Kenwood eXcelon X503-1 Mono Subwoofer Amplifier – 1000W Peak
Power your bass with precision using the Kenwood eXcelon X503-1, a compact mono amplifier designed to deliver strong, controlled low-frequency performance for serious subwoofer setups. Built on Kenwood’s premium eXcelon platform, this amplifier is engineered for clean power delivery, efficiency, and dependable daily performance.
Ideal for single-sub systems, the X503-1 provides dedicated amplification for deep, accurate bass while maintaining clarity and control at all volume levels.
Key Features
- Mono block subwoofer amplifier design
- eXcelon Series premium audio performance
- 1000W peak power output (efficient RMS delivery for daily use)
- Class D amplifier design for compact size and low heat output
- Variable low-pass crossover for precise subwoofer tuning
- Bass boost control for adjustable low-end impact
- Subsonic filter for improved cone protection and efficiency
- Thermal, short-circuit, and overload protection circuitry
Performance Highlights
The X503-1 is designed to deliver clean, efficient bass power without distortion or strain. Its Class D architecture ensures stable performance while minimizing heat, making it ideal for compact installations and long-term reliability.
With adjustable tuning controls, you can shape your bass response from tight and controlled to deep and impactful depending on your system and listening preference.
Recommended Setup
- Ideal for powering a single subwoofer system
- Best paired with 10" or 12" subwoofers in sealed or ported enclosures
- Works well in factory upgrade or aftermarket audio builds
- Perfect for compact installs where space is limited
Why Choose the Kenwood X503-1?
The X503-1 delivers focused, reliable subwoofer power in a compact design. It’s a strong choice for users who want clean bass performance, simple tuning, and dependable output without the complexity of larger multi-channel amplifier setups.
|
| X503-1 |
|
| Series |
eXcelon |
| Amplifier type |
Class D mono |
| Maximum power |
1,000 W |
| RMS power |
300 W × 1 @ 4 Ω |
| RMS power |
500 W × 1 @ 2 Ω |
| Speaker impedance |
2 to 8 Ω |
| Low pass filter |
Variable, 50 to 200 Hz, 24 dB/oct |
| Infrasonic filter |
25 Hz, 24 dB/oct |
| Bass boost |
40 Hz, 0 to +18 dB |
| RCA input sensitivity |
0.2 to 5.0 V |
| Speaker level input sensitivity |
4.0 to 12.0 V |
| Speaker level input |
Yes |
| Signal sensing turn-on |
Yes |
| Frequency response |
20 Hz and up, upper frequency depends on low pass filter |
| Signal to noise ratio |
100 dB |
| Wired remote |
Included |
| Fuse |
30 A × 2 |
| Power / ground terminals |
M6, supports AWG 4 to AWG 6 |
| Speaker terminals |
M4, supports AWG 8 to AWG 16 |
| Operating voltage |
14.4 V, 11 to 16 V allowable |
| Current consumption |
28 A |
| Dimensions |
8.38" W × 2.06" H × 5.88" D |
| Weight |
3.3 lb |
| CTA-2006-D |
Compliant |
| Connection |
One-side connection |
| Cooling |
Extruded aluminum heat sink |
| Output coil |
Magnetic shielding |
| Capacitors |
PMLCAP high quality capacitors |
