uprights are an adventure to amplify.....depending on the volume you will need.They are miserable to lug around, they require maintenance, and it takes time to build up the hand strength and stamina neccessary to play.Intonation is another issue.Leo did us all an incredible favour when he introduced the Pbass.Having said that....nothing sounds or feels like an upright.They are not for everybody.If you are into rockabilly you will have to get one....there is nothing like watching a great slap rockabilly player practice the craft....