Keystone Sub Using 18, 15, & 12 Inch Speakers

[maxolini]

wow, this is impressive, 4 krakens 21 in the moded keystone will yield 146dB @30Hz
kraken can go to 21mm xmax that is 3kW, but i calculated the sim @2KW to give the coils some slack 😀

 

[FlipC]

EXACTLY!
I sim'd at 149v with a small amount of EQ to smooth.

And yes I still have and use the SS15s. Same as before 6x6 cardioid end fire setup.
Just did an all 80's party on the 7th. "Purple Reign" in honor of Princes BD. It was a bit LOUD. 😈 Like when Dead Or Alive - Spin me Right Round was played. Some serious 909 action there. As a note - a Go Gos song was played and I thought something happened as no bass. No input being shown on amps so I powered them down and heard the sound change. Powered on and it was there just basically non existent. ( Cardioid at work) It was a wave file being played so it was recorded that way. Freaked me right out.

I have 2 Krakens and amp to push 4 of them with headroom.
Just need to upscale the design. No time as of yet. (if someone wants to do that with the pervious attached HR file...)

 

[maxolini]

I'm glad you are back Flip, I followed the SS thread and your famous dozen!!

4 21 loaded keystones will rock !!
What amp and DSP you have?

 

[weltersys]

I sim'd at 149v with a small amount of EQ to smooth.

Flip,

The impedance minima at 31 Hz is 3.94 ohms, over 5600 watts into a 2000 watt rated driver is a bit optimistic, especially with nearly a 4/1 compression ratio.

Just did an all 80's party on the 7th. "Purple Reign" in honor of Princes BD. It was a bit LOUD. 😈

Did sound for several of Prince's birthday parties back in the 1980's, they generally were a bit loud by the time he took the stage 😉.

I have 2 Krakens and amp to push 4 of them with headroom.
Just need to upscale the design. No time as of yet. (if someone wants to do that with the pervious attached HR file...)

Expect to go through quite a few mouth opening dimensions, shapes and locations before finding one that works similar to the sim response.

Looking forward to seeing how it works out!

Art

 

[BP1Fanatic]

EXACTLY!
I sim'd at 149v with a small amount of EQ to smooth.

And yes I still have and use the SS15s. Same as before 6x6 cardioid end fire setup.
Just did an all 80's party on the 7th. "Purple Reign" in honor of Princes BD. It was a bit LOUD. 😈 Like when Dead Or Alive - Spin me Right Round was played. Some serious 909 action there. As a note - a Go Gos song was played and I thought something happened as no bass. No input being shown on amps so I powered them down and heard the sound change. Powered on and it was there just basically non existent. ( Cardioid at work) It was a wave file being played so it was recorded that way. Freaked me right out.

I have 2 Krakens and amp to push 4 of them with headroom.
Just need to upscale the design. No time as of yet. (if someone wants to do that with the pervious attached HR file...)

Never heard anyone referencing the Roland TR-909 for bass.