INFINITY PRIMUS 50011A - Primus Series Car Subwoofer Mono Amplifier | 500W RMS @2ohms

Infinity Primus 50011A | Mono Channel Amplifier | 500 W RMS

The Infinity Primus 50011A is an HARMAN engineered mono channel car amplifier delivering robust power, refined control, and flexible tuning capabilities—perfect for powering subwoofers in both factory and custom installations.

Its compact Class‑D architecture offers punchy low-end performance with a built-in variable bass boost and crossover controls, delivering strong output without compromising installation flexibility.

Product Highlights:

Mono‑channel Class‑D amplifier delivering 500 W RMS to a 2 Ω load

Peak power output up to approximately 1220 W

Variable low‑pass filter (32 Hz–320 Hz) for seamless system integration

Bass EQ with up to 12 dB boost at 45 Hz for deep, impactful lows

Phase shift control (0°–180°) to align subwoofer timing

Built-in protection circuitry against DC, over/under-voltage, over-current, and thermal faults

Compact chassis for flexible mounting in tight vehicle spaces

Tech Specs:

Model: Primus 50011A

Type: Mono Channel Class‑D Amplifier

Power Output: 500 W RMS × 1 @ 2 Ω; 300 W RMS × 1 @ 4 Ω

Peak Power: ~1220 W

Frequency Response: 10 Hz – 320 Hz ±1 dB

Input Sensitivity: Low: 0.2 V–5 V; High: 1 V–25 V

Low-Pass Filter: 32 Hz – 320 Hz adjustable

Bass EQ: 0 dB to +12 dB @ 45 Hz

Phase Control: 0°–180° variable

THD + N @ Rated Power: ~1%

Operating Voltage: 9 V – 16 V

Protection Features: DCP (DC Protection), OVP (Over Voltage), UVP (Under Voltage), OCP (Over Current), OTP (Over Temperature)

Fuse Rating: 2 × 30 A

Applications: Dedicated subwoofer amplifier for cars, trucks, SUVs; ideal for OEM upgrades or custom installs