Description
Pioneer GM-A4704
The Pioneer GM-A4704 is a 4-channel Class AB car amplifier designed to deliver high-quality audio performance in automotive sound systems. It offers 40W RMS per channel at 4 ohms, 65W RMS per channel at 2 ohms, and 130W RMS per channel when bridged at 4 ohms, with a maximum power output of 520W. The amplifier features a frequency response range of 10 Hz to 70 kHz, ensuring accurate and detailed sound reproduction. Its Class AB design provides a balance between power and efficiency, making it suitable for various vehicle types, including electric vehicles (EVs) and those with start/stop systems. The GM-A4704 is Hi-Res Audio certified, supporting high-resolution audio playback for an enhanced listening experience.
Specifications
AMP FEATURES
| Feature | Specification |
|---|---|
| Bridgable | Yes |
| Class | A/B |
| Grounding System | Negative |
| Power Source | 14.4V (10.8 V to 15.1 V allowable) |
| Protection Control System | Yes |
| Terminal Type | Screw |
| Unit Weight | 4.4 lbs |
PRODUCT PERFORMANCE
| Feature | Specification |
|---|---|
| Allowable Load Impedance | 2 ohm to 8 ohm allowable |
| Avg Current Consumption | 5.5 A x 4-Channel (4Ω), 8.5 A x 2-Channel (4Ω) |
| Continuous Power Output | 40 W x 4-Channel (4Ω), 65 W x 4-Channel (2Ω), 130 W x 2-Channel Bridged (4Ω) |
| Crossover Network Channel | LPF – A/B Ch 80 Hz, HPF – A Ch 40–500 Hz, HPF – B Ch 80 Hz |
| Crossover Network Channel Slope | -12 dB/oct (A/B Ch) |
| Crossover Network Subwoofer Channel | LPF – 80 Hz |
| Crossover Network Subwoofer Slope | -12 dB/oct (A/B Ch) |
| Frequency Response (Channel) | 10 Hz – 70 kHz (+0 dB, -3 dB) A/B Ch |
| Frequency Response (Sub Channel) | 10 Hz – 70 kHz (+0 dB, -3 dB) |
| Fuse Rating | 30 A x 1 |
| Maximum Power Output | 80 W x 4-Channel (4Ω), 130 W x 4-Channel (2Ω), 520 W Bridged (4Ω) |
| RCA Inputs | 4-Channel |
| Speaker Line Input Sensor | Yes |
About The Product
The GM-A4704 4-channel amplifier will greatly improve the sound quality in your vehicle. This amplifier powers your front and rear speakers with 40 watts RMS each, allowing you to hear more of the finer details in your music, especially when you turn up the volume to overcome road noise. With this amplifier, you can run your front speakers with the “A” channels and combine the “B” channels to drive a subwoofer. You can also set this versatile amp to 2-channel mode to send 130 watts RMS each to a pair of component speakers or subwoofers. Additionally, speaker-level inputs allow you to add this amplifier to a factory-installed audio source that does not have pre-amplified outputs.
High-Quality Affordable Design
To prevent poor bass performance in demanding situations, such as heavy bass content or dynamic range music, Pioneer designed a high-quality power supply to sustain constant power requirements. This design enhances audio performance by providing a better signal-to-noise ratio, improved audio dynamics, sustained bass when needed, and, most importantly, a more enjoyable ride in your car!
Automatic Signal Sensing and Turn-On
When used with an audio source such as an OEM source or a receiver without RCA output, the amplifier will activate as soon as an audio source is detected through the speaker level outputs. When using a pre-amplified source (RCA), this Pioneer amplifier will use the signal (+12Vdc) from the “Remote” input for activation.
Variable Filter (Channel A)
The amplifier’s “A” outputs feature a variable high-pass filter (HPF) ranging from 40 Hz to 500 Hz, or a fixed low-pass filter (LPF) at 80 Hz, to precisely adjust the audio bandwidth and optimize the acoustic performance of your speakers and/or subwoofer. These channels are ideal for your front speakers or for bass when the amplifier is used in 2-channel mode with two subwoofers.
Variable Filter (Channel B)
The amplifier’s “B” outputs feature a high-pass filter (HPF) or low-pass filter (LPF) set at 80 Hz to eliminate low frequencies from your full-range speakers or high frequencies from your subwoofer, providing a more natural and pleasant acoustic performance. These channels are ideal for your rear speakers or a subwoofer when the amplifier is used in 3-channel mode.
Reviews
There are no reviews yet.