DUNTECH SOVEREIGN LOUDSPEAKERS

One of the most iconic (and biggest) loudspeakers ever manufactured.
Truly rated as one of the best sounding loudspeakers ever.
In very good condition.
Extreme rare find.
Monster dimensions at nearly 2m high, nearly 1m deep.
Weight - 125kg each.
Will only perform at its best in big rooms.
Will need hi-end amplification (preferable tube amplification) rated at least @ 200 Watts rms.
Selling price still at an average - exceeding far over 200K.
My price 95K.
Pics of the real thing.
Technical details
Frequency Response
27Hz-20KHz
±2dB
Measured at 3.5M (11.5ft) on the tweeter axis
Efficiency 90dB SPL
Referenced at 1M (3.3 ft) on tweeter axis with an input of 2.83 volts RMS (1 watt at 8 ohms)
Nominal Impedance
4 ohms
Variance 3.0-4.5
Power Rating Peak 1000 watts power for 10 mS
Recommended Amplifier Power
100 watts Minimum RMS per channel
Pulse Coherency Factor
Less than 20µS Propagation time error at 3.5M (11.5 ft) on tweeter axis
Harmonic Distortion
Less than 0.3% THD above 50Hz
Referenced at 1M (3.3 ft) on the tweeter axis with an input of 2.83 volts RMS (1 watt at 8 ohms)
Relative Phase Variation Versus Frequency 80Hz-18KHz Varies less that ±25 deg
Crossover
First order type
Drivers
Woofers 2x300mm (12")
Bass 2x175mm (7")
Mid 2x54mm (2")
Tweeter 1x19mm (3/4")
Input Terminals
Gold plated and accepts banana, spade or cable connections
Bi-Wiring Yes
Passive Bi-Amplification Yes
Footnote: All measurements taken at ambient temperature of 23°C (72°F)
Mechanical
Finish
Brazilian Rosewood
Golden Oak
Acoustically transparent black cloth
Size
Height
Width
Depth
1875mm (74")
360mm (14")
862mm (34")
Weight
Per cabinet 125Kg
(275lbs)