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Alpine X-A70F, X-Series 4/3/2 Channel Power Density Class-D Amplifier - 700W
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CRITICAL EVALUATION OF IN-CAR SOUND
Alpines top engineers from all over the world gathered in Alpine headquarters to deeply research and evaluate sound systems from both the aftermarket and high-end OE manufacturers. Many systems today have incredible dynamic range and reach sufficient volume levels, but lacked the reality of instruments and spatial imaging. As a result, Alpine ID was born, a sound philosophy that continues to inspire us to create a new level of sonic performance.
ALPINE: IMAGE DEFINED
Or Alpine ID for short, is the new Alpine global sound culture with an evolutionary approach for solving whats missing in most car audio systems these days: great spatial imaging and depth of sound stage. It centers on developing matched sound systems with core components that work together to achieve greater realism in the sound stage while maintaining great dynamic range and accuracy.
HIGH PERFORMANCE WHILE RETAINING CLASS-LEADING POWER DENSITY
X-Series amplifiers are built on a new Alpine-proprietary circuit design that achieves class-leading power density and reliability while performing at the top of its class. By simplifying the circuit topology, Alpine is able to ensure the cleanest possible signal path. While the simplicity of the circuit contributes to a great sounding signal, we added an exclusive dual feedback loop that corrects signal distortion. This clever design results in a frequency response that not only meets the Hi-Rez audio standard of 40kHz but even extends up to 60kHz. The amp maintains a very low phase shift throughout the music spectrum which allows your music stay faithful to the original recording with realism that puts you in the center of the performance.
KEEPING THE HEAT DOWN WHILE FAITHFULLY REPRODUCING MUSIC
At the core of the X-Series Amplifiers chassis is a solid cast aluminum heat sink which keeps the amplifier cool when performing at its peak power levels. Excess heat is removed from the amplifier through the newly designed heat sink profile which both improves airflow and increases surface cooling area. The fan-less channels located on both sides of the amp allow for convection flow of air; hot air naturally rises out from the top of the amplifier, which causes a vacuum that sucks in cool air from below. This smart design allows for continuous thermal control for an uninterrupted listening experience.
PROVEN POWER
X-Series Amplifiers come with their very own birth sheet which reveals each amplifiers true power rating.
|
Number of Channels |
6 |
|
Class |
D |
|
Peak Power Rating (Watts) |
|
|
RMS Power Rating (Watts x Channels) - 4 Ohms |
120 x 4 |
|
RMS Power Rating (Watts x Channels) - 2 Ohms |
175 x 4 |
| RMS Power Rating (Watts x Channels) - 1 Ohms | N/A |
| RMS Power Rating - Bridged |
350 x 2 |
| Minimum Impedance Unbridged (Ohms) |
2 |
| Minimum Impedance Bridged (Ohms) |
4 |
| THD at Rated RMS Power |
1% |
| Bulit-in Crossover - Low Pass |
Yes |
| Built-in Crossover - High Pass |
Yes |
| High Pass Crossover Frequency (Hz) |
50-400hz |
| Low Pass Crossover Frequency (Hz) |
50-400hz |
| Signal-to-Noise Ratio |
87dB |
| Bass Boost |
No |
| Bass Remote Included |
No |
| Fuse Rating | 70A |
| CEA-2006 Compliant | Yes |
| Maximum Power Wire Gauge Size | 4 gauge |
| Warranty | 1 Year |
|
Number of Channels |
6 |
|
Class |
D |
|
Peak Power Rating (Watts) |
|
|
RMS Power Rating (Watts x Channels) - 4 Ohms |
120 x 4 |
|
RMS Power Rating (Watts x Channels) - 2 Ohms |
175 x 4 |
| RMS Power Rating (Watts x Channels) - 1 Ohms | N/A |
| RMS Power Rating - Bridged |
350 x 2 |
| Minimum Impedance Unbridged (Ohms) |
2 |
| Minimum Impedance Bridged (Ohms) |
4 |
| THD at Rated RMS Power |
1% |
| Bulit-in Crossover - Low Pass |
Yes |
| Built-in Crossover - High Pass |
Yes |
| High Pass Crossover Frequency (Hz) |
50-400hz |
| Low Pass Crossover Frequency (Hz) |
50-400hz |
| Signal-to-Noise Ratio |
87dB |
| Bass Boost |
No |
| Bass Remote Included |
No |
| Fuse Rating | 70A |
| CEA-2006 Compliant | Yes |
| Maximum Power Wire Gauge Size | 4 gauge |
| Warranty | 1 Year |
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to