Thank you in advance for time and attention. Lets assume for a while that amps like the Ampeg B15N, &F, SVT, Acoustic 360 and several other amps from that era were/are what many would call classics. I belive this is beecause of the durabilty and sound (granted old by current standards). Which amps are the new classics? I know it's a guess at best and simply is an opinion. Thank You, Wesley R.