New Spidercone Bass Drivers
Completely new for the Beethoven Baby Grand are the Vienna Acoustics developed 6” bass/midrange Spidercone drivers, used here as ULF (or Ultra Low Frequency) drivers. Similar to the 7” reference ULF driver found in the BEETHOVEN Concert Grand, this 6” version offers extremely controlled piston behaviour for superb bass dynamics. This was possible due to Vienna Acoustics’ experience with their proprietary “spidercone” technology in combination with advances in material formulations of TPX and polypropylene based synthetics, allowing for maximum inner damping while the spidercone ribs provide maximum stability for bass impulses. Beethoven Baby Grand uses two of these unique drivers, resulting in a combined surface area that allows for superior dynamics in bass reproduction, with power, speed, and detail.
All bass and midrange drivers benefit from a new inverted rubber surround design and formulation that constitutes a breakthrough in no loss damping of cone edge resonances.
New Midrange Drivers
The new 6” midrange driver benefits from a reformulation of Vienna Acoustics’ proprietary XPP cone material. Combining TPX, the unique thermoplastic used in all XPP cones, with three polypropylene based synthetics achieves maximum inner damping, ultra-low mass, and precise control over cone density and rigidity. Dubbed X3P (X3P because of the three additional polymers in its composition) this new cone material allows the driver to provide an extraordinarily wide bandwidth, while possessing a level of inner detail, quietness, and control that is truly remarkable.
All bass and midrange drivers benefit from a new inverted rubber surround design and formulation that constitutes a breakthrough in no loss damping of cone edge resonances.
New Tweeter
The new tweeter has been developed by Vienna Acoustics, in conjunction with Scan Speak, resulting in greater resolution of the subtlest of high frequency impulses while maintaining the midrange warmth and clarity for which Vienna Acoustics has been renowned.
Crossover Layout
A completely new linear crossover layout, with the copper circuit paths arranged in the direction of electron flow, takes into account the potential for sympathetic and parasitic interactions among crossover components that may inject unwanted noise and distortions while allowing for more direct and efficient transfer of signal to the drivers which leads to a greater level of detail and purity.
Cabling
New proprietary cabling, consisting of large scale solid copper conductors, with each cable pairing precisely twisted a prescribed number of turns for the particular length of each cable so that any noise injection through the wiring harness is avoided.
New gold-and-silver alloy terminal for lowest transfer resistance and durability are directly connected to the crossover circuit board to ensure complete current delivery and no loss of clarity in the signal transfer from binding post to crossover.
Cabinets & Finishes
Cabinets boast massive baffles that are 1.6" thick, 30% thicker than previous models, for maximum rigidity and resonance control.
All finishes are applied to the highest of standards using the state-of-the-art veneer-wrapping technology for the front and rear baffles first pioneered on the Classic series. A true Piano Black lacquer is now available, the quality of which will permit inclusion into any living room as it mirrors its surroundings.
Grills
Innovative and unique grilles feature an aluminium frame that incorporates an integral V-shaped phase diffuser to control dispersion so that they can be left on for all but the most critical listening without an adverse influence on performance. In fact, it can be used as an additional tuning device for the audio enthusiast, benefiting soundstage presentation both in depth and stereo imaging. As an additional benefit, the V-shaped groove running the length of the middle of the grille results in a more elegant appearance for the speaker.
Special decoupling and stability optimization through the use of a high pressure die cast aluminium spike assembly and solid steel spikes further improve performance.
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Impedance |
4 Ohms |
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Frequency Response |
30-22000 Hz |
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Sensitivity |
91 dB |
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Recommended Amplifiers Drive Units |
40 - 250 Watts |
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2 x 6” Woofer (3) |
XPP "Spidercone“ |
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6” Midrange |
X3P Cone |
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1.1” Dome-Tweeter |
Hand-Coated VA Silk Dome |
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Bass System |
Bass Reflex |
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Bass Function |
Impulse Optimizing QB 3 (Quasi-Butterworth) |
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Crossover Components |
MKP Capacitors, 1% tolerance Coils 0,7% tolerance, Midrange/Tweeter Section Air Coils, Special Powder Core for Bass Section Metal Film Resistors 1% tol., Inductance Free |
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Crossover Function |
3-way, 6 dB and 12 dB Bessel |
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Weight per Pair |
130 Ibs |
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Dimension (W x H x D) inches |
6.7 x 38.9 x 12.9“ (without spike assembly) 8.5 x 40 x 14.75 (with spike assembly) |
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Dimension (W x H x D) mm |
170 x 987 x 328 mm (without spike assembly) |
Optimised aluminium spike assembly included.
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