Infinity Reference 611a Monoblock 456 Watts RMS x 1 Subwoofer Amplifier

The Infinity Reference 611a monoblock subwoofer amplifier delivers up to 456 watts RMS at 4 ohms, or 657 watts at 2 ohms, providing strong, efficient power for low-frequency performance in car audio systems. Its Class D design ensures high output with minimal heat and improved efficiency.

A variable low-pass filter allows precise tuning between 32 and 320 Hz, while the Dynamic Bass Optimization circuit enhances bass response with adjustable boost. Preamp inputs and outputs support flexible system integration, making it a solid choice for upgrading or building a custom subwoofer setup.

Orders are processed and shipped within one to two business days Monday through Friday 9:00 am – 5:00 PM. Your satisfaction is our primary goal! If for any reason you are not satisfied, we offer a 10 day money back guarantee from date of purchase for in-store pick-up orders and 15 day money back guarantee from date of purchase on shipped.