Feature 1It can withstand a range of impedance speakers. 2Can work safely and provide optimal power output. 3Integrated power amplification function, practical to use. 4Quality aluminum alloy material, firm and durable, which has long service life. 5Stable characteristics, professional performance, high reliability.Condition: 100% Brand NewItem Type: Audio Power AmplifierMaterial: Aluminum Alloy Color: As picture shownModel: AQ-660.4GTPower Ferquency: 33KHzDistortion: <0.1%S/N: > 96dBInput Sensitivity: 200mv-6vInput Impedance: 10KOutput Load lmpedance: 2-8Power Supply Voltage: 10-16VBoost: 0-12dBHigh Pass Filter: 32-2kLow Pass Filter: 50-250 HzFrequency Response: 10 - 30K Hz4 Ohms: 65W x 42 Ohms: 100W x 44 Ohms: 200W x 2Applicable Models: Universal .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Audio Power Amplifier1 x Instruction1 Pack of Accessories