Twin Towers BUILD LOG

[kryptonitewhite 1]

crossover 80hz vs 250hz

fun

10Hz -3.6dB FS

THD: 7.70% THD+N: 7.75%

2nd: 5.74% 3rd: 5.11%

4th: .339% 5th:.363

6th: .228 7th: .129

8th: .032 9th: .0258

124.4dB

[aimone 4]

do u have neighbors close to u? if so i bet they love u

[kryptonitewhite 1]

do u have neighbors close to u? if so i bet they love u

IDKY but he hasn't complained yet, but during "The Bass Will Destroy You" the 18Hz main tone and 18-13Hz sweeps rattle HIS windows lol. He's a cool dude!

[Randal Johnson 544]

Awesome ...

[kryptonitewhite 1]

Awesome ...

nice sig :-P

messing with rew showed HUGE gains with the spare room door shut vs open, so i built a solid door for the entryway as well

[BaMF101 3]

You know youre a basshead when you make modifications to your HOUSE to make your subwoofers sound better. hahah

[LDW3RD 0]

Good stuff.

I love you it.

[LDW3RD 0]

Good stuff.

I love you it.

[kryptonitewhite 1]

I boarded up one of the windows, put a handle on the spare room door with a latch and weather stripping.... that all added several dB in the single digits... next is bracing the ceiling, it flops up and down a couple inches

may be tearing the towers down and using the spare room, 990 cubic feet, as an enclosure and the door way as the port :-P

Will this 21" work in LLT/EBS?

The $469 price for the 21 is the DR motor – which is a 7.5” triple stacked motor, very beefy.

On the IB 21 – T/S are:

Fs: 21 Hz

Qms: 8.08

Qts: 0.67

Qes: 0.73

Mms: 419 g

BL: 15.35

Vas: 372.7 L

SPL: 90.5 1w/1m

[kryptonitewhite 1]

I have decided to take Thomas-W's advice and build a manifold on my door to house (4) Fi IB3 18's on the top and make 2 slot ports on the bottom out of the rectangles already there. The door is 1.25" thick, I will make a template/face of the entire door adding .75" to the thickness. I'll make a 25"x25" panel to plug the ports so I can run true IB as well. Here is a pic he suggested for me.

Go to Home Depot buy a cheap solid core door' date=' do something like this .......

[img']http://home.comcast.net/~infinitelybaffled/SUB5.JPG

I will begin tearing the Twin Towers down tomorrow and use the wood to build the manifolds and ports. It will be nice to get the EP4000s out of the HT room cuz I haven't done the fan mods.

The IB3s are custom dual 4 ohm, 4 layer IIRC, series/parallel 4 ohm bridged per EP4000 (2 EP4000s, 2 subs per amp bridged).

I am wasting and tearing apart a very wonderful performing pair of enclosures. Under 10% THD these things hit 124dB @ 10Hz and 130dB @ 23Hz. If I would have braced them better that 25Hz-40Hz would have been fixed. They were 125 cubic feet each with a 12" port 12" long for a 13.4Hz tuning, 2 IB3s per tower.

Here is the Twin Towers build log:

http://www.avsforum.com/avs-vb/showthread.php?t=1231247

Here is the new one:

[xiihustleix 6]

You should build something like this:

I bet your neighbors love you...lol. I'd be over there though

[xiihustleix 6]

I have decided to take Thomas-W's advice and build a manifold on my door to house (4) Fi IB3 18's on the top and make 2 slot ports on the bottom out of the rectangles already there. The door is 1.25" thick, I will make a template/face of the entire door adding .75" to the thickness. I'll make a 25"x25" panel to plug the ports so I can run true IB as well. Here is a pic he suggested for me.

Go to Home Depot buy a cheap solid core door' date=' do something like this .......

[img']http://home.comcast.net/~infinitelybaffled/SUB5.JPG

I will begin tearing the Twin Towers down tomorrow and use the wood to build the manifolds and ports. It will be nice to get the EP4000s out of the HT room cuz I haven't done the fan mods.

The IB3s are custom dual 4 ohm, 4 layer IIRC, series/parallel 4 ohm bridged per EP4000 (2 EP4000s, 2 subs per amp bridged).

I am wasting and tearing apart a very wonderful performing pair of enclosures. Under 10% THD these things hit 124dB @ 10Hz and 130dB @ 23Hz. If I would have braced them better that 25Hz-40Hz would have been fixed. They were 125 cubic feet each with a 12" port 12" long for a 13.4Hz tuning, 2 IB3s per tower.

Here is the Twin Towers build log:

http://www.avsforum.com/avs-vb/showthread.php?t=1231247

Here is the new one:

That looks sick. Great job on that build

[kryptonitewhite 1]

Thank you Jack! I did tear the towers down and build the ported manifold, ended up being 1000 cubic feet tuned to...get this... FIVE HURTZ! I get over 110dB from 5Hz up, and I haven't maxed out yet. It's too loud and yes, my neighbors have started to complain! I wish I could build some arays like Brian did, and his IB ain't too bed neither