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Strange Volvo wiring
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<blockquote data-quote="Jimi77" data-source="post: 8842546" data-attributes="member: 673702"><p>I was repairing amps 30+ years ago and car audio amps were rated at 4 ohms and quality ones could handle 2 ohm loads. </p><p></p><p>You can fade front to rear, but you cannot fade them - you can't fade rear to front??? </p><p></p><p>Your impedance calculation is wrong. Because the tweeter has a crossover (aka cap) and the midbass driver has impedance rise, you are at 8 ohms on the front channel. I assume the rears aren't wired parallel to the fronts or you wouldn't be able to fade to the rear. The resistor would (presumably) be in the circuit to attenuate the driver, but 3 ohms on an 8 ohm driver = ~1db of attenuation, which is really odd.</p></blockquote><p></p>
[QUOTE="Jimi77, post: 8842546, member: 673702"] I was repairing amps 30+ years ago and car audio amps were rated at 4 ohms and quality ones could handle 2 ohm loads. You can fade front to rear, but you cannot fade them - you can't fade rear to front??? Your impedance calculation is wrong. Because the tweeter has a crossover (aka cap) and the midbass driver has impedance rise, you are at 8 ohms on the front channel. I assume the rears aren't wired parallel to the fronts or you wouldn't be able to fade to the rear. The resistor would (presumably) be in the circuit to attenuate the driver, but 3 ohms on an 8 ohm driver = ~1db of attenuation, which is really odd. [/QUOTE]
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