Alpine PMX-F640 – 4 Channel Amplifier
- Amplifier Type: Class-A/B
- Channel Design: 4/3/2 Channel
- Thermal Control: Thermal Management Control
- Power Supply: DC-DC PWM Power Supply
- Power Supply Design: MOSFET Power
- Board Circuitry: STAR Circuitry
- Current Protection: Over-Current, Over-Voltage and Thermal Protection
- Power Indicator: Top Mounted Blue LED Power Indicator
- RCA Output: Gold Plated RCA Input Connectors
- Speaker-Level Inputs: Speaker Level Inputs
- Crossover: Selectable Low-Pass / High-Pass
- Connector Plating: Gold Plated Input, Output, Power and Speaker Terminals
- Pre-Amp Stage: Discrete
- Final Outputs: Non-Fading Pre-Amp Output
- Gain Control: Continuously Adjustable Gain Control
