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-   -   SEAS 2way (http://www.diyaudio.com/forums/multi-way/104783-seas-2way.html)

tpsorin 6th July 2007 07:02 PM

SEAS 2way
 
I am planning to build a 2way enclosure using SEAS drivers.

The plan is to use CA18RLY + 27TFFC, ~2200Hz crossover.
Can this two drivers work together? ( I'd like 6db electrical crossover)

The room is ~4x5m (i hope it will be ~4.5x6m in 1-2 years).
This will be used mainly for music: Rock, Jazz, Classic.

What do you think about this combination?
Is the bass from CA18RLY enough for this type of music?

Regards,
Sorin

tinitus 6th July 2007 07:31 PM

You like to try 6db filter ..... better go for this one then

http://www.monacor-spain.net/modules...ticulo=SPH-176

owdi 6th July 2007 07:44 PM

I think 1st order @ 2khz is a bad idea, because you are too close to the fs of the tweeter.

Dan

Tenson 7th July 2007 01:10 AM

And you will probably get horrid lobbing. Go 2nd order electrical and you will be very happy.

gbyleveldt 7th July 2007 02:30 AM

I would rather use the 27TDFC if you want to go for such a low XO point

ermes 7th July 2007 07:21 AM

infact the 27TDFC is wonderfull for its price.

very intresting tw.

b.r.

tpsorin 7th July 2007 09:04 AM

Yes, 27TDFC looks good.

I don't know anything about Monacor. But Monacor store is ~200m from my home. :) I will make them a visit.

Another question about woofer: is there a big difference between 15cm and 18cm woofer in low frequency? The 15cm driver seems easier to cross in a 2way.

ermes 7th July 2007 10:11 AM

about 15 and 18 comparison you can simulate the loading with a simulation software and see the result.


sure that the 15cm has better change to crossingover with a tw,but also a 18cm is not so bad.
at the other side the 18 goes low better.

b.r.

nikonguy 7th July 2007 03:39 PM

Re: Seas 2way
 
Hi,

Thought you might be interested in a Seas 2way with the CA18RNX & 27TFFC. Bjorn Idland, a technician at Seas Norway posted the design a while back. Check this thread for 'bidland', about halfway down. The zip file attachment has a Word document with the crossover and the response.

http://www.diyaudio.com/forums/showt...935&highlight=

Best,

Steve

tpsorin 8th July 2007 04:22 PM

Any significant advantage can be gained by using a midrange? (2.5 or 3way)
I am thinking o MCA15RCY or MCA12RC

I would like to have a large sweet spot. What factors have influence of this? Baffle? Crossover ?

Thanks!


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