Multiple Configuration Modes
Operate in 4-channel, 3-channel, or 2-channel modes for flexible system building
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$125.47
Multiple Configuration ModesOperate in 4-channel, 3-channel, or 2-channel modes for flexible system building
Variable High-Pass FilterAdjustable frequency control from 40Hz to 500Hz on channels A for precise audio tuning
Bridgeable ConfigurationCombine channels for 130W RMS x 2 at 4Ω for component speakers or subwoofer applications
Automatic Signal SensingAutomatically detects RCA or speaker-level inputs and powers on with receiver
Compact Space-Efficient DesignSmall footprint with one-body heat sink for flexible installation
Speaker-Level InputsCompatible with factory radios without RCA outputs
Versatile 4-Channel Class AB Amplifier With 520W Maximum Power & Variable High-Pass Filter! Bridgeable Design with Automatic Signal Sensing & Multiple Configuration Options The Pioneer GM-A4704 delivers flexible and powerful audio amplification for comprehensive system configurations.
This 4-channel Class AB amplifier produces 40W RMS x 4 at 4Ω or can be bridged to deliver 130W RMS x 2 at 4Ω for component speakers or subwoofer applications. The versatile design allows operation in 4-channel, 3-channel, or 2-channel modes, perfect for powering front and rear speakers or combining channels for subwoofer use.
The automatic signal sensing technology automatically selects between RCA or speaker-level inputs and powers on in sync with your receiver. Variable high-pass filter (40Hz-500Hz) on channels A provides precise frequency control, while channels B feature selectable 80Hz high-pass or low-pass filters.
The high-volt input level control accommodates gain adjustment from 0.3V to 6.5V (RCA) or 3.0V to 26V (speaker level). With compact dimensions and efficient heat dissipation through the one-body heat sink design, the GM-A4704 offers professional-grade performance for building complete car audio systems.
Key Features & Benefits
Class AB Design: Balanced efficiency and performance with minimized crossover distortion for high-quality sound reproduction
Multiple Configuration Modes: Operate in 4-channel, 3-channel, or 2-channel modes for flexible system building
Variable High-Pass Filter: Adjustable frequency control from 40Hz to 500Hz on channels A for precise audio tuning
Bridgeable Configuration: Combine channels for 130W RMS x 2 at 4Ω for component speakers or subwoofer applications
Automatic Signal Sensing: Automatically detects RCA or speaker-level inputs and powers on with receiver
Compact Space-Efficient Design: Small footprint with one-body heat sink for flexible installation
Speaker-Level Inputs: Compatible with factory radios without RCA outputs
| Class AB Design | Balanced efficiency and performance with minimized crossover distortion for high-quality sound reproduction |
|---|---|
| Multiple Configuration Modes | Operate in 4-channel, 3-channel, or 2-channel modes for flexible system building |
| Variable High-Pass Filter | Adjustable frequency control from 40Hz to 500Hz on channels A for precise audio tuning |
| Bridgeable Configuration | Combine channels for 130W RMS x 2 at 4Ω for component speakers or subwoofer applications |
| Automatic Signal Sensing | Automatically detects RCA or speaker-level inputs and powers on with receiver |
| Compact Space-Efficient Design | Small footprint with one-body heat sink for flexible installation |
| Speaker-Level Inputs | Compatible with factory radios without RCA outputs |
Operate in 4-channel, 3-channel, or 2-channel modes for flexible system building
Adjustable frequency control from 40Hz to 500Hz on channels A for precise audio tuning
Combine channels for 130W RMS x 2 at 4Ω for component speakers or subwoofer applications
Automatically detects RCA or speaker-level inputs and powers on with receiver
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