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NA-2500X4D
$339.99
The Nemesis Audio NA-2500X4D is a high-output 4-channel Class D full-range amplifier designed to deliver strong, flexible power across multiple speaker configurations. It supports 4Ω and 2Ω operation, along with bridged 4Ω output, making it suitable for high-performance car and marine audio systems. The manufacturer lists the amplifier as a 2500W MAX / approximately 1350W RMS 4-channel amplifier.
Key Specifications
| Specification | Details |
|---|---|
| Model | NA-2500X4D |
| Amplifier Type | Class D Full-Range |
| Channels | 4 Channel |
| Maximum Power | 2500W MAX |
| RMS Power | Approx. 1350W RMS |
| Frequency Response | 20Hz – 20kHz |
| Input Sensitivity | 0.2V – 6V |
| Signal-to-Noise Ratio | >80dB |
| THD | <0.2% |
| Efficiency | >85% |
| Current Draw | 149A |
| Minimum Load | 2Ω |
Power Output
| Load | MAX Power | RMS Power |
|---|---|---|
| 4Ω | 440W × 4 CH | 220W × 4 CH |
| 2Ω | 680W × 4 CH | 340W × 4 CH |
| 4Ω Bridged | — | 1250W × 2 CH |
The detailed power ratings are corroborated by the manufacturer and current product listings.
Crossover & Audio Controls
The amplifier’s front-panel controls shown in the supplied images include:
| Control | Range / Function |
|---|---|
| HPF – CH1/2 | 15Hz – 600Hz |
| LPF – CH1/2 | 50Hz – 4kHz |
| X-Over – CH1/2 | HPF / FULL / LP-BP |
| HPF – CH3/4 | 15Hz – 600Hz |
| LPF – CH3/4 | 50Hz – 4kHz |
| X-Over – CH3/4 | LP-BP / FULL / HPF |
| Gain | MIN – MAX |
| Gain Range | ×1 / ×10 |
| Input | CH1 / CH2 / CH3 / CH4 |
| Status Indicators | Power / Protect / Clip |
Note: The supplied product image shows the physical LPF controls marked 50Hz–4kHz and HPF controls marked 15Hz–600Hz. I have preserved those markings rather than replacing them with different online specifications.
Product Highlights
- 4-channel Class D full-range amplifier
- 2500W MAX power
- 220W × 4 RMS @ 4Ω
- 340W × 4 RMS @ 2Ω
- 1250W × 2 RMS bridged @ 4Ω
- Wide 20Hz–20kHz frequency response
- Adjustable HPF and LPF controls
- HPF / FULL / LP-BP crossover selection
- ×1 / ×10 gain range selection
- Separate controls for CH1/2 and CH3/4
- Power, Protect and Clip indicators
- Input connections for all four channels
- >85% efficiency
- <0.2% THD
Dimensions
19.75 × 7.28 × 2.28 inches
(L × W × H)
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