Akai RPM500, active studio monitor, Power configuration: Bi-amplified, LF Driver size: 5.25 inch (133,3mm), HF Driver size: 1.25 inch (38,1mm), LF Driver amp: 50 Watt, HF Driver amp: 40 Watt, HF Trim, MF Boost, and LF Cutoff controls, Proximity Control for low-end tailoring, Included monitor isolation pad, Integrated radio frequency protection plus magnetic shielding, On/off transient protection and external mains fuse, Output current limiter, over-temperature limiter, and subsonic filter, Flared rear-firing bass port delivers low-frequency depth and definition, Input: XLR, 6,3mm jack balanced, RCA, Enclosure type: Ported, Frequency range: 50 Hz to 30000 Hz, Dimensions: 317 x 256 x 203 mm, Weight: 7,8 kg