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Old 26th September 2012, 01:49 PM   #51
tinitus is offline tinitus  Europe
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in UK ? why not Precision Devices

PD188 if you want highest possible SPL
or PD186 if you want lower bass
10" is a bit big for a midrange, but a Fane 10-300 might be ok
(12-300 appears to be surpricingly very well behaved)
and cheapest FaitalPro(new model) for tweeter

all top quality on a fairly low budget
but as said, you will have to go fully active
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Old 26th September 2012, 01:52 PM   #52
Pano is offline Pano  United States
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Thanks for the parameters! That helps. 12 ft^3 is big and gives you lots of room to work.
Since you need to be near the wall, that leaves out Open Baffle.

Lot's of good designs and approaches to pick from. Given that size, I might go with a full size Onken (15") or the Petit Onken (12"). Just one of many good designs to choose from.
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Old 26th September 2012, 01:55 PM   #53
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Originally Posted by LafeEric View Post
If you can settle for an f3 of 35 Hz or so the JBL 2226H is a driver that's hard to beat - though also a bit expensive....
Quote:
Originally Posted by JRKO View Post
Maximum I could go is 850mm wide x 500mm deep x 1400mm tall - These are max individual dims I CANT USE ALL MAXIMUMS TOGETHER (strangely that works out very near a GR box )

We have a nice unit that is 600mm wide, 480mm deep and 1200mm tall (roughly 12cuft). It seems rather pleasing in its shape although enlarging the shape in width and/or height would still be suitable

This design needs to be close to wall in back and/or side - corner placement could be interesting
I went thru this exercise a while back. The JBL 2226 is excellent but doesn't really cover the bottom octave. Ended up with a JBL 18" in a vented box just the size you mentioned - 610mm wide 1220mm tall and sloped front that fits nicely in the corners. The JBL 2226 is in a sealed sub-compartment.
Very happy with the final solution. Can post details if you are interested.

Best wishes
David.
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Old 26th September 2012, 02:06 PM   #54
DeonC is offline DeonC  South Africa
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Quote:
Originally Posted by tinitus View Post
in UK ? why not Precision Devices

PD188 if you want highest possible SPL
or PD186 if you want lower bass
Especially if you're looking for a single-driver bass solution. PD makes (or used to make, not sure) two real beauts. The PD2450 was/is a 24'' magnificent monster. That will be an interesting bass solution. The other driver is one that AFAIK they still make, and that is the SD21. This is a 21'' beauty with a magnificent (in looks and function) cast basket. Both of these will give you excellent bass, and go high enough to connect with a good mid-bass/mid. Go look them up (I'd suggest looking at the SD21 first).

Enjoy,
Deon
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Old 26th September 2012, 02:09 PM   #55
tinitus is offline tinitus  Europe
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and very expencive
you can get both woofers of the ones I suggested for less than one of those biggies
actually, i think two 18" will cost about half of just one of them
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Old 26th September 2012, 02:16 PM   #56
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Originally Posted by JRKO View Post
The sheer impact & wallop of a 15incher in the bass and a 10incher in the mids seems a recipe for 'moving' music even at low volume
It's also only a 'medium' when we want a 'Really Big'.
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Old 26th September 2012, 02:45 PM   #57
DeonC is offline DeonC  South Africa
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Originally Posted by tinitus View Post
and very expencive
you can get both woofers of the ones I suggested for less than one of those biggies
actually, i think two 18" will cost about half of just one of them
Agreed, but it will be a beautiful solution.

OTOH, I still stand by my idea of using a full-range as a mid-bass. This really takes a lot of headache out of the upper XO design IMHO. If not DC Gold, how about a pair of Audio Nirvana 15'' cast frame. That will a very interesting speaker. Either a single 21'' or dual 18'' bass, 15'' fullrange as midbass, and a good tweeter on top. The fullrange opens up the choice of tweeter quite a lot. I would still go with the LCY K100. Just my 0.02c.

Enjoy,
Deon
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Old 26th September 2012, 02:59 PM   #58
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Full range I've done - or rather am doing. Still playing with the Emken, some of you have seen the thread.

This is design is a dream, that if in concept, it works well and comes to a reasonable number budget wise can be snuck past my wife well maybe not snuck......If I clonk her on the head I could get them in place and tell her they've been there for ages.....

18's? How controllable are 18's? the PD188 looks very serious! Would it dance nicely with 8w of class A power as well as several hundred class d? Is there any great advantage of the 18 over the 15?

Pano, Ive searched for the Onken but cant find dims for the 15inch version. Would the Onken give the bass immediacy & control I crave even at low levels?
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Last edited by JRKO; 26th September 2012 at 03:01 PM.
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Old 26th September 2012, 03:10 PM   #59
Pano is offline Pano  United States
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I'll dig up the Onken specs when I get home, if you don't find them first. Search for 360 L Onken. I like the big Onken with the Altec 416 very much. It's very tight bass, never boomy. It can tickle you like a feather, or smack you in the face. Yes, it does very well at low levels - that's one of its strong points.

The Petit Onken doesn't dive up much to its bigger brother for a much more reasonable box size.
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Old 26th September 2012, 03:26 PM   #60
tinitus is offline tinitus  Europe
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PD188 looks very serious! Would it dance nicely with 8w of class A
ehh...no, too heavy
then you need one of the lighter coned semi pros
though my advice was to stay away from those, they might be the ones for small amps
usually smaller amps are more 'polite', and not for playing that loud either, so it might still work ok
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