






Sundown Audio SIA-2500D Full-Range Mono Amplifier
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Subwoofer Wiring Diagram
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- RMS Power — 2,500W x 1 @ 1Ω, 2,500W x 1 @ 2Ω, 2,000W x 1 @ 4Ω
- Class — Full-range Class D monoblock, intelligent full-bridge design
- Low-Pass Filter — Variable 12dB, 40Hz–20kHz
- High-Pass Filter — Variable 12dB, 10Hz–1kHz
- Bass Boost — Variable 12dB @ 50Hz
This Listing Includes: (1) Sundown Audio SIA-2500D Full-Range Mono Amplifier
The SIA-2500D is a full-range monoblock that delivers the same 2,500 watts at both 1 ohm and 2 ohms, and 2,000 watts at 4 ohms. Its intelligent full-bridge design pairs a variable 12dB low-pass filter (40Hz–20kHz), a variable 12dB high-pass filter (10Hz–1kHz), a subsonic filter, and a variable 12dB bass boost at 50Hz. A heavy heatsink and advanced 3-speed Smart Cooling fan manage thermal load while protecting the amp from overheating and distorted output, backed by thermal, voltage, speaker-short, and DC-offset protection circuitry. Power, protection, and clipping indicators are onboard and a wired remote with clipping indicator is included. Authorized Sundown Audio dealer at JS Ultimate Sounds. Free shipping on orders $99+.
Features
- Same rated power at 1 and 2 ohms for flexible wiring
- Intelligent full-bridge design for power and stability
- Variable low-pass, high-pass, and subsonic filters
- Advanced 3-speed Smart Cooling fan and heavy heatsink
- Wired remote control with clipping indicator included
Specifications
| RMS @ 1Ω | 2,500W x 1 |
| RMS @ 2Ω | 2,500W x 1 |
| RMS @ 4Ω | 2,000W x 1 |
| Low-Pass Filter | Variable 12dB, 40Hz–20kHz |
| High-Pass Filter | Variable 12dB, 10Hz–1kHz |
| Bass Boost | Variable 12dB @ 50Hz |
| Protection | Thermal, voltage, speaker short, DC-offset |


