If you're thinking about changing the sound of your guitar, there are several things you could do, including something you probably hadn't thought of yet: swapping out the speaker of your amplifier or speaker cabinet.
10 or 12-inch Speakers for Combos and Cabinets
As the last link in the chain, the built-in speaker of your amplifier or speaker cabinet has quite a significant influence on the sound of your guitar. In turn, the sound of each speaker is determined by the mix of low, mid and high frequencies it produces; by the way it responds to high and low volume levels; and by its sensitivity, which refers to the amount of volume it can generate in relation to its power capacity. If you're going for a different speaker, be sure to grab one that has the same diameter as your current speaker. You can get 10, 12 and even 15-inch speakers. Or maybe you're looking for a new Bass Guitar Speaker or other Amplifier Parts & Accessories?
16, 8 or 4-Ohm Speakers for Your Guitar Amplifier or Speaker Cab
While you're free to mount a different type of speaker of either the same or a different make, you will have to pay attention to the impedance of your new speaker(s). Check whether your old speaker is a 4, 8 or 16-Ohm model and make sure that its replacement has the same impedance. In the best possible scenario, mismatching the impedance with your amp or cab will lead to seriously bad sound while, in the worst case scenario, it will cause irreparable damage. The same goes for the power capacity: always ensure that the new speaker can handle the power (in Watts) that your amplifier produces, or else you'll risk damage at higher volume levels.
