SUNDOWN SALT-4 Class D Amplifier

  • $1,499.99

πŸ”Š SALT-4 Class-D Mono Amplifier — 4000 W RMS πŸ’₯

Competition-Grade Bass Power — Tunable Controls & Massive Output for Subwoofer Systems πŸš—πŸ’£
The SALT-4 is a high-output Class-D monoblock amplifier engineered to deliver deep, powerful RMS bass with precision tuning and rugged protection. Designed for performance on real automotive electrical systems, this amp is ideal for SPL competition rigs, show vehicles, and high-end daily systems where serious bass matters.

⚑ Key Features

  • πŸ”₯ 4000 W RMS x 1 @ 1 Ω — Huge, stable power for demanding subwoofer loads

  • πŸ’ͺ 2300 W RMS x 1 @ 2 Ω — Strong, controlled output across common loads

  • 🎢 1200 W RMS x 1 @ 4 Ω — Clean performance even at higher impedance

  • πŸ”— Strappable for Extra Power Scaling — Combine amps for even larger RMS output

  • 🎚️ 24 dB Variable Subsonic Filter (10–50 Hz) — Tightens ultra-low bass and protects subs

  • πŸŽ›οΈ 24 dB Variable Low-Pass Filter (35–250 Hz) — Precision crossover control

  • πŸ”Š Bass Boost @ 45 Hz (0–9 dB) — Add low-end weight when needed

  • πŸ”„ Phase Control (0–180°) — Align sub timing with the rest of your system

  • πŸ“Œ Wired Remote Included — Dash-mountable monitoring of clipping, voltage & temperature

  • πŸ›‘ Multi-Way Protection Circuitry — Safeguards against thermal, voltage, speaker-short & DC issues

  • ❄️ Efficient Class-D Architecture — Runs cool and stable under heavy load

πŸ“Š Performance Specs

  • πŸ“Œ 1 Ω Mono RMS: 4000 W

  • ⚑ 2 Ω Mono RMS: 2300 W

  • πŸ”Š 4 Ω Mono RMS: 1200 W

  • πŸ“ˆ Frequency Response: 10 Hz – 250 Hz

  • πŸ”Š Signal-to-Noise Ratio: Clean, low-noise output

  • ⚑ Input Sensitivity: Adjustable for optimal system matching

  • πŸ”‹ Operating Voltage: Designed for real automotive electrical systems

  • πŸ“ Heavy-Duty Chassis — Built for competition durability and reliability

🎯 Why It’s a Top Choice

The SALT-4 offers massive RMS output with advanced tunability and protection, giving you the tools to dial in rich, controlled low-frequency performance. Its robust filters and phase controls help optimize integration with your subwoofer and enclosure — whether sealed or ported — and its efficient Class-D design keeps heat low and output stable.

πŸš— Perfect For

  • πŸ”Š High-output subwoofer systems

  • 🏁 SPL & competition builds

  • 🎢 High-end street audio rigs

  • πŸ”§ Custom installations where power and control are essential

🧠 Pro Tips

  • Set the subsonic filter slightly below your enclosure’s tuning point to reduce over-excursion and tighten ultra-low bass response.

  • Use 1/0-gauge (or thicker) power and ground wiring to support stable current delivery under heavy load.

  • Balance gain and filter settings across your signal chain (head unit → processor → amp) for the cleanest output with minimal distortion.

  • Mount the wired remote in an easy-to-see dash location so you can monitor clipping, voltage, and temperature in real time during tuning sessions or competitions.

  • For extreme SPL setups, stabilize your electrical system with quality batteries, upgraded alternators, or power caps to maintain voltage under load.

CUSTOMER REVIEWS

This product has no reviews.