I have a MET premium and Being a lifetime Metallica fan I want the best sound I can acheive. Ok so anyone out there have any suggestions on how to do premium great quality sound on a pin cost is really not an issue. I have tried FF & PP speaker upgrades wich sound ok just not sound I want both systems have way to much bass and the trebles or " highs" seem to drop out. Pinball sound boards do not have the power needed to accomplish the sound I want out of my pin so I assume have to add an Amp but I really don't want to redesign the wheel hoping someone has already done this and can give me some sugestions