In your case the starting point should replace HK receiver by either separates or integrated 2champ. My first integrated amp was Creek 4330R and I believe that this unit is excellent for the monitors or floor standers with small woofer(under 4"). It accommodates passive preamp with power amp in one box. I do not know if this unit is still being manufactured but the price for it is realy suitable for the entry-level budget.
At some stage of audio investing the better source will be more valuable than better amp or even speakers. DAC might be a great idea but you should also consider one-box options that is price-compatible.
At some stage of audio investing the better source will be more valuable than better amp or even speakers. DAC might be a great idea but you should also consider one-box options that is price-compatible.