I bought the Corda Jazz as a gift for a family member. I am trying it out with my own equipment for a few days before I gift it.   Overall Sound Impressions:   Long story short: Excellent sound quality. Beats anything I've heard in the same price range (although admittedly limited to a few other head amps). No noise, no overtones, no drama, no artificial adjustments. This can always be debated, but it was transparent enough for me to notice significantly changes between different settings on my source, different headphones, well recorded vs...