Is there a way of lowering the Ohms on a single speaker

Hello All - I'm interested in purchasing a 112 ((1) 12" Speaker) External Cabinet for a Guitar Amplifier. The Best Deal that I could come across has a really powerful, high efficient 12" single speaker - which is Great! The issue is- this is a 16 Ohm Speaker and the Guitar Amp needs a 8 Ohm Speaker. If I hooked it up as it is, I would lose about 30-40% of the watts due to being an 8 Ohm load running through a 16 Ohm Speaker. So, if there was a way of lowering the Ohms to 8 Ohm, it would match better & there wouldn't be any sacrificing of watts. I'm curious if adding something like a resistor or capictor in-line can do this. I'm looking for a $5.00-$10.00 fix - Anything more than $20.00 & I'm better going with another speaker.

Or, would it be easier wiring another speaker (such as a $5.00-$10.00 Tweeter) to allow an inexpensive way of cutting the Ohms in half through the wiring to an 8 Ohm.

Please let me know your thoughts - even if it's just an idea to think about. Thanks!

You would need to put another 16 ohm speaker in parallel with it, however, it will use half of the power, so this doesn't gain you anything. You could also put a 16 ohm resistor of sufficiant wattage in parallel, but then it would use half of your power. I think your best to get the correct speaker or two matching speakers if you must use the 16 ohm speaker. I will say that I don't know a whole lot about audio, but I am basing my answer on simple electrical theory.