View Full Version : Bass Horn subwoofer

10-20-2005, 02:40 PM
Wayne from pi speakers comes through.

12pi basshorn subwoofer


If you want to read about the 12pi design diary;

12pi basshorn development history

12pi observations and comparisons with other designs

12pi basshorn - just about ready for prime time

12pi basshorn - Coming together - Part 1

I asked him about the FR for in home
use, he said;

"The response shown is for a single 12Pi horn used outdoors. If used indoors or in groups, the response is made more flat. That's just the nature of basshorns.

See http://www.AudioRoundTable.com/ProSpeakers/messages/260.html

The response curve at the bottom of the page is what you would expect to see if used indoors or in a group.


"But it's a very large horn, so I don't think it is suitable for use in a home. I wouldn't want that thing in my house. It's for large concerts and stuff like that. "

I'd use it in home :)

10-20-2005, 02:43 PM
thats loud

xxx.x dB
10-20-2005, 04:57 PM
I'll say :eek:

10-20-2005, 05:04 PM
I like that woofer cooling device, pretty neat.


10-20-2005, 05:05 PM
but where are the plans to build your own, and what kind of speaker was he using in this design?

10-20-2005, 05:17 PM
Wayne said;

The 12pi basshorn subwoofer is 45" x 45" x 28", which fits nicely in semi trucks. Trucks are 90" wide, so truck packs are usually 45x45x22.5 or 45x45x30. The 12pi basshorn uses a pair of LAB12's in push-pull which reduces harmonic distortion. It also has a heat exchanger which increases power handling over 225%.


Dual 12" Eminence LAB12 woofers with heatsink. :cool:
I thought they were building a customer woofer for this project? Need to
check that.

That is a big box actually :p:

You can stack 3 laying flat to make occupying 45" wide x 7 foot tall, then do
two columns to make it 90" x 7 foot tall. Six 12pi basshorns in the room against
the wall. 12 12" woofers, $145 each, $1740 for woofers.

[or stack 8 and cover the whole wall -- hehehe)

.. but if you were going to do this, you might as well make the whole room
a custom made bass horn that is part of room structure :D

10-20-2005, 05:19 PM
but where are the plans to build your own, and what kind of speaker was he using in this design?

He's going to sent me the plans. You can ask him too, his forum here;

Says, he's using the Eminence Lab12 woofer, two 12" per box.

But, I thought he was having a custom woofer made for this project,
a modded Lab12 with magnum features. I'm too lazy to find out..