Check out this Subwoofer Installation

[Cheeseboy]

Scoll Half way down

http://www.royaldevice.com/custom.htm#THE%20REAL%20TOTAL%20HORN

I'm tearing up the floor of the house now!

[chessman]

I love articles like this because when I show them to my wife my own plans do not seem so excessive anymore. :crazy::eyebrows:

[Kevin_Wadsworth]

That picture is an internet audio legend - it gets posted on some forum or antoher 1-2 times per year. I kinda wonder if it's ever really been built.

[woofersus]

The question in my mind has always been how does he make a room so expensive look so ugly...

Seriously though, it looks like he just used up the entire crawlspace for the horn loading of the subs. Without some careful calculations he would have a huge resonant peak. Also, if he used all those speakers at once he'd have massive problems. I don't know if they're supposed to be a selection or an entire system, but they're all on different planes front to back and there are multiple tweeters at different heights. Talk about phasing!

On top of that he's using old rusty springs (on top of stone on top of wood!) to decouple components, which doesn't make sense. There's a few components with their covers missing that are sitting on top of each other with wood scraps to separate them which looks totally ghetto. He's got acoustic guitars and drums in the room, which will resonate at low volumes and make all kinds of noise at higher volumes. (especially the snare) He says the subwoofer amp is 100 + 100 watts. At what load? He's driving 16 subs with a single 100 + 100 amp? He could theoretically use a combination of serial and parallel wiring to achieve something near either 4 or 8 ohms. (I figured out how to get 7 or 3.69, but I"m having trouble getting closer than that) Either way, they must be the most sensitive subs on the planet - or the amp doesn't have near the current to push those cones and it's not performing that well.

And just to rub it in, that Tascam TSR8 is crap (narrow tape) and the Portastudio 244 was hobbyist equipment at best.

[Cheeseboy]

You are so right. That is one butt ugly room.

If he was going to make it that ugly he should have considered making the walls and ceiling moveable to replicate different listening enviornments.

I thought he would have layed a solid sheet of concrete on the top of the sub unit to seal it.

The idea has merit. Build your concrete sub enclosure below the floor.

Great concept.

[Cheeseboy]

I love articles like this because when I show them to my wife my own plans do not seem so excessive anymore. :crazy::eyebrows:

I ran it past my wife last night. Her first question was if we could replace the current wood floor at the same time. Go figure

[chessman]

I ran it past my wife last night. Her first question was if we could replace the current wood floor at the same time. Go figure

Ah, the counter-spend gambit ... do not say no to your spending, just add lots of her own. My wife is an expert with this gambit. :shiftyeyes:

[Cheeseboy]

Ah, the counter-spend gambit ... do not say no to your spending, just add lots of her own. My wife is an expert with this gambit. :shiftyeyes:

As long as she does not have a line item veto then spend we will.

[spyboy]

Scoll Half way down

http://www.royaldevice.com/custom.htm#THE%20REAL%20TOTAL%20HORN

I'm tearing up the floor of the house now!

That thing is only rated down to 10 Hz.

The real deal is the Thigpen Rotary TRW-17:

http://www.rotarywoofer.com/howitworks.htm

110 db at 3 Hz.

Total cost with installation should run $22,000-$25,000 for the Thigpen. Two of them were (temporarily) installed in the Trinity Lutheran Church in New York City. The sound pressure levels produced by a pair of them was enough to make the doors of the church flex.

[Cheeseboy]

It's only 10 HZ as it is missing the NoREz.

I guess I could get to 3 HZ if I installed some attic fans.