Infinity Reference 611a Car Audio Amplifier Recommendations

The new Reference series amplifiers build upon Infinity's reputation for performance and design that's been leading the industry for almost 40 years. Reference series subwoofer amplifiers utilize high-frequency Class D switching technology, which is far more efficient than traditional Class A/B power amplifiers. Class D circuitry allows for voltage switching, which manages the power output to ensure peak performance with minimum drain on your vehicle's charging system. The Reference series 611a is a high-performance, single-channel amplifier capable of pushing over 600 watts of crystal clear sound. Infinity's proprietary Dynamic Bass Optimizer (DBO) circuit matches variable bass boost with a variable subsonic filter to enable low frequency fine-tuning while still providing robust speaker protection. Other features include two sets of parallel output terminals for easy connection of multiple woofers, and an optional remote level control.