I had some training as a musician, and around Christmas, I hit the streets with my brother to earn some spare money busking. We used to perform acoustically, but we couldn't keep it going for as long as we wanted. When we switched to using a microphone and a proper speaker, we could stay out there for longer and attract more passersby as our music sounded clearer and more professional. This blog has some tips for other buskers looking to buy some audio visual equipment to help increase their music quality (as well as increase the amount of money they make!).