First of all I apologise if this has been done before. I've searched and found nothing. The other day at band practice I realised that my SVT450H (with SVT210 and 115) isn't as loud as I was expecting. It was my first time playing it with the band and my previous Hartke 3500 was way louder. I had to push this head to it's limit and I still couldn't hear myself. What I wanna know is, is the SVT3PRO louder than the 450H? It has the same power output. I am considering swapping heads to the 3 PRO. The tubes are enticing plus I really really want a rackmount and will need one pretty soon. So in summary, is it worth swapping my 450H for a 3PRO? What's the price difference? (I got mine from overseas so I don't know) I appreciate all the help.