Rear speaker in 5.1: Located on the wall behind the listening point

Front stereo speaker: Located high on the front wall

In-Side Speaker: located horizontally in the corners of the front wall.

Tabletop stereo speaker: integrating into a desktop near-field ecosystem.

DALI ALTECO Features

DALI ALTECO C-1 is a multifunction speaker both in design and functionality. DALI wanted to ensure that ALTECO C-1 can be used both as a height speaker and as a pair of traditional stereo boxes. With a crossover designed for stereo use and maintaining a focus on DALI acoustic principles, the Danish firm has created a speaker that meets both criteria. It's perfect for adding height information to a surround setup, while also serving as a standout pair of stereo speakers.

ALTECO C-1 delivers sound with height information with verisimilitude of Atmos, DTS-X and 3D Audio movies. Not only using up-fire placement, in which they use the ceiling to reflect sound, but also in fire-down mode from positions below the ceiling.

ALTECO C-1 achieves this without the need for special equalization to enhance the effects of HRTF (Head Related Transfer Function) technology. A technology included in Atmos certified speakers. Instead, ALTECO C-1 relies exclusively on the height management process performed by the amplifier once selected. Including non-linear HRTF equalization in ALTECO C-1 would have meant the impossibility of using them as versatile neutral speakers, limiting their use exclusively to up-firing mode.

Designed in this way, the DALI ALTECO C-1 offers the best of several worlds, giving the user the ultimate in flexibility and multiple applications.

DALI ALTECO C-1 drivers

With a 4½” low-loss wood fiber woofer and a 21mm soft dome tweeter as its core, ALTECO C-1 offers all the acoustic principles of DALI in a new and exclusive design.

The wood fiber cones are patented by DALI, as well as numerous and proven technology. The ALTECO C-1 cone membrane is manufactured from a mixture of granulated paper and wood fiber pulp. This results in a very robust, very light cone and an irregular finish that helps reduce surface resonance. 

By combining the good behavior of the wood fiber cone with the low-loss surround and the spider suspension, a reproduction is achieved that covers even the smallest details of the signal, without filters and with high precision.

Situation

The angled front and dual sound mode allow ALTECO C-1 to be used in multiple speaker positions.

Adding height information to any surround setup, placing ALTECO C-1 over the front or rear speakers. It can also replace the classic front speakers located high up or in the corners of the front wall. It also offers the perfect angle for close-range listening in a desktop setup.

The switch on the front allows you to select the sound in down-fire mode, so ALTECO C-1 can be used as a rear or surround speaker by placing it on a wall close to the listening position. This is possible because the sound in down-fire mode reduces the direction of the sound by 25 degrees.

DALI ALTECO C-1 is a true master of versatility. Giving the user the flexibility to effortlessly add height information to surround sound equipment, achieving the perfect angle on rear or surround speakers or bringing music into rooms where speakers can't get in the way.

Low loss

The basic function of any speaker is to convert the electrical signal from the amplifier into a realistic audio experience in the listening room. Any distortion or coloration of the original signal by drivers or enclosures is, by definition, a degradation of sound.

In the audio signal, clarity is achieved through low information loss and smooth, easy-appearing reproduction in both time and frequency.

Using only drivers designed and customized by DALI eliminates the need for frequency correction in the crossover. This allows the Danish firm to design an exact crossover made of high-quality components that guarantees that signal loss tends to zero.

Another basic feature is to reduce mechanical distortion. Something to ensure that the amplifier will not be exposed to greater demands than desired, causing loss of detail in the signal before it has even reached the speaker.

With very low mechanical loss, the faintest details of the sound are maintained, even at low volume levels. This is the only way to achieve the ultimate feeling of transparency and liveliness of the sound reproduced by a speaker.

DALI ALTECO C-1 Specifications

Range: ALTECO HEIGHT SPEAKERS

Frequency range (+/-3 dB) [Hz]: 74 - 26,000 Hz

Sensitivity (2.83 V/1 m) [dB]: 83.0 dB

Nominal impedance [ohms]: 6 ohms

Maximum SPL [dB]: 103 dB

Recommended amplifier power [W]: 40 - 100 Watt

Crossover frequency [Hz]: 2,100 Hz

Crossover principle: 2-way

High frequency driver, quantity: 1 x 21 mm

High frequency driver, diaphragm: Soft dome

Low frequency driver, quantity: 1 x 4.5"

Low frequency driver, diaphragm: Wood fiber cone

Housing type: closed

Input connection: Single Wire (Spring-loaded button)

Recommended position: On-Wall, On speaker

Recommended distance from the wall [cm]: 1 - 50 cm

Size (HxWxD) [mm]: 190 x 160 x 255

Weight [kg] :2.8 kg

Accessories included: Rubber feet, manual

Finishes: Black Ash Vinyl, White Vinyl and Walnut Vinyl

Sale: per pair