nuLine 334

Box type and recommended use

The nuLine 334 is the flagship of the nuLine series. It refines and optimises the best features of this tradition-steeped series. As a result, the nuLine 334 achieves a sound image that is unparalleled in this price and volume class. Despite its acoustical performance, the nuLine 334 is exceptionally slim and elegant, with a width of just 21 centimetres and a height of around 120 centimetres - a characteristic that has already made the nuLine 284 and 264 so popular. Three parallel long-throw woofers, each with a diameter of 18 centimetres, produce powerful and abysmally deep bass down to a lower cut-off frequency of 30 Hertz (-3 decibels). The mid-range is handled by the flat-diaphragm driver with a diameter of twelve centimetres, which has been tried and tested in the series and is distinguished, among other things, by its fine detail and natural voice reproduction. In the upper frequencies, the nuOva silk dome tweeter, which has become the trademark of the series, shines. This complex driver arrangement is driven by an elaborately designed crossover that borrows from the three-way technology of the nuVero series. Together with the intelligent crossover design, the sophisticated chassis combination makes the nuLine 334 a real all-rounder that feels at home in all musical genres and is equally at home with classical music and heavy metal. The nuLine 334 performs with vigour or plays very discreetly - depending on the recording and the requirements. This makes it just as good a choice in a traditional stereo set as, for example, as a front speaker in a home cinema system. Another advantage of the nuLine 334 is its high practicality. For example, it is characterised by a particularly even omnidirectional sound distribution plusminus 30 degrees of the longitudinal axis, but also vertically, which is not a matter of course for a towering three-way floorstanding speaker. In addition, two sound selector switches allow you to adjust the high and low frequency reproduction. This way, the nuLine 334 can be flexibly adjusted to the playing environment or the listening habits of the audience. A great speaker for all requirements! The speakers of the nuLine series are developed in Schwäbisch Gmünd and manufactured according to our specifications at a traditional specialist company for sound furniture construction in Germany.

Construction principle and housing

Three-way floorstanding speaker in bass reflex design. The two bass reflex ports are located at the rear of the cabinet, which is why the speaker should be placed at least three centimetres away from a rear wall. The high sound quality of the nuLine 334 is realised with the filter optimisation of the three-way principle taken from our top series nuVero. In this way, the Nubert development team succeeds in significantly increasing the sound purity of conventional three-way designs, especially in the critical mid-range, while at the same time exploiting the fundamental advantage of a more even horizontal dispersion pattern. The very elaborately manufactured cabinet is made of 19 to 38 mm thick veneered or multi-layer lacquered MDF material and is manufactured by an experienced sound furniture specialist in Germany. It has precisely calculated internal stiffeners and damping elements that effectively reinforce the stability of the already quite solid cabinet walls and effectively prevent sound-damaging natural resonances. To ensure that the rear sound components of the woofers and the midrange driver do not interfere with each other, the midrange driver has its own, acoustically precisely tuned inner cabinet. The elegant solid metal crossbar feet give the speaker a delicate appearance and a stable stand.

Tweeter

In the tweeter range, the proven nuOva tweeter with optimised sound guidance and an elaborately damped rear volume chamber is used. Its acoustically optimised sound front makes it possible to further increase the differences in distance between the dome and the cabinet edges compared to the previous asymmetrical Nubert tweeters, which further reduces the edge dispersion in the axial direction and noticeably increases the clarity in the high frequency range. The asymmetrical arrangement of the tweeters means that a "right" and a "left" speaker is always supplied.

Midrange speaker

As with the sister models nuLine 284 as well as 264, Nubert uses a flat membrane chassis. At the beginning of the development work it was confirmed that flat membranes were more susceptible to disturbing partial vibrations than similarly sized cone membranes. By fine-tuning multi-layer diaphragms, which have a honeycomb structure, it was possible to shift the disturbing natural resonances step by step to much higher frequency ranges, where the radiation is almost completely through the tweeter. Unlike cone speakers, the majority of this optimised midrange driver is flush with the baffle, creating a favourable environment for the adjacent tweeter, which benefits the dispersion characteristics.

Woofer

The nuLine 334 uses a total of three 18-centimetre high-performance bass drivers operated in parallel. This woofer system, equipped with unusually strong magnets, enables an optimum ratio of large diaphragm excursion, maximum bass response and amplifier-friendly efficiency. The result is a heavy-duty long-stroke woofer with a polypropylene diaphragm that can deflect up to 30 millimetres in extreme cases. The six woofers of a pair of nuLine 334 together correspond to the diaphragm area of a large subwoofer, which makes it clear why this speaker has such a powerful bass foundation. Furthermore, the vertical arrangement of the woofers reduces the occurrence of room resonances (technical term "modes") between the floor and the ceiling.

Crossover

The crossover of the nuLine 334 is a masterpiece in itself when it comes to filter technology. Here, the signals arriving from the amplifier are divided into three frequency ranges with particular precision using special crossover technology, while the drivers receive their final sonic polish via sophisticated compensation circuits. In order to realise the typical Nubert quality standards, no less than 52 high-quality components were necessary, including close-tolerance film capacitors in the midrange and treble range. The low crossover frequency at 2.2 kHz frees the midrange driver from higher frequencies and, in conjunction with the deliberately small design, ensures an exceptionally wide dispersion pattern. An efficient protection circuit watches over the safety of the drivers and the crossover. If there is a risk of thermal overload, it cuts the amplifier current and automatically returns to normal operation once the danger has passed.

Switching options

The upper switch between the terminals of the terminal allows a threefold modification of the high-frequency range from "soft" to "neutral" to "brilliant", which allows the speaker to be individually adapted to different living rooms with more or less textile sound damping or personal listening preferences. With the second tone selector switch, the bass level can be moderately lowered. This switch option ensures that an undesired increase in bass level can be compensated for when the speaker is placed close to a wall. By closing one or both reflex tubes, the bass level can be further attenuated. The combination of closing the BR tubes or activating the bass switch thus enables a total of six different sound variants of the bass reproduction.

Connection terminal

The extremely solid, gold-plated screw terminals of the bi-wiring terminal are also suitable for cables with a very large cross-section. The terminal screws also allow for optional speaker cable connection with banana plugs or nuCable Exclusiv. Bi-wiring terminals allow the tweeter and low/midrange to be connected separately to the amplifier. A measure that can prevent sound loss with long cable lengths. In addition, the sound selector switches described above are located on the terminal.

More info in Technology

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