Phoenix Gold ZQ9004

Specifications

Supply Voltage 11-15V DC
Power Output @ 4 ohm 150W x 4
Power Output @ 2 ohm 230W x 4
Power Output 1 x 460W @ 4 ohm + 2 x 230W @ 2 ohm
Frequency Response 10Hz – 55KHz (-3dB)
Channel Separation 60dB
Signal to Noise Ratio +110dB
Input Impedance 22K Ohm
Input Sensitivity 400mV – 5V
T.H.D <0.05% 
Key Features

4 Channel Power Amplifier
Low-Level Input
Gain Control
LED Power & Protection Indicator
Mosfet Power Supply
Thermal Protection
Two-Layer PCB with Immersion Gold Treatment
Dual Power Supply
24k Gold-Plated Terminals
Nichicon & Wima Capacitors
Toshiba & ON Transistors
Shielded Transformer Cores
High-end Polymer Gain Potentiometers
S/N Ratio above 110dB