Add more speakers lose power?
Hey guys my setup is pair of Polk audio rti a7 speakers powered by a Yamaha PC2002M 240 watts per channel and a Yamaha cx2 preamplifier. My dad gave me some Bose Acoustimass 5 series 3 cube speakers not including the subwoofer. 4 cubes in total. So what I decided to do was run some speaker cables from behind the Polk A7s because behind them they have 2 sets of red and white terminals, 1 set is already been used from the speaker to the power amplifier, leaving the other set free to biwire speakers, but I am not biwiring them I think? What I have done is used the other set of remaining terminals on the A7s and plugged in speaker cable and ran them behind my couch where I have floor stands on each side essentially rear left and rear right and I have 2 Bose cubes on each side. My question is if my A7s are 300 watts into 8ohms and the Bose cubes are 135 watts. But the way I have set them up does it mean my polks are losing power because the Bose cubes are taking the power from them theM? Because the way the Bose cubes are connected behind the A7s? Does that make my A7s lose power going down to only 165 watts?What do you guys think of my setup is it worth doing ? Any issues ? Or does it mean if the Bose cubes are using 135 watts from the polks the Polk will just grab more power from the power amplifier to replace power used from polks? So essentially still staying at 300 watts and the Bose cubes 135 watts no power loss in any speaker ?
Cheers
TONY
Cheers
TONY
Comments
You'll more than likely cook them.
Do not do that.
This ^^^^^^^
Those cubes do not have a crossover in them like a normal speaker would. Their crossover, as stated, is located in that bose subwoofer. You'll cook them in no time.
Also, those posts on the back of the A7's are not meant to run another speaker from. You should have the straps in there connecting the top and bottom posts. One set runs the lower portion of the A7's, the other set of posts run the higher part of the A7's.
Your idea of how power works is distorted to say the least. Pay no attention to those "recommended watts" on the back of the speakers. Please read up a bit on how power works in relation to speakers. You can even do a search here, as we've covered this more times than any of us care to admit.
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SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
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Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
For the time being, leave the A7s alone and do not connect the cubes.
they are not going to be surrounds at all coming off the front L/R speakers
Other; S60'S, M10 series II, M7C's, Hafler XL600 amp, RB-980BX, Parasound HCA-1500 amp , P5 preamp, all in storage. All vintage Polk have had crossover rebuilds and tweeter upgrades.
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D'oh! Missed that. He needs a new AV too.
So if I read this correctly the OP hooked up the cubes directly to the main RTi-A7 speakers and not the AMP.
This over a period will cook the AVR/amp and may cause damage to all the speakers. How much is adding them like this going to add or subtract from the ohm load?
Best thing to do with them cubes is to make flower pots out of them
Family Room:
Samsung UN75RU710DFXZA,
Denon AVR-X4400H, Emotiva XPA3 GEN3
Oppo BDP-93,Sony UBP-X800BM, WD Live HUB.
Main: Polk LsiM 705
Center: Polk LSiM 704C
Front High/Rear High In-Ceiling Polk 80F/X RT
Surrounds: Polk S15
Sub: HSU VTF3-MK5
Bed Room;
Marantz SR5010, BDP-S270
Main: Polk Signature S20
Center: Polk Signature S35
Rear: Polk R15
Sub: HSU STF-2
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Sony 2100ES AVR, Sony DVP-NS3100ES for disc
Cerwin Vega AT-12 (blasters) Advent Prodigy (listening)
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https://geoffthegreygeek.com/how-to-wire-four-hifi-speakers/
Cheers for all the tips and advice so far guys much appreciated.
Tony
FORGET YOU EVER HAD THE IDEA
You CANNOT use those cubes with any other system because their crossover is in what Bose calls a sub, which it isn't. You will fry the cubes if you try to use them in any of the ways you purpose.
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That amp can drive 2 speakers. Nothing more. Period
I do not know what you're trying to accomplish here you have a nice set of speakers in the Polks and you're trying to use the Bose at the same time just what are you trying to accomplish with this arrangement of speakers?
This ^^^
No matter how you slice it up, with the gear you have, forget about the Bose, and forget about adding any other speaker. You want to change the gear, then we can talk about that.
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's
One speaker per out put on the amp. don't try putting speaker of any type in a series. That is just asking for problems. Reason for dual sets of binding post on a speaker is for bi-amping which also is not recommended.
Family Room:
Samsung UN75RU710DFXZA,
Denon AVR-X4400H, Emotiva XPA3 GEN3
Oppo BDP-93,Sony UBP-X800BM, WD Live HUB.
Main: Polk LsiM 705
Center: Polk LSiM 704C
Front High/Rear High In-Ceiling Polk 80F/X RT
Surrounds: Polk S15
Sub: HSU VTF3-MK5
Bed Room;
Marantz SR5010, BDP-S270
Main: Polk Signature S20
Center: Polk Signature S35
Rear: Polk R15
Sub: HSU STF-2
Working Warehouse;
Sony 2100ES AVR, Sony DVP-NS3100ES for disc
Cerwin Vega AT-12 (blasters) Advent Prodigy (listening)
Old sony 12" Sub
Mini tower PC with 400GB of music
H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-
Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc