Model Number: RA100 Brand Name: shiya Key Specifications/Special Features: Features:1.RA series of products using new technology, in particular to strengthen high quality performance and reliability, with 1 U stell case; 2.Smart electronic protection circuit; 3.Multiple detection and protection; 4.In addition to have popular price, Unique EEEngine technology can provide effcient operation, reduce the use cost by reducing AC power consumption and heat generation so as to further cost savings ultimately ModelNo.RA100RA200 8ΩStereoPower 2x150w 2x250w 4ΩStereoPower 2x225w 2x375w 2ΩStereoPower 2x580w 2x680w 8ΩBridge 700w 800w FrequencyResponse 20-20000Hz(±0.3dB) S/NRatio >90dB THD+N <0.03%@8Ω1KHz DampingFactor >400 SlewRatio 20v/uS Height 1U