Bi-amping my Quad 22L2 towers

Hi folks, been a long time since I posted here, and I have learned a lot on this site since I bought my first set of decent floorstanders in 2009. I have a question that my research into the manuals and other internet sources is not answering. This is likely because my speakers are old and out of production. I was wondering about bi-amping my Quad 22L2s. They are 2.5 way towers, with two sets of binding posts on the back panel, split between HF and LF. I just bought a Jolida 3502s integrated and I am losing some of the pinpoint imaging I get with my Parasound separates (P3 and A23). Wondering about hooking up the Jolida taps into the HF posts, then connecting the A23 to the Jolida using the variable outputs on the back of the 3502s integrated, and running taps from the A23 to the LF posts. This way I still get the tube effect in the pre-amp stage. Would that fry the internal crossover on the Quads? Would I have to open the Quads up and remove the internal crossover and use an external, active crossover to achieve any real benefit? Would this be any different than just using the Jolida as a tube-pre? Thanks in advance.