Sundown Audio Salt-4 Class-D Mono Block Amplifier

Description
The Sundown Audio SALT-4 is a high-powered Class-D monoblock amplifier built for serious bass enthusiasts and competitive sound systems. Delivering massive output with exceptional efficiency and reliability, it’s designed to drive subwoofers with clean, controlled power. As part of the elite SALT (Sundown Audio Low-Voltage Technology) series, the SALT-4 stands out for its build quality, power-handling capabilities, and rugged durability under demanding loads.

Features
• Monoblock Class-D amplifier for subwoofers
• Heavy-duty internals for stable high-power delivery
• Designed for maximum output and clarity
• Variable low-pass crossover and subsonic filter
• Built-in bass boost control
• Compact chassis with durable heat sink design
• Protection against thermal overload, short circuit, and low voltage
• Remote bass knob included for easy level adjustment

Specifications
• Model: SALT-4
• Class: D (Monoblock)
• RMS Power @ 1 Ohm: 4000W
• RMS Power @ 2 Ohm: Approx. 2500W
• RMS Power @ 4 Ohm: Approx. 1500W
• Frequency Response: 10Hz – 250Hz
• Signal-to-Noise Ratio: >85dB
• Subsonic Filter: 10Hz – 50Hz
• Low-Pass Filter: 35Hz – 250Hz
• Bass Boost: 0 – 12dB (centered at 45Hz)
• Input Sensitivity: 6V – 0.2V
• Dimensions: Varies by version (typically around 20" in length)
• Ideal for: High-performance subwoofer setups