Description

DS18 DIA-P2500X1D
The DIA‑P2500X1D is a high‑output Class‑D monoblock subwoofer amplifier from the Black Diamond series engineered for deep, powerful bass performance in car audio, marine, UTV/ATV, and off‑road systems. It delivers an impressive 2500 W RMS at 1 Ω, with strong power at 2 Ω and 4 Ω loads, making it ideal for driving large subwoofer configurations that need serious low‑end punch. The amp features adjustable filters including a fixed low‑pass crossover, subsonic filter, and bass boost to dial in exact bass response. Built‑in protection circuitry guards against thermal overload, short circuits, DC outputs, and voltage irregularities for reliable performance even under demanding conditions. Rugged and compact, this monoblock is designed to handle high SPL applications while maintaining clarity and efficiency.
Specifications
| Specification |
Details |
| Total Watts (Peak) |
7500W |
| RMS Power @ 4Ω |
900W |
| RMS Power @ 2Ω |
1600W |
| RMS Power @ 1Ω |
2500W |
| RMS Power @ 4Ω Bridge |
– |
Technical Specifications
| Specification |
Details |
| Frequency Response |
10 – 300Hz |
| Signal to Noise Ratio |
>95dB |
| Total Harmonic Distortion (THD) |
0.01% |
| Low Level Input Range |
0.2V – 6V |
| High Level Input |
No |
| Selectable Crossover |
Fixed LPF |
| Crossover Filter Range |
50 – 220Hz |
| Bass Boost Range |
0 / 6 / 12 dB |
| Bass Boost Frequency |
40Hz |
| Infrasonic Filter |
10 – 50Hz |
Features
| Feature |
Details |
| Amplifier Class |
Digital |
| Amplifier Type |
MonoBlock Subwoofer |
| Number of Channels |
1 |
| Minimum Impedance |
1 Ohm |
| LED Indicator |
Power / Protect / Clipping |
| Power Input Terminal Size |
2 / 0 GA |
| Fuse Size |
250A |
| Remote Level Control |
Yes / Dash Mount |
| Cooling Fan |
No |
| Voltmeter |
No |
| Thermal Protection |
Yes |
| Over-Load Protection |
Yes |
| DC Output Protection |
Yes |
| Short Circuit Output Protection |
Yes |
| Voltage Input Protection |
Yes (<9V / >16V) |
| Clipping Protection |
Yes |
| Body Color / Finish |
Black / Satin |
Measurements
| Measurement |
Dimensions |
| Overall Length |
21.2″ / 540mm |
| Overall Width |
6.18″ / 157mm |
| Overall Height |
2″ / 52.8mm |
| Heatsink Length |
19.68″ / 500mm |
| Gross Single Unit Weight |
Not specified |
Product Overview
Class D Monoblock Amplifier | 2500W RMS @ 1 Ohm
Get ready to feel the earth shake with the DIA-P2500X1D. This Class D monoblock amplifier delivers a massive 2500W RMS at 1 ohm, with peaks up to 7500W. Run 900W RMS at 4 ohms or 1600W RMS at 2 ohms, and bring distortion-free bass that hits deep.
Precise Sound Control
The selectable bass boost lets you dial in 0, 6, or 12dB of added punch. Plus, with adjustable subsonic (10Hz–50Hz) and low-pass filters (50Hz–220Hz), your subwoofer reproduces sound tailored to your unique vibe.
Black Diamond Durability
Engineered for stability at 1 ohm, the DIA-P2500X1D thrives in high-demand SPL setups. Its rugged monoblock design features a massive heatsink for superior cooling during marathon sessions. Thermal, overload, DC output, and short circuit protections keep your system safe and sound.
Compact Yet Powerful
Measuring just 21.2” long with a 19.68” heatsink, this amp fits easily in most car builds. It’s the perfect blend of brute power and smart design.
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