SUNDOWN SALT-500.4 4-Channel Amplifier

  • $999.99

πŸ”Š Sundown Audio SALT-500.4 4-Channel Amplifier πŸ’₯

Premium Class-D Power for Full-Range Sound — Clean, Efficient Amplification for Any Car Audio System πŸš—πŸŽΆ
The SALT-500.4 represents the pinnacle of Korean Class-D amplifier technology from Sundown Audio, engineered to deliver big, dependable power even on standard 12-volt systems using Sundown’s Low-Voltage Technology. Whether you’re building a high-output SPL system, a crisp sound-quality setup, or a balanced full-range installation, this amp brings performance and flexibility to the table.

πŸš€ Key Features

  • πŸ”Œ 500 W RMS x 4 @ 4 Ω — Strong, clean power across all channels.

  • πŸ”Š 700 W RMS x 4 @ 2 Ω — Extra output for demanding speaker loads.

  • ⚑ 1400 W x 2 @ 4 Ω Bridged — Great for powering subs or bridged channels.

  • 🎚 Full-Range Digital Class-D Design — Efficient performance with crisp sound.

  • πŸŽ› Variable 12 dB Subsonic, High-Pass & Low-Pass Filters (10 Hz–500 Hz) — Customize your crossover tuning for precise control.

  • πŸ“Š X1/X10 Crossover Multiplier — Expand tuning range for advanced setups.

  • πŸ›‘ 4-Way Protection Circuitry — Thermal, voltage, speaker short, and DC offset safeguards your system.

  • πŸ“ˆ Voltage, Temperature & Clipping Indicators — Built-in LEDs and optional wired remote display keep you informed.

  • 🧠 Low-Voltage Tech (SALT) — Optimized for real-world 12 V systems, not 14 V lab conditions.

  • 🎧 Wide Frequency Response (10 Hz–25 kHz) — Full-spectrum audio clarity.

  • πŸ“ Compact Yet Rugged Build — Easy to install even in tight spaces.

🎯 Why It’s a Standout

The SALT-500.4 combines high-efficiency Class-D design with Sundown’s Low-Voltage Technology to deliver real-world power where it matters most — on your vehicle’s stock electrical system. With advanced tuning features and protection circuitry, this amplifier excels in both full-range speaker systems and bridged sub applications, offering performance that satisfies audiophiles and SPL competitors alike.

πŸ“Š Typical Power Output

  • πŸ”Š 500 W RMS x 4 @ 4 Ω — Balanced full-range speaker power

  • πŸ”Š 700 W RMS x 4 @ 2 Ω — Stronger output for aggressive builds

  • ⚑ 1400 W x 2 Bridged @ 4 Ω — For bridging two channels to subs or higher-power speakers

πŸ“ General Specs

  • πŸ“ˆ Frequency Response: 10 Hz – 25 kHz

  • πŸ”Š Signal-to-Noise Ratio (S/N): ~105 dB

  • ⚑ Input Sensitivity: 0.2 V – 6 V

  • πŸ”‹ Operating Voltage: DC 9 V – 15.5 V

  • πŸ”§ Recommended Fuse: 300 A

  • πŸ“ Dimensions: ~14.96″ × 6.85″ × 2.66″

🎧 Perfect For

  • πŸš— Upgrading factory or aftermarket speakers

  • πŸ”Š Full-range 4-channel systems with flexible tuning

  • πŸ”‰ Bridged sub or multi-speaker configurations

  • πŸ“£ SPL builds and audiophile-grade sound systems

  • 🎢 Systems where power, clarity, and efficiency matter

Pro Tip: The SALT-500.4’s Low-Voltage Technology means it delivers real RMS power on everyday car electrical systems, not just in lab conditions — making it ideal for both serious performance builds and high-quality daily setups.

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