Seeing as this is the only black module among the Asius technologies ADEL modules, I dub thee....METAL module. |,,| I was on the verge of selling my A12's because the sound was simply too veiled, dark, clarity was lacking, mid bass was overpowering and the treble was recessed. Mid bass bled into other frequencies and made the CIEM sound cluttered and unclear. It seems as though Asius listened to it's customers, around the same time we all started complaining about this, a new module called B1 was released that solves all these issues. No more is my A12 veiled, distant and cluttered. Now it's open, spacious and the treble returns to the stage after being shut out by the mid bass bump caused by the S1 module. The treble is allowed to shine and seems closer to the user whereas before with the ADEL S1 module it sounded like the treble was emerging out of some distant dark cave, a veiled whine of what it should be. Sub bass is also reduced in addition to mid-bass. Soundstage also increases. One of the tracks I use to test soundstage is Pink Floyd's Money off the SACD version. The soundstage is wider with the B1 vs the S1 module, the sounds of the cash register in Money seems to be coming from a place further outside my ears and head with the B1 module than the S1. If you're a metal head, this module sounds great with. metal. IMO it sounds better than S1 in every way, unless you're a bass head that loves excessive sub bass and overpowering mid bass.