SB1-7500D | 7500W Class D 1 Channel Car Stereo Amplifier

Power Acoustik SB1-7500D – Saber Series Class D Monoblock Amplifier (1-Ohm Stable, 2,500W RMS, 7,500W Max)

The Power Acoustik SB1-7500D from the Saber Series is built for serious bass-heavy systems that need consistent performance, compact installation, and clean signal control. This Class D monoblock amplifier delivers up to 2,500 watts RMS at 1 ohm, making it a solid choice for high-output subwoofer configurations.

Designed with a compact 5" wide chassis and a total footprint of just 13.75" long, this amp fits in tight spaces without cutting power. It uses a MOSFET power supply and audiophile-grade IRTM transistors mounted to a military-grade SMT PCB, ensuring high thermal efficiency and low distortion even at high loads.

This 1-ohm stable amp features variable signal controls, including a 35Hz–250Hz low-pass crossover, 10Hz–50Hz subsonic filter, and a 12 dB bass boost at 45Hz for fine-tuned low-end punch. Input versatility is covered with both 200mV–6V RCA inputs and a high-level input with signal-sense auto turn-on—ideal for OEM and aftermarket systems alike.

The SB1-7500D includes thermal, short, and overload protection, and ships with a dash-mount remote gain control, letting you adjust bass output from the driver’s seat.

Key Features & Specs:

• 2,500W RMS @ 1 ohm, 1,600W @ 2 ohm, 1,000W @ 4 ohm
• 7,500W max power output
• 1-ohm stable monoblock amplifier
• Class D topology, 90%+ efficiency
• Compact chassis: 13.75″L × 5.00″W × 2.00″H
• MOSFET power supply, IRTM transistors
• Low-pass crossover: 35Hz–250Hz
• Subsonic filter: 10Hz–50Hz
• Bass boost: 0–12dB @ 45Hz
• 8-gauge power/speaker terminals
• Remote gain control included