Напольная акустика — Vienna Acoustics Liszt Reference

The Liszt Reference is an Austrian tower speaker with three ways from Vienna Acoustics, built around a coaxial driver that mounts its tweeter concentrically within the midrange. The upper section, called the Music Center module, is completely independent from the lower cabinet. Finishes are true Piano Black, Piano White, Cherry and Rosewood veneer.

Key specs that matter

The tweeter uses a 3/4 inch ring dome diaphragm with a phase plug and a neodymium magnet system, and it is mounted concentrically in a 6 inch midrange composite cone with the flat X4P spidercone. Three 7 inch woofers handle the bass, each combining the composite X4P spidercone with a sunken fabric dust cap. Vienna Acoustics rates the response at 28 Hz to 35 kHz, sensitivity of 91 dB and a 4 ohm impedance, and it recommends amplifiers of 50 to 400 watts RMS. The cabinet is 198 x 1148 x 435 mm (width, height, depth) without its base, or 295 x 1210 x 435 mm with the base fitted, and a pair weighs 98 kg.

Engineering and use context

Because the Music Center module is separate from the bass cabinet, it can be angled toward the listening position while staying mechanically isolated from the woofers below. The ported bass enclosure is built with seven internal braces that split the cabinet into two chambers, one holding a single woofer and the other a pair. The three-way crossover combines 6 dB and 12 dB Bessel slopes. Its components are polypropylene capacitors at 1 percent tolerance, coils at 0.7 percent tolerance, air coils for the midrange and tweeter sections, a special powder core coil for the bass section and 1 percent metal film resistors without inductance. With tweeter and midrange sharing one axis, the output of both drivers originates at a common centre, which keeps them aligned in time at the seat. At well over a metre tall and with a deep cabinet, the pair needs a room larger than 20 m2 to stand free of the walls.

Pairing

A demanding nominal load and a recommended window reaching into high power point toward a high-current transistor design, either a strong integrated or a dedicated stereo power amplifier fed by a preamplifier. The high sensitivity rating means the lower end of the window is also usable, so owners are not forced toward the largest amplifiers.

Alternatives

For a smaller footprint, Vienna Acoustics offers the Beethoven Concert Grand Reference tower in its Concert Grand range.