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Rear fade--possible?
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<blockquote data-quote="maylar" data-source="post: 58117" data-attributes="member: 541144"><p>That'll work fine. Assuming 4 ohm speakers, 1 ohm in sries will drop you about 1 dB, 2 ohms is about 1.7 dB, and 4 ohms is 3 dB. Remember that 1 dB is defined as the smallest change the human ear can detect. The metal case power resistors made by Dale are great for this 'cuz they can be screwed to a heatsink. If you opt for free-air dissipation (no heatsink) then go for a resistor that's 2X the power rating you need.</p><p>An L pad is a fancy potentiometer that maintains a constant impedance to the source. They use 'em in PA systems, but it's overkill for your needs. It would be simpler than trial &amp; error with different resistors tho. The PartsExpress link shows them for reasonable prices.</p></blockquote><p></p>
[QUOTE="maylar, post: 58117, member: 541144"] That'll work fine. Assuming 4 ohm speakers, 1 ohm in sries will drop you about 1 dB, 2 ohms is about 1.7 dB, and 4 ohms is 3 dB. Remember that 1 dB is defined as the smallest change the human ear can detect. The metal case power resistors made by Dale are great for this 'cuz they can be screwed to a heatsink. If you opt for free-air dissipation (no heatsink) then go for a resistor that's 2X the power rating you need. An L pad is a fancy potentiometer that maintains a constant impedance to the source. They use 'em in PA systems, but it's overkill for your needs. It would be simpler than trial & error with different resistors tho. The PartsExpress link shows them for reasonable prices. [/QUOTE]
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Rear fade--possible?
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