SA6 is a great example of how single BA transducer can sound great. Though the overall quality (both on sound and build), I believe there is still room for improvement as SA6 is the first IEM for Sleek Audio. The custom porting (VQ system) works well. For people who love a warm, full, detail yet musical sound, SA6 just might be the one for you. To me, SA6 is on the warm side, but not dark. The mid has a full body that is especially good with vocal. The treble (T++ port) reaches quite far and gives enough detail to show some sparkle but not to a point of fatiguing. Bass (on B+ port, pin hole mod) is accurate and fast, though not the best or biggest impact I heard and lack a good resolution on depth, it seems to well suit the full mid. The soundstage is better than most but not the best I heard. All and all, SA6 presents a very musical sound that can easily make most music more engaging. I'll say SA6's sound signature is a combination of all the nice characteristics I'll be looking for in a pair of IEM. As of why it falls short of being the best is because, though SA6 is really good sounding, it can still be a bit congesting on busy passage. I think it is because SA6 still lacks the best resolution and the body of sound to be ranked as the best. With the new price of $200, SA6 are now one of the best value IEM in the market IMO.
Credit: ClieOS, www.head-fi.org (More reviews)
