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How do I go about connecting speakers with different wattage & ohms to the same source?

I have a bunch of old speakers that I wish to use for a project but I'm unsure if they will all work together.

I have:
4 x 60W 10Ω
2 x 20W 6Ω
2 x 25W 6Ω
2 x 5W 16Ω with DC in & component input (out of old computer monitor base)

Will I be able to connect all the speakers to the circuit board with the power & input? What will I need to do or obtain to make them work together?

apple_juicy (author) 3 years ago
I don't really mind if they are different volumes and such. They were taken out of 3 different sets of stereo speakers and each one seemed to have the speakers all wired to the same output (which in my novice opinion would indicate they are possibly all mid-range?). In regards to the top answer, Would A be used for Right & B be for Left or vice-versa? I don't mind if it's mono or stereo but would prefer stereo if it's relatively easy. Thanks for all your help guys.
A and B should be wired in parallel on one side. You build another set of A and B for the other side.

I'll try to post a drawing later.
I don't have any idea what this is going to sound like but there is a good chance that it will sound pretty good.  You should build a speaker box for them or they won't sound good at all.

SPEAKERS-Model.pdf(612x792) 8 KB
apple_juicy (author)  apple_juicy3 years ago
Ok I drew it up & understand what you meant to do.
Re-design3 years ago
Dump the 5 watt speakers or use them for something else.

I assume you will be using these with a stereo and will split them equally, and that the amp is looking for an 8 ohm load.

A.  put a 10 ohm in series with a 6 ohm, 20 w.   A has 16 ohms.

B. put a 10 ohm in series with a 6 ohm, 25 w.  B has 16 ohms.

Put A parallel with B.  You now have a set with 8 ohms.

Do the same with the other 4 speakers.
+1
That work, technically.... but note that the volume will not be evenly divided among the speakers in each set, even if you assume equal efficiency.... and that you'll have to turn the volume up a lot higher than you would with a single pair of speakers to get the same output. Your circuit board may not be able drive all of these strongly enough to do what you want. In which case, you need more amplifiers in the circuit --- and if you're going to do that, you might as well have one small amp per pair and be able to adjust them all for properly matched volume.
lemonie3 years ago

(I've just sucked my teeth and gone "pfthhhhhhhhh").
You probably ought to have multiple amplifiers for this. Re' is right to advise dumping the weedy-ones. But Ohms for speakers is not like ohms for resistors, it shifts with frequency.
Are they all the same type? I.e. bass/mid-range/ high? You could build cabinets with multiple drivers with filters and such, but are you just after maximum volume?

L
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