Having moved over to a Squeezebox 3 based system for convenience reasons I now want to make sure I am getting the best out of my music. I am currently running a stock SB3 via analogue outs into a NAD C325BEE and then Monitor Audio RS1 speakers. All my music is lossless but I don't think I am really getting the best out of it from my current set-up and I think the SB3 is probably the limiting factor. I can't pinpoint exactly what is wrong with the sound but it just doesn't sound as exciting as I would like and so I'm thinking that maybe an external DAC would bring my set-up back into the leagues of 'proper' hi-fi. Any advice or experiences? Money is obviously a limiting factor and don't want to spend more than £500 on a DAC, would however consider either new or second-hand at this price point. Have heard many good things about the Beesford TC-7510 but at only £100 part of me thinks this shouldn't be as good as people make out. Could obviously try one out but would be interested in others views first. Have posted this in the hi-fi forum rather than mp3 as I am looking for sound quality as the main criteria.