[chalmersiv]

How to wire 3 sets of 8 ohm  advent speakers to a amplifier ??????

[Bob in St. Louis]

That isn't enough information to give you a solid answer, but check out this page:
http://www.bcae1.com/spkrmlti.htm

It's tailored for cars, but the principles of "Ohm's Law" doesn't change.

Good luck, and rock on. 

[KenSeger]

What amplifier are you using?

Series would present a nice safe boring 24 ohm impedance.  Parallel would present a white knuckle 2.667 ohm impedance.  This assumes the speaker in question is truly 8 ohms of impedance at all frequencies.

The only speakers that I know of that do NOT have peaks and dips in in their total impedance as a function of frequency are Magnepans.
If your amp tends to leak smoke on a load of less than 4 ohms of impedance, parallel is out.
If your amp tends to leak smoke on a load of less than 2 ohms of impedance and *IF* the Advents have a dip of less than 6 ohm, parallel is still out.
You can wire three speakers and one 8 ohm load resistor in series-parallel or parallel-series for an 8 ohm load, but 25% of your power will go up as heat.  Which is better than having your amp go up in flames, or just going into shut off mode if the safety circuits work properly.
Ken

[chalmersiv]

thanks.....the 8 ohm resistor looks to be the answer until I find the 4th set of speakers ....

[bpape]

Or, you can wire 2 pair in series, then parallel those to the 3rd pair.  If 8 ohm starting point you end up with 12 ohms.   

Bryan

[KenSeger]

Or, you can wire 2 pair in series, then parallel those to the 3rd pair.  If 8 ohm starting point you end up with 12 ohms.   

Bryan

Uh? you lost me.  Two 8 ohms in series = 16 ohms.  16 ohms in parallel with 8 ohms = 5.333 ohms.
Ken
P.S. in the 2 series paralleled with one, when each of the two in series get 1 watt each, the single unit in parallel would get 4 watts.  If this is for 'stacked' advents, I'm not sure, but I think the results would be weird???

[Donald]

Not totally purist approach, but another option would be to buy a speaker selector switch with impedance protection and volume controls in the event you wish to have different volumes in different speaker locations.

[mjmsound]

Take the guess work out of it and play it safe, buy some amplifiers! 

[daves]

Or throw away some speakers.