We tested the Dali Rubicon 6 floorstanding speaker!

Dali’s hi-fi products are of high quality, the most important things for the manufacturer are durability, the use of premium parts and perfect sound. The company was founded in 1983 by Peter Lyngdorf and their products are manufactured in Denmark.

Exterior design

Rubicon 6 colours

The Rubicon 6, a passive, floorstanding speaker weighs 20.2 kg and measures 1001 x 195 x330 mm, is available in 4 colours: black, white, light walnut and mahogany. The look of the speaker is extremely demanding, revealing premium quality. The 6-layer MDF housing is polished, there is no complaint about the design, the Rubicon 6 speaker is really amazing. The glossy, lacquered front features a fabric grille to protect the speaker, and the Dali brand logo is visible at the bottom. The rounded shape prevents the formation of standing waves.

Features

Dali. Rub. 6 speaker

The 3-way speaker has a crossover frequency of 2600 and 14000 Hz, an impedance of 4 Ohms, a frequency response of 38 and 34900 Hz, and a sensitivity of 88.5 decibels. Thanks to the high degree of sensitivity, it also works well with lower power amplifiers. It has two cone woofers, one in the 800 Hz frequency range and the other in the 800 to 2600 Hz range. The soft dome tweeter from 2600 Hertz and the ribbon tweeter from 14400 Hz provide the ideal sound for high ranges.

 

The Rubicon 6 speaker has a SMC, or Soft Magnetic Compound drive, which virtually completely reduces distortion. The dome tweeters were designed by Dali, but manufactured by Scan Speak.

Extremely wide speaker

The wider frequency and bandwidth is provided by the light and flexible sound coil. This coil of sound is placed in a strong ferrite magnet, which controls its movement. The ribbon tweeter, along with the soft fabric, is already running at 2.5 kHz. The center and subwoofers were also given separate space. The bass reflex port is located behind the speakers, making the timing between the subwoofer and the bass port ideal.

Rubicon 6 pair-back

The gold-plated metal connectors on the back offer an extremely stable connection. Also replaced by a dual bass reflex port on the back, which promises very respectable power, so the manufacturer recommends placing the speaker at a minimum distance of 20 to 100 cm from the walls for optimal performance and sound.

When placing the Rubicon 6 speaker, be aware that it requires relatively large space. There is a need for air space around it for optimal performance. 4 adjustable pins and rubber feet are also included with the speaker. The pins need to be mounted ourselves, which is definitely recommended as the speaker is quite unstable on the rubber feet. The MDF wood fiber speaker housing guarantees low resonance and vibration resistance. And the unique tweeter setting also reduces resonances and results in extended sound.

Dali Rubicon 6 floorstanding speakers full size

Sound

The Dali Rubicon 6 floorstanding speakers were tested in a home theater where the walls and ceiling had already been acoustically treated. We tested the monitors with a Pioneer SC-LX801 amplifier and a Marantz PM7005 stereo amplifier. We first watched a movie, we started testing with the 2019 sci fi, adventure film Ad Astra, which is produced and, by the way, starred by Brad Pitt. The 3D sound was extraordinary, we got a really wide, realistic stage picture, the sound was smooth and clear. We got detailed and good dynamics during the movie watching.

After that, we also tested the speakers with music. We listened to the current success issue of Tiesto, Business. Purity, balanced mid-ranges – the brand’s strength is its flawless mid-range – sharp, clear high tones characterized Dali’s production. The bass was good too, but to our taste, it doesn’t hurt to use a subwoofer for someone who craves really percussive, wall-shattering deep sounds. Even at high volume, the balance of the ranges was maintained, and the high sounds were incredibly clear and sharp again.

Summary

We didn’t have to be disappointed with the sound of the Rubicon 6 speaker model. It is characterized by amazing clarity, detail, vivid high tones, perfect mid-ranges. The bass also seemed strong enough, though in our opinion we could get even more percussive bass with a subwoofer. The exterior design is elegant and beautiful. These speakers can become the decorations of our room. Premium quality raw materials and components were used in its manufacture. (Dali products are made in Denmark, which is important for quality, as several competing brands make speakers in China, often using cheaper parts.) What can be a disadvantage is the high price and the relatively large space required and the fact that a grille fixed with screws covers the speakers, which is not so comfortable and aesthetically pleasing. But apart from that, anyone who chooses this type can be maximally satisfied with the sound.

The placement of the speakers requires special attention to achieve the ideal sound. Be sure to consider the type, size, and purpose of the speaker. And in the case of Rubicon 6, it is especially important not to place it directly against the wall!

Acoustic treatment should also be considered in the room, as even the best quality audio and hi-fi devices that produce the best sound cannot produce the expected sound, even if the walls, ceiling and other large empty surfaces of the room or studio are not properly treated. Reflections, inadequate reverberation time, disproportionate bass, all result in sound degradation.

Written by Róbert Polgár