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Infinity 611A

Class D Monoblock Amplifier

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The product on this page is discontinued.
  • Infinity Systems 1-Channel Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 450 watts x 1 chan.
  • Max power output: 650 watts x 1 chan.
  • LED power indicators
  • Tuned Bass EQ (0-12 dB bass boost at 20-80 Hz)
  • Dynamic Bass Optimization (DBO) circuit
  • Single channel operation
  • Preamp RCA outputs
  • Variable low-pass filter (32-320 Hz, 12 dB/octave)
  • CEA-2006 compliant amplifier
  • Dimensions: 15-7/8" L x 12-1/8" W x 2-11/16" H
  • 4-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
  • 1-year SonicElectronix.com warranty
Power Specifications - Full Range Channels
RMS Power @ 4 ohms450 watts x 1 channel
RMS Power @ 2 ohmsN/A
RMS Power @ 1 ohmN/A
Bridged RMS PowerN/A
Peak Power Output650 watts x 1 channel
Amplifier Specifications
Amplifier ClassD
Number of Channels1 - Mono
Total Peak Power Output650 watts
Total RMS Power Output450 watts
Minimum Impedance Unbridged2 ohms
Minimum Impedance BridgedNot Bridgeable
THD at Rated RMS Power1%
Speaker Level InputsNo
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-Pass Crossover FrequencyN/A
Low-Pass Crossover Frequency32 - 320 Hz
Subsonic FilterN/A
Signal-to-Noise Ratio70 dB
Channel SeparationN/A
Bass Boost0 - 12 dB
Bass/Gain RemoteNo
Fan CooledNo
Fuse Rating30A x 2 
Warranty and Return Policy
Return Policy Standard Return Policy
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Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
 ProductPriceAdd?
Kicker ZCK4Kicker ZCK4
Complete 4 Gauge Amp Wiring Kit with RCA Interconnect Cables and Speaker Wire!		$79.99
StreetWires ZN1K-04StreetWires ZN1K-04
4 Gauge (AWG) ZN1 Series Single Amplifier Installation Kit for Systems up to 1000 Watts		$37.99
Kicker PKD4Kicker PKD4
Dual Amplifier 4 Gauge Amp Installation Kit w/ Distribution Blocks		$99.99
Bass Remote Control
Control the volume level of your bass and amplifier from the front of the vehicle.
 ProductPriceAdd?
Universal Remote Level Bass ControlUniversal Remote Level Bass Control
Controls bass level and frequency via RCA/Interconnect connectors on any amp.		$14.99
Small Universal Remote Level Bass ControlSmall Universal Remote Level Bass Control
The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.		$12.99
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
 ProductPriceAdd?
Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install		$24.99
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction		$19.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
 ProductPriceAdd?
Kicker Z-Series RCA Interconnect CablesKicker Z-Series RCA Interconnect Cables
16.5 ft. of 2-Channel Kicker Interconnects with twisted pair conductors, gold plated contacts, and hyper-flex technology for easy installation!		$14.99
Directed Silver Series Audio Interconnect Cable ** LOW PRICE **Directed Silver Series Audio Interconnect Cable ** LOW PRICE **
20 ft. of 2-Channel RCA Interconnect cable with twisted pair construction.		$3.99
Monster Cable 300 Series XLN+ Audio Interconnect CableMonster Cable 300 Series XLN+ Audio Interconnect Cable
16.4 ft. of 2-Channel Monster Cable with XLN (Xtra Low Noise) construction, 6-cut turbine MirrorChrome connectors, and 2-way time correct windings for the ultimate RCA cable!		$45.00
Capacitors
Capacitors store energy for the amplifier to use on demand, thereby assisting in the elimination of dimming lights during peak power surges during use.
 ProductPriceAdd?
Raptor C1F ** SPECIAL PRICE **Raptor C1F ** SPECIAL PRICE **
True 1.0 Farad Car Audio Capacitor for up to 1000W Max		$31.99
e2 ECAP1 by Scosche - Mid-Level 1 Farade2 ECAP1 by Scosche - Mid-Level 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max		$43.99
Rockford Fosgate RFC1D - Top of the Line 1 FaradRockford Fosgate RFC1D - Top of the Line 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max		$104.99
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
 ProductPriceAdd?
StreetWires FB4StreetWires FB4
4 AWG / 4 Gauge Firewall Bushing		$7.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs		$18.99
Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.		$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
 ProductPriceAdd?
AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99

Product Summary

Manufacturer: Infinity
Model number: 611a
Weight: 12.00 lbs
Internal SKU: 611a
Internal product ID: 9477

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