Infinity Reference 611A Car Amplifier
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Infinity Reference 611A Car Amplifier

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  • Amplifier Type: Mono Channel
  • RMS Power at 4 Ohms: 456 W x 1
  • Bridgeable: Not Bridgable
  • RMS Power at 2 Ohms: 657 W x 1
  • Channels: Mono
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Infinity Reference 611A Car Amplifier

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.

Product Details and Features


Width 15.88 in.
Height 2.69 in.

Technical Features

3 Way Ready No

Crossover / Equalizer

Bass Boost With Bass Boost
Low - Pass Frequency 32 Hz - 320 Hz


THD at Rated RMS Power 1 %
Frequency Response 17 Hz - 0.302 Hz
Signal to Noise Ratio 70 dB

Key Features

Amplifier Type Mono Channel
RMS Power at 4 Ohms 456 W x 1
Bridgeable Not Bridgable
RMS Power at 2 Ohms 657 W x 1
Channels Mono

Product Identifiers

UPC 50667034580

Other Features

Brand Infinity

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