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General Discussion
SUB to AMP connection
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<blockquote data-quote="handsome" data-source="post: 1154013" data-attributes="member: 772"><p>The resisters are in series with the signal. Each channel will see the two resistors in series (sum thereof) into the other channel which we can assume is very low impedance (0R) in parallel with the input impedance of the sub. Sub input impedance will be 10k upwards - although 10k is a standard. So each of the outputs will see the sum two series resistors as the total load. This load should no less than 2k (transistors can comfortably drive a 2k impedance) so at a minimum use 1k series resistors. </p><p></p><p>If sub input impedance is 10k then feeding it with a 27k resistor will attenuate your signal by approximately 75% hence you want the lowest value resistors but still high enough for the outputs to drive. Thus a pair of 1k - 2k2 resistors are the most reasonable choice.</p></blockquote><p></p>
[QUOTE="handsome, post: 1154013, member: 772"] The resisters are in series with the signal. Each channel will see the two resistors in series (sum thereof) into the other channel which we can assume is very low impedance (0R) in parallel with the input impedance of the sub. Sub input impedance will be 10k upwards - although 10k is a standard. So each of the outputs will see the sum two series resistors as the total load. This load should no less than 2k (transistors can comfortably drive a 2k impedance) so at a minimum use 1k series resistors. If sub input impedance is 10k then feeding it with a 27k resistor will attenuate your signal by approximately 75% hence you want the lowest value resistors but still high enough for the outputs to drive. Thus a pair of 1k - 2k2 resistors are the most reasonable choice. [/QUOTE]
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Audio and Video Talk
General Discussion
SUB to AMP connection
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