Supplier & Manufacturer Of Professional Audio Amplifiers We welcome OEM and ODM Premium Sound Quality Affordable, Quality Power Amplification Features CK Series provide extensive protection features such as Overheat short currents, DC protection, zero current, clip limiter, soft startFlow-through ventilation from front to back150W-1100W power area at 8ohms High power toroidal transformerInternal heat sinks with forced air cooling for rapid, heat dissipationDual fans for proper cooling to maintain performance and proper performance levels CK-Series Professional High Power AmplifierModelCK-150CK-250CK-400CK-520CK-800CK-1100Stereo Power8Ω150W250W400W520W800W1100WStereo Power4Ω225W375W600W780W1200W1800WStereo Power2Ω270W500W800W1040W1600W2200WBTL 8Ω450W750W1200W1560W2400W3600WBTL 4Ω540W1000W1600W2080W3200W4400Frequency Response20Hz - 20KHz +0/-0.3dBTHD+N<0.03%@8Ω 1KHzS/N Ratio>90dB>90dB>95dB>95dB>93dB>93dBSlew Ratio20V/ u S20V/ u S30V/ u S30V/ u S40V/ u S44V/ u SDamping Factor>400>400>400>400>300>300Crosstalk>70dB@8Ω 1KHzInput Impedance20KΩ(Balance)/10KΩ(Unbalance)Input Sensitivity0.775V/1.0V/1.4VProtection featuresOverheat short circuits,DC,limit and--softstart,Outputrelay-Zero Current Switch,Intellectual Clip limiterHeight2U2U2U2U3U3UCross Weight21KG23KG26KG27.5KG42.5KG43KGPacking Dimensions590×570×150MM650×585×200MM How to contact us David Liong Sales Manager Choose one of the following options to contact our sales rep Trade Manager Click the"I'm online chat now" to chat with a sales representative in real time right now using the with Alibaba's applicationTrade Manager or Enter a Message Leave a message below with your MSN, Yahoo or Email saying which product you are interested in and our sales representative will get back to you as soon as possible