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NA-4.5KM
$439.99
The Nemesis Audio NA-4.5KM is a high-power Class D monoblock amplifier designed for serious subwoofer applications. Delivering up to 4,500W MAX / 2,250W RMS at 1Ω, it provides strong low-frequency performance with adjustable crossover, subsonic filtering, and bass boost controls. The amplifier is also designed for 1Ω operation with over 85% efficiency. The specifications shown on the product packaging are consistent with Nemesis Audio’s current product listing.
Key Specifications
| Specification | Details |
|---|---|
| Model | NA-4.5KM |
| Amplifier Type | Class D Monoblock |
| Channels | 1 Channel |
| Maximum Power | 4,500W MAX |
| RMS Power | 2,250W RMS @ 1Ω |
| Minimum Load | 1Ω |
| Input Level | 0.2V – 5V |
| Frequency Response | 8Hz – 180Hz |
| Signal-to-Noise Ratio | >70dB |
| THD | <0.2% |
| Efficiency | >85% |
Power Output
| Load | RMS Power | MAX Power |
|---|---|---|
| 4Ω | 1,000W | 2,000W |
| 2Ω | 1,500W | 3,000W |
| 1Ω | 2,250W | 4,500W |
Crossover & Bass Controls
| Control | Range |
|---|---|
| Low Pass Filter (LPF) | 40Hz – 180Hz |
| Subsonic Filter | 5Hz – 50Hz |
| Bass Boost Frequency | 30Hz – 80Hz |
| Bass Boost Level | 0 – 12dB |
| Input Sensitivity | 0.2V – 5V |
Performance Features
- Class D monoblock design
- 1Ω stable
- Up to 4,500W MAX output
- 2,250W RMS @ 1Ω
- Adjustable LPF
- Adjustable subsonic filter
- Adjustable bass boost
- >85% efficiency
- <0.2% THD at 4Ω / 30% rated power
- >70dB signal-to-noise ratio
Dimensions
416.5 × 185 × 55 mm (L × W × H)
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