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Dali Alteco C-1 Atmos Speakers (Pair)


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Found it cheaper? Click here. SKU: DLIATCO1
Ex VAT: 215.83
This truly multipurpose speaker can fire 'up' or 'down' and delivers realistic height data from Atmos, DTS-X and Auro-3D movies in surround setup.

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Condition:Brand new in original retail packaging

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Warranty length 5 Years
Brand Dali Speakers

Tech Specs

- Freq Range (+/-3 dB): 74 - 25,000 Hz
- Sensitivity (2.83 V/1m): 83.0 dB
- Nominal Impedance: 6 ohms
- Maximum SPL: 103 dB
- Recommended Amp: 40 - 100 Watt
- Crossover Freq: 2,100 Hz
- Crossover Principle: 2-way
- HF driver: 1 x 21mm Soft Textile Dome
- LF driver: 1 x 4.5" Wood Fibre Cone
- Enclosure type: Closed Box
- Connection: Single Wire (Spring loaded)
- Recommended Placement: On-Wall/On speaker
- Recommended Distance From Wall: 1 - 100cm
- Dimensions (HWD): 265 x 160 x 200mm
- Weight: 2.9 kg

Product Description

Dali Alteco C-1 is truly a multi-purpose speaker in both design and function. The perfect fit for adding height information from Atmos, DTS-X and Auro-3D movies to a surround setup or taking the role as an out-of-the-way stereo speaker.


The speaker is able to achieve this even without special equalising in order to enhance the effects of HRTF technology. Instead, it relies only on the height processing done in the amplifier. If the non-linear HRTF equalizing was included, it would have been impossible to use it as a versatile neutral speaker, limiting the use to only an up-firing type speaker.


The angled front and the dual sound modes enable the Alteco C-1 to be used in a multitude of speaker positions. Add height information in any surround setup by either placing the ALTECO C-1 on top of the front or the rear speakers. It can also take the place of traditional front speakers placed high on the wall or horizontal on the side wall. It even offers the perfect angle for close listening in a desktop setting.

Using the switch placed on the front of the speaker to select the down-firing sound mode, the Alteco C-1 can be used as a rear or surround speaker placed on the wall close to the listening position. This is possible because the down-firing sound mode lowers the direction of the sound downwards by 25 degrees.

The Dali Alteco C-1 is a true master of diversity. Giving you the flexibility to effortlessly add height information to you current or new surround system, getting the perfect angle on your rear or surround speakers, or getting music in rooms where the speakers need to be out of the way.

Dual Sound Mode

The unique angular design combined with the dual sound mode enables this speaker to be used in a multitude of different scenarios. Choose 'UP' on the front baffle switch to beam the sound waves either straight out for a soft downwards angle, or by selecting 'DOWN', beaming the sound almost straight down for close position listening.

The angular design of this speaker makes it perfect for up-firing use. Designed the way it is the Dali Alteco C-1 offers the best from several worlds giving you ultimate flexibility and multiple applications.

Dali wanted to ensure that the Alteco C-1 is usable as both a height speaker (Dolby Atmos, DTS-X or Auro-3D) as well as a traditional stereo speaker. By designing the crossover for stereo use and by keeping a strict focus on Dali sound design principles, they have created a speaker that fulfils both criteria. It is the perfect fit for adding height information to a surround setup or taking the role as an out-of-the-way stereo speaker.


Built around a 4½” low loss wood fibre woofer using a mix of low-mass paper cones with wood fibre reinforcement and a 21mm ultra-light soft dome tweeter, the Alteco C-1 brings all of the DALI sound principles to your living room in a unique new design.

The wood fibre cones are a Dali trademark, as well as a proven DALI technology. The Alteco C-1 cone membrane is crafted from a mix of fine-grained paper and wood fibre pulp. This makes the cones very ridged, very lightweight and the unevenness in the structure of the membrane helps minimize unwanted surface resonances.

Combining the well-behaving wood fibre cone with the low-loss rubber surround and spider suspension results in the reproduction of even the smallest micro-detail in the signal – unfiltered and with high accuracy.

The soft dome tweeter offers best-in-class resolution with an extended frequency response, wide dispersion and low colouration. The tweeter is based on an ultra-lightweight weaved fabric, which weighs less than half of the market standard (0.056 mg/mm2).

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