Reiss RS-W4120.4 4 Ohms

Highlights

• 120W RMS x4 @ 4 Ohms – real power for demanding speakers
• Bridgeable: 320W RMS x2 @ 4 Ohms to power mid-bass drivers or a compact subwoofer
• Class AB for analog sound warmth and natural music reproduction
• Adjustable high-pass filter 100–1,000 Hz and low-pass filter 40–400 Hz
• Bass Boost 0–12 dB to enhance bass according to your preferences
• Damping factor > 170 for tight and controlled bass
• Signal-to-noise ratio > 90 dB for clear and dynamic sound at high volume
• Adjustable input sensitivity 0.2–6V: compatible with original car radios and aftermarket DSPs

Description

The Reiss RS-W4120.4 is the flagship model of Reiss's AB series, designed to combine raw power and acoustic finesse in a single unit. This 4-channel Class AB amplifier combines analog warmth with precise control – ideal for those who want to power a high-performance front stage system or a complete installation with dynamism and precision.

• With 120W RMS per channel @ 4 Ohms and up to 160W RMS @ 2 Ohms, it has enough power to drive the most demanding speakers. In bridged configuration, it delivers 320W RMS x2 @ 4 Ohms to power mid-bass drivers or a compact subwoofer with strength and control.
• Its wide frequency range (10–20,000 Hz) ensures natural reproduction with clear separation and rich details across the entire spectrum.
• Adjustable filters (HP 100–1,000 Hz / LP 40–400 Hz) offer great flexibility for active setups, while the Bass Boost (0–12 dB) allows bass adjustment according to the installation.
• The adjustable input sensitivity (0.2–6V) makes it compatible with both original car radios and aftermarket DSP processors.
• Three 35A fuses ensure stable power delivery even under high load, and the aluminum chassis guarantees efficient cooling and long-term durability.

Available at Sound Auto Concept, your car audio specialist.

Technical Specifications

Why choose it?

• Class AB for analog sound warmth appreciated by audiophiles
• 4 versatile channels: complete front stage system or bridged configuration for subwoofer
• Adjustable HP and LP filters for precise integration into any active system
• Compatible with original car radios and DSP due to adjustable input sensitivity
• Damping factor > 170 for controlled and defined bass
• Robust aluminum chassis for optimal cooling and long lifespan

⚠️ IMPORTANT - INSTALLATION: It is IMPERATIVE to connect this amplifier at the impedance recommended by the manufacturer and to use the recommended wiring size. For amplifiers over 2000W RMS, the vehicle's original battery is no longer sufficient. It is strongly advised to adapt the electrical supply (additional battery, reinforced alternator) to the amplifier's consumption to avoid any risk of damage and ensure optimal performance. WARNING: Any voltage drop below 12V can damage the product.

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