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Originally Posted by 20Sunfire05 I have a similar question. Would bi-amping from my HU with passive crossovers be acceptable? I am on a budget and I want to build my system slowly and carefully. |
Not sure what you mean by that. The only way would be to run the front HU speaker ouputs thru the passive high pass to the tweets and the rear HU speaker outputs to the passive low pass to the midwoofer. Is that what you plan do to? That would work.
But again not ideal. you will only get a bit of benefit from this. Some decks do have build in cross overs so that you can do this properly. Alpine 9813 type comes to mind. Others are available to.
But honestly there are tons of electronic cross overs on ebay for under $100. It is worth it iif you have external amps. There is no way that I know of to use an external electronic crossover with the internal HU amps.
Keep in mind that with external passive crossovers before after the amp, the low frequencies will still cause the high frequency amp to clip. They are still there in the signal. Now since the amp sees no speaker load at those low frequncies there is less current draw and therefore less power supply voltage pulldown or output transistor distortion. But really diminishing returns.
This topic has been covered before in this forum with some good links for a more technical explanation of the advantages of biamping with electronic crossovers.
