Anyone heard of this?????

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kingman
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Anyone heard of this?????

Post by kingman » Sat Jul 31, 2010 3:02 pm

It was not called "the world's most accurate loudspeaker" for nothing

The Sovereign is the flagship of the Duntech range and acknowledged by experts as the finest loudspeaker in the world, certainly the most accurate.

The Sovereign uses a seven driver system with the drivers symmetrically arranged on a vertical axis and time aligned.

The woofers have rigid magnesium diecast baskets and use PHA cone material. A vented, long throw magnet system reduces air movement noise. These low distortion drivers incorporate hexacoil technology for very high power handling and display excellent linear dynamic response.

The bass drivers feature a large diameter aluminium voice coil and former, a wide dispersion pattern, excellent phase characteristics and fast transient response. The soft domed, mid-range drivers are aperiodically damped and the use of ferrofluid dissipates heat very efficiently. The double chamber tweeter exhibits extremely linear response with low distortion and wide dispersion. The high precision, vented pole plate and pole piece is constructed around a special high-flux ferrite magnet and the textile diaphragm is hand coated.

The crossover is a highly complex, first order type with high power handling. The fibreglass printed circuit board is mounted in it's own separate cavity. Polypropylene capacitors are used for their stability, high voltage, low loss and low inductance, together with aircore inductors. Resistors are high powered ceramic type.

Input terminals are gold plated on nickel and are an exclusive Duntech Audio design.

The terminals are spaced for easy access and accept a banana, spade or wire connection.

The cabinet is made of custom wood laminated in thickness up to 33mm (1.3"). It is heavily braced with hardwood to reduce resonances and vibration to inaudible levels.

An optimized, sealed enclosure is used to provide accurate reproduction in preference to a vented enclosure which very often produces a woolly or ill-defined sound.

The cabinet is step baffled to provide time alignment. Selected grades and sizes of foam are strategically positioned internally to optimize driver performance.

Each driver is mounted on gaskets in a separate enclosure. Drivers are fixed with hardened steel machine screws in metal threads.

Sound absorbing, organic felt is used extensively to minimize diffraction distortion and is hand tailored to the shape of the cabinet front.

The Sovereign is available in a choice of hand finished, high quality, wood veneers. Customized finished are also available upon request. The grill frame is an integral part of the loudspeaker design and is covered in acoustically transparent black cloth.


Specifications - Technical Excellence
Electrical
Frequency Response
Measured at 3.5M (11.5ft) on the tweeter axis 27Hz-20KHz
±2dB
Efficiency
Referenced at 1M (3.3 ft) on tweeter axis with an input of 2.83 volts RMS (1 watt at 8 ohms) 90dB SPL
Nominal Impedance
Variance 4 ohms
3.0-4.5
Power Rating Peak power for 10 mS 1000 watts
Recommended Amplifier Power
Minimum RMS per channel 100 watts
Pulse Coherency Factor
Propagation time error at 3.5M (11.5 ft) on tweeter axis Less than
20µS
Harmonic Distortion
Referenced at 1M (3.3 ft) on the tweeter axis with an input of 2.83 volts RMS (1 watt at 8 ohms) Less than
0.3% THD
above 50Hz
Relative Phase Variation Versus Frequency
Varies less that ±25 deg 80Hz-18KHz
Crossover
First order type Yes
Drivers
Woofers
Bass
Mid
Tweeter
2x300mm (12")
2x175mm (7")
2x54mm (2")
1x19mm (3/4")
Input Terminals
Gold plated and accepts banana, spade or cable connections Yes
Bi-Wiring Yes
Passive Bi-Amplification Yes
Footnote: All measurements taken at ambient temperature of 23°C (72°F)
Mechanical
Finish
Brazilian Rosewood
Black Oak
Jarrah
Acoustically transparent black cloth
Yes
Yes
Yes
Size
Height
Width
Depth

1875mm (74")
360mm (14")
862mm (34")
Weight
Per cabinet
125Kg
(275lbs)

Media:

* A professor couldn't tell them apart
* Review snippets
Attachments
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sovereign-diagram.gif
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In reality, it only matters what it sounds like to YOU!!!

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treitz3
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Damn, that's a BIG speaker!!!

Post by treitz3 » Sat Jul 31, 2010 3:09 pm

Interesting design. I'm a little surprised the tweeters are back into the enclosure. I say this because of the diffraction caused by the rest of the speaker. However, they may have overcome this by what they have stated in the build...."Selected grades and sizes of foam are strategically positioned internally to optimize driver performance. Sound absorbing, organic felt is used extensively to minimize diffraction distortion and is hand tailored to the shape of the cabinet front."

We need to find out how much these cost or at least where to demo a pair.
In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

The best way to enjoy digital music reproduction is to never listen to a good analogue reproduction.

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Re: Anyone heard of this?????

Post by BillD » Sat Jul 31, 2010 3:12 pm

Well, Tom, they're back in the cabinet for time alignment, but I agree that diffraction could pose a problem, that could have been solved if he'd used small horns.
It should sound like it isn't there!
There is a difference between hearing and listening...
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Re: Anyone heard of this?????

Post by OconeeOrange » Sat Jul 31, 2010 4:03 pm

kingman wrote:
The Sovereign is available in a choice of hand finished, high quality, wood veneers.
I almost bought a pair of those I saw at K-Mart last week. I passed because of the "VENEER" over metal thing. Me and the bride only buy solid wood now so all the rich yanks who have moved in to the neighborhood will know we have some class.

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Re: Anyone heard of this?????

Post by kingman » Sat Jul 31, 2010 4:08 pm

OconeeOrange wrote:
kingman wrote:
The Sovereign is available in a choice of hand finished, high quality, wood veneers.
I almost bought a pair of those I saw at K-Mart last week. I passed because of the "VENEER" over metal thing. Me and the bride only buy solid wood now so all the rich yanks who have moved in to the neighborhood will know we have some class.
Dipping into the beer barrel eh Bill??? No problem!!!
In reality, it only matters what it sounds like to YOU!!!

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Re: Anyone heard of this?????

Post by OconeeOrange » Sat Jul 31, 2010 4:29 pm

Not yet, but maybe later tonight.

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kingman
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Re: Anyone heard of this?????

Post by kingman » Sat Jul 31, 2010 4:41 pm

OconeeOrange wrote:Not yet, but maybe later tonight.
No problem....already there!!!!
In reality, it only matters what it sounds like to YOU!!!

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Re: Anyone heard of this?????

Post by gdb » Sat Jul 31, 2010 7:10 pm

More like suckin' the juice from the bottom of a silo! :lol: Just kiddin' :)

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Re: Anyone heard of this?????

Post by TNRabbit » Sat Jul 31, 2010 9:41 pm

I've heard of them; know nothing about them. :-k

At that weight, they WILL NOT be cheap~ =;


Why don't you get a pair & let us know how they sound? :D
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Re: Anyone heard of this?????

Post by kingman » Sun Aug 01, 2010 8:07 am

TNRabbit wrote:I've heard of them; know nothing about them. :-k

At that weight, they WILL NOT be cheap~ =;


Why don't you get a pair & let us know how they sound? :D
costs $12,950 to $15,000, depending on one's choice of cabinet finish; it is 74 inches high, 14 inches wide, and 32 inches deep.
I don't have the room for them..... :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol:
In reality, it only matters what it sounds like to YOU!!!

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Re: Anyone heard of this?????

Post by treitz3 » Sun Aug 01, 2010 8:18 am

That price is actually not that bad. The Wilson Audio Watt Puppies I was looking at were 16K. Thing is, the Wilson's I can audition twenty miles up the road. Since these speakers were made in Australia, I am gonna have a hard time finding a pair here to audition. ](*,)
In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

The best way to enjoy digital music reproduction is to never listen to a good analogue reproduction.

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Re: Anyone heard of this?????

Post by Chauss » Mon May 16, 2011 1:54 pm

I know this is an old thread...but- Duntech Soveriegn's were AWESOME speakers in their day!
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Re: Anyone heard of this?????

Post by OconeeOrange » Mon May 16, 2011 2:07 pm

Chauss wrote:I know this is an old thread...but- Duntech Soveriegn's were AWESOME speakers in their day!
Man, would have loved to have been with you where listening to those.
So far the best I have gotten near are Kingman's Bose.

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Re: Anyone heard of this?????

Post by TNRabbit » Mon May 16, 2011 2:15 pm

OconeeOrange wrote:
Chauss wrote:I know this is an old thread...but- Duntech Soveriegn's were AWESOME speakers in their day!
Man, would have loved to have been with you where listening to those.
So far the best I have gotten near are Kingman's Bose.
LOL~
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From FrankieD's lips to your ears: Sunfire - a quiet box of endless power.

Sunfire TG-IV/400~7 Amp
Carver SD/A-360 CDP
Benchmark DAC-1
Sony SACD/DVD-A
Active bi-amp: Ashly XR-1001 & 2 Rane PEQ-15s
Main: HotRodded AL-IIIs
Sub: Klipsch RT-12d
Center: Sunfire CRS-3c
Surround: Sunfire CRS-3 (x 2)

OconeeOrange wrote:"Gary likes to play it 'loud' as do I. His system begs you turn it up until you die"

RIP WIlliam B. Dibble, 1948-2012. I'll miss you my friend.

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Re: Anyone heard of this?????

Post by OconeeOrange » Mon May 16, 2011 2:29 pm

TNRabbit wrote:
OconeeOrange wrote:
Chauss wrote:I know this is an old thread...but- Duntech Soveriegn's were AWESOME speakers in their day!
Man, would have loved to have been with you where listening to those.
So far the best I have gotten near are Kingman's Bose.
LOL~
Go ahead and laugh you snob. [-X

Have you ever heard 901's played through a LightStar system - :lol:

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