BR 15.34
Bass reflex tube which can be mounted without screws.
Bass reflex tube which can be mounted without screws.
This 2-way column speaker, ALTO II, designed as a 30 litre vented system, is another suggested application from the Alto series. The same driver arrangement has been selected as for the ALTO I but, here, the lower range octaves benefit from the enlarged cabinet volume and optimum bass frequency to produce powerful, responsive bass.
ALTO II is also well-suited to improving the sound of low-priced compact hi-fi systems.
The ALTO II can be positioned freely anywhere in the room, producing clearly defined spatial sound character.
The ALTO III c has been designed as a 3-way column speaker with an inside volume of no less than 44+3 litres. The twin bass arrangement using two W 170 S - 8 Ohm drivers in parallel guarantees very powerful low-ranging bass reproduction, that comes across crisply and impressively even with hard-hitting beat.
From around 450 Hz upwards, the 10 cm mid-range cone W 100 S - 4 Ohm takes over, mounted in its 3 litre enclosure. Single instruments and solo voices are reproduced throughout the mid-range in a most tangible, crisp fashion, where the precise definition of virtual sound sources and their associated range layering, so typical for good mid-range cones, comes across well.
Above about 3500 Hz, the sound character is rounded off neatly by the crisp 19 mm tweeter DT 94 - 8 Ohm. The exuberance demonstrated by the ALTO III c promises to put listeners in a good mood and keep them there for several hours of musical pleasure.The ALTO III c has been designed as a 3-way column speaker with an inside volume of no less than 55 litres. The twin bass arrangement using two W 170 S - 8 Ohm drivers in parallel guarantees very powerful low-ranging bass reproduction, that comes across crisply and impressively even with hard-hitting beat.
From around 450 Hz upwards, the 10 cm mid-range cone W 100 S - 4 Ohm takes over, mounted in its 3 litre enclosure. Single instruments and solo voices are reproduced throughout the mid-range in a most tangible, crisp fashion, where the precise definition of virtual sound sources and their associated range layering, so typical for good mid-range cones, comes across well.
Above about 3500 Hz, the sound character is rounded off neatly by the crisp 19 mm tweeter DT 94 - 8 Ohm. The exuberance demonstrated by the ALTO III c promises to put listeners in a good mood and keep them there for several hours of musical pleasure.
The ATLANTIS has been consistently designed for optimum sound-pressure rating while retaining a moderately sized cabinet and an elegant appearance. In the bass range, two AL 170 - 8 OHM are mounted in parallel but in separate housings, where each has about 27 l of air space to itself. These speakers have a lower limiting frequency of 28 Hz meaning that they generate good, solid deep bass. Where you position the speakers is more or less a matter of choice, but they should not be right against the wall (a minimum of 10 cm is needed) as otherwise the effect of the bass reflex tubes will suffer.
Compared with the 'normal' AL 130 - 8 OHM, the AL 130 M - 8 OHM is equipped with a shorter voice coil. This improves efficiency and makes it the ideal choice in this combination.
Used as a tweeter, the KE 25 SC - 8 Ohm is activated from 2500 Hz. The distortion factor of this ceramic dome driver is really low at these frequencies, so that even high volume levels come across completely free of distortion.
The first thing one notices about the CASABLANCA III cabinet is its striking design. This cabinet shape, however, has more than just eye-catching qualities, its acoustic qualities have to be heard to be believed.
The speaker consists of a large lower chamber and a top-mounted upper chamber and the two are interconnected through an opening that has been exactly calculated. This is, in fact, a twin-chamber vented cabinet. As a result of the twin-chamber arrangement, it is possible, in comparison with a conventional vented cabinet, to extend the range downwards by a considerable amount. The Helmholtz resonance of the upper chamber is around 90 Hz, that of the lower chamber around 33 Hz.
The fibre glass high-end GF 200 - 2 x 4 Ohm woofer has been used in the CASABLANCA III and helps achieve unbelievably low-range bass levels and, at the same time, producing remarkable maximum volume levels for a speaker of this size. The two tried-and-tested "softening" textile dome units G 50 FFL - 8 Ohm and G 25 FFL - 8 Ohm guarantee transparent, rounded sound qualities across the entire mid- and high-range. The convex cones also blend in well with the overall design of the CASABLANCA III model. The result is an unusual speaker both as regards its design and its construction principles with excellent low-range bass reproduction coupled with tremendous signal fidelity.
Not available as a complete kit.
The first thing one notices about the CASABLANCA IV cabinet is its striking design. This cabinet shape, however, has more than just eye-catching qualities, its acoustic qualities have to be heard to be believed.
The speaker consists of a large lower chamber and a top-mounted upper chamber and the two are interconnected through an opening that has been exactly calculated. This is, in fact, a twin-chamber bass reflexcabinet. As a result of the twin-chamber arrangement, it is possible, in comparison with a conventional bass reflex cabinet, to extend the range downwards by a considerable amount. The Helmholtz resonance of the upper chamber is around 90 Hz, that of the lower chamber around 33 Hz.
The woofer in the CASABLANCA IV is the AL 200 - 8 OHM, which is so popular among connoisseurs of high-end technology. Thanks to its long-stroke woofer, the AL 200 - 8 OHM helps the CASABLANCA IV achieve unbelievably low-range bass levels and, at the same time, producing remarkable maximum volume levels for a speaker of this size. Another "first" in this model is the two tried-and-tested DSM 50 FFL - 8 OHM and DSM 25 FFL - 8 OHM titanium dome units, that guarantee transparent, rounded sound qualities across the entire mid- and high-range.
Results: The result is an unusual speaker both as regards its design and its construction principles with excellent low-range bass reproduction coupled with tremendous signal fidelity.
The EXPERIENCE V 20 is a 96 litre vented cabinet and features a bafflearrangement based on the D'Appolito principle arranged symmetrically around the tweeter. In order to suppress any unwanted interference by the front baffle on the radiation pattern, the entire mid- to high-range unit is not positioned in the middle of the cabinet, but towards the inner side.
The woofers in the EXPERIENCE V 20 are two W 200 S - 8 Ohm 's in parallel up to around 450 Hz. From here, the mid-bass unit takes over. The W 130 S - 8 Ohm 's, also connected in parallel, cover the mid-range frequencies up to around 3000 Hz and hand over to the G 25 FFL - 8 Ohm textile dome unit at the high-range.
The crossover unit is designed for bi-wiring.
The very first impression you get of this V 20 speaker system will demonstrate the unrestricted exuberance the speakers are capable of. At the lower octave levels, the two 20 cm woofers produce crisp bass sounds with a dynamic punch that is unusual for speakers of this size. The mid-range produces absolutely linear, undistorted sound and the overall effect is of tangible sounds, spatially separated from the speakers themselves. The crystal clear, airy high-range reproduction from the 25 mm textile dome unit puts the final touch to the upper frequency end.
The 2-way FONTANA system is a 360° omnidirectional speaker with a highly attractive appearance and is particularly well suited as an effect speaker. The speakers are arranged so that they point upwards and reflect the sound output by means of two specially shaped cones. This results in a uniformly distributed frequency response, that matches your hearing expectations in the room.
The best sound quality is achieved if these omnidirectional speakers are positioned about 50 cm to 1 m from a wall. This produces spatial sound of such tangible quality that it is perceived at any position in the room. Virtual sound sources, such as instruments or voices perceived to be between the speakers, can be clearly located from any seating position in the room, which gives listeners a freedom of movement in the room they have never had before and this holds true even in acoustically difficult rooms. This results in extraordinary diffusion fields for the effects channels in Dolby® Surround and multi-channel systems.
The DT 94 - 8 Ohm tweeters, ideal for this type of system, working in conjunction with the mid-bass AL 170 - 8 Ohm and the carefully tuned crossover unit, ensure balanced, neutral sound reproduction. Low-range bass frequencies are boosted by the BR 15.34 tube, which is situated in the bottom of the bass chamber and guarantees clear, powerful bass reproduction.
The omnidirectional FONTANA, tested in an anechoic chamber, achieved a maximum volume of 98 dB. If positioned, as recommended, near a wall, however, the system produces + 6 dB or, in a corner of the room, + 9 dB, making this omnidirectional speaker ideally suited even for larger rooms. If required, two FONTANA's can be installed on each side to produce a full surround field. To do so, position one omnidirectional speaker to the side of the seating arrangement and a second one behind that. The same applies to the other side.
The FONTANA is ideal as a fullrange effects speaker system for high-quality surround sound systems for movies and music, but can just as well be used as the main loudspeaker for hi-fi stereo systems to give you excellent spatial listening pleasure for your favourite music.
The STARLET is a 3-way speaker which is extremely good value for money. The individual drivers used here have all proved their worth in numerous well-known constructions.
At the bottom end of the frequency range, there is the W 200 S - 8 Ohmfrom the EXPERIENCE V 20, mounted in a 58 litre vented cabinet. The mid- to high-range is covered by the W 100 S - 8 Ohm and DT 94 - 8 Ohm from the ALTO series of speakers.
The impression given by the STARLET is of a solid low-frequency foundation with powerful, crisp bass. The mid-range has a pleasant, unobtrusive sound, and at the higher frequency ranges the STARLETproduces sparkling, clear-cut treble. In a nutshell, the STARLET is an extremely reasonably priced column speaker with a well-rounded tonal character and good power handling capabilities.
SYMPHONIE's sound profile can best be described as very mellow and melodious. The two AL 170 - 8 Ohm 17-cm woofers generate a full-bodied but well-defined bass in their isolated bass reflex compartments that one would not normally expect of a design such as this. Even at the lowest bass frequencies, SYMPHONIE retains its fidelity and produces clear, precise sound even at high volumes.
The highlight of the SYMPHONIE system is the 50-mm G 50 FFL - 8 Ohmmid-range dome. In the mid-range, it is this driver that ensures unbelievably tangible reproduction of the stage arrangement and provides clearer detection of the central (vocalist's) position than that provided by many other systems. Even recordings that are not perfectly spatial come across as well separated from the speakers, thanks to the SYMPHONIE. As a result, longer listening sessions become a source of relaxed long-term pleasure.
In the high-frequency range, the well-known ceramic dome driver, the KE 25 SC - 8 Ohm, is used to good effect and rounds off the overall soundpicture with its silky-smooth sound properties and outstanding linearity.
The VIB 2000 GF is the logical development of one of the most popular column cabinets in the field of D.I.Y. speakers - the VISATON VIB. The concept of the 2-way enclosure in a 45 litre vented cabinet has been retained, but the drivers used are different, and the crossover unit has been reappraised to suit. In the low- to mid-range we have the GF 200 - 2 x 4 Ohm, whose fibre glass cone can produce a big stroke and thus is good for powerful low-range bass even at higher volume levels. The parallel resonant circuit before the low pass unit compensates for the rise in the mid-range of the 200 mm cone drive and guarantees a linear and coloration-free frequency response until the tweeter takes over at around 2.5 KHz. The 18 dB high-pass section links in the 25 mm G 25 FFL - 8 Ohm textile dome unit.
The VIB 2000 GF produces remarkably vivid, precise bass output at the lowest frequencies, linear mid-range sound, spatially separated from the speakers themselves and a smooth, finely sketched high-frequency range.
The ALTO LINE MK II is a slim, 2-band column speaker with two 13 cm mid-bass units and one dome tweeter.
Due to its slim design and the correspondingly small footprint, this model is ideal as a free-standing speaker in smaller rooms.
The spatial separation is well handled by the speakers and can, as a result, produce clear sound characteristics even in "normal" living rooms.
The unusually broad range bass spectrum for a speaker of this size, that remains crisp even at higher output levels, is a point worthy of note.
As a result of its balanced, crisp sound characteristics, and the finely detailed, exuberant high-frequency output, the ALTO LINE MK II can be considered a fully-fledged member of the ALTO speaker family.
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