Amp wattage can also be used to determine overall amp volume. I think of it this way: if your amp’s volume is at 0, it’s using the minimal amount of power, but if you turn it up to 5, then it’s using half of the power, and turning it all the way up to 10, the amp is using 100 percent of its power. If my amp is rated at 200 watts, and I was powering a 100-watt speaker, then the speakers would probably blow after turning the volume up past 5 or 6 because amps use more of their power at higher volume. The basic rule is, your amp head’s power output, usually indicated by watts, shouldn’t exceed the wattage rating of your speakers. After some research, and forum sleuthing, I came upon this discussion. For us, it was two 80 watt speakers, 160 watts in total if we decided to run both. If you want to salvage the speakers of a busted combo amp, you’ll have to first take note of the speaker’s wattage. I thought amp heads simply worked with any combination of speakers, but that is not the case. I had no idea what an Ohm was, or how many watts a power tube provided and how that corresponded with a speaker’s wattage, not to mention, the type of wiring a pair of speakers used. We decided to salvage the speakers in the old Crate combo and began searching for an amp head that could run two 12 inch, 8 ohm, 80 watt Celestion speakers. And so, our little odyssey of finding a replacement amp began. My younger brother’s combo amp had a mind of its own and often decided to cut the music whenever it felt like it.
But what if the amp is broken? What do you do? This happened to me a few weeks ago. How many times have you plugged your guitar into guitar amps, and it just works? Amps, big or small (and there are some really great small ones), are the foundation of tone.
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