How do you control volume? If your amp has a volume control, then it is an integrated amp which means it has a preamp built in.
An HT receiver would give you the option of simulating surround from your 2 speakers. This is hardly a "purist" approach, but some of us like it.
An HT receiver would give you the option of simulating surround from your 2 speakers. This is hardly a "purist" approach, but some of us like it.