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Has Anyone Ever Run TWO Identical Pairs of Speakers ?

I’m considering buying an extra pair of tower speakers identical to the ones I currently own. I would wire them as 4 ohm speakers powered by about 250wpc,

Each set of two speakers would be placed next to each other so there would be 2 identical left channel speakers and 2 identical right channel speakers, with each pair separated by about 1/2.” 
My listening chair chair can be as close as 8’ from the “center” of the speakers to as far back as 20’ from the “center” of the speakers.

And the actual distance between these two seperate pairs of speakers could range from 6’ from each pair to as much as 18’ for each pair. I would of course spend a great deal of time ‘dialing” them in for the best sound.

Has anyone ever tried this, and what were your results?

I’d appreciate your collective informed thoughts.




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william53b's avatar
william53b
211 posts
 
Depending on their height, you should really try three, much better results. The line array thing.
knighttodd's avatar
knighttodd
209 posts
 
I use two separate speaker pairs. ML Motion 60 XTI and GE Triton Reference. I also run them through two separate Amplifier's. PL EVO 400 and Parasound A21+. The music is fantastic no matter what you are listening to. Clear, detailed no crossing of frequency. Bass is tight and accurate. You can hear everything that is being played in the band, and vocals are perfect.  70- 80 DB is all you need. All of my friends say it's some of the best sounds they have heard. A couple are musicians and DJ's. Bottom line is your building your system for you. If you like it it's all good. Even at 90- 100db the sound is awesome. 
fiesta75
1,378 posts
 
pedroeb - Sorry, you need to check Ohm's law. Parallel will halve the nominal 6 ohms to 3 ohms. Series will make the load 12 ohms. As for your comment on THD, maybe, but not necessarily. Also series speaker connections are not recommended by anyone I know. The best way to connect multiple speakers if your amp can't handle the lower parallel impedance is series/parallel, but you'll need 4 speakers per channel. Good luck.
raysmtb1's avatar
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raysmtb1
802 posts
 
Knihttodd# thank you for putting into words what I was having a hard time saying. It really does have a wonderful way of filling the room is the best way to explain it. Some are you audio filers Out ther should live a little and give it a try
audiokinesis
2,750 posts
 
Fiesta75 wrote: "Also series speaker connections are not recommended by anyone I know."

Well, you don’t know me, but I recommend (and use) series speaker connections in situations where it makes sense to do so, which of course depends on the specifics.

Many years ago JBL published a white paper with misinformation about series-wiring loudspeakers, stating that doing so degraded the electrical damping (Qes). Since JBL was the source, that misinformation has gone largely unchallenged and become audiophile folklore. Adding a resistor in series with a woofer WOULD degrade the effective electrical damping, but adding another driver in series DOES NOT because the BL of the first driver is ALSO added. Double the resistance AND double the BL, and Qes stays the same.

Duke
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