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Old 6th October 2008, 03:04 PM   #1
ScottC is offline ScottC  United States
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Default Sub for band use

Looking to assemble a couple of dual or 4 single subs for 5 pc Band.
Currently I use a dual QW218 peavey sub, 120hz and below, everything else goes to top cabs.
I have been told that 15's will have a tighter punch.
It was also recomended to me by EAW to use horn loaded 12" subs,BH760 per side and up to two LA400 per side.

Horn loaded means ?????

I am looking that chest thumping kick from kick drum and bass guitar. I'm undecided on what route to go. Loudspeakerbuilder.com is less than 1/2 hour from me.They can build the cabs cheaper than I can.
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Old 7th October 2008, 12:13 AM   #2
SamV is offline SamV  United Kingdom
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15's drop lower and are better for that deep smooth bass where as smaller 10s and 12s are punchier. Horn load subs are a type of extremely efficient sub enclosures, the trade off is their larger size compared to sealed, ported and bandpass designs.
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Old 7th October 2008, 11:15 AM   #3
djk is offline djk
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'Chest thumping' bass comes from horn loaded 12s for mids, not from the woofers.

You should also be using a 2" throat compression driver for the high end.

The QW218s should be fine for low end.
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Old 9th October 2008, 02:24 AM   #4
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Easy answer:

A BFM Titan 48, 24" wide loaded with an Eminence 3015LF. Should be around $300 each for parts.. labor is yours.
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Old 9th October 2008, 11:21 AM   #5
djk is offline djk
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Sorry, wrong answer.

Click the image to open in full size.

One conventional horn by itself has pathetic bass, especially if it is long (so it can go deep).

Now a tapped horn (which is not actually a horn in the region it works best in) does have some bass.

Here is a single inexpensive Eminence 15" driver eating a pair of Peavey 18s:

Click the image to open in full size.
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Old 9th October 2008, 11:29 AM   #6
djk is offline djk
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But the difference in deep bass is not what gives the sensation of 'kick' or 'slam', the midbass is.

I sent an e-mail to Loudspeakerbuilder.com about their double 12" horns, but they haven't responded yet.
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Old 9th October 2008, 11:43 AM   #7
AndrewT is offline AndrewT  Scotland
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find Tom Danley's Labhorn.

If you want all the background on how he designed it then look for his very extensive paper on the horn.

It goes very loud for little input power, but you need 12 cabinets if you fly them in space or 6 cabinets if they are floor loaded.

You can use just 3 cabinets if they are placed against the back wall and floor loaded.

Each cabinet has a pair of 12inch bass drivers and can use upto 2kW into 3ohms with a steep high pass filter to protect the drivers.
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Old 9th October 2008, 12:15 PM   #8
djk is offline djk
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A Lab 12 still won't have any 'slam' without horn loaded midbass, and, as a conventional bass horn you have to drag around a bunch of them before they work well.

A TH of about 10% greater bulk (or two small ones stacked) than a single Lab 12:

Click the image to open in full size.
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