Description

DALI RUBICON 6

Like the RUBICON 6, the RUBICON 5 is a graceful floorstanding speaker, but has a second 165 mm mid-bass driver. The additional chassis makes the box sound more powerful and controlled. And thanks to the larger membrane area, the RUBICON 6 is able to fill even larger rooms with a voluminous and deep bass.

Before the audio signal coming from the amplifier is converted into audible sounds, it has already come a long way. Since the rule “the shorter, the better” applies to the transmission of electrical currents, the DALI developers ensured an extremely short signal path inside the RUBICON loudspeakers. The crossover is located directly on the back of the connection terminals so that the audio signals supplied via the loudspeaker cable can be distributed to the individual frequency ranges of the loudspeaker chassis as soon as they arrive.

Since the RUBICON series uses very high-quality and broadband loudspeaker chassis throughout, the crossovers can be designed quite simply in the interest of keeping the audio signal as true to the original as possible. The separated signals also reach the drivers over short distances with carefully selected, particularly low-loss cables.

The RUBICON 6 is equipped with connection terminals that also allow bi-wiring and bi-amping connections. The gold-plated terminals accept banana plugs, spade lugs, and twisted-pair wire. The clamps can be fixed with a high torque, since their very fine threads are mechanically extremely precise and thus guarantee a reliable connection between cable and speaker.

SMC MAGNETIC SYSTEM

An undistorted, coloration-free and detailed music reproduction has always been part of the DALI specifications. With the "Linear Drive Magnet System" consisting of the powdered magnetic material SMC ("Soft Magnetic Compound"), it was possible to significantly improve the sound quality in the upper speaker segment.

Transferring this know-how to cheaper loudspeakers proved to be extremely difficult. The intention to make the best possible use of the positive effect of the SMC material and at the same time not to make the structure of the magnetic drive too complicated led to countless experiments. The result was an SMC pole piece covered with a copper cap and encased in a large ferrite magnet. In this way, the advantage of SMC could be optimally used without the effort and costs increasing too much.

The use of SMC brings many advantages, but above all the distortions in the magnetic drive caused by mechanical losses are reduced considerably. SMC's unique ability to combine high magnetic conductivity with very low electrical conductivity enabled us to develop an excellent speaker drive without the disadvantages that we had previously had to accept. The distortions and thus the discolorations in the sound reproduction could be significantly reduced.

HYBRID TWEETER

DALI's hybrid tweeter module combines a fabric dome with a ribbon tweeter and in this way delivers a transparent, detailed and spatial high-frequency reproduction like no other conventional tweeter technology.

The ribbon is a magnetostatic tweeter. Four bands of conductive material form the active membrane, which is controlled by a powerful magnetic field enclosing it. The transmission range of the ribbon extends from 14 to over 30 kHz. Below that, the dome tweeter, which starts at 2,5 kHz, takes over. The extreme bandwidth and the very even and horizontally wide radiation are important features of the typical DALI sound.

LOW-MIDDLE RANGE

Since the SMC magnetic drive developed by DALI produces almost no disruptive distortions, the other components should also be of a similarly good quality. The extremely light and at the same time extremely stable wood fiber cone membranes with their deliberately uneven surface structure come from the same company that also produces the EPICON membranes. The membrane can move very easily like a piston and possible surface resonances are reduced to a minimum. All in all, these measures ensure very detailed and almost coloration-free music playback, even at low volume.

The cone is encased in a soft, low-loss rubber surround, designed from the ground up and custom-made for the RUBICON drivers. The bead guarantees that the membrane can move easily and without loss of energy.

All components are fixed in an aluminum basket that allows maximum air movement around the cone and magnet system. The use of an electrically non-conductive aluminum basket again ensures that the magnetic field around the magnetic drive is not affected.

CASING

Housings made of medium-density fiberboard (MDF) form the solid basis for operating the chassis, which is screwed directly to the 25 mm thick baffle. In order to optimally fix the woofers and integrate them into the housing, the five screws are located exactly in the extensions of the speaker basket. The tweeter module is fixed with four screws to eliminate annoying vibrations and resonances.

Each cabinet provides separate chambers for the mid-bass and woofers. This allows the housing volume to be optimized precisely for the respective chassis and the frequency range it transmits. In addition, there is an individual bass reflex opening directly behind each woofer, which reduces turbulence to a minimum and optimizes the transit times between the woofer and the reflex opening. Several internal braces also prevent unwanted cabinet resonances and sound coloration.

Additional information