Wiring 2 speakers in series. - AVS Forum
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post #1 of 5 Old 03-12-2012, 05:00 AM - Thread Starter
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Hi all,

Just wanted to cross check some information I got on another forum.
I have 2 of these babys spare http://www.dansdata.com/m4kit.htm due to an upgrade on my PC audio setup.
I have a Yamaha RX-V663 receiver and wanted to know what the best way would be to wire BOTH up as a centre?

Amp specs
http://usa.yamaha.com/products/audio..._u/?mode=model

Speaker specs
Nominal (RMS) Power:
50 Watts
Impedance:
8 Ohms
Frequency Range:
60Hz-20kHz (-3dB)
Sensitivity:
85dB 1W@1M
Recommended Amplifier:
20W - 80W *

They are about $200 a pair and are well built - I can't bring myself to throw them out but right now they are sitting sadly idle. Your average ebay buyer wouldn't offer more than 30$ for them I'd guess so I may as well use them.

How bad is this idea? Totally terrible or actually practical?
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post #2 of 5 Old 03-12-2012, 05:42 AM
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The main concern will be how to place them to not end up with a comb-filtering machine. Vertical with the top cab inverted is best, horizontal with the cabs on their sides placing the tweeters as close together as possible may suffice. Series wiring them to 16 ohms will give low sensitivity, they may not keep up with the mains. Your amp appears OK with 4 ohms anyway.

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post #3 of 5 Old 03-12-2012, 05:46 AM - Thread Starter
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Quote:
Originally Posted by Bill Fitzmaurice View Post

The main concern will be how to place them to not end up with a comb-filtering machine. Vertical with the top cab inverted is best, horizontal with the cabs on their sides placing the tweeters as close together as possible may suffice. Series wiring them to 16 ohms will give low sensitivity, they may not keep up with the mains. Your amp appears OK with 4 ohms anyway.


The plan was on their side with the tweeters next to each other actually so that's good.
As for your wiring comment, I'm kind of well frankly a newb - parallel or serial? Which is best for the equipment I have (is there a mathematical definitive answer?)

Thanks for your reply, it's really appreciated.
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post #4 of 5 Old 03-12-2012, 07:31 AM
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Quote:
Originally Posted by scottylans View Post

As for your wiring comment, I'm kind of well frankly a newb - parallel or serial? Which is best for the equipment I have (is there a mathematical definitive answer?)

Always run at the lower impedance load if your amp is rated to handle it safely, which in your case is 4 ohms parallel. You'd only series wire for 16 ohms if your amp can't handle 4 ohms.

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post #5 of 5 Old 03-12-2012, 07:39 AM - Thread Starter
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Quote:
Originally Posted by Bill Fitzmaurice View Post

Always run at the lower impedance load if your amp is rated to handle it safely, which in your case is 4 ohms parallel. You'd only series wire for 16 ohms if your amp can't handle 4 ohms.

Thank you again for the response, just so I'm 100% on this, parallel would mean that both positive points for each speaker go to the positive on the receiver and the same for the negative right?



Thank you :-)
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