The DALI ALTECO C-1 is truly a multipurpose speaker in both design and function. DALI wanted to ensure that the ALTECO C-1 is usable as both a height speaker 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, Dali have created a speaker that fulfills 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.
The ALTECO C-1 delivers believable height information from Atmos, DTS-X and Auro-3D movies in surround setup - not only when “firing up” using the ceiling as a reflector, but also “firing down” from a position up under the ceiling.
The ALTECO C-1 is able to achieve this even without special equalizing in order to enhance the effects from HRTF (Head Related Transfer Function) technology. A technology found in Atmos certified speakers. Instead the ALTECO C-1 relies only on the height processing done in the amplifier, when selected. Had Dali included non-linear HRTF equalizing in the ALTECO C1, it would have been impossible to use it as a versatile neutral speaker, limiting the use to only an up-firing type speaker.
Designed the way it is the DALI ALTECO C-1 offers the best from several worlds giving you ultimate flexibility and multiple applications.
Frequency Range (+/-3 dB) [Hz]
74 - 25,000 Hz
Sensitivity (2,83 V/1 m) [dB]
Nominal Impedance [ohms]
Maximum SPL [dB]
Recommended Amplifier Power [W]
40 - 100 Watt
Crossover Frequency [Hz]
High frequency driver, Quantity
1 x 21 mm
High frequency driver, Diaphragm type
Soft Textile Dome
Low frequency driver, Quantity
1 x 4.5"
Low frequency driver, Diaphragm type
Wood Fibre Cone
Single Wire (Spring loaded push button)
Recommended Distance From Wall [cm]
1 - 100 cm
Dimensions (HxWxD) [mm]
265 x 160 x 200