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Quick Qusetion


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#1 of 7 Mark gas

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Posted November 03 2005 - 03:45 PM

I want to hook up 4 speakers to my Yamaha R-xv 420 receiver, which setup would give nme more power?
Option 1: Running all 4 speakers from the 2 main A channels @ 4 ohms.
Option 2: Running 1 pair of speakers from the A main channels and a second set from the B Channels @ 8 ohms.

#2 of 7 John S

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Posted November 04 2005 - 03:23 AM

I am confused....

Unless you meant to say you want 4 front speakers. Which if so, please explain why? If you want this for a different stereo zone, I'd go with B so you can switch them on when you need them, and off when not in use. On how it works, it would be the same in all likelyhood. 2 speakers on each front channel is going to represent the same load either way.


In the normal use of a surround AVR of course I'd hook them up as 5.1 without a center channel to achieve excellent surround sound.

#3 of 7 BrianWoerndle

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Posted November 04 2005 - 04:32 AM

Neither. The receiver only has a certian amout of power each way. Using the 'B' terminals will split the power in half inside the receiver (if it will let you at all. Some receiver will not allow A and B to be on at the same time.

In either case you will be putting a lot of strain on your receiver and it is not a good idea.

Let us know what you want to accomplish and we might suggest a better solution.
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#4 of 7 John S

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Posted November 04 2005 - 07:13 AM

The reciever is rated to 2 ohms Brian..... I'd say the strain isn't a big deal. These are really quite nice AVR's for the money. They look really awesome in particular, I love that styling. But if your saying there won't be any difference between a parallel connection on A and having A+B selected using A and B terminals then we agree.

Electrically I'd bank it is the same.

#5 of 7 FeisalK

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Posted November 04 2005 - 02:43 PM

you'd think that if manufacturers put a 'B' speaker option they'd stick an amplifier in there to drive it
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#6 of 7 Mark gas

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Posted November 04 2005 - 08:28 PM

Thanx for the info. I want to run 4 fronts for a party. I think I will just run 2 pairs of speakers from the A terminals.

#7 of 7 MikeNg

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Posted November 05 2005 - 04:23 PM

If the AVR is set up to allow 'A+B' configurations, I'd do that instead of 'A' wired in series.

I don't think either will net your more. There's no free lunch.