SB4-2500D | 2500W Class D Full Range 4 Channel Car Stereo Amplifier

Power Acoustik SB4-2500D – SABER Series 2,500W 4-Channel Class D Amplifier

The Power Acoustik SB4‑2500D is a compact yet high-output 4-channel Class D amplifier engineered to meet the power demands of modern car audio systems. Part of the SABER Series, it delivers up to 2,500 watts of maximum power in a slim, 5-inch-wide chassis — ideal for installations where space is limited but performance can't be compromised.

This 2-ohm stable amplifier is equipped with a MOSFET power supply and audiophile-grade IRTM transistors, providing clean, efficient power across multiple channels. With flexible configuration options, the SB4‑2500D can drive mids and highs in a multi-speaker setup or be bridged for dedicated subwoofer output when needed.

Performance Specifications

• 150W x 4 @ 4Ω RMS
• 225W x 4 @ 2Ω RMS
• 450W x 2 @ 4Ω Bridged
• 2,500W Peak Power Output

Whether installed in a daily driver or a competition build, this amplifier maintains signal integrity and stable output under demanding conditions, thanks to its SMT PCB construction and robust thermal, overload, and short-circuit protection systems.

Technical Features

• Compact 5.00″W × 8.00″L × 2.00″H chassis for tight installation spots
• High-pass and low-pass crossovers at 80 Hz for system tuning flexibility
• Variable bass boost (+12 dB) for added depth in the lower frequency range
• Low-level RCA inputs (200 mV–6 V) for clean signal integration
• High-level speaker inputs with auto signal sensing for OEM integration
• Supports 8-gauge power and speaker wire connections
• LED status indicators for quick diagnostic feedback

System Compatibility

This amp is suited for:

• Full-range car audio setups with four speakers
• Mid and high frequency drivers (tweeters/mid-bass)
• Bridged mode for dual subwoofers or high-output woofers
• OEM factory head unit integration via high-level input