I'm currently using a Cambridge Audio DacMagic with a Marantz DV8400 as transport in my system. The DacMagic is my first experience using a DAC and I'm happy to say it has improved the quality of sound compared to using just the DV8400 as the source. The question I'm looking for input or advice on is whether replacing the Cambridge Audio DAC with a Musical Fidelity A3.24 DAC would be a significant step up in performance? There are several Musical Fidelity A3s listed on Agon at under $500 - which is a price which is appealing to me. I'd just hate to purchase one and have it not perform at a level above the Cambridge Audio. Thanks for any input.