I agree with the record spot. Digital sources you're looking at relatively subtle differences. And an ultra budget digital source should still get the fundamentals of pitch accuracy, stability, tonal balance, dynamics right. You're then talking about fairly subtle differences in naturalness and clarity. For analogue sources the source is about equally as important as the speakers. Price and sound quality in analogue sources and speakers are largely independent of each other - so it's not as if you can set some budgetary guidelines for best overall system sound quality. And then there's the amplification. I've heard some not so good amps spoiling what would otherwise have been a fine sounding system.