Model Number: PA1.1 Brand Name: shiya Key Specifications/Special Features: Main Function: 1.Stable performance/ precise workmanship; 2. Low power consumption less than 0.1A when working without load and Zero noise; 3.Built-in High Pass & Low Pass Crossover. Specialized system protection circuit, Comprehensive, safe, reliable & accurate such as Short circuit protect, Over load protect, DC protect,(inrush audio peak) Limiter Soft start, High Temp protect, HF protect, Back-EMF protect ect.; 4.Stereo/ Parallel/ Bridge Modes; ModelNo.PA1.1PA1.3PA1.5PA1.8 8ΩStereoPower 2x800w 2x1000w 2x1200w 2x1500w 4ΩStereoPower 2x1200w 2x1500w 2x1800w 2x2250w 2ΩStereoPower 2x1800w 2x2000w 2x2400w 2x3000w 8ΩBTL 2400w 3000w 3600w 4500w 4ΩBTL 3200w 4000w 4800w 6000w Crosstalk <65dB@8Ω1KHz InputImpedance 20KΩ(Balanced)/10KΩ(Unbalance) S/NRatio >98dB >100dB >102dB SlewRatio 22v/uS 25v/uS 28v/uS 45v/uS DampingFactor >400 GrossWeight 40KG 41KG 42.5KG 43KG InputSensitivity 0.8v/1.6v Protection Overheat,shortcircuits,DClimitedandsoftstart,Outputrelay-ZeroCurrentSwitch,IntellectualCliplimiter FrequencyResponse 20-20000Hz(±0.3dB) THD+N <0.03%@8Ω1KHz PackingDimensions 655x580x200mm Height 3U