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  3. Car Amplifiers
  4. Car Amplifier Packages & Bundles

Car Amplifier Packages & Bundles

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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.

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.
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.
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.
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.

Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
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Sundown Audio SW-NSV612D1 + NVX XCA6K

1 pair of 7000W Peak (3000W RMS) 12" NS Series Dual 1-ohm Subwoofer with Class-D Monoblock Amplifier with LED Remote Bass Knob (Strapable and Linkable)

NSV612D1_X2_XCA3K big
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Sundown Audio SW-NSV612D1 + NVX XCA6K

1 pair of 7000W Peak (3000W RMS) 12" NS Series Dual 1-ohm Subwoofer with Class-D Monoblock Amplifier with LED Remote Bass Knob (Strapable and Linkable)

• Peak Power: 7000 watts
• Sensitivity: RMS Power: 3000 watts
• Sensitivity: Impedance: Dual 1 ohm
• Sensitivity: Polypropylene Cone
• Sensitivity: Mega Roll V2 Surround
• Sensitivity: Mount depth: 12.75"
• Sensitivity: Sensitivity: 83.02 dB

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• Peak Power: 7000 watts
• Sensitivity: RMS Power: 3000 watts
• Sensitivity: Impedance: Dual 1 ohm
• Sensitivity: Polypropylene Cone
• Sensitivity: Mega Roll V2 Surround
• Sensitivity: Mount depth: 12.75"
• Sensitivity: Sensitivity: 83.02 dB

Sundown Audio ZV6 15" D2 + NVX XCA6K

1 pair of 2500W RMS 15" Z Series Dual 2-ohm Car Subwoofer with Class-D Monoblock Amplifier with LED Remote Bass Knob (Strapable and Linkable)

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Sundown Audio ZV6 15" D2 + NVX XCA6K

1 pair of 2500W RMS 15" Z Series Dual 2-ohm Car Subwoofer with Class-D Monoblock Amplifier with LED Remote Bass Knob (Strapable and Linkable)

• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Mega Roll V2 Surround
• Mount depth: 12.93"
•Sensitivity: 86.57 dB

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• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Mega Roll V2 Surround
• Mount depth: 12.93"
•Sensitivity: 86.57 dB

Lowest price in 30 days

Alpine Full Audio Truck Package

600W 8" Ported Dual Subwoofer Loaded Enclosure + 900W 8-Channel Processor/Amplifier + 6"x9" 2-way Component Speakers + 6.5" Coaxial Speakers

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Alpine Full Audio Truck Package

600W 8" Ported Dual Subwoofer Loaded Enclosure + 900W 8-Channel Processor/Amplifier + 6"x9" 2-way Component Speakers + 6.5" Coaxial Speakers

• 600W RMS Dual Ported 8" Loaded Enclosure
• Modular Stackable Design
• Integrated Amplifier Tray
• Class D 8-Channel-Channel Amplifier
• 6"x9" Component Speakers
• 6.5" Coaxial Speakers

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• 600W RMS Dual Ported 8" Loaded Enclosure
• Modular Stackable Design
• Integrated Amplifier Tray
• Class D 8-Channel-Channel Amplifier
• 6"x9" Component Speakers
• 6.5" Coaxial Speakers

Alpine MRV-M500 with Belva 8 Gauge Amp Kit

Alpine MRV-M500 500 Watt RMS Class D Monoblock Car Amplifier

BAK82,MRV-M500 big
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Alpine MRV-M500 with Belva 8 Gauge Amp Kit

Alpine MRV-M500 500 Watt RMS Class D Monoblock Car Amplifier

• RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total Peak Power: 500W
• CEA-2006 Compliant Amplifier
• 4-Channel Speaker-Level Inputs
• Heavy Duty Aluminum Alloy Heat-Sink
• Includes Amplifier Wiring Kit

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• RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total Peak Power: 500W
• CEA-2006 Compliant Amplifier
• 4-Channel Speaker-Level Inputs
• Heavy Duty Aluminum Alloy Heat-Sink
• Includes Amplifier Wiring Kit

Sundown Audio SW-NSV612D1 + NVX XCA3K

7000W Peak (3000W RMS) 12" NS Series Dual 1-ohm Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

NSV612D1_XCA3K big
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Sundown Audio SW-NSV612D1 + NVX XCA3K

7000W Peak (3000W RMS) 12" NS Series Dual 1-ohm Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

• Peak Power: 7000 watts
• RMS Power: 3000 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Mount depth: 12.75"
• Sensitivity: 83.02 dB

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• Peak Power: 7000 watts
• RMS Power: 3000 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Mount depth: 12.75"
• Sensitivity: 83.02 dB

Alpine MRV-M500 with Blue 8 Gauge Amp Kit

1100W Peak (500W RMS) Class D V-Power Series Monoblock Car Amplifier

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Alpine MRV-M500 with Blue 8 Gauge Amp Kit

1100W Peak (500W RMS) Class D V-Power Series Monoblock Car Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier • Includes Blue Amplifier Wiring Kit

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• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier • Includes Blue Amplifier Wiring Kit

Sundown Audio ZV6 15" D2 + NVX XCA3K

2500W RMS 15" Z Series Dual 2-ohm Car Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

ZV615D2_XCA3K big
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Sundown Audio ZV6 15" D2 + NVX XCA3K

2500W RMS 15" Z Series Dual 2-ohm Car Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Mega Roll V2 Surround
• Mount depth: 12.93"
• Sensitivity: 86.57 dB

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• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Mega Roll V2 Surround
• Mount depth: 12.93"
• Sensitivity: 86.57 dB

Alpine R-A90S with NVX 4 Gauge Amp Kit

R Series 6/5/4/3 Channel Power Amplifier

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Alpine R-A90S with NVX 4 Gauge Amp Kit

R Series 6/5/4/3 Channel Power Amplifier

• 75 watts x 4 channel + 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel + 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 100 watts x 4 channel @ 2 ohm
• Total RMS Power:
• CEA-2006 Compliant
• Class D 2 ohm Stable 5-Channel Amplifier

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• 75 watts x 4 channel + 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel + 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 100 watts x 4 channel @ 2 ohm
• Total RMS Power:
• CEA-2006 Compliant
• Class D 2 ohm Stable 5-Channel Amplifier

Alpine R2-A60F with 6.5" + 6x9” Coaxial Speakers

600W RMS R-Series Class-D 4-Channel Car Amplifier + 600W Peak (200W RMS) 6.5" 200W RMS) 6x9" R-Series 2-way 4-ohm Coaxial Car Speakers

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Alpine R2-A60F with 6.5" + 6x9” Coaxial Speakers

600W RMS R-Series Class-D 4-Channel Car Amplifier + 600W Peak (200W RMS) 6.5" 200W RMS) 6x9" R-Series 2-way 4-ohm Coaxial Car Speakers

• 100 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-Channel Amplifier
• Includes 6.5" + 6x9” Series Coaxial Speakers

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• 100 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-Channel Amplifier
• Includes 6.5" + 6x9” Series Coaxial Speakers

Sundown Audio UV.2 12" D4 + NVX XCA3K

1 Pair of 1750W RMS 12" U Series Dual 2-ohm Car Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

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Sundown Audio UV.2 12" D4 + NVX XCA3K

1 Pair of 1750W RMS 12" U Series Dual 2-ohm Car Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

• RMS Power: 1750 watts
• Impedance: Dual 4 ohm
• Mount depth: 8.43"
• Sensitivity: 84.42 dB
• Includes 1 pair of Subwoofer with amplifier

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• RMS Power: 1750 watts
• Impedance: Dual 4 ohm
• Mount depth: 8.43"
• Sensitivity: 84.42 dB
• Includes 1 pair of Subwoofer with amplifier

Sundown Audio SW-SACL15D2 + NVX XCA3K

2 pairs of 750W RMS 15" SA Classic Series Dual 2-ohm Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

SACL15D2_XCA3K big
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Sundown Audio SW-SACL15D2 + NVX XCA3K

2 pairs of 750W RMS 15" SA Classic Series Dual 2-ohm Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

• RMS Power: 750 watts
• Impedance: Dual 2 ohm
• Competition Grade Paper Cone
• Mount depth: 7.69"
• Sensitivity: 89.2 dB

• Includes 2 pairs of Subwoofer with amplifier

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• RMS Power: 750 watts
• Impedance: Dual 2 ohm
• Competition Grade Paper Cone
• Mount depth: 7.69"
• Sensitivity: 89.2 dB

• Includes 2 pairs of Subwoofer with amplifier

Alpine R2-A60F with Two Pairs of 6.5" Coaxial Speakers

600W RMS R-Series Class-D 4-Channel Car Amplifier + 600W Peak (200W RMS) 6.5" R-Series 2-way 4-ohm Coaxial Car Speakers

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Alpine R2-A60F with Two Pairs of 6.5" Coaxial Speakers

600W RMS R-Series Class-D 4-Channel Car Amplifier + 600W Peak (200W RMS) 6.5" R-Series 2-way 4-ohm Coaxial Car Speakers

• 100 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-Channel Amplifier
• Includes Two Pairs of 6.5" Series Coaxial Speakers

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• 100 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-Channel Amplifier
• Includes Two Pairs of 6.5" Series Coaxial Speakers

Sundown Audio NS6 V.6 12" D2 + NVX XCA6K

1 pair of 7000W Peak (3500W RMS) 12" Nightshade NS Series Dual 2-ohm Car Subwoofer with with Class-D Monoblock Amplifier with LED Remote Bass Knob (Strapable and Linkable)

NSV612D2_X2_XCA3K big
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Sundown Audio NS6 V.6 12" D2 + NVX XCA6K

1 pair of 7000W Peak (3500W RMS) 12" Nightshade NS Series Dual 2-ohm Car Subwoofer with with Class-D Monoblock Amplifier with LED Remote Bass Knob (Strapable and Linkable)

• Peak Power: 7000 watts
• Impedance: RMS Power: 3500 watts
• Impedance: Dual 2 ohm
• Mega Roll V2 Surround
• Mount depth: 12.75"
• Sensitivity: 83.15 dB

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• Peak Power: 7000 watts
• Impedance: RMS Power: 3500 watts
• Impedance: Dual 2 ohm
• Mega Roll V2 Surround
• Mount depth: 12.75"
• Sensitivity: 83.15 dB

Alpine KTA-450 with NVX 8 Gauge Amp Kit

4-Channel 200 Watt RMS Power Pack Amplifier

KTA-450, XKIT84 big
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Alpine KTA-450 with NVX 8 Gauge Amp Kit

4-Channel 200 Watt RMS Power Pack Amplifier

• Class D 4-channels Power Pack Amplifier
• Power Handling: 50W RMS x 4 @ 4ohm/45W RMS x 4 @ 2ohm
• Dynamic Peak Power (DPP)
• Frequency Response: 15-50 Hz
• CTA-2006 compliant
• Includes Amplifier Wiring Kit

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• Class D 4-channels Power Pack Amplifier
• Power Handling: 50W RMS x 4 @ 4ohm/45W RMS x 4 @ 2ohm
• Dynamic Peak Power (DPP)
• Frequency Response: 15-50 Hz
• CTA-2006 compliant
• Includes Amplifier Wiring Kit

Sundown Audio SW-SAV215D4 + NVX XCA3K

1 pair 2500W Peak (1250W RMS) 15" SA Series Dual 4-ohm Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

SAV215D4_XCA3K big
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Sundown Audio SW-SAV215D4 + NVX XCA3K

1 pair 2500W Peak (1250W RMS) 15" SA Series Dual 4-ohm Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

• Peak Power: 2500 watts
• RMS Power: 1250 watts
• Impedance: Dual 4 ohm
• Competition Grade Paper cone
• Foam surround
• Mount depth: 8.65"
• Includes 1 pair of Subwoofer with amplifier

• Sensitivity: 87.08 dB

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• Peak Power: 2500 watts
• RMS Power: 1250 watts
• Impedance: Dual 4 ohm
• Competition Grade Paper cone
• Foam surround
• Mount depth: 8.65"
• Includes 1 pair of Subwoofer with amplifier

• Sensitivity: 87.08 dB

Lowest price in 30 days

Alpine Halo R2-SB10V, R2-A75M & Free Belva BAK42

750W RMS 10" Halo Series Linkable Ported Loaded Subwoofer Enclosure + Monoblock Car Amplifier + 4 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit

R2SB10V_R2A75M_BAK42 big
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Alpine Halo R2-SB10V, R2-A75M & Free Belva BAK42

750W RMS 10" Halo Series Linkable Ported Loaded Subwoofer Enclosure + Monoblock Car Amplifier + 4 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit

• Single 10" Bandpass Ported Subwoofer Enclosure
• 10" Subwoofer(s)
• 2 Set of Terminals
• Enclosure Dimensions: 14.5" TD x BD x W x H

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• Single 10" Bandpass Ported Subwoofer Enclosure
• 10" Subwoofer(s)
• 2 Set of Terminals
• Enclosure Dimensions: 14.5" TD x BD x W x H

Sundown Audio X V.3 18" D2 + NVX XCA3K

2000W RMS 18" X Series Dual 2-ohm Car Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

XV318D2_XCA3K big
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Sundown Audio X V.3 18" D2 + NVX XCA3K

2000W RMS 18" X Series Dual 2-ohm Car Subwoofer with Monoblock Amplifier with LED Remote Bass Knob

• RMS Power: 2000 watts
• Impedance: Triple 2 ohm
• Mount depth: 13.6"
• Sensitivity: 87.6 dB

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• RMS Power: 2000 watts
• Impedance: Triple 2 ohm
• Mount depth: 13.6"
• Sensitivity: 87.6 dB

Lowest price in 30 days

Alpine S2-A55V with Belva 4 Gauge Amp Kit

540W RMS S-Series Class-D 5-Channel Car Amplifier

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Alpine S2-A55V with Belva 4 Gauge Amp Kit

540W RMS S-Series Class-D 5-Channel Car Amplifier

• 40 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 60 watts x 4 channel + 300 watts x 1 channel @ 2 ohm
• Bridged: 120 watts x 2 channel @ 4 ohm + 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 540 watts
• CEA-2006 Compliant
• Class D 2 ohm Stable 5-Channel Amplifier

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• 40 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 60 watts x 4 channel + 300 watts x 1 channel @ 2 ohm
• Bridged: 120 watts x 2 channel @ 4 ohm + 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 540 watts
• CEA-2006 Compliant
• Class D 2 ohm Stable 5-Channel Amplifier

Alpine R2-A150M with NVX 4 Gauge Amp Kit

1500W RMS R-Series Class D Monoblock Amplifier

R2-A150M, XKIT42 big
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Alpine R2-A150M with NVX 4 Gauge Amp Kit

1500W RMS R-Series Class D Monoblock Amplifier

• 700 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• CEA-2006 Compliant
• Class D 1 ohm Stable Monoblock Amplifier

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• 700 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• CEA-2006 Compliant
• Class D 1 ohm Stable Monoblock Amplifier

Alpine KTP-445A with Belva 8 Gauge Amp Kit

Plug and Play Head Unit Power Pack for Use w/ 2005-Up Alpine Head Units with a Black Power Harness

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Alpine KTP-445A with Belva 8 Gauge Amp Kit

Plug and Play Head Unit Power Pack for Use w/ 2005-Up Alpine Head Units with a Black Power Harness

• Power Pack 4-Channel Class D for Select Alpine In-Dash Receivers
• 45W x 4 Chan. @ 4 Ohm
• Adjustable Gain Switch
• Plug-and-Play
• CEA-2006 Compliant

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$356.19

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• Power Pack 4-Channel Class D for Select Alpine In-Dash Receivers
• 45W x 4 Chan. @ 4 Ohm
• Adjustable Gain Switch
• Plug-and-Play
• CEA-2006 Compliant

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    All About Car Amplifier Packages & Bundles

    Amplifier Packages and Bundles Information

    Driving while listening to a superior audio system is one of life's great joys. No matter what type of car you have, upgrading the factory stereo with aftermarket stereo and speaker equipment will have you rocking in your seat and enjoying the drive, not just surviving.

    Most car manufacturers come with stock sound systems that lack power and quality. The most common way people upgrade their car stereos is by installing a new head unit.  This is the in-dash component that allows you to control everything from CDs, AM/FM radio, communication and sometimes vehicle climate control. 

    Amplifiers and subwoofers are necessary to increase the power of the audio system and maintain music fidelity. The amplifier that comes in most head units cannot power upgraded speakers. To get these features while keeping enough energy flowing to the speakers, an amplifier will be needed to ensure each component is getting enough power. Especially if you want to add an aftermarket subwoofer or any specialized speaker. 

     A set of subs increases the base output. Most people associate these with loud music that rattles the bumper – which subwoofers are more than capable of generating. Even so, subs were created to make low frequency sounds that mid-range and factory speakers can’t. You can crank up the bass for a chest thumping experience, or to bring new depth to any musical genre. 

    Replacing the main speakers with excellent tweeters provides the same boost in power and quality for high frequencies.

    Coordinating all the different components necessary to upgrade your car stereo can be tedious. This category is dedicated to packages Sonic Electronix has created to match your desired amplifier and subwoofer, subwoofer and its enclosure, head units and backup cameras, and so on. There are also premium car audio kits that come with a new stereo, subwoofer and speaker box, front speakers, amp, and all the necessary wiring. 

    Sonic Electronix Learning Center: Quick Guide to Car Audio.

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