DALI Alteco C-1 is a 2-way Passive Bass Reflex Surround speaker by DALI. It was released in 2024. It features a 0.83" Soft-Dome Tweeter and 1 x 4.5" Wood fibre Woofer.
DALI publishes the driver complement as: 1 x 4½ inch low/mid, 1 x 21 mm soft dome high frequency.
The speaker has a frequency range of 74-26k Hz and a sensitivity of 83 dB.
DALI's Alteco Series of Loudspeakers
Alteco C-1 is a member of DALI's Alteco series of Passive speakers. Below you can see the main specs of these speakers.
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Frequency Response of the DALI Alteco C-1 Speaker
DALI Alteco C-1 has a Frequency response range of 74-26k Hz at ±0.0dB and Power Range of 40-100 watts. With a minimum frequency of 74 Hz, it is hard to expect a strong bass response from Alteco C-1 so depending on your use case, using a subwoofer will significantly help to widen the response range.
Visit our Powered Subwoofers section to find out more about the available subwoofer options.
Here we have a comparison of how Alteco C-1's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Surround Speakers
High Frequency
Surround Speakers
Crossover frequency of the DALI Alteco C-1?
The Crossover frequency of the Alteco C-1 is set to 2100Hz. This is the threshold frequency where the higher frequency signals over this level are sent to the tweeter and the lower-frequency signals are sent to the woofer by the crossover component.
Impedance and Sensitivity
DALI Alteco C-1's nominal impedance level is
6 ohms and has a sensitivity of
83 dB.
Sensitivity
Surround Speakers
Nominal Impedance of the 6 Ohms makes the DALI Alteco C-1 a relatively difficult to drive speaker compared to more frequently found 8 ohms speakers from nominal Impedance perspective.
Sensitivity
With a sensitivity level of only 83 dB, DALI Alteco C-1 is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps.
Browse all integrated amplifiers
Input Type
Alteco C-1 features Binding post type connectors. Bi-amping and Bi-wiring are not possible.
DALI Alteco C-1 External Dimensions and Weight
DALI Alteco C-1 has external dimensions of (Height x Width x Depth) .
Weight
All Surround Speakers
Cabinet type and Materials
DALI Alteco C-1 has a
Bass Reflex type cabinet. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.
Does the DALI Alteco C-1 come with a Grille?
Alteco C-1 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.
Recommended Accessories
Here is a list of accessories that we think you may need for the DALI Alteco C-1.
Official Product Page
Official manufacturer's product page for the DALI Alteco C-1 speaker can be found below:
Official Product Page for DALI Alteco C-1
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.