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Dimensioning cables for passive speakers.

Power cables for not amplified speakers.

Dimensioning of the cables to connect amplifier and speakers considering important factors related to the sound reproduction.
A right dimensioning of these links keeps to aceptable levels the resistance, the inductance, the losses and the resultant damping factor.

Data input
RMS power to transfer to the speaker.

W RMS

From music power : W RMS = W / 2

From peak-to-peak power : W RMS = W / 4

Nominal impedance of the speaker.

ohm

Maximum loss allowed in the cable.

%

Hi-End audio system.

Hi-Fi audio system.

Professional audio system.

Generic background sonorization.

Amplifier output impedance.

ohm

Cables lenght . . . L

m

Wait calculate
Results
Output peak-to-peak voltage of the amplifier. V PEP
Output RMS voltage of the amplifier. V eff
Output current of the amplifier. A
Theoretical cable section. mm2
Total cables resistance. ohm
Real power dissipated by the cables. W
Maximum obtainable damping factor
(real short cables).
Resulting damping factor with the selected cables
(approximate value).

Notes.

Instructions
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Notices