Bi-amping rti A5's?
jeromedayton
Posts: 3
I have Denon AVR-X2300W that has discrete amps per channel and bi-amp capability with crossover setting ability. I also have a Polk Audio PSW350 subwoofer. I want to bi-amp a set of rti a5's. What should I set the crossovers to? 120hz for midrange speakers and 250hz (highest crossover value allowed) for the tweeters?
Comments
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Your AVR has a single shared power supply therefore you cannot bi-amp. That requires separate amps with their own power supply and active crossovers. This is all not to mention the more channels you use the less wpc you get because of the shared power supply.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
^^^^ what he said, and also, 250 Hz is far too low for any tweeter to be crossed.
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Hi Jerome. I know the avr says discrete amps, but that's creative marketing. The wpc will drop signicantly at all channels driven, as low as 34 wpc, thus negating any benefits.
And as for tweeters, 2500 hz is more likely.
If you want more power, an avr with preouts and a separate amp is the way to go.Living Room 2.2: Usher BE-718 "tiny dancers"; Dual DIY Dayton audio RSS210HF-4 Subs with Dayton SPA-250 amps; Arcam SA30; Musical Fidelity A308; Sony UBP-x1000es
Game Room 5.1.4: Denon AVR-X4200w; Sony UBP-x700; Definitive Technology Power Monitor 900 mains, CLR-3000 center, StudioMonitor 350 surrounds, ProMonitor 800 atmos x4; Sub - Monoprice Monolith 15in THX Ultra
Bedroom 2.1 Harmon Kardon HK3490; Bluesounds Node N130; Polk RT25i; ACI Titan Subwoofer -
Well after talking to an EE (from MIT) friend and trying bi-amping, I have to agree with the conclusions above.
I thought because the amp does have active crossovers, that when I bi-amped, I would be able to specify the crossover for the transition from tweeters to midrange/woofer but no such luck. You can only specify the crossover for the subwoofer to the towers. So you gain no real power output as the full signal is sent to both tweeter and midrange/woofer and the passive crossovers strip out the signal they want resulting in the same power being sent to the speakers as in a non bi-amp configuration. And even if I had active crossovers, from what I've read, you really want to disable the passive crossovers (in the speakers) so they don't interfere with the active crossovers. So the only real benefit left is the reduction in back electromotive force introduced by the midrange/woofers resulting in a cleaner tweeter signal. However to these seniager (senior acting like a teenager) ears, there is no discernible difference.
