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4 10's in 21" scoop???

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vwbidder View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote vwbidder Quote  Post ReplyReply Direct Link To This Post Topic: 4 10's in 21" scoop???
    Posted: 30 January 2007 at 11:50am
Can 4 10's like the Eminence HL-10a (I think) work in place of the expensive 21" PD?
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jethrocker View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jethrocker Quote  Post ReplyReply Direct Link To This Post Posted: 30 January 2007 at 7:41pm
No reason why it would be impossible to do, but the scoop would need to be designed specifically round the chosen drivers, rather than plonking them into an existing 21" design. I wonder if you will find 10" drivers with suitable enough spec to match a 21" in a scoop... If you could though you would have the potential for some serious power handling (say 4x500w 10"..2000w per cab) and the cab would look wicked for sure! Possible disavdvantage is that if one cone blew, the cab would not function properly, would probably weigh more than a single 21", and might not work out any cheaper..(they're going to need to be decent, tough 10"ers)
 
I'm not sure how you go about calculating for multiple drivers in a scoop, don't know if some of the T/S figures sum together, or if you just take the T/S of the individual driver but calculate with the combined driver area.. ??
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Static Age Quote  Post ReplyReply Direct Link To This Post Posted: 31 January 2007 at 5:02am
its an interesting concept alright.
surley it would require a re arangement of the baffles inside the scoop to accomodate the 10" drivers, ie: preusmably the baffle thats imediatley behind the driver would have to be moved forward to create the right chamber size for the smaller drivers?
like you say Jeth i wouldnt know how you go about calculating multiple drivers for one horn, perhaps that question is worth posting in the advanced section?
 
Dan.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jethrocker Quote  Post ReplyReply Direct Link To This Post Posted: 02 February 2007 at 9:07pm
Originally posted by Static Age Static Age wrote:

preusmably the baffle thats imediatley behind the driver would have to be moved forward to create the right chamber size for the smaller drivers?
 
Could leave space for an extra fold??
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biotec View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote biotec Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2007 at 9:27am


it looks like bassmaxx have tried something very similar with a folded horn in the z5000 cabinet



Edited by biotec - 03 February 2007 at 9:28am
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moray james View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote moray james Quote  Post ReplyReply Direct Link To This Post Posted: 06 February 2007 at 4:34am
would think that weight of those drivers and cost would be more than a top quality 21 inch driver?  No reason why you could not make it work though.  There are some big high power 21 inch drivers out there so why not look into them first? Drivers like the Assin have huge xmax and are cheap but not sure if you could make the values work in this kind of design.
 
The Assassin 10 is the first 10 inch subwoofer offered from Ascendant Audio. Sharing the same motor as the other Assassin subwoofers, it has plenty of motor strength to pound out the lows and fit into small enclosures.

It features excellent sensitivity, which means you can achieve more output with less power needed. Like the other Assassin subwoofers, it works in nearly any application with ease. It is also a natural for multi-driver car audio enclosures.

The sound  quality of the Assassin 10 is incredible. Combine that with its ability to play very loud and clean, and you begin to see that this driver is tough to beat. At its price, few drivers even come close.

Assassin 10 Specs
T/S Specs
 
Driver Specs
Znom 4 ohms BL 12.3 n/a   Cutout diam. 9 3/16
Re 3.5 ohms Sd 326 cm2   Outer diam. 10 1/4
Fs 32 Hz Mms 104 g   Mounting depth 5 3/4
Vas 37 L Xmax 15.5 mm   Weight 14 pounds
Qms 3.63 Spl 85.8 dB 1W/1M   Voice Coil diam. 2 inch aluminum
Qes .485 Rec. Power 200 W   Voice coil Single 4 ohm
Qts .428 Rms 350 W   Cone Paper pulp
Le 3 mH Price $70.00   Warrranty 3 years
moray james
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gramps Quote  Post ReplyReply Direct Link To This Post Posted: 06 February 2007 at 7:19am
Looks like the specs of a car sub?
To do a dull thing with style - now that's an art.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote IAIN RENDLE Quote  Post ReplyReply Direct Link To This Post Posted: 06 February 2007 at 9:33am
those specs arent too flattering....
-=vortex sound systems=-
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Tom Umney View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom Umney Quote  Post ReplyReply Direct Link To This Post Posted: 06 February 2007 at 5:24pm
Eminence HL-10 I decide on.
 
Has a Qts of 0.29, fs 44hz,  xmax 11.1mm, 2.5 inch vc, 300w rms, 4 ohm. Sens is 88db at 1w/1m though. But 4 in one box of them will make it, 97db at 1w/1m sens.38hz-125hz freq res.Xmech 22mm.BL 18.3 tm.
And wire them in series/parallel arrangement.
 
 
 
 
 
 
 
 
 
 
 
 
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357 Quote  Post ReplyReply Direct Link To This Post Posted: 21 February 2007 at 9:49am
Originally posted by Tom Umney Tom Umney wrote:

Eminence HL-10 I decide on.
 
Has a Qts of 0.29, fs 44hz,  xmax 11.1mm, 2.5 inch vc, 300w rms, 4 ohm. Sens is 88db at 1w/1m though. But 4 in one box of them will make it, 97db at 1w/1m sens.38hz-125hz freq res.Xmech 22mm.BL 18.3 tm.
And wire them in series/parallel arrangement.


Yes, but what is the Single/Combined Sd of 4x HL10's?

I'm sick of hearing cabs with multiple smaller units (even 2x15 reflex) that sound nice and deep up close, even some floor shaking, but don't move enough air between 60-100 to "kick" you in the chest.


"Who am I? I'm the guy who does his job.. You must be the other guy".
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