Damping factor – explained by Hi-Fi World

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This typical example gets the issue of Damping Factor into perspective. Amplifiers commonly have an output impedance of 0.1 Ohms. Loudspeaker cables will add 0.3 Ohms or so, and the low pas bass inductor of a loudspeaker – in this case a World Audio Design KLS9 measures 0.66 Ohms even with a Ferrite core (air cores have higher resistance). The bass unit 'sees' 1.06 Ohms when looking backward to the amplifier, giving a real life Damping Factor value of just 8. All the same, the amplifier still does apply useful electrical damping in subjective terms, our listening tests show.

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