SUNDOWN SAEv4-100.4 4-Channel Amplifier

  • $349.99

πŸ”Š Sundown Audio SAEv3-400.4 4-Channel Amplifier πŸ’₯

High-Power Class-D Amplification — Clean, Efficient Sound for Full-Range Systems πŸš—πŸŽΆ
A versatile 4-channel class-D amplifier built to deliver strong, reliable power to speakers in a compact and thermally efficient design. Ideal for powering front/rear components or bridging to run subs — this amp brings clarity and control to your audio system.

πŸš€ Key Features

  • ⚑ 400 W RMS x 4 @ 2 Ω — Powerful output for demanding speaker loads.

  • 🎡 250 W RMS x 4 @ 4 Ω — Balanced power for full-range setups.

  • πŸ” Class-D Full-Range Efficiency — Efficient power delivery with reduced heat.

  • 🎚️ Variable LPF & HPF (50 Hz – 500 Hz) — Tailor frequency response for speakers or mids.

  • πŸ“ 20 Hz – 20 kHz Frequency Response — Full spectrum coverage for music clarity.

  • πŸ“Š Signal-to-Noise Ratio ~88 dB — Clean audio with minimal noise.

  • πŸ”’ 4-Way Protection Circuitry — Safeguards against thermal, voltage, speaker short & DC offset issues.

  • 🌑️ Smart Thermal Management — Keeps performance stable under load.

  • πŸ”Œ Wide Input Gain Range (0.2–6 V) — Easy tuning with a variety of head units.

  • πŸ“ Compact Footprint — Easy mounting even in tight spaces.

πŸ“Š Why It’s a Great Choice

The SAEv3-400.4 offers high output and flexible tuning in a compact, efficient class-D platform — perfect for powering speakers in full-range or component systems. Whether you’re upgrading factory amps or building a custom audio setup, this amp balances power, control, and reliability for excellent overall performance.

πŸ”₯ Typical Power Output

  • πŸ”Š 400 W RMS x 4 @ 2 Ω — Strong, dynamic power

  • 🎢 250 W RMS x 4 @ 4 Ω — Clean, controlled sound
    (Bridging capabilities depend on wiring & system design.)

πŸ“ General Specs

  • πŸ“ˆ Frequency Response: 20 Hz – 20 kHz

  • 🎚️ LPF / HPF Crossover: 50 Hz – 500 Hz

  • πŸ“Š S/N Ratio: ~88 dB

  • ⚑ Input Sensitivity: 0.2 V – 6 V

  • πŸ”’ Protection: Thermal, voltage, speaker short, DC offset
    (Designed for reliable, long-lasting performance in automotive environments.)

🎧 Perfect For

  • πŸš— Upgrading factory or aftermarket speaker systems

  • 🎡 Full-range front/rear speaker amplification

  • πŸ“» Balanced 4-channel systems with flexible tuning

  • πŸ”Š Anyone seeking efficient Class-D power with clean output

Pro Tip: With its strong RMS ratings and adjustable filters, the SAEv3-400.4 is especially effective in setups where you want crisp, full-range performance without adding heat or bulk — ideal for tight installs or multi-speaker systems.

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