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  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Amplifiers
  4. Discontinued All Car Amplifiers

Discontinued All Car Amplifiers

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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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EXCLUSIVE

JBL GTR-601 with FREE 100% Copper True Spec Installation Kit

1500W Peak (600W RMS) Monoblock GTR Series Class D Subwoofer Amplifier + 100% Copper, True Spec 8 Gauge Amplifier Installation Kit

GTR-601 XKIT42 big DISCONTINUED
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JBL GTR-601 with FREE 100% Copper True Spec Installation Kit

1500W Peak (600W RMS) Monoblock GTR Series Class D Subwoofer Amplifier + 100% Copper, True Spec 8 Gauge Amplifier Installation Kit

• 380 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 1500 Watts
• Variable low-pass filter: 32 - 320 Hz
• Variable Bass Boost: 0 to +9 dB bass boost
• Signal to Noise Ratio: >80dB

124

• 380 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 1500 Watts
• Variable low-pass filter: 32 - 320 Hz
• Variable Bass Boost: 0 to +9 dB bass boost
• Signal to Noise Ratio: >80dB

EXCLUSIVE

JBL GTR-102 with FREE 100% Copper True Spec Installation Kit

100W RMS 2-Channel Stadium Series Bluetooth Car Amplifier with Clari-Fi Technology and Party Mode + 100% Copper, True Spec 8 Gauge Amplifier Installation Kit

GTR-102 XKIT42 big DISCONTINUED
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JBL GTR-102 with FREE 100% Copper True Spec Installation Kit

100W RMS 2-Channel Stadium Series Bluetooth Car Amplifier with Clari-Fi Technology and Party Mode + 100% Copper, True Spec 8 Gauge Amplifier Installation Kit

• 100 Watts RMS x 2 @ 4 ohm
• 120 Watts RMS x 2 @ 2 ohm
• Total Peak Power: 700 Watts
• Clari-fi™ Technology
• Bluetooth Streaming
• ADAS Input
• Cabin mounted control panel

124

• 100 Watts RMS x 2 @ 4 ohm
• 120 Watts RMS x 2 @ 2 ohm
• Total Peak Power: 700 Watts
• Clari-fi™ Technology
• Bluetooth Streaming
• ADAS Input
• Cabin mounted control panel

Audiopipe APDL-2504

640W Dealer Line Series 4-Channel Class AB Car Amplifier

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Audiopipe APDL-2504

640W Dealer Line Series 4-Channel Class AB Car Amplifier

• RMS Power: 110W x 4 @ 4 ohm, 160W x 4 @ 2 ohm, 300W x 2 @ 4 ohm Bridged
• Total Peak Power: 2100W
• Variable Low-Pass Filter
• Dimensions: 6.92"W x 15.11"L x 2.16"H

• RMS Power: 110W x 4 @ 4 ohm, 160W x 4 @ 2 ohm, 300W x 2 @ 4 ohm Bridged
• Total Peak Power: 2100W
• Variable Low-Pass Filter
• Dimensions: 6.92"W x 15.11"L x 2.16"H

Audiopipe APDL-3502

650W Dealer Line Series 2-Channel Class AB Car Amplifier

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Audiopipe APDL-3502

650W Dealer Line Series 2-Channel Class AB Car Amplifier

• RMS Power: 110W x 4 @ 4 ohm, 160W x 4 @ 2 ohm, 300W x 2 @ 4 ohm Bridged
• Total Peak Power: 2100W
• Variable Low-Pass Filter
• Dimensions: 6.92"W x 15.03"L x 2.16"H

• RMS Power: 110W x 4 @ 4 ohm, 160W x 4 @ 2 ohm, 300W x 2 @ 4 ohm Bridged
• Total Peak Power: 2100W
• Variable Low-Pass Filter
• Dimensions: 6.92"W x 15.03"L x 2.16"H

Audiopipe APDL-16001D

1600W Dealer Line Series Monoblock Class D Car Amplifier

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Audiopipe APDL-16001D

1600W Dealer Line Series Monoblock Class D Car Amplifier

• RMS Power: 650W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 1600W x 1 @ 1 ohm
• Total Peak Power: 1600W
• Variable Low-Pass Filter
• Dimensions: 6.92"W x 14.05"L x 2.16"H

• RMS Power: 650W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 1600W x 1 @ 1 ohm
• Total Peak Power: 1600W
• Variable Low-Pass Filter
• Dimensions: 6.92"W x 14.05"L x 2.16"H

Audiopipe APDL-20001D

2000W Dealer Line Series Monoblock Class D Car Amplifier

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Audiopipe APDL-20001D

2000W Dealer Line Series Monoblock Class D Car Amplifier

• RMS Power: 800W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Total Peak Power: 2000W
• Variable Low-Pass Filter
• Dimensions: 6.92"W x 17.04"L x 2.16"H

• RMS Power: 800W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Total Peak Power: 2000W
• Variable Low-Pass Filter
• Dimensions: 6.92"W x 17.04"L x 2.16"H

Crunch PD4000.4 4000w 4-Channel Pro Power Car Audio Amplifier Class AB+Amp Kit

4000W Max Power Drive Series 4-channel Bridgeable Car Amplifier - Pro Power Edition + Complete 4 Gauge Amplifier Wiring Kit Package

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Crunch PD4000.4 4000w 4-Channel Pro Power Car Audio Amplifier Class AB+Amp Kit

4000W Max Power Drive Series 4-channel Bridgeable Car Amplifier - Pro Power Edition + Complete 4 Gauge Amplifier Wiring Kit Package

• 250 Watts RMS x 4 @ 4 ohm
• 500 Watts RMS x 4 @ 2 ohm
• 1000 Watts RMS x 2 @ 4 ohm Bridged
• Total Peak Power: 4000 Watts
• Variable high-pass filter: 60 - 1200 Hz
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +9 dB bass boost
• Dimensions: 11.4"W x 20"L x 3.8"H

84

• 250 Watts RMS x 4 @ 4 ohm
• 500 Watts RMS x 4 @ 2 ohm
• 1000 Watts RMS x 2 @ 4 ohm Bridged
• Total Peak Power: 4000 Watts
• Variable high-pass filter: 60 - 1200 Hz
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +9 dB bass boost
• Dimensions: 11.4"W x 20"L x 3.8"H

Sundown Audio SALT-1 (Open Box, Like New)

1000W RMS Class D SALT Series Monoblock Car Amplifier

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Sundown Audio SALT-1 (Open Box, Like New)

1000W RMS Class D SALT Series Monoblock Car Amplifier

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• 2000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• 2000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Rockford Fosgate Power T500-1bdCP (Open Box, Like New)

500W RMS Class BD Power Series Monoblock Car Amplifier

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Rockford Fosgate Power T500-1bdCP (Open Box, Like New)

500W RMS Class BD Power Series Monoblock Car Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• Total RMS Power: 500 watts
• Class BD 1 ohm Stable Monoblock Amplifier

16

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• Total RMS Power: 500 watts
• Class BD 1 ohm Stable Monoblock Amplifier

Alpine R2-A75M - New (Damaged Packaging, Product A+)

750W RMS Class D R-Series Monoblock Car Amplifier

R2-A75M big DISCONTINUED
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Alpine R2-A75M - New (Damaged Packaging, Product A+)

750W RMS Class D R-Series Monoblock Car Amplifier

• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable Monoblock Amplifier

Lowest price in 30 days

Rockford Fosgate Punch P400X4 (Open Box, Like New)

400W RMS Class AB Punch Series 4 Channel Car Amplifier

P400X4 big DISCONTINUED
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Rockford Fosgate Punch P400X4 (Open Box, Like New)

400W RMS Class AB Punch Series 4 Channel Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

20

• 50 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Lowest price in 30 days

Rockford Fosgate Punch P1000X1bd (Open Box, Like New)

1000W RMS Class BD Punch Series Monoblock Car Amplifier

P1000X1BD big DISCONTINUED
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Rockford Fosgate Punch P1000X1bd (Open Box, Like New)

1000W RMS Class BD Punch Series Monoblock Car Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class BD 1 ohm Stable Monoblock Amplifier

19

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class BD 1 ohm Stable Monoblock Amplifier

Hertz SP 4.500 (Open-box, Like New)

600W RMS Class D SPL Show Series 4-Channel Compact Full Range Car Amplifier

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Hertz SP 4.500 (Open-box, Like New)

600W RMS Class D SPL Show Series 4-Channel Compact Full Range Car Amplifier

• 4 Channel: 90 watts x 4 channel @ 4 ohm
• 4 Channel: 150 watts x 4 channel @ 2 ohm
• 3 Channel: 80 watts x 2 channel @ 4 ohm + 330 watts x 1 channel @ 4 ohm
• 3 Channel: 145 watts x 2 channel @ 2 ohm + 300 watts x 1 channel @ 4 ohm
• 2 Channel: 300 watts x 2 channel @ 4-ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Marine Amplifier

• 4 Channel: 90 watts x 4 channel @ 4 ohm
• 4 Channel: 150 watts x 4 channel @ 2 ohm
• 3 Channel: 80 watts x 2 channel @ 4 ohm + 330 watts x 1 channel @ 4 ohm
• 3 Channel: 145 watts x 2 channel @ 2 ohm + 300 watts x 1 channel @ 4 ohm
• 2 Channel: 300 watts x 2 channel @ 4-ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Marine Amplifier

Sundown Audio SIA-2500D (Open Box, Great)

2500W RMS Class D SFB Series Monoblock Car Amplifier

SIA-2500D big DISCONTINUED
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Sundown Audio SIA-2500D (Open Box, Great)

2500W RMS Class D SFB Series Monoblock Car Amplifier

• 2000 watts x 1 channel @ 4 ohm
• 2500 watts x 1 channel @ 2 ohm
• 2500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2500 watts
• Class D 1 ohm Stable Monoblock Amplifier

3

• 2000 watts x 1 channel @ 4 ohm
• 2500 watts x 1 channel @ 2 ohm
• 2500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2500 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SAEv.4-1500.1D (Open Box, Great)

1500W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

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Sundown Audio SAEv.4-1500.1D (Open Box, Great)

1500W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

• 450 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 450 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SAM-150.2 (Open Box, Great)

300W RMS Class D 2 Channel Powersport Amplifier with Bluetooth

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Sundown Audio SAM-150.2 (Open Box, Great)

300W RMS Class D 2 Channel Powersport Amplifier with Bluetooth

• 300 watts x 2 channel @ 4 ohm
• 540 watts x 2 channel @ 2 ohm
• Bridged: 540 watts x 1 channel @ 4 ohm
• Total RMS Power: 540 watts
• Class D 2 ohm Stable 2-Channel Amplifier

• 300 watts x 2 channel @ 4 ohm
• 540 watts x 2 channel @ 2 ohm
• Bridged: 540 watts x 1 channel @ 4 ohm
• Total RMS Power: 540 watts
• Class D 2 ohm Stable 2-Channel Amplifier

Lowest price in 30 days

Rockford Fosgate Punch P300X2 (Open Box, Like New)

300W RMS Class AB Punch Series 2 Channel Car Amplifier

P300X2 big DISCONTINUED
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Rockford Fosgate Punch P300X2 (Open Box, Like New)

300W RMS Class AB Punch Series 2 Channel Car Amplifier

• 100 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 A/B 2 ohm Stable 2-Channel Amplifier

9

• 100 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 A/B 2 ohm Stable 2-Channel Amplifier

Sundown Audio SALT-6 Competition (Open Box, Great)

6000W RMS Class D SALT Series Monoblock Car Amplifier

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Sundown Audio SALT-6 Competition (Open Box, Great)

6000W RMS Class D SALT Series Monoblock Car Amplifier

• 1500 watts x 1 channel @ 4 ohm
• 3000 watts x 1 channel @ 2 ohm
• 6000 watts x 1 channel @ 1 ohm
• 12000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 6000 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 1500 watts x 1 channel @ 4 ohm
• 3000 watts x 1 channel @ 2 ohm
• 6000 watts x 1 channel @ 1 ohm
• 12000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 6000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SAM-150.2 (Open Box, Like New)

300W RMS Class D 2 Channel Powersport Amplifier with Bluetooth

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Sundown Audio SAM-150.2 (Open Box, Like New)

300W RMS Class D 2 Channel Powersport Amplifier with Bluetooth

• 300 watts x 2 channel @ 4 ohm
• 540 watts x 2 channel @ 2 ohm
• Bridged: 540 watts x 1 channel @ 4 ohm
• Total RMS Power: 540 watts
• Class D 2 ohm Stable 2-Channel Amplifier

• 300 watts x 2 channel @ 4 ohm
• 540 watts x 2 channel @ 2 ohm
• Bridged: 540 watts x 1 channel @ 4 ohm
• Total RMS Power: 540 watts
• Class D 2 ohm Stable 2-Channel Amplifier

Hertz HCP 4DK (Open-box, Like New)

2000W Peak (880W RMS) Class D Hertz Compact Power (HCP) Series 4-Channel Full Range Car Amplifier

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Hertz HCP 4DK (Open-box, Like New)

2000W Peak (880W RMS) Class D Hertz Compact Power (HCP) Series 4-Channel Full Range Car Amplifier

• 4 Channel: 120 watts x 4 channel @ 4 ohm
• 4 Channel: 220 watts x 4 channel @ 2 ohm
• 3 Channel: 120 watts x 2 channel @ 4 ohm + 440 watts x 1 channel @ 4 ohm
• 3 Channel: 220 watts x 2 channel @ 2 ohm + 440 watts x 1 channel @ 4 ohm
• 2 Channel: 440 watts x 2 channel @ 4-ohm
• Total RMS Power: 1020 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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• 4 Channel: 120 watts x 4 channel @ 4 ohm
• 4 Channel: 220 watts x 4 channel @ 2 ohm
• 3 Channel: 120 watts x 2 channel @ 4 ohm + 440 watts x 1 channel @ 4 ohm
• 3 Channel: 220 watts x 2 channel @ 2 ohm + 440 watts x 1 channel @ 4 ohm
• 2 Channel: 440 watts x 2 channel @ 4-ohm
• Total RMS Power: 1020 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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    FAQ Frequently asked questions in Discontinued All Car Amplifiers

    A car amplifier is an electronic device designed to increase the power of audio signals sent to speakers. It plays a crucial role in enhancing the sound quality of your car audio system by providing additional power to drive the speakers effectively. When you add a car amplifier to your audio setup, you'll experience clearer sound, improved bass response, and overall better audio performance. Whether you're a music enthusiast or simply want to enjoy high-quality audio during your commute, a car amplifier is essential to achieving the best sound experience in your vehicle.
    Selecting the right car amplifier requires considering several factors. Firstly, determine the power requirements of your speakers and subwoofers to match them with an amplifier that provides adequate wattage. Consider the number of channels you need based on your speaker configuration (e.g., 2-channel for front speakers and a separate subwoofer channel). Pay attention to the amplifier's size and compatibility with your vehicle's space limitations. Also, look for features like high-level inputs, built-in crossovers, and adjustable gain controls for fine-tuning your audio output. Consulting with an expert or using online tools, like Sonic Electronix's AmpliFinder, can help you find the perfect match for your car audio needs.
    The ability to install a car amplifier yourself depends on your level of technical expertise and experience with car audio systems. While some enthusiasts with prior knowledge may successfully complete the installation, it's often recommended to seek professional installation for the best results. Professional installers have the expertise to ensure proper wiring, grounding, and secure mounting to prevent any potential damage to your vehicle. They can also optimize the amplifier settings to achieve the best sound quality and prevent any interference or noise issues. Professional installation ensures a safe and reliable setup, providing peace of mind and preserving your car's warranty.
    Yes, most multi-channel car amplifiers can be bridged to combine two channels into one, effectively doubling the power output to a single speaker or subwoofer. Bridging is beneficial in situations where you want to power a high-powered subwoofer with increased wattage. By bridging channels, you can achieve a mono output that drives the subwoofer with more power, resulting in stronger and deeper bass response. However, when bridging, it's crucial to follow the amplifier's guidelines and use the correct impedance load to avoid damaging the amplifier or speakers.
    In general, a car amplifier is not a significant drain on your car's battery when the vehicle is running. However, if you leave the amplifier powered on while the engine is off, it can slowly draw power from the battery, which may eventually lead to a dead battery if left unattended for an extended period. To prevent this, ensure that the amplifier is wired properly to a switched power source that turns off when the car is not in use. Additionally, using a high-quality car battery and monitoring its health regularly will help maintain optimum power delivery and prevent any issues related to battery drainage.
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