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Im referring to the acoustic space that the loudspeaker is radiating into. The loudspeaker and boundary,causes an acoustic image that looks like a mirror image of the loudspeaker location. Also by placing your woofer in a corner,you will excite room modes maximally.If I was to do an HT...

Linkwitz transform for HT ? Doesnt sound like a good idea to me. Power and excursion requirements are already high for sub 20hz levels. Since you can do the large boxes,do them!Id do the suggested design by Dan. Ofcourse subs modeled flat in 2pi boom in 0.5pi! youl have +6db output!

Hi Rob Well,something to consider is the fact that the DPL is only 12" and the tumult 15",so most likely the tumult will require a larger box for a start. Also I wouldnt be tuning a DPL12 to 13hz,less info there,and youl be excursion limiting yourself,even further.Probably best near...

Look how far apart the centre channel speakers are from each other -talk about horizontal comb filter!

Looks are everything.People doing sighted a b tests always think the nice looking speakers sound better. The diffraction from a cylinder isnt too bad. (looking at my olsen cabinet diffraction page from High performance loudspeakers(martincolloms) But there will be problems with the...

With a low tuning,you wont require the drivers full RMS rating to reach excursion limit.Probably a hundred watts or two hundred,but youl want headroom so that your amplifier doesnt clip. Dont know tuning nor box volume so cant comment on specifics in this case.

go to the FRD page( i cant post links yet) Cheers

You say 'should' right after the knowledgable fellows tell you otherwise? dont you beleive Dan and GM? :confused:

lacking in xmax? 18mm not enough? Its more than a shiva/dpl12 and more linear i expect How about 29mm xmax? -But can u still afford the driver with that much linear excursion! Xmax is just SPL potential! Its meant to be a cheaper alternative as far as i know

Although ideally having the driver magnet structure in the horn 'should' cause some cooling effect,youd have to ask a thermodynamics fluid specialist! I wouldnt be risking driver problems by using so much power! People have destroyed drivers by LF over excursion,and thermally as far as i...

Hyun-just to be sure you may want to download SUBSIM ,just to be sure,as WINISD pro,although good,is still beta stage. Although i have designed and built a subwoofer with winisd pro-its comforting when 2 programs match atleast the PR specifications should be on the stryke site I hope he...

My thoughts are- with huge units 18" and bigger-why not design them to be IB installed only,as the boxes required are non mobile in weight. -Big Vas ,Moderate Qts, Low Fs for bottom octave and hopefully high ish sensitivity! Cheers!:emoji_thumbsup:

It will sound good in theory-it has a flux shorting ring,and has measured at mfk-projects to be equal to,or less distortion than the Peerless XLS12" !

They do have tricky mitre joins! You can actually remove those hard mitre joins by using an expansion in 1 dimension only if you really want. Note that theres the HL10 which is a single ten,used 1 per horn of smaller size,3'x3' x 2' i think. -you have to measure at a distance (~4m) and...

Hi all first of all,the Tempest horn is not 97db efficient. 1- its measured at 2metres distance instead of 1metre 2- its one box in 2pi space-youl find the labhorn response much like this in 2pi space. So really its not as bad as what it looks 3-The only concern for the tempest is its...