hey hey all, need your advice/help!

I'm DJing a house party on Saturday - since it's normal party fare, they don't have a proper speaker system. I have three seperate sets of speakers, each about 8-10" (20 to 25cm) tall (something similar to this) and figured it wouldn't be a bad idea to use 'em all, but the problem is the small audio reciever I use only has outputs for two speakers. Is there any (cheap) way I can get the same stereo output to all six speakers (assuming three right, three left) without getting a new reciever that I'm never going to use? Keep in mind that the only reason I'm using a reciever and not my awesome M-Audio Firewire 410 is because they all use speaker wire and not RCA. I know it's kind of a ghetto idea, but it should work, right?

Any ideas?

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if you have a wimpy reciever it probably doesn't have the juice to drive all the speakers.

you could splice all the lefts together at the ends and then feed that into the left, and the same with all the rights into the right input. That would no doubt sound questionable ontop of the power issue. Thats the only way I can see it being done.

wiring in series will add all the impedences of the speakers straight up, like A+B=C. Wiring in parallel will make the sum of the inverses of all the speakers the inverse of the total impedance or something like that (1/A + 1/B = 1/C -> where C is the total impedance). Its tricky and they can be mixed and matched but you definately have to do the math behind it (even though it may or may not prove to be (un)successful). Tell me the specs of your recievers impedence limit (eg 4-16ohms) and the impedences of all your speakers (eg 6ohms). If you do the math you can find the most efficient way to wire all the speakers while staying within the confines of the amps impedance limit.

I highly recommend you stay away from 3 sets of speakers. Thats just pulling too much from a stereo amp. I'd say 2 pairs max. You'd definatly get the best out of sound quality if you use the single pair though. Test it out, try different pairs, and definatly do a test spin using your finalized speaker set up for at least 3/4 of the time you think you will be spinning to make sure the amp doesn't overheat and just turn off. It happens a lot and I've had friends who've blown amps doing these awkward speaker wiring schemes.

http://www.lalena.com/audio/faq/wiring/

have a look there for the pretty equations and diagrams

u can get wiring that splits a signle RCA into 2. <-- use plenty of these if u want, but it might add noise.

yahh, u might blow ur amps... just try to have another set of amps if possible. Even if they're piddly, to aid ur first one. Like, even a shitty 16W 5.1 channel amp would be fine, just turn the sub on it off if u want.

Try to help that first amp out as much as possible, and hook it into any other amps, before hitting the speaker... That way, u won't have to turn everything up as much. lol... assuming that the little amp can handle the bigger one.... maybe the little one first... bahh... i dunno... ask someone with intelligence.

Or just hire another set of amps. the powerful amp, can power 2 pairs of speakers. and teh weak one can power 1 set of speakers.

that's my advice, though i dont' know much about the sciences behind it.

;-)

Last edited by Abhay on Oct-27-2005 at 08:44

I can make this very easy for you....


Just RENT 2 powered JBL speakers. It will cost you about $50. Have all the people at the party chip in.

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quote:

Originally posted by PersianMafia Tell me the specs of your recievers impedence limit (eg 4-16ohms) and the impedences of all your speakers (eg 6ohms).

The back of the receiver says 6 ohms, but I'm assuming that's per-speaker since both of the speakers it came with were 6ohms each.

Two sets is pretty much a no-go then, eh?

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quote:

Originally posted by retrobyte The back of the receiver says 6 ohms, but I'm assuming that's per-speaker since both of the speakers it came with were 6ohms each. Two sets is pretty much a no-go then, eh?

either stick with 1 set of speakers or get another amp (or hire some speakers)

If you wire speakers in series the impedence is going to be higher and the amp wont output as much power, if you wire them in parallel youll most likely cause damage to the amp.

quote:

Originally posted by PersianMafia http://www.lalena.com/audio/faq/wiring/ have a look there for the pretty equations and diagrams

hey thanks,

that helped me heaps, especially for Car Audio setup.