How do I connect another 4 ohm speaker in series or parallel?
I don't know if this is possible or not, but I have a pioneer elite sc05. I currently have seven Polk LSI15 speakers connected to all seven channels, but I would like to connect one more.
I have no idea what series in parallel connecting mean, but is it possible to connect another 4 ohm speaker if the receivers channels are all used up?
I have no idea what series in parallel connecting mean, but is it possible to connect another 4 ohm speaker if the receivers channels are all used up?
Comments
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Skipping right over the begged question Why do you want to do this?!?
Series vs. parallel is simple.
If the speakers to be so wired are identical:
series connection doubles the impedance load seen by that channel's amplifier.
parallel connection halves the impedance load seen by that channel's amplifier.
Two 4 ohm speakers in series = 8 ohm load (nominally)
Two 4 ohm speakers in parallel = 2 ohm load (nominally)
The latter could be troublesome or disastrous depending on the amplifier.
All this being said: Why the heck do you want to do this?!?!?????????
There is no good reason.
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Aside from that....7 lsi15's on one receiver ? Your not hearing anything close as to what those speakers are capable of.HT SYSTEM-
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 -
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Aside from that....7 lsi15's on one receiver ? Your not hearing anything close as to what those speakers are capable of.
We've been getting some weird questions lately.
https://forum.polkaudio.com/discussion/200353/has-anyone-tried-two-pairs-of-front-speakers-does-it-produce-a-fuller-sound-stage/p1
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Aside from that....7 lsi15's on one receiver ? Your not hearing anything close as to what those speakers are capable of.
I don't know if I am, but all of them are in a bedroom setup. the pair of rears are 1 foot behind me, the pair of surrounds are 3 feet next to me, the pair of fronts are 9 feet from me and the last one is in the corner across from the bed to feel in the emptiness.
Given the close proximity of the speakers, they get extremely loud and they sound fine for the room they are in. -
The Pioneer SC05 was only rated for 6 ohm loads unlike later iterations of Class D amplification in Pioneer receivers. Also only has 7 channels of amplification.
Also only had 7.1 channel preouts.
If the purpose is to power width speakers a different receiver that supports processing for width speakers should be considered. It's possible to use a signal splitter from the front preouts to a separate amplifier but that's a hack job at best. The SC05 can't handle that by itself.
The LSi15s have a tweeter that presents a difficult load for amplifiers in most receivers without damage even when properly configured. A different receiver with more preouts to accommodate width speakers, more modern processing, and a separate amplifier would be the right solution. -
The Pioneer SC05 was only rated for 6 ohm loads unlike later iterations of Class D amplification in Pioneer receivers. Also only has 7 channels of amplification.
Also only had 7.1 channel preouts.
If the purpose is to power width speakers a different receiver that supports processing for width speakers should be considered. It's possible to use a signal splitter from the front preouts to a separate amplifier but that's a hack job at best. The SC05 can't handle that by itself.
The LSi15s have a tweeter that presents a difficult load for amplifiers in most receivers without damage even when properly configured. A different receiver with more preouts to accommodate width speakers, more modern processing, and a separate amplifier would be the right solution.
Yes, I'm trying to add a width speaker.
I have had my eyes on the sc75 for awhile.
Hmm....... -
Fortunately receivers that support what you're trying to do exist for not much money now on the used market. Add some separate amplification for the main and center speaker and you'd be set for a long time.
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Fortunately receivers that support what you're trying to do exist for not much money now on the used market. Add some separate amplification for the main and center speaker and you'd be set for a long time.
Yeah I'll upgrade the receiver.
I'm curious though. Do I need an amplifier if the speakers already get very loud and I don't hear any distortion?
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You're probably stressing the multichannel amplifier(s) you have now to the point that their working lives are being shortened. So, my guess would be, yes -- at least eventually.
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You'll get better performance out of the speakers with separate amplification. The Class D amps in the more recent Pioneer receiver models can handle 4 ohm loads without major issues though. Running 8 LSi15s is asking a lot from any receiver but the main front three speakers are the most active.
