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Crutchfield

Infinity Reference 610a

456W x 1 mono subwoofer amplifier

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Item# 108R610A
 
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Our take on the Infinity Reference 610a

by Tim Sprinkle
Infinity

Want big bass? Look at our SubwoofersWhether you're building a component system, powering a pair of full-range speakers, or just pounding away with a subwoofer, there's an Infinity Reference series amp ready to take on the job. Boasting impressive power ratings and fine-tuned controls, these amplifiers are capable of sending your music to new sonic heights.

It's all thanks to high-output MOSFET power supplies — which ensure maximum power delivery to your speakers for efficient operation — and variable filters that let you contour the output to fit your music. Want hands-on control? Then grab hold of the optional wired remote and make level adjustments right from your dash. And, since every Infinity Reference amplifier is CEA-2006 compliant, you'll know you're getting the power as advertised.

If you're looking for a bass driving monster to power your sub, the Infinity 610a has you covered with 456 watts RMS of Class D mono power (or a ride-rocking 657 watts at 2 ohms). The Dynamic Bass Optimization circuit allows you to boost or attenuate low frequencies (up to 12 dB, variable from 20-40 Hz) for clean, crisp bass no matter how loud you like it. This unique circuit also features high-pass filtering so it can act as a subsonic filter to maximize performance of a subwoofer mounted in a ported enclosure.

Highlights:

  • 456 watts RMS x 1 at 4 ohms (CEA-2006 Compliant)
  • 657 watts RMS x 1 at 2 ohms
  • Class D circuitry
  • variable low-pass filter (32-320 Hz, 12 dB/octave)
  • variable bass boost (0-12 db)
  • Dynamic Bass Optimization circuit (high- and low-pass filters, variable from 20-40 Hz)
  • requires 4-gauge power and ground wiring — cables and hardware not included with amp
  • preamp outputs
  • optional wired level control
  • 15-7/8"W x 2-11/16"H x 12-1/8"D
  • fuse rating: 30A x 2
  • warranty: 1 year
  • Our 60-day money-back guarantee
 

Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research
What's in the box?

Download owner's manual

  • Mono amplifier with two installed 30A ATC fuses
  • Two 30A ATC fuses
  • 4 Self-tapping screws
  • 1 Silica gel packet
  • One 8" x 2-1/2" Infinity sticker
  • Instructions
  • Amplifier Quick Start Guide
  • Warranty card

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Inputs and Outputs Notes

Features

Status LEDs: The amplifier has the following status LEDs:

  • Clip: indicates the amplifier is being overdriven, and your speakers may be in danger. This should blink only on musical peaks, and not be on constantly.
  • Power: indicates the amplifier is on
  • Protect: indicates any of the following problems: DC voltage on amplifier output, overheating, under voltage, over voltage, and short circuit in the speakers or wire

Low-pass Filter: The internal low-pass filter can be adjusted from 32 to 320 Hz, and has a slope of 12 dB per octave.

Dynamic Bass Optimization (DBO): The Dynamic Bass Optimizer is used to enhance low-frequency reproduction in a vehicle. Conventional bass boost circuits only increase bass at a fixed frequency, and cause the amplifier to consume considerable power. The DBO allows you to adjust the frequency (20-40 Hz) as well as the boost level (up to 12 dB), allowing you to fine-tune the bass in your system to optimize performance. This unique circuit also features high-pass filtering so it can act as a subsonic filter to maximize performance of a subwoofer mounted in a ported enclosure.

Remote Level Control Compatible: The optional 100rc wired remote level control allows you to adjust the bass level from anywhere in the vehicle.

Preamp Outputs: The preamp output jacks provide a convenient source for daisy-chaining an additional amplifier without running an extra set of RCA cables from the front of the vehicle to the amplifier location. These outputs provide a full-range signal.

Inputs and Outputs Notes

Right Side of Amplifier:

  • +12V (power): 0.538" screw terminal
  • Remote: 0.357" screw terminal
  • GRD (ground): 0.538" screw terminal
  • Speakers: 0.357" screw terminals

Left Side of Amplifier:

  • Remote Level Control: RJ-11 jack for use with the optional 100rc wired remote level control
 
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