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  • Sound Storm Lab® - Charge Series 1200W 2-Channel Class AB Amplifier
    0
    # mpn4716874862
    Charge Series 1200W 2-Channel Class AB Amplifier by Sound Storm Lab®. Get lots of rich, deep, vibrating bass and power for your sound system with this high-tech amplifier from Sound Storm Lab. Incorporating the latest technology, this...
    2 Ohm Stable - The lowest impedance accepted by this amplifier is 2 Ohm. Amplifiers that are 2 Ohm stable produce more power resulting in more volume. This amp can comfortably power speakers or subwoofers with all channel(s) being used at a load of 2 OhmBridgeable - Bridging an amplifier means to combine channels of a multi-channel amplifier to get more power or flexibility out of it. For instance, on a 4 channel amp, channels 1 and 2 could be used normally for your speakers, and channels 3 and 4 can be bridged for more power to a single subwoofer. A 2 channel amp can also be bridged to power a single subwoofer
    $74.09
  • ACDelco® - GM Original Equipment™ Audio Amplifier
    2
    # sp10423
    GM Original Equipment™ Audio Amplifier by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $30.63 - $961.12
  • Audiopipe® - 4 AWG Amplifier Wiring Kit
    0
    # 3836073468
    4 AWG Amplifier Wiring Kit by Audiopipe®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $26.46
  • Audiopipe® - BMS Series 4 AWG Amplifier Wiring Kit
    0
    # mpn4750657670
    BMS Series 4 AWG Amplifier Wiring Kit by Audiopipe®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $22.04
  • DS18® - ELITE Series Class D Mono 1500W 1 Ohm Amplifier
    0
    # mpn4716874893
    ELITE Series Class D Mono 1500W 1 Ohm Amplifier by DS18®. Over time evolution is inevitable. The same can be said for DS18's new Z series model of amplifiers! DS18® took one of DS18® best selling lines and upgraded every aspect of it....
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $324.95
  • DS18® - PRO Series Full Range Class D Mono 3000 RMS 1 Ohm Amplifier
    0
    # mpn4716874857
    PRO Series Full Range Class D Mono 3000 RMS 1 Ohm Amplifier by DS18®. DS18 strives in getting DS18® customers the latest and greatest technology with every product DS18® produce. Now DS18® have developed out latest series of full...
    Full range Capable Class - D AmpCompact Size and wide Band Crossover for more applications
    $344.95
  • DS18® - PRO Series Full Range Class D Mono 5000 RMS 1 Ohm Amplifier
    0
    # mpn4716874859
    PRO Series Full Range Class D Mono 5000 RMS 1 Ohm Amplifier by DS18®. DS18 strives in getting DS18® customers the latest and greatest technology with every product DS18® produce. Now DS18® have developed out latest series of full...
    Full range Capable Class - D AmpCompact Size and wide Band Crossover for more applications
    $515.95
  • DS18® - PRO Series Full Range Class D Mono 5000 RMS 2 Ohm Amplifier
    0
    # mpn4716874885
    PRO Series Full Range Class D Mono 5000 RMS 2 Ohm Amplifier by DS18®. DS18 strives in getting DS18® customers the latest and greatest technology with every product DS18® produce. Now DS18® have developed out latest series of full...
    Full range Capable Class - D AmpCompact Size and wide Band Crossover for more applications
    $549.95
  • DS18® - PRO Series Full Range Class D Mono 8000 RMS 1 Ohm Amplifier
    0
    # mpn4716874874
    PRO Series Full Range Class D Mono 8000 RMS 1 Ohm Amplifier by DS18®. DS18 strives in getting DS18® customers the latest and greatest technology with every product DS18® produce. Now DS18® have developed out latest series of full...
    Full range Capable Class - D AmpCompact Size and wide Band Crossover for more applications
    $689.95
  • DS18® - PRO Series Full Range Class D Mono 8000 RMS 2 Ohm Amplifier
    0
    # mpn4716874861
    PRO Series Full Range Class D Mono 8000 RMS 2 Ohm Amplifier by DS18®. DS18 strives in getting DS18® customers the latest and greatest technology with every product DS18® produce. Now DS18® have developed out latest series of full...
    Full range Capable Class - D AmpCompact Size and wide Band Crossover for more applications
    $724.95
  • DS18® - SELECT Series Class D Mono 2500W 1 Ohm Amplifier
    0
    # 3455706789
    SELECT Series Class D Mono 2500W 1 Ohm Amplifier by DS18®. DS18's Select series of amplifiers bring elegance and great power for a very nice price point. These amps come in brushed aluminum red or silver to really catch the eye from...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $214.95
  • DS18® - SELECT Series Class D Mono 3500W 1 Ohm Amplifier
    0
    # 3455706747
    SELECT Series Class D Mono 3500W 1 Ohm Amplifier by DS18®. DS18's Select series of amplifiers bring elegance and great power for a very nice price point. These amps come in brushed aluminum red or silver to really catch the eye from...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $259.95
  • DS18® - SELECT Series Full Range Class AB Mono 1500W 2 Ohm Amplifier
    0
    # 3455706754
    SELECT Series Full Range Class AB Mono 1500W 2 Ohm Amplifier by DS18®. DS18's Select series of amplifiers bring elegance and great power for a very nice price point. These amps come in brushed aluminum red or silver to really catch the...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $169.95
  • DS18® - ELITE Series Full Range Class D 4-Channel 1200W 2 Ohm Amplifier
    0
    # mpn4716874878
    ELITE Series Full Range Class D 4-Channel 1200W 2 Ohm Amplifier by DS18®. Over time evolution is inevitable. The same can be said for DS18's new Z series model of amplifiers! DS18® took one of DS18® best selling lines and upgraded...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $329.95
  • DS18® - SELECT Series Full Range Class AB 4-Channel 1200W 1 Ohm Amplifier
    0
    # 3455706797
    SELECT Series Full Range Class AB 4-Channel 1200W 1 Ohm Amplifier by DS18®. DS18's Select series of amplifiers bring elegance and great power for a very nice price point. These amps come in brushed aluminum red or silver to really catch...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $134.95
  • DS18® - SELECT Series Full Range Class AB 4-Channel 1800W 2 Ohm Amplifier
    0
    # 3455706802
    SELECT Series Full Range Class AB 4-Channel 1800W 2 Ohm Amplifier by DS18®. DS18's Select series of amplifiers bring elegance and great power for a very nice price point. These amps come in brushed aluminum red or silver to really catch...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $199.95
  • DS18® - SELECT Series Full Range Class D 4-Channel 1500W 2 Ohm Amplifier
    0
    # 3455706738
    SELECT Series Full Range Class D 4-Channel 1500W 2 Ohm Amplifier by DS18®. DS18's Select series of amplifiers bring elegance and great power for a very nice price point. These amps come in brushed aluminum red or silver to really catch...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $189.95
  • DS18® - SELECT Series Full Range Class D 4-Channel 3000W 2 Ohm Amplifier
    0
    # 3455706776
    SELECT Series Full Range Class D 4-Channel 3000W 2 Ohm Amplifier by DS18®. DS18's Select series of amplifiers bring elegance and great power for a very nice price point. These amps come in brushed aluminum red or silver to really catch...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $244.95
  • DS18® - ELITE Series Full Range Class D 2-Channel 500W 2 Ohm Amplifier
    0
    # mpn4716874894
    ELITE Series Full Range Class D 2-Channel 500W 2 Ohm Amplifier by DS18®. Over time evolution is inevitable. The same can be said for DS18's new Z series model of amplifiers! DS18® took one of DS18® best selling lines and upgraded...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $219.95
  • DS18® - SELECT Series Full Range Class AB 2-Channel 1100W 2 Ohm Amplifier
    0
    # 3455706773
    SELECT Series Full Range Class AB 2-Channel 1100W 2 Ohm Amplifier by DS18®. DS18's Select series of amplifiers bring elegance and great power for a very nice price point. These amps come in brushed aluminum red or silver to really catch...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $124.95
  • DS18® - SELECT Series Full Range Class AB 2-Channel 1600W 2 Ohm Amplifier
    0
    # 3455706829
    SELECT Series Full Range Class AB 2-Channel 1600W 2 Ohm Amplifier by DS18®. DS18's Select series of amplifiers bring elegance and great power for a very nice price point. These amps come in brushed aluminum red or silver to really catch...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $139.95
  • Audio Control® - 6-Way Converter with Accubass™
    0
    # mpn4717916287
    6-Way Converter with Accubass™ by Audio Control®. The AudioControl LC7i, six channel active line converter, allows all music lovers, who want a great in-car audio experience, to keep their factory installed source unit and...
    Six channels of active speaker level inputs - accepts up to 400W per channelPatent Pending AccuBASS™ circuitry
    $149.12
  • DS18® - GEN-X Series Class D Mono 4500W 1 Ohm Amplifier
    0
    # mpn4495252809
    GEN-X Series Class D Mono 4500W 1 Ohm Amplifier by DS18®. The DS18 GEN-X line was developed with the customer in mind. DS18 wanted to produce the sturdiest amplifier possible within a reasonable price range, and after months of R&D DS18...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $344.95
  • DS18® - GEN-X Series Class D Mono 6000W 1 Ohm Amplifier
    0
    # mpn4495252575
    GEN-X Series Class D Mono 6000W 1 Ohm Amplifier by DS18®. The DS18 GEN-X line was developed with the customer in mind. DS18 wanted to produce the sturdiest amplifier possible within a reasonable price range, and after months of R&D DS18...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $429.95
  • DS18® - GEN-X Series Class AB 2-Channel 1200W 2 Ohm Amplifier
    0
    # mpn4495252571
    GEN-X Series Class AB 2-Channel 1200W 2 Ohm Amplifier by DS18®. The DS18 GEN-X line was developed with the customer in mind. DS18 wanted to produce the sturdiest amplifier possible within a reasonable price range, and after months of...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $187.95
  • DS18® - GEN-X Series Class AB 2-Channel 2000W 2 Ohm Amplifier
    0
    # mpn4495252620
    GEN-X Series Class AB 2-Channel 2000W 2 Ohm Amplifier by DS18®. The DS18 GEN-X line was developed with the customer in mind. DS18 wanted to produce the sturdiest amplifier possible within a reasonable price range, and after months of...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $209.95
  • Audio Control® - Amplifier Dash Level Remote
    0
    # 3836073448
    Amplifier Dash Level Remote by Audio Control®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $28.56
  • Sound Storm Lab® - Evolution Series 400W 4-Channel Class AB Amplifier
    1
    # mpn4644768022
    Evolution Series 400W 4-Channel Class AB Amplifier by Sound Storm Lab®. Get lots of rich, deep, vibrating bass and power for your sound system with this high-tech amplifier from Sound Storm Lab. Incorporating the latest technology, this...
    2 Ohm Stable - The lowest impedance accepted by this amplifier is 2 ohms. Amplifiers that are 2 ohms stable produce more power resulting in more volume. This amp can comfortably power speakers or subwoofers with all channel(s) being used at a load of 2 ohmsClass A/B - Class A/B amplifiers have long been known for their ability to produce great quality sound while performing more efficiently than pure Class A amplifiers. Sound Storm Lab have developed a specific linear circuitry that further reduces distortion while increasing both sound quality and power output
    $52.60
  • Sound Storm Lab® - Evolution Series 400W 4-Channel Class AB Mini Amplifier
    1
    # mpn4644768177
    Evolution Series 400W 4-Channel Class AB Mini Amplifier by Sound Storm Lab®. Get lots of rich, deep, vibrating bass and power for your sound system with this high-tech amplifier from Sound Storm Lab. Incorporating the latest technology,...
    2 Ohm Stable - The lowest impedance accepted by this amplifier is 2 ohms. Amplifiers that are 2 ohms stable produce more power resulting in more volume. This amp can comfortably power speakers or subwoofers with all channel(s) being used at a load of 2 ohmsClass A/B - Class A/B amplifiers have long been known for their ability to produce great quality sound while performing more efficiently than pure Class A amplifiers. Sound Storm Lab have developed a specific linear circuitry that further reduces distortion while increasing both sound quality and power output
    $52.60
  • DS18® - Candy Series Class D Mono 1800W 1 Ohm Mini Amplifier
    0
    # mpn4529931828
    Candy Series Class D Mono 1800W 1 Ohm Mini Amplifier by DS18®. The DS18 CANDY Series offers mini, compact amplifers that not only have the juice to power your system but will also save you a ton of space in your car or bike. Don’t...
    High in power, efficient in performance, reliable in serviceUser-friendly design, ergonomic handle, solid construction
    $199.95




You know that you need an amplifier in your car’s audio system if you want thumping, window-rattling, trunk-vibrating bass, but adding such a device will provide so much more than you expect. With a high quality unit, you’ll get much better overall sound quality. And if you’ve upgraded your speakers or added a new subwoofer, a separate amplifier will provide the power needed to get the most out of them. It will do the job a dash-mounted receiver just can’t handle. In this article, we will discuss some of the matters influencing the resulting sound quality in your vehicle, including:

  • amp classification
  • speaker setup
  • power rating
  • frequency filters
  • bass boost

Big Bang for Your Buck

Amplifiers are categorized according to their classification, number of channels, and power rating in watts. The class of the device refers to its circuit design. There are Class A, B, A/B, and Class D amplifiers, with the last two being the ones most commonly used in car stereo applications. Class A units feature a simple design, the highest linearity over other types, and produce the best sound quality. However, they are inefficient because current flows through their output transistors all the time.

Energy Savings = Distortion

Class B amplifiers are the most efficient because the output transistors pass current only when there is an audio signal, but they produce a lot of distortion. The A/B type is a combination of the Class A and B amps, with a small amount of current flowing all the time, even when there is no audio signal, which results in greater efficiency with almost no distortion. Such devices are one of the most commonly used types of automotive audio amplifier design. In Class D units, the transistors are switched on and off. These amps are more efficient than their A/B counterparts but produce more distortion. However, this distortion can be removed with a filter.

Understanding Channels

Before choosing an amplifier for your audio system, you need to decide how you intend to use it and how many channels it should have. Usually, the number of channels should match the number of speakers in your system. As the name suggests, a mono amp is designed for one speaker, usually a subwoofer, however, two subwoofers can be connected to such a device. 2-channel units are for two speaker systems, and so on. For example, 5-channel amplifiers are for 4 speakers and a subwoofer. Some equipment can have a “bridged” structure, meaning that 2 channels can be combined into one for more power. A 4-channel amp could power two speakers and then have the remaining channels bridged to hook up a subwoofer.

Root Mean Square

The amplifier’s power rating should coincide with your speakers’ RMS or continuous power rating. If this rating is given in a range, go with the higher number. This is especially important to get maximum performance from aftermarket speakers. For best sound quality the amplifier should deliver at least 75% of the speaker’s RMS rating, and the average setup can handle up to 150% of this rating without any problems. It’s always better to overpower speakers rather than under power them. The distortion caused when you make the most of a weak amp is more likely to harm a speaker than too much power. If you’re building a system from scratch, a small car won’t need as much oomph as a larger vehicle.

It’s All About the Bass

In addition to the mentioned above, there are other features that you’ll commonly see in amplifier listings, like filters and bass boost. There are high pass and low pass filters. A high pass filter removes low frequencies so the amp is only boosting the high frequencies sent to small speakers for high notes, while the low pass filter takes out the high frequencies, such as would be common when powering a subwoofer. Variable filters allow you to select the frequency to be filtered. Variable bass boost control allows you to increase the bass level to tailor the sound quality. Whatever amplifier you need, on our website you'll surely find the right product for your audio system.

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Car Amplifiers Reviews

98 reviews  /  Read All Amplifiers Reviews
5 of 5
Soundstream 6000d
Excelent amp I run it at. 5 ohms and it loves it. My 4 15" gravity competition subs hit so hard its rediculous. I've used this amp for 3 or 4 systems and it excels everytime. I could kick myself for selling this amp, now I'm hunting for one.
Posted by Customer / November 01, 20202006 Ford Escape
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