions: should it sit right over the midbass? midrange inside on earlevel? 2405?mr between midbass and lower mr? s2..of course jezzie is right, but i simply cant affort to buy it at the prices they have now.was expensive for me 15years ago, but still a bargain.

It is hard to say over the distance – you need to architect your own horn positioning. I personally very much advocate what Macondo does layout-wise. Look across the site. There is a lot of information about it.

chaos wrote:

what driver would be ok for lower mr? any new production ones?  of course i would like to go all out, but its simpy not possible in this case;-((((

It depends what architect you would chose for yourself. We know that the lower MF driver much be time-align and conspiring the length of the horn you would agree to use you will instantly have the through diameter that you need. Then you might look for drivers.

chaos wrote:

s2dia...does it make sense to look for the white ones? where?

I do not know. I have just one clear cone and because of it I never look to use them and never experimented with them. Then might be fine cone and you would not need anything else for your S2. Somewhere with the Vitavox thread I told where the “Vitavox Mike” lives nowadays – he might help with cones if you need them.  The however became ridiculously expensive nowadays. An economic and making sense alternative for you would be to get S3 drivers. They are not good HF ceramic version of S2 but they might be OK for lover MF. Also they have the same diaphragms as S2 has, so buying the S3 you would essentially buy a set of other diaphragms for your S2.

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