JBL Professional Studio Monitor, 5" Speaker (LSR305) See the next-generation JBL 305P MkII studio monitor for the latest in top-quality sound Increased HF Detail: You'll experience greater depth and ambience in recordings. Subtle details can be heard, even in a dense mix. Room-Friendly: This means you don't have to be right in front of the speakers to make accurate adjustments to your mix. Broad Sweet Spot: 3-Series speakers deliver neutral sound across an unusually large working space regardless of room acoustics. The impressive performance of the 3 Series Reference Monitors is the result of JBL's development of its flagship M2 Master Reference Monitor