It’s a huge benefit sonically to add a separate amp, but often it comes down to what needs to be passed over HDMI as that is generally the biggest impediment to AV Receivers and why it often requires upgrading or changing the receiver out before purchasing a multi channel amp. Also, after getting a new multi channel amp, that will easily lead to replacing the old receiver with a dedicated preamp/processor because though you are bypassing the amplifier section, there are still inherent advantages to having a good pre/pro.
The difference you’ll hear adding the amp will be just as big or bigger when ultimately switching out the receiver to a good pre/pro.
The difference you’ll hear adding the amp will be just as big or bigger when ultimately switching out the receiver to a good pre/pro.