“Bring over your amp” is the kinda request that you normally can only make of a good friend–like a friend who you once sucked the scorpion venom out of his hairy neck mole for. If you did that for him, the least he can do is lug that monstrosity over to your place for the monthly jam session. But now, thanks to the Yamaha THR, your venom-sucking days are over. The THR delivers rich, deep tones and wake-the-neighbors volume via Yamaha’s exclusive Virtual Circuitry Modeling (VCM) technology, all in a compact retro-styled case that no 98-pound weakling can balk at.  Factor in some fun effects controls and the ability to run it via batteries and you’ve got a guitarist’s new best friend–just without the sucking power.