🔊 Stetsom HL400.4 – 4 Channel Car Audio Amplifier | 400W RMS | Compact & Powerful 🔧 Key Specifications: 🎚️ 4-Channel Class AB Amplifier 🔥 400W Total RMS Power 🎵 Power @ 2 Ohms (13.8V): 4 × 100W RMS 🎵 Power @ 4 Ohms (13.8V): 4 × 60W RMS 🚀 Bridged Power @ 4 Ohms: 2 × 200W RMS 🔋 Operating Voltage: 9V – 15V DC 🎼 Frequency Response: 5Hz – 24kHz 📈 Signal-to-Noise Ratio: > 90dB 🎛️ Input Sensitivity:• RCA: 200mV• Wire Input: 1.5V 🔌 Compact Size: 50 × 125 × 124 mm ⚖️ Weight: 520g Product Description 💥 Small size, big power.The Stetsom HL400.4 is a high-efficiency 4-channel amplifier designed to deliver clean and dynamic audio in any car audio setup — from everyday builds to high-performance systems. Perfect for powering: Midrange speakers Coaxial systems Compression drivers Tweeters Small sub setups (bridged) With 400W RMS total power, it can run 4 speakers at 2 Ohms or be configured in bridge mode for more powerful channels — ideal for front stage upgrades or rear fill. 🎯 Its compact footprint makes it easy to install in tight spaces, motorcycles, UTVs, or hidden OEM-style builds. Engineered with high signal-to-noise ratio, wide frequency response, and low distortion for clean, loud, and reliable sound. Why Choose the HL400.4? ✔️ Compact but powerful✔️ High efficiency & clean audio✔️ Perfect for mids, highs & voice setups✔️ Stetsom reliability — made for competition & street sound
