Bi-Amping RTi A3s - power question
I have a new pair of RTi A3s that I plan to drive from a Yamaha RX-V573 A/V reciever. The 573 delivers 115 watts per channel but can be set up in a bi-amp configuration, presumably delivering 230 watts to each speaker. I can see that the RTi A3 supports "20-150 watts per channel" here on the Polk website. My question is if I remove the gold plates on the A3s and wire in a bi-amp design so I have 115 watts going to the tweeter and 115 watts going to the woofer, is that within spec? Or will I be pushing too much power to the A3s...?
Any recommendations?
Any recommendations?
Post edited by gordynor on
Comments
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What they call bi-amping with an AVR is not bi-amping. Some call it passive bi-amping, but it's not even that. I call it ghetto bi-amping.
The 115 wpc rating of your AVR is most likely with only 2 channels driven. The more channels driven, the less wpc you get.
Let's say, in theory, that you are feeding 230 wpc to your speakers, they will be fine.
You're better off removing the jumpers and replacing them with high quality speaker cable.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 -
You won't over-power the speakers, but probably won't notice any sound improvement either. Using the extra channels to run one set of speakers will dropthe power output of the AVR anyway. Probably only getting about 75 watts or so when 7 channels driven vs 115 watts at 2 channels driven.
Have A5's running as mains on the yamaha RX-V571 in 5.1 and they sound better than they did when tried to bi-amp.
Could be just my ears though. -
As the others said it probably will not help any. The problem is most AVRs do not have a power supply which can output enough power to fill all the channels to their max power. In fact most AVRs probably cannot even hit the power for 2 channels they claim. In order to make a PSU and amp which can output alot of power it will weigh alot and you can quickly look at just about any AVR and know just by its weight some ball park of what it is capable of by comparing it to an amp from a vendor known not to exaggerate. And amp that can output 115 watts over 5 channels is probably going to weigh at least double what your whole AVR weighs.
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Having owned the RTiA3s and tried powering them off of an AVR with over 100W/channel - you'll get MUCH better sound by simply getting a better external amp and feed it from the AVR pre-outs.
H9: If you don't trust what you are hearing, then maybe you need to be less invested in a hobby which all the pleasure comes from listening to music. -
I have my monitor70's "bi-amped" to a rx v671, tried it both bi-amp and not bi-amp no difference at all. You will notice a huge difference with an external amp.Speakers Polk Monitor 70's (Cherry) Cs2 (Black)
Subwoofer Polk Psw 505
Receiver/Amp Yamaha RX-V671
TV Samsung 46" LED
Entertainment/Blu-Ray Sony Playstation 3 1TB
Interconnects MIT Terminator 4-Emotiva Speaker Cables, Audioquest HDMI -
Most think that it doubles the power when it doesn't. Manufacturers sure make you think that with their choice of literature.
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Erik Tracy wrote: »Having owned the RTiA3s and tried powering them off of an AVR with over 100W/channel - you'll get MUCH better sound by simply getting a better external amp and feed it from the AVR pre-outs.
"MUCH" better? Really? I'm already in love with the way they sound... Are there any good external amps in the $200 - $300 range that would pair well with these? I have a PSW111 that I use with them (for music) - would the external amp need a sub pre-out or can I still use the pre-out on my AVR? -
Erik Tracy wrote: »Having owned the RTiA3s and tried powering them off of an AVR with over 100W/channel - you'll get MUCH better sound by simply getting a better external amp and feed it from the AVR pre-outs.
"MUCH" better? Really? I'm already in love with the way they sound... Are there any good external amps in the $200 - $300 range that would pair well with these? I have a PSW111 that I use with them (for music) - would the external amp need a sub pre-out or can I still use the pre-out on my AVR?
