Any videos of SS15, Xoc1 TH18, or THAM 15? - Page 3 - diyAudio
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Old 24th January 2013, 08:37 PM   #21
Djim is offline Djim  Netherlands
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Hi Maxo,

I understand your argument and for that reason you should be aware of the limitations of the SS15. It is designed for relative weak drivers with a low motor force. It does that job wonderful but not if you want high output. The max calculated output of 127 dB will not be reached.

Btw what nobody seems to mention is that the directivity advantage of a TH can be obtained with delayed stacks of basreflex or bandpass systems, if wanted.
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Old 24th January 2013, 08:47 PM   #22
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Quote:
Originally Posted by turbodawg View Post
Check out these plans for the "cubo sub":

Cubo Sub
(scroll down page to see plans)

Only a hair bigger than the ss15, at 30x30x24", and probably about the same weight. Better low end extension by virtue of it being a bandpass / tapped horn hybrid design, having a larger chamber in front of the driver. Very interesting, wonder how it sim's?
See here.....

cubo sub - Speakerplans.com Forums - Page 1
Best sub

Last edited by turbodawg; 24th January 2013 at 08:49 PM.
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Old 24th January 2013, 08:49 PM   #23
maxo is offline maxo  United States
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Quote:
Originally Posted by Djim View Post
Hi Maxo,

I understand your argument and for that reason you should be aware of the limitations of the SS15. It is designed for relative weak drivers with a low motor force. It does that job wonderful but not if you want high output. The max calculated output of 127 dB will not be reached.

Btw what nobody seems to mention is that the directivity advantage of a TH can be obtained with delayed stacks of basreflex or bandpass systems, if wanted.
what an interesting concept
can you elaborate more
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Old 24th January 2013, 08:51 PM   #24
maxo is offline maxo  United States
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Quote:
Originally Posted by turbodawg View Post
so you think is better to build cubos subs than the ss15's
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Old 24th January 2013, 09:06 PM   #25
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Quote:
Originally Posted by maxo View Post
so you think is better to build cubos subs than the ss15's
No, I think you should look at them and see if they meet your needs better as far as size, extension and output goes.
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Old 24th January 2013, 09:09 PM   #26
maxo is offline maxo  United States
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10-4 sir
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Old 24th January 2013, 10:00 PM   #27
Djim is offline Djim  Netherlands
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Well, most TH’s are not real horns. The expansion rate of the pipe is usually not large enough that it will function like a true horn (besides the hug scoop and the Cyclone for instance). Nevertheless, all TH’s do have a true directivity pattern that is generated by the distance between the two sound sources within the pipe (driver and tap).

A similar distance can be achieved with several omni-directional subs (like reflex systems for instance) on a row in a so called delayed stack. Using delayed stacks is how they often do it at large concerts. That way they can change the directivity pattern when circumstances ask for it while keeping the advantages of relative small relfex cabs with maximum bandwidth.
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Old 25th January 2013, 03:19 PM   #28
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Quote:
Originally Posted by maxo View Post
10-4 sir
More discussion of the "cubo sub" with a peavey low rider:

Scaling up the SS15 for an 18" driver and other compact 18" designs
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Old 25th January 2013, 03:37 PM   #29
DrDyna is offline DrDyna  United States
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I've got a video up, but as it's been said, don't expect decent audio quality, it's more just to hear how the walls are reacting to it.

It's not one of the TH's you mentioned, but they're decent nonetheless. It's in my signature.
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Old 3rd May 2014, 01:24 AM   #30
r23d is offline r23d  Australia
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We have 4 x SS15's with some clamp-on extensions which we regularly take out to gigs with up to about 400 people. Sorry no video, but I've attached a pic to show a bit of crowd love...

The extensions do more for the directivity giving another 3dB or so in a good beam in front.

We use RCF l15p200ak drivers in them and love the portability and efficiency, but are planning to make a set of 4 x th18's (xoc's design) for gigs where we want the strength in 35-45 hz where the SS15's drop away. 99% of people do not notice anythinig lacking here (the SS15's are plenty loud and distortion free) but we want to give the bigger boxes a go.

To find out more about our rig which uses 7 driver unity horn tops and runs of a solar charged 24v battery bank, check us out on FB as D.I.Y. Hifi...

Happy building!

Rich
diyhifi.biz | DiY HiFi Solar Powered Sound System
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File Type: jpg DIY Hifi 21-12-12 Merri Creek Melbourne.jpg (128.3 KB, 101 views)
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