I've owned two different pairs of QUAD 63's and a pair of QUAD 57's and I loved all three sets , and played a lot of rock on all of them. After all, even AC/DC has a midrange.
Actually very little rock has bass below 50Hz and the QUAD's are surprisingly good in the midbass region. QUAD's really are everything everyone says about them. You'll never regret owning a pair, even if you don't keep them. By the way, don't toe them in and do drag them out well into the room. Peter Walker's rule of thirds really works (1/3 of room length, 1/3 of room width). But, eventually, domestic unacceptability of correct placement will make you sell them. Until then you'll have a great listening experience.
Actually very little rock has bass below 50Hz and the QUAD's are surprisingly good in the midbass region. QUAD's really are everything everyone says about them. You'll never regret owning a pair, even if you don't keep them. By the way, don't toe them in and do drag them out well into the room. Peter Walker's rule of thirds really works (1/3 of room length, 1/3 of room width). But, eventually, domestic unacceptability of correct placement will make you sell them. Until then you'll have a great listening experience.