Dali Phantom K-60 Ceiling Speaker (Single)

Dali Phantom K-60 ceiling speaker features a six and 1/2” woofer, along with a directional soft dome tweeter that can be adjusted for the best possible sound. The woofer features a wood fibre cone with a low-loss rubber surround. Additionally, the magnet system has a long excursion and the tweeter is wishbone mounted for easy adjustment. There is also a custom back can mounting option. The speaker can handle up to 150 Watts and the frequency range extends from 51Hz to 25 kHz.

Wood fibre cone

The K60’s wood fibre cone provides precise and coherent bass while the midrange is of a high resolution. This speaker is designed to offer hi-fi sound, with a believable soundstage, presenting all the small details in the music. Cone materials range from paper to carbon fibre as well as some plastics. The most important characteristics are stiffness, density and internal damping. Damping is important to prevent resonances at a particular frequency. Wood fibre is a good performer for a celling speaker.

Custom back cans

The Phantom K60 has a custom back can, available for easier fitting, where a back box is not possible. It also enhances the bass response. This is good for rooms with more reverberation, such as bathrooms. Moreover, the K60 is also coated to make it moisture resistant. The back can is no wider than the speaker itself, so it is simple to fit.

Impressive bass

The Phantom K60 produces impressive bass for a speaker of it’s size. There is a large magnet that drives a light and easy-to-drive cone. The cone also has a long excursion. The result is deep and articulate bass. Additionally, the midrange has been tuned to give a rounder sound. Moreover, the woofer is mounted slightly off-axis. This lowers the colouration and distortion. It also allows the tweeter to be mounted closer to the woofer. The result should be less phase shift between the two units. The angled woofer also lets the speaker be angled more precisely.

Tiltable tweeter

The 28mm soft dome tweeter can be tilted to better position high frequency delivery. The tweeter also has an excellent transient response and provides a flat frequency response. As a result, there are no peaks and troughs. Next, the tweeter is mounted in a resonance free, aluminium wishbone bracket. This is adjustable and can be tilted to suit any room position. The enclosure also has tuned mass dampers to stop any resonances and distortion.

The parts of a speaker

Loudspeakers are complex objects made of several parts. The basket is the assembly that holds the cone and magnet system. The cone is also known as the diaphragm and is the part that moves air and generates the sound. The voice coil is mounted to the cone and sits inside a circular gap, inside a magnet. The audio signal is fed into the coil and causes the cone to move. This is known as an excursion. The more the cone moves the louder the sound.

Another important part of a speaker is the spider, this sits behind the cone and ensures that the cone returns to its starting position. The spider also keeps the voice coil in position. Next, a dust cap is placed over the voice coil assembly. This prevents foreign matter from getting into the gap between the voice coil and the magnet. Any dust would cause a scraping noise.

The speaker magnet is nowadays, a permanent type. However, in the early days of radio speakers used an electromagnet. This was driven by the power supply. Various materials are used for the magnet, iron is common but there are also granular materials that have a better performance.