My own "Ultimate" loudspeaker

StigErik · 26th February 2008, 02:01 PM

As promised in a other thread here about an ultimate loudspeaker - here's a presentation of my own current speaker system. Ultimate or not, its kind of interesting I think.

This first post contains a picture and physical parameters....

Height: 190 cm
Width: 48 cm
Depth: 70 cm
Weight: approx 300 kg

Build from: MDF
Filled with: a lot of sand!!

More info will follow!

FullThrottleRic · 26th February 2008, 02:21 PM

Very nice

How big is the crane you use to move them around?!

StigErik · 26th February 2008, 02:22 PM

A few words on the cabinets first. The system is devided into three sections, two bass boxes and a large mid section. The system has to be set up on-site because of its weight.

The bass boxes are made from 30 mm MDF with internal bracing. They are quite light, about 35 kg without the driver. Internal volume is 100 liters.

The mid section houses the tweeter, two midranges and two mid-woofers. All drivers have their separate closed chamber. There is also a room at the back, where the power amplifiers are placed. There are large chambers along the sides and between the amplifier room and drivers that are filled with sand for damping and mass. More than 100 kg of sand are used in each cabinet! The sand was filled in after the mid section was mounted on top of the bottom bass box. With sand, drivers and amplifiers, the mid section weighs at least 220 kg.

The cabinets are laquered. I dont like veneer...

StigErik · 26th February 2008, 02:25 PM

Quote:

Originally posted by FullThrottleRic
Very nice

How big is the crane you use to move them around?!

I dont move them... naturally.

Dan2 · 26th February 2008, 02:33 PM

Ooooooohh i want one!! Gona ask Santa now so he can reinforce his sleigh for the wieght

bonjonno · 26th February 2008, 02:44 PM

Is there a thick concrete slab or bedrock under the flooring? Looks gorgeous. Bet it sounds BIG.

ShinOBIWAN · 26th February 2008, 04:07 PM

Holy cow! Those are huge.

That's got to be up there with the best speakers I've seen on here. Great work.

wigginjs · 26th February 2008, 04:31 PM

Stig:

Oh, please, more details about the entire system including the room. I believe you have a website detailing it somewhere... could you provide the link?

Thanks

ShinOBIWAN · 26th February 2008, 05:50 PM

Quote:

Originally posted by m0tion
link?

http://memweb.newsguy.com/~stigerik/

StigErik · 26th February 2008, 06:07 PM

Quote:

Originally posted by bonjonno
Is there a thick concrete slab or bedrock under the flooring? Looks gorgeous. Bet it sounds BIG.

They do not sound big at all, if you by "big" mean something lik "wall of sound". I think they sound more like really good electrostats with a pair of well-integrated sub's, only with 30 dB greater dynamic range.

I do have a concrete floor in my room. The speakers stand on a separate slab, so any vibration from the speakers is not transfered to the rest of the floor.

The link to my homepage with some more info on these beasts and my listeing room has been posted here already......

26th February 2008, 02:01 PM	#1
StigErik diyAudio Member Join Date: Feb 2008	My own "Ultimate" loudspeaker As promised in a other thread here about an ultimate loudspeaker - here's a presentation of my own current speaker system. Ultimate or not, its kind of interesting I think. This first post contains a picture and physical parameters.... Height: 190 cm Width: 48 cm Depth: 70 cm Weight: approx 300 kg Build from: MDF Filled with: a lot of sand!! More info will follow!

26th February 2008, 04:31 PM	#8
wigginjs diyAudio Member Join Date: Dec 2003 Location: Columbia, SC	Stig: Oh, please, more details about the entire system including the room. I believe you have a website detailing it somewhere... could you provide the link? Thanks __________________ The Four Chairs DIY Home Theater

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26th February 2008, 02:21 PM	#2
FullThrottleRic diyAudio Member Join Date: Apr 2001 Location: Leeds, UK	Very nice How big is the crane you use to move them around?!

26th February 2008, 02:22 PM	#3
StigErik diyAudio Member Join Date: Feb 2008	A few words on the cabinets first. The system is devided into three sections, two bass boxes and a large mid section. The system has to be set up on-site because of its weight. The bass boxes are made from 30 mm MDF with internal bracing. They are quite light, about 35 kg without the driver. Internal volume is 100 liters. The mid section houses the tweeter, two midranges and two mid-woofers. All drivers have their separate closed chamber. There is also a room at the back, where the power amplifiers are placed. There are large chambers along the sides and between the amplifier room and drivers that are filled with sand for damping and mass. More than 100 kg of sand are used in each cabinet! The sand was filled in after the mid section was mounted on top of the bottom bass box. With sand, drivers and amplifiers, the mid section weighs at least 220 kg. The cabinets are laquered. I dont like veneer...

26th February 2008, 02:33 PM	#5
Dan2 diyAudio Member Join Date: Sep 2005	Ooooooohh i want one!! Gona ask Santa now so he can reinforce his sleigh for the wieght

26th February 2008, 02:44 PM	#6
bonjonno diyAudio Member Join Date: Jun 2005 Location: Rapid City	Is there a thick concrete slab or bedrock under the flooring? Looks gorgeous. Bet it sounds BIG.

26th February 2008, 04:07 PM	#7
ShinOBIWAN diyAudio Member Join Date: Feb 2004 Location: UK	Holy cow! Those are huge. That's got to be up there with the best speakers I've seen on here. Great work.

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