The RM-05 5-inch professional active reference monitor with HD coaxial driver units are the perfect solution for professional producers. These speakers are packed with pro-audio technology to deliver a high SPL and a neutral sound with clear separation across the frequencies - making them the ideal companion for near-field studio monitoring of high-res sounds. On top, this monitor is equipped with custom-designed class AB bi-amps to ensure balance across the frequencies and an exclusive toroidal transformer power source that guarantees excellent S/N ratio and no distortion. Last but not least, a clip indicator on the front of the speaker protects the unit from excessive input. Unique HD coaxial driver units inherited from Pioneer's pro-audio brand TAD make sure that audio from the tweeter and woofer emanates from the same point for a more accurate sound and better response across the frequencies The 1.5-inch aluminum hard domed tweeters are especially designed for added frequency response Pioneer's patented AFAST technology ensures clear and high-quality audio reproduction