Harman Kardon TC300 Owner's Manual page 31

Tc series high fidelity car amplifiers

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The TC Series simultanous bridged mono/stereo satellite operation demonstrates this

minimum impedance concept, as these diagrams illustrate:

Improper impedance loading

Len satellite speakers

2-ohm min~mum

Proper impedance loading

2-ohm minimum

If the left and right satellite speakers are 2

now see 1 ohm per channel in the combined

Separating the operating ranges of the

ohms and operated full-range, the amplifier

woofer/satellite operating range, thereby

satellites and woofer with a passive cross-

would see a proper impedance load. How-

eventually triggering the amplifier's

over filter as shown in the above example

ever, if a 4 ohm subwoofer is additionally

protection mode (a 4-ohm bridged load

will provide a proper minimum impedance

bridged across the left and right channels

looks like a 2-ohm load per channel to an

load of 2 ohms stereo above

8OHz

and

without a crossover filter, the amplifier will

amplifier).

4 ohms bridged mono below

80Hz.

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