Listening for the first time to our new BEETHOVEN Baby Grand REFERENCE™ leaves you breathless with a few burning questions: How on earth is this slim beauty able to create such a soundstage? Where is the hidden subwoofer? And where does this intensity come from?
At the heart of the design stand our brand new spidercone drivers, one 6 inch midrange and two 6 inch woofers, all with our patented flat spidercone within a new construction, consisting of 2 distinct cones – the all new Composite Cone. The plane surface of the spidercone offers the advantage of precise, piston-like movement. Any diaphragm should move in and out as one unit, not as a quivering mass of uncorrelated vibrations. It should move as a perfectly-solid piston. The flat cone is extremely stiff, with bracings of a height of 18 mm (bass) and 14 mm (mid), yet light, respectively, further reinforced by glasfibers in our new X4P™ mixture.
The rearside bracings are constructed in a way that the whole impulse energy is allocated evenly via the whole surface of the flat cone. Every square centimeter delivers the same impulse as its neighbours, which results in revolutionary impulse response control. As our cone/diaphragm-construction builds upon a very large voice coil, the
radiating surface in its middle is large, thereby making it an significant sound determinant. The countless listening testings brought forth such an unexpected unique combination the we gave it a new name, the Composite Cone.
The 5 cm area is now an inverted dome made of woven fabric, double-coated on its rearside. Perfection was achieved by listening to various axial positions, with extraordinary homogenous results by employing a recessing of 8mm. The sum total of the features of the Composite Cone is a peerless symbiosis. Furthermore, one of the reasons why the woven fabric center cone interacts so nicely, is its affinity to the fabric material of our highly musical, hand-coated silk dome tweeter, designed by Vienna Acoustics, hand-crafted by a Scandinavian team of specialists.