After comparing the sonic virtues of five different brands of audio / video receivers their sonic differences were noticeable but still too marginal considering the application. All the linear solid state models became congested and noticeably fatiguing when pushed past a certain point. If you have any interest in music video your going to push it, so having separate amplifiers is wise. Keep in mind it's expensive to produce a high quality multi channel preamplifier yet, IMO, most modern receivers do a good job.
In your case the brand of DAC's and room correction along with the other features, cost, and most importantly compatibility with the other components may become your deciding factor.
In your case the brand of DAC's and room correction along with the other features, cost, and most importantly compatibility with the other components may become your deciding factor.