The RSM custom in ear monitor is a four-driver, three-way design with 2 woofers, 1 mid-range, and 1 tweeter. It has the power and presence to handle any stage, and the clarity and detail to enjoy while on the bus, plane or easy chair.
“I went to shop for upgrade from my beloved Westone 4. Didn't bother to get custom. Aiming around $500-1000 options Audition candidates 1. Ultrasone IQ $730 2. AKG K3003 $1,140 3. Sennheiser IE800 $ 660 4. Aurisonics ASG-2 $653 5. Heir Audio IEM 5.0+ $ 690 Here are the mini review of IQ and versus of the other candidates. ...” --darkinners