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Super Bass Horn V.02 by Startec (Quad Acoustics-F)

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Post Options Post Options   Thanks (0) Thanks(0)   Quote csg Quote  Post ReplyReply Direct Link To This Post Posted: 07 December 2021 at 12:50pm
This is simply incorrect.

Stack 1

Twin 18” reflex subs
8 cabs
4.8M x1.2M radiating area
150dB SPL at 1M

Stack 2
Single 18” front loaded horns
8 cabs
4.8M x 1.2M radiating area
150dB SPL at 1M

Both stacks will offer 132dB at 8M and 120dB at 32M

How do horns out “throw “ the reflex cabs exactly?
“The fact is this is about identifying what we do best and finding more ways of doing less of it better”
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sushi Quote  Post ReplyReply Direct Link To This Post Posted: 07 December 2021 at 12:10pm
Originally posted by toastyghost toastyghost wrote:

Originally posted by sushi sushi wrote:


I think 4 reflex cabs loaded with the 18LW2600 (well processed and driven by proper amps) would probably give enough deep and loud sub bass to shake belly buttons 10mt away outdoor, with high spl focused on the dancefloor, without being heard miles away (unlike most folded horns)


Oh here we go. Good advice followed by oft-repeated bullshit. Throw does not exist.


Did i say "throw"?
We were not talking about artillery, were we?
What i was talking about is the significant combination of high spl and strong directivity for which horns are generally capable of delivering percievably louder sound at a distance, rather than reflex cabs.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Toss Out Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2021 at 9:53pm
i think i ll go with l18p300 and wsx...i saw specs comparing 18lw2600 and rcf and this is better..i was wrong with all
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Post Options Post Options   Thanks (0) Thanks(0)   Quote re-production Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2021 at 9:41pm
Did you manage to get any measurements of the siniai paraflex? 
I'd be pretty interested in seeing the group delay specifically.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Toss Out Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2021 at 10:00am
ok thank you guys sorry again for off topic..i will doc..
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 29 November 2021 at 11:29pm
Originally posted by sushi sushi wrote:


I think 4 reflex cabs loaded with the 18LW2600 (well processed and driven by proper amps) would probably give enough deep and loud sub bass to shake belly buttons 10mt away outdoor, with high spl focused on the dancefloor, without being heard miles away (unlike most folded horns)


Oh here we go. Good advice followed by oft-repeated bullshit. Throw does not exist.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sushi Quote  Post ReplyReply Direct Link To This Post Posted: 29 November 2021 at 11:28pm
You'd better load the 18LW2600 in a reflex cab, since it has been designed for that job. Maybe you can try and see if it works in scoops as well, but it won't sound like a front loaded horn.
If you really need flh for sub duty, then read the threads about 1850, Martin wsx, invader, CV L36, punisher, lab, and so on.. do some research and see what's best for your purposes, just keep in mind there's no "best bass horn" in absolute terms: it's up to what music you'll play, where, the level of spl you need, at what frequency.. and how much money you can spend!
I think 4 reflex cabs loaded with the 18LW2600 (well processed and driven by proper amps) would probably give enough deep and loud sub bass to shake belly buttons 10mt away outdoor, with high spl focused on the dancefloor, without being heard miles away (unlike most folded horns), and the cabs would be lighter, cheaper and easier to build. On the other side, with folded horns like 1850 or L36 you'll be quite loud and punchy but you'll need more than 4 cabs stacked together to get deep sub frequencies with decent spl.

Edited by sushi - 29 November 2021 at 11:32pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Toss Out Quote  Post ReplyReply Direct Link To This Post Posted: 29 November 2021 at 1:51pm
sorry for off topic...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Toss Out Quote  Post ReplyReply Direct Link To This Post Posted: 29 November 2021 at 1:48pm
i understand really good...u make change my idea @sushi in your opinion wich could be the best horn cabinet for 18lw2600 eighteen sound woofer? this is the woofer... https://www.eighteensound.it/en/products/lf-driver/18-0/8/18lw2600

i look around the web to have an idea of what is better for my ears not my eyes and i find 1850 or wsx..id like to have punchy response from a cabinet and low freq really loud and deep.. i hope u can help me
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sushi Quote  Post ReplyReply Direct Link To This Post Posted: 29 November 2021 at 1:13pm
Imho sbh is absolutely NOT the best bass horn design, on the contrary it can be one of the worst bass horns one can choose to build. It's massive, heavy as f***, tricky and expensive to build.. and the results doesn't pay back: it has a really uneven response, a big dip at 50hz (where most dance music basslines hit) that gets a bit better only with more than 6/8 cabs per stack.. it seems the designer tried to reach lower frequencies, but sacrifying the overall performance. No surprise they're mostly used in freepartyies, where sometimes sound quality isn't the primary goal, and even there most skilled crews get rid of them after some time. I wouldn't even compare it with the CV L36, which is an old commercial product but definitely performs better in its range (Cerwin Vega is STILL working on that old design for their cabs).
To be brutally honest, i understand you like the look of them, but speakers are made for hears, not for eyes.. well, even the back plays a big part so believe who said you can get much more from that air volume, and spare your time, money and backpain for a smarter design.

Edited by sushi - 29 November 2021 at 1:23pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Toss Out Quote  Post ReplyReply Direct Link To This Post Posted: 29 November 2021 at 10:16am
i trust you guys its bc that im here! so u dont think sbh could be the best?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 29 November 2021 at 9:48am
Originally posted by Toss Out Toss Out wrote:

guys are you kidding mee?? anyway i saw some measures of sbh on the web...it seems good about frequencies..i dont know why @citizensc has this cutoff of sbh...ideas are accepted for the best sub frequencies horn...

sbh and cw l36 rulezz
..change my mind!!


How many have you listened to? Or measured? It’s your money, wood and time, but myself and others would be looking elsewhere.

The Skram has very detailed plans here:
https://data-bass.ipbhost.com/topic/742-riccis-skram-subwoofer-files/

And it's quite forgiving on driver choice. Not technically a horn, but very optimised. Hornresp 'max SPL' plots are not trustworthy in general - it's a linear acoustics model, and has no idea about distortion thresholds or cone load - but here's an example of the response shape of various drivers at their Xmax limit:


Hornresp inputs are:

But make sure to use the complex semi inductance model. Click Le so it goes green, and put the data in, Google it for a guide on finding it from TS parameters.
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