Description
Vienna BACH To experience BACHs neatly substantial form is a thrill. With breathtaking realism, BACH reveals a window upon the music possessing great clarity. Yet this clarity is achieved with remarkable weight and body. Do not allow yourself to be misled by BACHs trim, architectural appearance. This speaker is capable of reaching down into the lower octaves with authority; convincingly reproducing the power and weight of largescale productions with ease. Still, its compact dimensions make this a very easy loudspeaker to integrate into your listening room, especially in this day of multiple channels, where five or more speakers may be called upon. Because the human ear is remarkably discerning about transient blurring, a phenomenon engineers refer to as cumulative spectral decay, a great deal of research went into development of a unique driver capable of reproducing the main attack of music with great precision. We employ a special triple-coated woofer that results in nearly ideal stiffness combined with excellent self-damping properties. Alongside, we blend in a silk dome tweeter for sweetly extended highs that can be enjoyed for hours. FEATURES: BACH features a triple coated paper cone driver, shielded by counter magnets and coupled to the cabinet with 8 screws. The production of the bass driver costs pretty much effort: It has a stiff paper cone, but its marvellous sound derives from our hand-coating. It is triple coated, which means, after the first coating and a one-day drying time, a second layer is attached, followed by one additional day drying time and finally finished with a third layer. This method guarantees excellent inner damping. For tweeters, clearly, there is still only one choice: hand-coated silk domes from the Scandinavian school of design. Ferrofluid in the magnetic gap represents an important sound tuning feature: Not using it, or even using it in different viscosities, results in interaction with the cone. Perfectly developed, voices and instrument timbres are perfectly rendered. BACH features a hidden chamber on the bottomside for sand filling of about 12kg. Accessible through the bass, the chamber may be sand filled for the final touch in system tuning by increasing mass and inserting thousands of energy absorbers - the movement of the grains of sand. Doing so results in enhanced smoothness and clarity, for the ultimate in refinement. The Vienna Acoustics cabinets are designed using both, the latest computer analysis -Finite Element Analysis- techniques plus measurements to ensure that they are structurally inert, and extensive listening to verify the theories. All our cabinets are finished with the same outstanding veneer-wrapping technique and the same high grade quality in finish and workmanship is executed. The crossover is mounted on the rear side of the terminal block, the massive 6mm acrylic glass. At Vienna Acoustics, we have addressed the issue of transition resistance by designing proprietary terminal blocks that form a direct connection to the speaker terminals with no additional wiring. Our high quality, gold plated input terminals are designed to accept banana plugs, spade terminals or bare wire connection. All individual crossover components are of the highest quality, and chosen exclusively by listening tests. As a result our designs feature very expensive hand-picked capacitors, and metal-oxyd-film resistors with less than 1% tolerance are chosen for their freedom from inductance. The pressure within the cabinet is inconceivably high. Besides the massive thickness of the tube, the only way solid enough is to screw the port tube to the cabinet. Furthermore, the exact length of the port determines the right and only frequency fb of the port-cabinet-driver system; this tuning is a matter of millimeters. TECHNICAL DATA: Impedance 6 Ohms Frequency Response 38 - 20000 Hz Sensitivity 90 dB Recommended Amplifiers 30 - 200 Watts Drive Units 7 Mid-Woofer Paper Cone, 3 x hand-coated 1 Dome-Tweeter VA Silk Dome Bass System Bassreflex Bass Function QB 3 (Quasi Butterworth) Crossover Components MKP Capacitors Air Coils 0,7% tol. Metal Film Resistors 2% tol., inductance free Crossover Function 2-way 6/12 dB Bessel Weight per Pair 68 Ibs Dimension (W x H x D) inches 7,5 x 33,7 x 9,8 Dimension (W x H x D) mm 190 x 855 x 250 mm
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