Osborn Eos and the Eos Reference


"
the highest possible sound quality for a speaker of this size"


"The ultimate mini reference monitor"

Osborn Eos:

         
The Osborn Eos has been designed and constructed in Australia, with no compromise in order to obtain the highest possible sound quality for a speaker of this size. The criteria in the choice of components, materials, size and cost is the achievement of a sound quality as close as possible to the larger Osborn "Epitome" and "Eclipse", but in a bookshelf sized speaker. When the bass driver of the legendary Titan became unavailable, we needed to come up with a viable alternative, preferably in a smaller size, as the size and 26 kg weight of the Titan was a problem in some applications. To achieve the performance of the Titan in a smaller size was going to take an incredible mid/bass driver. We believe that our design goals have been realised with this speaker. The driver utilises the Utopia "W" Cone and a Neodymium magnet for towering performance. The soundstage size, dynamics and bass extension, is hard to believe from such a compact design. One of the first people to hear it summed it up when he said. "This might sound like a cliché, but the hair on the back of my neck is standing up."
Several of the world's best speakers were used as references in the design of these speakers. We believe that the sound quality of these speakers is superior to all the references anywhere near their price. Several type of cabinets were tried during the evolution of these speakers. This is the best that we could achieve. They are constructed of 25 mm Customwood (1") and in the Reference version ,are fully lined with a heavy felt/lead sheet sandwich. High quality timber veneers are used on these speakers. The cabinets are shaped using high precision, computer controlled milling equipment. They are exceptionally heavy, solid and are acoustically inert. High quality natural timber veneers are used, and every cabinet is carefully hand finished to ensure a superb quality finish which will grace any living room. The drive units were chosen from the best available from around the world for unrivalled speed and accuracy. As a result, a level of transparency comparable to far more expensive speakers has been achieved.

          The crossovers use the best components attainable. The capacitors are imported from the U.S.A. and the inductors are wound in-house as none are available commercially which meet our criteria. Each crossover is hard wired with Ultra Hi-Speed, Ultra wide bandwidth, Data Link Cable.

          It is this minimal compromise approach which results in stunning sound quality. Only the best quality Turntable/CD Player and Amplifiers were used in the design of these speakers. It is this attention to detail and no-compromise approach which allows these speakers to achieve their design goals. They are very easy to drive and do not present any difficult loads to amplifiers. "Super Amps" are not required. Modest power, high quality amplifiers are recommended. They perform exceptionally well with smaller valve and single ended amplifiers. They are designed to perform their best within about 20 to 30 cm from the back wall, so are perfect for bench or shelf placement. They also have such an incredible dispersion, that they do not need to be toed in.

          These speakers have a number of outstanding features - The ability to separate instruments and place them firmly on a sound stage of exceptional width and depth: The instruments retain their correct pitch, tone and shimmer: Dynamic range and speed unmatched by speakers in their size and price range and the ability of drums to retain most of their impact and depth.


Specifications:

DIMENSIONS   220 X 300 X 390 mm
WEIGHT 12kg
EFFICIENCY 91 db for 1 watt at 1 meter.
DRIVER SPECIFICATIONS
 Tweeter 25mm fabric dome withan optimally shaped dome and a wide SONOMEX surround. Low viscosity magnetic fluid which provides excellent cooling while maintaining a low resonance frequency.
6 mm solid metal front plate with a slight loading characteristic which ensures
linear frequency response, and a stiff and stable connection to the cabinet.   A double magnet system, with a substantial injection-moulded rear chamber, with complex internal shape and reinforcing ribs, which eliminate unwanted chamber resonances and reflections.
 Mid/Bass 165mm "W" Cone. 40mm voice coil with Neodymium magnet.
 FREQ. RESPONSE 45 to 19000 Hz +/- 2 db. -10 db points 35  and 21000  Hz.
 CROSSOVER POINTS 3700 Hz @ 6 db/octave.
 MINIMUM IMPEDANCE 4 Ohm at 200 Hz.
 MAXIMUM Rec. POWER 100 Watts R.M.S per Channel.
 Rec. Min. 10 Watts per Channel.
 Rec. Ideal. 30 - 50 Watts per Channel.



Eos Reference:
Identical to the Eos with the exception of the tweeter, and they are fully lined with a heavy felt/lead sheet sandwich. The Eos Reference uses the same tweeter as used in the Grand Monument. This is arguably the finest tweeter available today.

        
Specifications:

DIMENSIONS 220 X 300 X 390 mm
WEIGHT 14 Kg.
EFFICIENCY 91 db for 1 watt at 1 meter.
DRIVERS SPECIFICATIONS  
Tweeter  Tweeter  (For Grand Monument)  
29mm soft dome tweeter with a high
efficiency ring magnet consisting of 6 radial
Neodymium magnets.
Mid/Bass 165mm "W" Cone. 40mm voice coil with Neodymium magnet.
FREQ. RESPONSE 45 to 22000 Hz +/- 2 db. -10 db points 35  and 26000  Hz.
CROSSOVER POINTS 3700 Hz @ 6 db/octave.
MINIMUM IMPEDANCE  4 Ohm at 200 Hz.
 MAXIMUM Rec. POWER 100 Watts R.M.S per Channel.
 Rec. Min. 10 Watts per Channel.
 Rec. Ideal. 30 - 50 Watts per Channel.