My new subwoofer

[8x24 inch]

My new DIY subwoofer

My English is not so good, so it will be simple answers from me.

8 Precision Devicses PD2450

 

[8x24 inch]

It will be used from 10- 60hz
Two drivers in each 700 liter cabinet. 2800liter total
frequency response in sweet spot without any EQ. No smoothing

 

[8x24 inch]

waterfall

 

[Brian Steele]

Only 8? .

I likey....

 

[xrk971]

What is your max predicted SPL at 20Hz?

 

[Bibliophile]

Nice woodwork.

 

[8x24 inch]

What is your max predicted SPL at 20Hz?

I have measured 125dB in listening position at 20hz. It was with about 100 watts / drivers.
Each drivers can handles 400watt before x-max is reached. So around 130 db should be within reach.

 

[bitSmasher]

I'd like to see where the listening position is in relation to the subs, also what else are you running?

 

[8x24 inch]

Posting a picture of my old listening room. Listening Distance 2.6m. Slightly over 2m from the rear wall
Dimensions: 2,15m x 4.4m x 6,9m
Midrange and treble section should also be used in the new setup.
Tweeter will change to Raal 140-15d.
It should also be a mid bass system between 60-400hz. It is not decided yet

 

[OMNIFEX]

That is a very good response. It is nice to see a subwoofer that offers information below 20 Hz.

 

[Rick J. B.]

Whoa!

 

[Etocynned]

nice rig

 

[8x24 inch]

That is a very good response. It is nice to see a subwoofer that offers information below 20 Hz.

For me is a good frequency response important.
This was FR in my previous setup after calibrering with DEQX

1/24 smoothing

 

[epa]

more =better

 

[8x24 inch]

Thanks all for the feedback
This thread should only be about my subwoofer, so I'll try to create a new thread where we can discuss the rest of my stereo equipment

best Regards
Tor

 

[ampzillason]

lot of woofers!
maximum respekt man!
(and people say i`m a freak hahah)

 

[compaddict]

As I sit outside with my windows shut listening to my 8 X 10" subs, I can't imagine 8 X 24"!

 

[CLS]

What an exciting system !

What's behind the black grilles at the corners?

ps. I have zero doubt about the capability of these woofers. Instead, I guess the house would rattle horribly. Maybe the neighbor's house, too. Mwhahahaha ...

 

[ErnieM]

Each cone is just about the same area as two 18's. So about the same output as 16 medium power 18's. Enough for impressive sound in medium size clubs and music events...

I'd love to have those for my pa system.

 

[8x24 inch]

What an exciting system !

What's behind the black grilles at the corners?

ps. I have zero doubt about the capability of these woofers. Instead, I guess the house would rattle horribly. Maybe the neighbor's house, too. Mwhahahaha ...

From the construction period of the room

The black grilles is acoustics panels of rock wool with thickness 100mm

The corners are filled with Glava = Norwegian glass wool