THE BEST SETUP YOU COULD HAVE FOR BUSKING IS USING 2 PIGNOSE HOG 20 AMPS. ONE FOR VOCALS AND ONE FOR GUITAR OR KEYBOARDS OR WHATEVER. YOU CAN AMPLIFY EVERYTHING THROUGH THE SAME AMP, BUT I HIGHLY RECOMMEND THAT YOU USE SEPARATE AMPS FOR A MUCH BETTER SOUND AND LESS STRAIN ON THE RECHARGEABLE BATTERIES. YOU CAN PLAY SEVERAL HOURS WITH GOOD SOUND ON A SINGLE CHARGE. EACH AMP HAS 2 BATTERIES AND THEY CAN LAST A LONG TIME. JUST KEEP THEM CHARGED WHEN YOU AREN'T USING THEM FOR LONGER LIFE. YOU CAN STACK THE AMPS ON A LUGGAGE TROLLEY FOR EASY TRANSPORT AND KEEP THEM ON THE TROLLEY WHILE YOU'RE PERFORMING. THEY ARE SUPER-LOUD AMPS. DON'T WASTE YOUR MONEY ON ANYTHING ELSE. THE ROLAND BATTERY AMPS ARE ONLY 2 WATTS. GREAT FOR A BEDROOM AMP, BUT RIDICULOUS FOR BUSKING. THE PIGNOSE HOG 20 IS 20 WATTS AND CAN BE HEARD THROUGH LOUD TRAFFIC AND OTHER NOISE. USE AN IMPEDANCE TRANSFORMER TO CONNECT YOUR MICROPHONE TO THE AMP. THIS WILL MAKE YOUR VOCALS LOUD. IT'S JUST A SMALL CONNECTOR DEVICE FOR ABOUT 15 BUCKS. GOOD LUCK AND HAPPY BUSKING!!!!!!!!!!!!!!!!!!!!