Still trying to grok itWhere did the final third go?
This seems to indicate that high Rin on the sub can have some deleterious effect on the subs performance?if Rin of your sub is high enough (say 20K and up) you'll not hear any detrimental effect in your main set of spks (not subs)
^ @Toys4Boys
Other way around... You're sending the signal to two loads in parallel ... At least I think that's the way it works.
If the sub's Rin is particularly low (<20k)... then you've got a possible issue.
I think it's twofold.
Lower input impedance for the sub / higher current from the pre-amp. Pre-amp only has so much oooooomph.
Also... b/c the amplifier you're using for your main speakers is likely something 40k Rin or higher. Think voltage divider. Think if the Rin was 0 on the sub (yes, that's absurd, but it's just a thought exercise) => all the signal would go to the sub. You know the Rin of the speaker amp. His mightiness does too.
tl;dr - If both input impedances are 'high enough' and roughly similar (not orders of magnitude apart) then it's all groovy... I think... maybe...
.... I think ... therefore I am dodo ...
Other way around... You're sending the signal to two loads in parallel ... At least I think that's the way it works.
If the sub's Rin is particularly low (<20k)... then you've got a possible issue.
I think it's twofold.
Lower input impedance for the sub / higher current from the pre-amp. Pre-amp only has so much oooooomph.
Also... b/c the amplifier you're using for your main speakers is likely something 40k Rin or higher. Think voltage divider. Think if the Rin was 0 on the sub (yes, that's absurd, but it's just a thought exercise) => all the signal would go to the sub. You know the Rin of the speaker amp. His mightiness does too.
tl;dr - If both input impedances are 'high enough' and roughly similar (not orders of magnitude apart) then it's all groovy... I think... maybe...
.... I think ... therefore I am dodo ...
Back in the 80's I was at a Sony training on CD technology, the presenter said something to the effect, "We sync (something) to lower IM". I chimed in I sync therefore IM! I crack me up... I think ... therefore I am dodo ...
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