I agree with Newbee on his original assessment that the dynamics issue probably lies with the Quad's, not the amplifier. The Quad's are exceptional speakers; however, their few deficiencies are well docuemented. Limited dynamics, as most people define the term, is one of these deficiencies.
I only bring this up because you may be starting down a road that will leave you broke and unhappy. It may be better to enjoy the Quad's for what they are and what they do well, rather than try to make them something that they're not.
That said, if this is really something you want to pursue, and dynamics is your issue, you may want to stay with a pure solid state design. I suggest auditioning the Mark Levinson No. 383 and Jeff Rowland Concerto. I owned Quad's for many years, and always used them with tube gear; however, I have heard Quad's through both of these integrateds, and the matches worked well.
jeff
I only bring this up because you may be starting down a road that will leave you broke and unhappy. It may be better to enjoy the Quad's for what they are and what they do well, rather than try to make them something that they're not.
That said, if this is really something you want to pursue, and dynamics is your issue, you may want to stay with a pure solid state design. I suggest auditioning the Mark Levinson No. 383 and Jeff Rowland Concerto. I owned Quad's for many years, and always used them with tube gear; however, I have heard Quad's through both of these integrateds, and the matches worked well.
jeff