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Hey

At home I have a couple of 8ohm 15watt speakers. They are just sitting around so I thought I might as well turn them into a guitar/mic amp since I'm in need of a new one. I have a circuit that powers a 8ohm speaker at 20watts. It also says it "can be used with a four ohm impedence loudspeaker incidentally, and powers of up to 32watts r.m.s can then be achieved".

Thing is, this only takes into account using 1 speaker. Obviously I want to achieve the loudest sound possible, so I could use 1 8ohm speaker in the circuit and limit the voltage so I only get 15watt (instead of 22watt so the speaker can take it). But is there anyother way that I could combine the two speakers to get a 30 watt speaker? effectively adding the two speakers together?
What would happen if I put them in parralel?

[edit]Sorry for double posting but Im just thinking:

If I connected the two speakers in parralel, there would be an overall resistance of 4ohm so 32watts of power would travel through the speakers. But because there are two in parralel the power through each is half therefore there are 16watts through each speaker which should be acceptable..

Is this correct?

[/edit]

cheers

Two 15 watt speakers have the capacity to move more air than one so I think the linkup is the go.

I would try wiring both the speakers together plugging them in and then testing the max volume it can handle and just resist the temptation to go any louder.(the sound will distort when its overdriven)

Ive often used amps with lower powered speakers.

it shouldnt be a problem that the amp is too powerful for the speakers if you keep the amplitude down.

greater wattage of speakers = greater dynamic range of speakers = more movement of speaker cone.

keeping the volume lower will be the same as having a lower powered amp.

its just if you go over you will damage your speaker cones.

hope that helps