Pulsar Loudspeakers

PULSAR R 20
PULSAR R 20

The R 20

The Pulsar R 20 is a compact bookshelf speaker, incorporating technology derived from the ST 20 floor-stander. In spite of the R 20’s relatively small cabinet, its bass is tremendously impressive, and the speaker offers a lively, very natural sonic image. The R 20 sounds much “bigger” than it actually is! The refined cabinet is beautifully built, with the same curved shape and rigid design. All surfaces are rubbed down in a multi-stage process before the high-gloss lacquer is applied. The finish is of superb quality!

Technology

The High-Tech treble unit with its special 25 mm dome is a completely new development, and is the same driver employed in the ST 20. The 150 mm long-throw bass unit, on the other hand, is a modified version, because the R 20 is a classic two-way design, and this driver therefore also has to reproduce the mid-range as well. In spite of the R 20’s relatively small cabinet, its bass is tremendously impressive, and the speaker offers a lively, very natural sonic image. The R 20 sounds much “bigger” than it actually is! An important design feature of the new Pulsar speakers is the totally smooth baffle, devoid of corners or edges: there is no hint of a screw or recess which could disturb the sound dispersion or generate reflections. The driver chassis are covered by accurately shaped pressure-cast aluminum rings which lie perfectly flush with the baffle. This impressive sophistication enables the sound to disperse perfectly, and the sonic image is completely detached from the loudspeaker. The result is incredibly precise and spacious reproduction with totally accurate source positioning.

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PULSAR ST 20
PULSAR ST 20

The ST 20

The Pulsar ST 20 is an extremely slim, compact floor-standing loudspeaker which combines outstanding acoustic qualities with sleek appearance. It is a new design which we have developed from the ground up, and features the very latest high-performance drivers, as this was the only way our development engineers were able to fulfil the design brief for this new range of speakers. Although their cabinets are small in size, we required the new Pulsars to have the ability to radiate low bass cleanly and at high pressure, at the same time reproducing an open, uncoloured treble / mid-range with great vitality.

Technology

These are the reasons behind our decision to adopt a complex three-way system, based on two long-throw bass units, a wide band mid-range and a High-End dome tweeter. All speaker cones are produced from aluminum of various thicknesses using specially calculated embossing tools, ensuring that they are very stiff and strong, but still light in weight. The drive unit magnets are extremely powerful, while the magnet and suspension systems are of highly sophisticated design, and made from the finest materials available. As a result these High-End drivers are capable of generating tremendous levels as well as being amazingly dynamic and fast.

A precisely calculated cross-over unit consisting of low-loss components guarantees that all the drivers are fed the perfect signal in the optimum working range for excellent radiation characteristics. The crossovers have separate grounds for bass and mid-high range, making the speakers ideal for bi-wiring arrangements.
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PULSAR ST 21
PULSAR ST 21

The ST 21

Elegant, timeless appearance combined with superb sound and sophisticated technology: that sums up the Pulsar ST 21. It is the ideal floor-standing speaker for demanding music lovers seeking a compelling loudspeaker for the living room. Although lean and slender, these speakers are effortlessly capable of transforming even large rooms into concert halls whilst satisfying elevated audiophile requirements. The ST 21 reproduces every kind of music in a natural, uncoloured manner – exactly as it was recorded.

Technology

Its impressive deep bass ensures that even the lowest frequencies are presented cleanly, while the mid-range section handles challenging passages with freedom and total naturalness, and the treble range is transparent and as smooth as silk. We resolved to adopt an advanced three-way system incorporating two long-throw bass drivers, one wide-range mid-range unit and a High-End dome treble unit. This arrangement ensures that on the one hand the ST 21 can deliver accurate, intense bass, and on the other a natural, uncoloured mid-range which is conveyed by the mid-range unit only, as the low crossover frequency avoids phase shifts and gaps in the frequency response.

All the cones are manufactured from different thicknesses of aluminium using specially calculated embossing tools, resulting in lightweight cones which are very strong and stiff. Extremely powerful magnets are employed, while the magnet and coil systems are of very refined design, and made using premium materials. The result is that these High-End drivers are capable of generating enormously high levels combined with extraordinary dynamism and speed. An accurately computed crossover unit based on low-loss components ensures perfect control of all drive units in their optimum working range, and outstandingly good radiation characteristics. The crossovers have separate earth systems for the bass and mid-range, and this makes them perfectly suited to bi-wiring arrangements.
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