Stradivari Homage Loudspeakers

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Specifications:

System: Lute design 3 way reflex.
Cabinet
: Combination of Sandwich construction, obtained by 21 sheets of Maple wood and solid Maple, special resonance control with tuning by copper lead devices.

Tweeter: 28mm soft dome ultra dynamic ultra linear driver.
Midrange: 180mm ultra dynamic ultra linear driver, paper carbonium cone multicoated, equalized with titanium phase plug.
Woofer
: 210mm ultra dynamic ultra linear driver extra-rigid paper carbonium cone, multicoated with aluminum dust cap.

Crossover
: 200 Hz low bass mid, 2.5 kHz mid treble, first order attenuated, very high musical value components.

Sensitivity: 92 dB 1 W 1 mt 2.83 V.
Impedance: 4 ohms nominal.
Power Handling: 30W-300W without clipping.

Frequency Response: 24-30,00 Hz, tuning port
included.

Dimensions: 265 x 580 x 1 l 70 mm W D H, 1 l x 23 x 47 in W D H.
Weight
: 140 Kg. (308 lbs.) net weight pair, 180 Kg. (397 lbs.) shipping weight.
Finishes
: Piano gloss.

$45,000.00



























     
Design Considerations
From lute to violin the shape of the lute inspired the Guarneri. This form is how Sonus faber conceived and realize a highly musical compact monitor to be as close as possible to an acoustic point-source. The shape of the lute also inspired the Amati. Additionally, increasing the radiation area and increasing the extension of the lower frequency spectrum achieved the proper reproduction of full-scale orchestral scores in a more lifelike and believable scale. Moving forward to reproduce a new kind of musical stimuli, much research for Stradivari was focused on the study of the acoustic source in an infinite plane. Just as the radiation of sound from the violin’s “piano armonico” (harmonic plane) is projected so is the sound from Stradivari. By consequence, if the lute inspired Guarneri and Amati, the Stradivari is by the violin.

System
A three-way design in a unique elliptical enclosure featuring 2pi radiation and a symbiotic tuning system. Each driver is loaded into a tunable cavity, open in the case of the midrange and low frequency drive units, sealed for the high frequency unit. The crossover employed has been developed not only for purity of transition but specifically for enhancing the performance of the amplifier/loudspeaker interface.



 

Main Acoustic Enclosure
With the Stradivari the acoustic properties of the driver/cabinet interaction has been brought close to theoretical perfection. The curved external walls are constructed using multiple layers of wood with damping inserts placed between adjacent structural layers. Each wood layer is quality-graded and carefully oriented by density and grain for optimized performance and appearance. Additionally, a special sub-structure of reinforcing ribs is incorporated internally to virtually eliminate any spurious vibrations. The result is an enclosure of exceptional beauty and stiffness, free from undesirable resonances and coloration. By dedicating this project to Stradivari, we could not avoid addressing one of the most famous and mysterious secrets of the great Maestro — the lacquer finish. Great care was taken to find a process that appears both unique and original, air permeable and respectful to the character of the wood. Interestingly enough, this precious lacquer process is quite supportive to the acoustic nature of the speakers sound.










     
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Ann Arbor, Michigan 48104
Phone: 734-662-1812