Increased HF Detail - You"ll experience greater depth and ambience in recordings. Subtle details can be heard, even in a dense mix. * Room-Friendly, Broad Sweet Spot -3-Series speakers deliver neutral sound across an unusually large working space regardless of room acoustics. This means you don"t have to be right in front of the speakers to make accurate adjustments to your mix. * 3 Series efficient Class D Amplifiers provide abundant power to deliver the output and dynamic headroom needed for the most demanding production styles * The impressive performance of the 3 Series Reference Monitors is the result of JBL"s development of its flagship M2 Master Reference Monitor.