In conclusion, while you can connect a powered speaker to an amplifier, it's not the most advisable thing to do. There are safer alternatives such as using passive speakers or just using powered speakers alone.. Amp tech played music through my Mark V for an hour or so when testing repairs he made. Playing music through cabs (via the amp) is also a way people break in new speakers without having to play an extended period of time.
Thinking about using a headphone amp to drive speakers? Find out why this isn't a good idea, the potential hazards, and which type of amplifier will give your speakers the sound they deserve.. In short, yes you can use a guitar amp as a speaker to listen to music. However, there are a few risks associated with doing so. Guitar amps are specifically designed to output the frequencies an electric guitar produces.