View Full Version : 4 Side Surrounds?
02-12-2006, 06:06 PM
I am using S4's (direct radiating) as my side surrounds in my 7.1 system, and am thinking of adding another pair, instead of going dipole. The S4's present an 8 ohm load. I was thinking I'd wire the side surrounds in parallel to get a 4 ohm load, and have my Yamaha RX-V2500 adjust the sound level again. The receiver is switchable for 6/8 ohm loads, and the specifications rate dynamic power against 8/6/4/2 ohm loads. RMS power is rated only at 8 ohms.
Has anyone tried this arrangement? Any warnings or advice?
02-13-2006, 12:01 AM
where are you placing them? I cant see them making that much of a difference. do you notice a weakness in the surrounds on your set up, hence what provoked this move? what lead to the decision?
02-13-2006, 09:49 PM
Often the ambient effects "collapse" to a single speaker, and I thought that I could get a more diffuse sound with more speakers, especially if I reversed the phase in them. My surrounds are all at about standing ear level. I was thinking that with two on each side, I could angle them in different directions instead of aiming the singles straight over the back of the couch, which is where they are now.
02-14-2006, 10:02 AM
try it, but wire them in a series, not parralel. your reciever will thank you., it cuts power, but just calibrate accordingly and I can see it being a problem. worse that can happen (with the series wiring) is it sounds horrible and you disconnect it. parralel wiring, with a dip to 4 ohms, could do damage to your reciever despite the ratings.
02-14-2006, 04:05 PM
What do you think about wiring them out of phase? I am thinking just to reverse the wires on the drivers in one speaker per side would do the trick. Could it be done with the speaker cables instead?
03-10-2006, 10:36 PM
I have decided to get a two channel amp to run my extra side surrounds. I'm hoping that an older Yamaha amp will sound enough like my RX V2500. I still don't know if I should wire the second pair out of phase, though.
03-10-2006, 10:44 PM
Note to self......................don't buy used receiver from Bellaire TX.;)
If you want dipoles, buy'em and leave the engineering to the experts.
03-15-2006, 08:00 PM
Try it, and see what it sounds like, it won't hurt anything. And yes, wire them in series, usless your amp is 4 ohm capable at whatever the output of both your speakers are. (My guess would be no) If you wire them in series, it will present a load of 16 Ohms to your amp, and you will get a little less power than at 8 Ohms, but it will still sound fine, and you won't overload your amp.
03-15-2006, 08:08 PM
wouldn't running them in parallel via speaker cable lead to a 16ohm load?
Y-Adapters w/ rca interconnects could be different.
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