Skip to navigation
Skip to main content 
NA-K7500D
$1,999.99
The Nemesis Audio NA-K7500D is a high-power 1-channel Class D monoblock amplifier from Nemesis Audio’s Korean Team Series. It delivers 7,500W RMS at 1Ω, with 5,000W at 2Ω and 2,500W at 4Ω, while supporting up to 15,000W RMS of strappable power at 2Ω. It is designed for high-output subwoofer and competition-level audio systems. The supplied box specifications are consistent with the current manufacturer listing.
Key Specifications
| Specification | Details |
|---|---|
| Model | NA-K7500D |
| Amplifier Type | Class D Monoblock |
| Number of Channels | 1 Channel |
| Series | Korean Team Series |
| 4Ω RMS Power | 2,500W × 1 |
| 2Ω RMS Power | 5,000W × 1 |
| 1Ω RMS Power | 7,500W × 1 |
| 2Ω Strappable RMS Power | 15,000W × 1 |
| Frequency Response | 10Hz–250Hz |
| Signal-to-Noise Ratio | 95dB |
| Damping Factor | 400dB |
| Efficiency | 90% @ 4Ω, 100Hz |
| Input Sensitivity | 6V–0.2V |
| Working Voltage | 10–16V |
Crossover & Bass Controls
| Control | Specification |
|---|---|
| Subsonic Filter | 10Hz–50Hz @ 24dB/Oct |
| Low Pass Filter | 35Hz–250Hz @ 24dB |
| Bass Boost | 0–9dB @ 45Hz |
| Phase Control | 0–180° |
| Strappable Connection | Yes |
Connectivity & Features
- Audiophile Grade Tiffany RCA Input & Output
- 0 Gauge Power & Ground Input
- Strappable connection
- Remote gain control with clipping indicator
- 4-way protection circuits:
- Thermal protection
- High & low voltage protection
- Short & DC protection
- Tested voltage: 14.4V
- Tested THD: Less than 1%
- Made in Korea / Korean Team Series
Product Highlights
- 7,500W RMS @ 1Ω
- 5,000W RMS @ 2Ω
- 2,500W RMS @ 4Ω
- 15,000W RMS strappable @ 2Ω
- 1Ω stable high-power operation
- 90% efficiency
- Adjustable subsonic filter and LPF
- Adjustable bass boost and phase control
- Heavy-duty 0-gauge power connections
- Competition-level Class D design
Dimensions
788 × 220 × 68 mm (L × W × H)
Related products
NA-1500X4D
In stock
Buy nowThe Nemesis Audio NA-1500X4D is a powerful 4-channel Class D amplifier designed for multi-speaker car audio systems. It provides 100W RMS × 4 at 4Ω, 130W RMS × 4 at 2Ω, and supports bridged operation up to 750W × 2 at 4Ω. Its compact chassis makes it suitable for installations where space is limited.
FIERCE-3.5KD
In stock
Buy nowThe Nemesis Audio FIERCE-3.5KD is a high-output Class D monoblock amplifier designed for powerful subwoofer applications. It delivers up to 3500W MAX / 1750W RMS at 1 Ohm, with strong output at 2 Ohm and 4 Ohm loads. The amplifier also features adjustable crossover control, bass boost, a wide gain range, and an included bass knob for precise low-frequency tuning.
NA-FR1800D
In stock
Buy nowThe Nemesis Audio NA-FR1800D is a high-powered 1-channel Full-Range Class D amplifier delivering up to 1,800W RMS at 1 Ohm. It provides strong output at 4, 2, and 1 Ohm loads, along with variable high-pass and low-pass filters, adjustable bass boost, and built-in protection for reliable performance. The specifications below match the product specification label and are also confirmed by the manufacturer.
NA-2.5KD
In stock
Buy nowThe Nemesis Audio NA-2.5KD is a high-output Class D monoblock amplifier delivering up to 2,500W MAX / 1,176W RMS at 1 Ohm. It is designed for powerful low-frequency applications, with adjustable LPF and subsonic filtering, bass boost control, and a compact chassis suitable for high-performance car audio installations.
NA-1000.1KOR
In stock
Buy nowThe Nemesis Audio NA-1000.1KOR is a Korean-made Class D monoblock amplifier designed for high-output subwoofer applications. It delivers up to 1100W RMS at 1 Ohm, with strong performance at 2 Ohm and 4 Ohm loads. The amplifier features adjustable low-pass and subsonic filtering, bass boost, high efficiency, and a remote gain control for convenient adjustment.
NA-10KD
In stock
Buy nowThe Nemesis Audio NA-10KD is a high-output 1-channel Class D monoblock amplifier designed for powerful subwoofer and competition-style car audio systems. It delivers 4,500W RMS at 1Ω, supports strappable operation, and provides adjustable low-pass, subsonic, and bass boost controls. The supplied box specifications have been used as the primary source.