The HDMI failure is huge and may not be worth the repair cost.
It seems your main sonic complaint is dynamics. After you decide whether to go with separates or a new receiver my first thought would be to ad a subwoofer. A sub would take a great deal of load off a receiver.
I too have a separate two channel and I find the fidelity from my 7.1 Pioneer class D receiver, Triangle Comets, sub setup, quite entertaining. Compared to my previous Integra A/B receiver the switching amps do not congests at high volumes.
It seems your main sonic complaint is dynamics. After you decide whether to go with separates or a new receiver my first thought would be to ad a subwoofer. A sub would take a great deal of load off a receiver.
I too have a separate two channel and I find the fidelity from my 7.1 Pioneer class D receiver, Triangle Comets, sub setup, quite entertaining. Compared to my previous Integra A/B receiver the switching amps do not congests at high volumes.