My son wants to learn bass. I bought him a Peavey max 126 for bedroom practice. Guitar Center placed a tag on the Max 158 today for the same price. I am considering going back and get it for him and keeping the 126 for me to use in a quiet corner of the house. Is there enough VOLUME difference to do this? It would be better if he had enough volume to play with a couple of friends with guitars (no drums). If there is considerable difference I will go back, if little difference, I am not going to do it and save the cash. The trip is a little over an hour to the store.