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2006 Infiniti FX45

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Use our shopping filters to find the right 2/3/4-channel amp to power upgraded speakers properly.

Overview Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Amps for Adding Speakers for 2006 Infiniti FX45

Some vehicles require an amp bypass module, a line-output converter like the NVX XLCA2 or AudioControl LC2i, or a DSP to integrate with your factory radio and avoid bass roll-off. Bass roll-off occurs when a factory radio's crossover is designed only for the original equipment speakers, resulting in a not complete signal being sent to your new aftermarket amp.

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Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
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Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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DS18 G4000.5D

4000W Peak (1480W RMS) Class D Gen-X Series 5 Channel Car Amplifier with Bass Remote

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DS18 G4000.5D

4000W Peak (1480W RMS) Class D Gen-X Series 5 Channel Car Amplifier with Bass Remote

• 130 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 220 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 420 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1480 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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Wet Sounds Sinister-SDX4

1370W RMS Class D Sinister Series 4 Channel Marine Amplifier with Bass Remote

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Wet Sounds Sinister-SDX4

1370W RMS Class D Sinister Series 4 Channel Marine Amplifier with Bass Remote

• 185 watts x 4 channel @ 4 ohm
• 340 watts x 4 channel @ 2 ohm
• Bridged: 685 watts x 2 channel @ 4 ohm
• Total RMS Power: 1370 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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• 185 watts x 4 channel @ 4 ohm
• 340 watts x 4 channel @ 2 ohm
• Bridged: 685 watts x 2 channel @ 4 ohm
• Total RMS Power: 1370 watts
• Class D 2 ohm Stable 4-Channel Amplifier

NVX VADM2 Version 2 (VADM2v2) (Open Box, Great)

600W RMS V-Series Micro Full-Range Class D 2-Channel Amplifier Car/Marine/Powersports Amplifier

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NVX VADM2 Version 2 (VADM2v2) (Open Box, Great)

600W RMS V-Series Micro Full-Range Class D 2-Channel Amplifier Car/Marine/Powersports Amplifier

• 200 watts x 2 channel @ 4 ohm
• 300 watts x 2 channel @ 2 ohm
• Bridged: 600 watts x 1 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

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Hifonics BG-560.2

560W RMS Class D Brutus BG Series 2-Channel Car Amplifier

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Hifonics BG-560.2

560W RMS Class D Brutus BG Series 2-Channel Car Amplifier

• 150 watts x 2 channel @ 4 ohm
• 275 watts x 2 channel @ 2 ohm
• Bridged: 560 watts x 1 channel @ 4 ohm
• Total RMS Power: 560 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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• 150 watts x 2 channel @ 4 ohm
• 275 watts x 2 channel @ 2 ohm
• Bridged: 560 watts x 1 channel @ 4 ohm
• Total RMS Power: 560 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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AudioControl ACX-300.2

300W RMS Class D ACX Series 2-Channel Marine and Powersports Amplifier

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AudioControl ACX-300.2

300W RMS Class D ACX Series 2-Channel Marine and Powersports Amplifier

• 75 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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• 75 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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Sundown Audio SFB1000.4D (A-SFB10004)

4000W RMS Class D SFB Series 4-Channel Car Amplifier

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Sundown Audio SFB1000.4D (A-SFB10004)

4000W RMS Class D SFB Series 4-Channel Car Amplifier

• 325 watts x 4 channel @ 4 ohm
• 550 watts x 4 channel @ 2 ohm
• 1000 watts x 4 channel @ 1 ohm
• Total RMS Power: 4000 watts
• Class D 1 ohm Stable 4-Channel Amplifier

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NVX XKIT04

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Deaf Bonce Apocalypse ASA 1500.2

1500W RMS Class D Apocalypse Sport Series 2-Channel Car Amplifier

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Deaf Bonce Apocalypse ASA 1500.2

1500W RMS Class D Apocalypse Sport Series 2-Channel Car Amplifier

• 550 watts x 2 channel @ 4 ohm
• 890 watts x 2 channel @ 2 ohm
• 1500 watts x 2 channel @ 1 ohm
• Bridged: 1780 watts x 1 channel @ 4 ohm
• Bridged: 3020 watts @ 2 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

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NVX XKIT02

NVX XKIT02

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Sundown Audio SALT-1700.5

1700W RMS Class D SALT Series 5-Channel Full Range Car Amplifier

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Sundown Audio SALT-1700.5

1700W RMS Class D SALT Series 5-Channel Full Range Car Amplifier

• 125 watts x 4 channel + 480 watts x 1 channel @ 4 ohm
• 220 watts x 4 channel + 800 watts x 1 channel @ 2 ohm
• 1300 watts x 1 channel @ 1 ohm
• Total RMS Power: 1700 watts
• Class D 1 ohm Stable 5-Channel Amplifier

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Cerwin-Vega H900.6D

900W RMS Class D HED Series 6 Channel Car Amplifier

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Cerwin-Vega H900.6D

900W RMS Class D HED Series 6 Channel Car Amplifier

• 100 watts x 6 channel @ 4 ohm
• 150 watts x 6 channel @ 2 ohm
• Bridged: 300 watts x 3 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 6-Channel Amplifier

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Deaf Bonce Apocalypse ASA 2500.2

2500W RMS Class D Apocalypse Sport Series 2-Channel Car Amplifier

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Deaf Bonce Apocalypse ASA 2500.2

2500W RMS Class D Apocalypse Sport Series 2-Channel Car Amplifier

• 990 watts x 2 channel @ 4 ohm
• 1630 watts x 2 channel @ 2 ohm
• 2500 watts x 2 channel @ 1 ohm
• Bridged: 3260 watts x 1 channel @ 4 ohm
• Bridged: 5000 watts @ 2 ohm
• Total RMS Power: 2500 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

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NVX XKIT02

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$125.99

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Autotek MM-1525.4D Mean Machine

1500W Peak Class D Compact Mean Machine Series 4-Channel Car Amplifier

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Autotek MM-1525.4D Mean Machine

1500W Peak Class D Compact Mean Machine Series 4-Channel Car Amplifier

• 200 watts x 4 channel @ 4 ohm
• 375 watts x 4 channel @ 2 ohm
• Bridged: 750 watts x 2 channel @ 4 ohm
• Total Peak Power: 1500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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Crunch CRA-950.4

950W RMS Class D CRA Series 4-Channel Compact Car Amplifier

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Crunch CRA-950.4

950W RMS Class D CRA Series 4-Channel Compact Car Amplifier

• 115 watts x 4 channel @ 4 ohm
• 235 watts x 4 channel @ 2 ohm
• Bridged: 475 watts x 2 channel @ 4 ohm
• Total RMS Power: 950 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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List price $130.00
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NVX XKIT44

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• 115 watts x 4 channel @ 4 ohm
• 235 watts x 4 channel @ 2 ohm
• Bridged: 475 watts x 2 channel @ 4 ohm
• Total RMS Power: 950 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Diamond Audio MICRO2V2

500W RMS Class D MicroV2 Series Compact 2-Channel Amplifier with Bluetooth

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Diamond Audio MICRO2V2

500W RMS Class D MicroV2 Series Compact 2-Channel Amplifier with Bluetooth

• 150 watts x 2 channel @ 4 ohm
• 250 watts x 2 channel @ 2 ohm
• Bridged: 500 watts x 1 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

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List price $419.99
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Wet Sounds HTM-4

600W RMS Class D HTM Series 4 Channel Marine Amplifier with LED Backlit Badge

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Wet Sounds HTM-4

600W RMS Class D HTM Series 4 Channel Marine Amplifier with LED Backlit Badge

• 85 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Marine Amplifier

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• 85 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Marine Amplifier

Jensen JATWO

530W Peak (445W RMS) Class D JA Series 2-Channel Car Amplifier

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Jensen JATWO

530W Peak (445W RMS) Class D JA Series 2-Channel Car Amplifier

• 125 watts x 2 channel RMS @ 4 ohm
• 215 watts x 2 channel RMS @ 2 ohm
• Bridged: 445 watts x 1 channel RMS @ 4 ohm
• Total RMS Power: 445 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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Kicker CXA660.5T (46CXA6605T) w/ Remote Bass Controller

660W RMS Class AB CX-Series 5 Channel Car Amplifier with Wired Bass Remote Controller for CX Series Amplifiers

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Kicker CXA660.5T (46CXA6605T) w/ Remote Bass Controller

660W RMS Class AB CX-Series 5 Channel Car Amplifier with Wired Bass Remote Controller for CX Series Amplifiers

  • Kicker CXA660.5T 660W RMS 5-Channel Car Amplifier
  • Class AB CX-Series high-performance power plant
  • Wired Bass Remote Controller for effortless adjustments
  • Precision audio control for CX-Series amplifiers
  • Complete system integration with professional-grade hardware
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  • Kicker CXA660.5T 660W RMS 5-Channel Car Amplifier
  • Class AB CX-Series high-performance power plant
  • Wired Bass Remote Controller for effortless adjustments
  • Precision audio control for CX-Series amplifiers
  • Complete system integration with professional-grade hardware

Wet Sounds SYN-DX2

750W Peak Class D SYN-DX Series 2 Channel Marine Amplifier

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Wet Sounds SYN-DX2

750W Peak Class D SYN-DX Series 2 Channel Marine Amplifier

• 200 watts x 2 channel @ 4 ohm
• 375 watts x 2 channel @ 2 ohm
• Bridged: 750 watts x 1 channel @ 4 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable 2-Channel Marine Amplifier

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• 200 watts x 2 channel @ 4 ohm
• 375 watts x 2 channel @ 2 ohm
• Bridged: 750 watts x 1 channel @ 4 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable 2-Channel Marine Amplifier

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MTX PS400.2

400W RMS Class D PS Series 2-Channel Powersports Amplifier

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MTX PS400.2

400W RMS Class D PS Series 2-Channel Powersports Amplifier

• 100 watts x 2 channel @ 4 ohm
• 200 watts x 2 channel @ 2 ohm
• Bridged: 400 watts x 1 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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• 100 watts x 2 channel @ 4 ohm
• 200 watts x 2 channel @ 2 ohm
• Bridged: 400 watts x 1 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 2-Channel Amplifier

Hertz HCP 4M

760W RMS HCP Series Full-Range Class D 4 2-Channel Marine Amplifier

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Hertz HCP 4M

760W RMS HCP Series Full-Range Class D 4 2-Channel Marine Amplifier

• 65 Watts RMS x 4 @ 4 ohm
• 95 Watts RMS x 4 @ 2 ohm
• CEA-2006 Compliant/Preamp Outputs/LPF
• Corrosion Protection
• Water jet tested
• Dimensions: 12.40" x 7.48" x 1.97"

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Hertz HMP 4D

600W Peak (260W RMS) Class D 4 HMP Series 4-Channel Full Range Motorcycle and Powersports Amplifier

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Hertz HMP 4D

600W Peak (260W RMS) Class D 4 HMP Series 4-Channel Full Range Motorcycle and Powersports Amplifier

• 4 Channel: 50 watts x 4 channel @ 4 ohm
• 4 Channel: 65 watts x 4 channel @ 2 ohm
• 3 Channel: 50 watts x 2 channel @ 4 ohm + 130 watts x 1 channel @ 4 ohm
• 3 Channel: 65 watts x 2 channel @ 2 ohm + 130 watts x 1 channel @ 4 ohm
• 2 Channel: 130 watts x 2 channel @ 4-ohm
• Total RMS Power: 260 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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• 4 Channel: 50 watts x 4 channel @ 4 ohm
• 4 Channel: 65 watts x 4 channel @ 2 ohm
• 3 Channel: 50 watts x 2 channel @ 4 ohm + 130 watts x 1 channel @ 4 ohm
• 3 Channel: 65 watts x 2 channel @ 2 ohm + 130 watts x 1 channel @ 4 ohm
• 2 Channel: 130 watts x 2 channel @ 4-ohm
• Total RMS Power: 260 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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    FAQ for Multi-channel Amplifiers for Adding Speakers in 2006 FX45

    Q: Can I upgrade or change the Multi-channel Amplifiers for Adding Speakers in 2006 Infiniti FX45?

    A: Yes this page includes all the best Multi-channel Amplifiers for Adding Speakers that work in your FX45.

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