X303-4Class D 4-Channel Power Amplifier
High-Resolution Audio is high-quality sound that exceeds CD standard. High-resolution audio captures and beautifully expresses all the details of your favorite music. Through ultra-high and low frequencies, immerse yourself in a rich and high-quality sonic experience.
* The product with this logo is conformed to High-Resolution Audio standard defined by Japan Audio Society. This logo is used under license from Japan Audio Society.
Prevents magnetic flux from radiating from the subwoofer's coil, resulting in reduced noise and enhanced sound quality.
PMLCAP's (Polymer Multi-Layer Capacitors) are utilized in the LC filter circuits to decrease distortion, ensuring clear detail for a truer to life sound.
Gauge-style terminals lock wire
into position with set screw for secure installation.
All terminals and connections are on one side for easier installation and a cleaner look.
Speaker Level Input Harness is included to connect to speaker wires from factory installed receivers.
| X803-5 | X503-1 | X303-4 | |
|---|---|---|---|
| MAX POWER | 1600W | 1000W | 600W |
| RMS POWER OUTPUT (4Ω) | 50W x 4 + 300W | 300W | 50W x 4 |
| RMS POWER OUTPUT (2Ω) | 75W x 4 + 500W | 500W | 75W x 4 |
| RMS POWER OUTPUT Bridged | 150W x 2 (Bridged) + 300W | - | 150W x 2 (Bridged) |
| Features | Speaker Level Input | Speaker Level Input | Speaker Level Input |
| Signal Sensing Turn-On | Signal Sensing Turn-On | Signal Sensing Turn-On | |
| Variable High Pass Filter | Variable Low Pass Filter | Variable High Pass Filter | |
| Variable Low Pass Filter | Infrasonic Filter | Variable Low Pass Filter | |
| Bass Boost | Bass Boost | Bass Boost | |
| Wired Remote Included | Wired Remote Included | - | |
| Dimensions | (W)9-3/4" x (H)2-1/16” x (D)6-5/8” | (W)8-3/8” x (H)2-1/16” x (D)5-7/8” | (W)8-3/8” x (H)2-1/16” x (D)5-7/8” |
| Weight | 4.6lbs (2.1kg) | 3.3lbs (1.5kg) | 3.1lbs (1.4kg) |
| CTA-2006-D Value | Maximum Dynamic Power | 65W at 4ohms and ≤ 10% THD + N |
|---|---|---|
| Continuous Power Output | 50W at 4ohms and ≤ 1% THD + N | |
| Signal to Noise | 84dBA reference 1 Watt RMS | |
| Maximum Power Output | MAX POWER | 600W |
| Rated Power Output at 14.4V | A/B (4 Ohms) | 50Watts RMS x 4 (4 Ohms, 20-20kHz, ≤1.0% THD) |
| A/B (2 Ohms) | 75Watts RMS x 4 (2 Ohms, 1kHz, ≤1.0% THD) | |
| SUB (4 Ohms) | - | |
| SUB (2 Ohms) | - | |
| A/B (Bridged 4Ohms) | 150Watts RMS x 2 (Bridged 4 Ohms, 1kHz, ≤1.0% THD) | |
| Specifications | Signal to Noise Ratio | 90dB (Reference: Rated Power into 4Ohms at 14.4V) |
| Frequency Response | 20Hz-50kHz (+0dB, -3dB) | |
| Input Impedance | 10k ohm | |
| Speaker Impedance | 4Ω (2Ω to 8Ω allowable) | |
| Bridged Connection | 4Ω to 8Ω allowable | |
| Audio Section | Low-Pass Filter | A / B |
| Low-Pass Filter | 50Hz-200Hz, -12dB/oct (A/B) | |
| High-Pass Filter | 50Hz-200Hz, -12dB/oct (A/B) | |
| Bass Boost | 40Hz, 0dB - +18dB (Bch) | |
| Infrasonic Filter | - | |
| RCA Input Sensitivity | 0.2[V] - 5.0 [V] | |
| Speaker Level Input Sensitivity | 4.0[V] - 12.0 [V] | |
| Terminals | Battery & Ground | Wire Clamp Type Terminal Block(M6,Nickel Colored）,Hexagon Screw,Capable for AWG4-AWG6 |
| Speaker Output | Wire Clamp Type Terminal Block(M4,Nickel Colored）,Hexagon Screw,Capable for AWG8-AWG16 | |
| General | Dimensions(WxHxD) | (W)8-3/8” x (H)2-1/16” x (D)5-7/8” |
| Dimensions(WxHxD) | (W) 213mm x (H) 53mm x (D) 149mm | |
| Weight | 3.1 lbs ( 1.4 kg) | |
| Operating Voltage | 14.4V（11-16V allowable） | |
| Current Consumption | 19[A] | |
| Key Features | Hi-Res AUDIO Compliant CTA-2006-D Compliant Class D 2 Ohms Load Capability One-Sided Connection Speaker Level Input Signal Sensing Turn-on Terminal Concealing Cover(Resin Mold) Power MOS-FET Switching Power Supply Extruded Aluminum Heat Sink Design |
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X303-4
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