I've had a Musiland MD-10 that sounds about like you're describing (poor).
Then I went to a Benchmark DAC1 USB (Incredibly detailed and much better, although bright).
Then a Bel Canto DAC3 (similiar to the DAC1 as far as being incredibly resolving, still a bit bright)
Then an Empirical Audio Turbo-3 paired with an MHDT Havana NOS tube DAC (much smoother and much more musical).
Now I'm trying a Redwine Audio Isabellina.
So yes, it can be done. Just buy better gear since you get what you pay for (up to a point anyways).
Then I went to a Benchmark DAC1 USB (Incredibly detailed and much better, although bright).
Then a Bel Canto DAC3 (similiar to the DAC1 as far as being incredibly resolving, still a bit bright)
Then an Empirical Audio Turbo-3 paired with an MHDT Havana NOS tube DAC (much smoother and much more musical).
Now I'm trying a Redwine Audio Isabellina.
So yes, it can be done. Just buy better gear since you get what you pay for (up to a point anyways).