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Infinity DSP6840 (DSP6840AM) (Like New (Open Box))

1000W Peak (480W RMS) Class D DSP Series 8 Channel Car Amplifier with Digital Signal Processing

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1000W Peak (480W RMS) Class D DSP Series 8 Channel Car Amplifier with Digital Signal Processing

• 40 watts x 8 channel @ 4 ohm
• 60 watts x 8 channel @ 2 ohm
• Total RMS Power: 480 watts
• Class D 2 ohm Stable 8-Channel Amplifier

Save an Extra 10% on Open Box at Checkout!
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Was $539.95 Details
$412.21

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Infinity Kappa One K (KAPPAONEKAM) (Open Box, Good)

2600W Peak (1000W RMS) Kappa Series Class-D Monoblock Amplifier with Bass Remote

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2600W Peak (1000W RMS) Kappa Series Class-D Monoblock Amplifier with Bass Remote

• 700 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

Save an Extra 10% on Open Box at Checkout!
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Was $539.95 Details
$219.99

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Infinity DSP4425 - Open Box, Great

4-channel Class A/B Amplifier Design, with 2-channel pre-amp outputs & Digital Signal Processing

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4-channel Class A/B Amplifier Design, with 2-channel pre-amp outputs & Digital Signal Processing

• 25 Watts RMS x 4 @ 4 ohm
• Total Peak Power: 200 Watts

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Was $369.95 Details
$223.96

In stock

• 25 Watts RMS x 4 @ 4 ohm
• Total Peak Power: 200 Watts

Infinity Kappa Perfect 3002A - New (Damaged Packaging, Product A+)

300W RMS Kappa Series Class-D 2-Channel Compact Powersports Amplifier

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300W RMS Kappa Series Class-D 2-Channel Compact Powersports 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 D 2 ohm Stable 2-Channel Amplifier

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FREE 2-day shipping to OH. Get it Thu, Nov. 20

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Was $439.95 Details
$307.96

In stock

• 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 D 2 ohm Stable 2-Channel Amplifier

Infinity Reference 7005A - New (Damaged Packaging, Product A+)

800W RMS Reference Series Class AB/D 5-Channel Amplifier

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800W RMS Reference Series Class AB/D 5-Channel Amplifier

• 50 watts x 4 channel + 320 watts x 1 channel @ 4 ohm
• 75 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 800 watts
• Class AB / D 2 ohm Stable 5-Channel Amplifier

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$431.95

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Infinity DSP4425 (INFDSP4425AM) - New (Damaged Packaging, Product A+)

200W Peak (140W RMS) DSP Series Class-AB 4-Channel Amplifier with Digital Signal Processing

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200W Peak (140W RMS) DSP Series Class-AB 4-Channel Amplifier with Digital Signal Processing

• 25 watts x 4 channel @ 4 ohm
• 35 watts x 2 channel @ 2 ohm
• Total RMS Power: 140 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

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Was $369.95 Details
$284.82

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• 25 watts x 4 channel @ 4 ohm
• 35 watts x 2 channel @ 2 ohm
• Total RMS Power: 140 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Infinity INFDSP6840 - New (Damaged Packaging, Product A+)

1000W Peak (480W RMS) DSP Series Class-D 8-Channel Amplifier with Digital Signal Processing (DSP)

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1000W Peak (480W RMS) DSP Series Class-D 8-Channel Amplifier with Digital Signal Processing (DSP)

• 40 watts x 8 channel @ 4 ohm
• 60 watts x 8 channel @ 2 ohm
• Total RMS Power: 480 watts
• Class D 2 ohm Stable 8-Channel Amplifier

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FREE 2-day shipping to OH. Get it Thu, Nov. 20

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Was $539.95 Details
$412.21

In stock

Only 1 Left!

Infinity Reference 3004A - New (Damaged Packaging, Product A+)

400W RMS Reference Series Class-H 4-Channel Amplifier

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400W RMS Reference Series Class-H 4-Channel Amplifier

• 75 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 H 2 ohm Stable 4-Channel Amplifier

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$287.95

In stock

• 75 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 H 2 ohm Stable 4-Channel Amplifier

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    FAQ Frequently asked questions in Car Amplifiers


    The main considerations for matching a car amplifier to a subwoofer are RMS Power Ratings, Impedance, and the type of amp. Typically, we recommend finding an amplifier that can deliver 110% of the rated power of the sub at the impedance necessary to avoid as much clipping (Distortion) as possible at the rated power. The amplifiers to consider are typically single-channel amplifiers. However, a 2-channel amp will work in low pass filter mode, and a 5-channel amp is great when you want a single amplifier to power your sub and multiple speakers. Read more about Matching Amps with Subs at the Sonic Electronix knowledge base. Read more about Matching Amps with Subs at the Sonic Electronix knowledge base.
    You can connect an aftermarket car amp to most modern OEM factory car stereos by using a Line output converter (or LOC for short). You can connect an aftermarket car audio amplifier to most modern OEM factory car stereos by using a Line output converter (or LOC for short). A LOC is engineered to convert high-level signal of your factory radio to low-level RCA signal to your amp. Further, an LOC will help make sure you do not suffer bass roll-off or other sound loss resulting from the factory stereo's preset EQ curves. An alternative to adding an LOC would be to shop for an amp with speaker level inputs (or high-level inputs); however, these solutions tend to not account for the aforementioned bass/sound-roll off with modern vehicles, and therefore is not as recommended as simply integrating an LOC with your amp.
    You can connect an aftermarket car amp to popular aftermarket car stereos by using the built-in preamp outputs of the aftermarket stereo for easy installation. This is one of the primary reasons customers love buying an aftermarket stereo when possible. However, this trend is slowing due to vehicle manufacturers making it incredibly difficult to change the factory stereo in modern vehicles.

    In addition to vehicle manufacturer challenges, if you own an aftermarket stereo that is entry-level or does not have preamp outputs, then you will need to purchase a line output converter (or LOC for short). A LOC will help deliver the proper preamp signal your amp needs as it will convert the high-level output signal from your aftermarket radio to the low-level outputs to the amplifier. There are select amplifiers that have built-in LOCs. However, they tend to be more expensive..

    Amplifiers are engineered to convert these electrical signals by a few different methods called "classes." The most common amplifier classes are A/B and D. The most popular option in amplifiers is Class D. They are the most efficient and stay cooler than Class A/B, and they have a smaller footprint so they can be installed virtually anywhere. Though Class A/B traditionally were reserved for high-fidelity applications, in today's world we see them becoming less and less popular. They are usually reserved for many entry level situations where the manufacturer wants to avoid the higher cost of a Class D chip. Read more about Amp Classes at the Sonic Electronix knowledge base.
    An amplifier will provide higher volume, more power, and less distortion. These external amps provide cleaner audio signals versus your head unit and factory equipment. Before upgrading your factory speakers, you can add an amplifier and see if there is a significant change to your speakers. Often times it is enough to bring your entire audio system to life without having to purchase additional speakers. Read more about matching speakers to car amps at the Sonic Electronix knowledge base.

    All About

    Car Amplifiers

    A car amplifier acts as the centerpiece of any state-of-the-art sound system. To power your car's aftermarket stereo, you'll need an amplifier. Simply said, an amplifier in a car takes a weak signal from its source (the stereo) and boosts it to an audible level. 

    Amplifying your speakers will allow them to reach their maximum potential, as signals from source devices are normally quite low voltage, which is good for most speakers (but not subwoofers). A source unit can power your speakers, but a subwoofer needs an amplifier. Your system's sound quality and volume will both benefit from an increase in its power.

    Shop and find the best car amplifiers, audio amplifiers that include Monoblock car amps, 4-channel amplifiers, 2-channel power amps, and even 5-channel and 6-channel models. Additionally, you can find Class AB amps and shop for Class D amps for specific types of amp circuitry. If you are in need of a car amp to play music and audio directly from your phone to an amp, then check out our Bluetooth car amplifiers. They work great for old school renovators or ATV/UTV owners who want to pair directly to their system without a stereo or altering the look of the dash.

    A car amplifier acts as the centerpiece to any state of the art sound system. Any audio system that features subwoofers must have at least one amp to provide enough power for the speaker to operate as it was designed. A head unit, even one with an internal amp, is simply not enough to power the subwoofers. Not all speakers require amplifiers, but they sound better when they are hooked up to one. Speakers are powered by multi-channel amplifiers, primarily 4-channel amps or 2-channel amps. Like with subwoofers, the RMS power of your amp should match, or slightly exceed that of your subs or speakers to get the best performance. This power delta is commonly referred to as "headroom" and essentially allows your speaker or sub to receive adequate power and not suffer from distorted or stressed power situations. To power more than one speaker, like a set of tweeters, midrange and subwoofers, you'll want to consider more amplifier channels, such as 3-channel amps and 5+ channel amps.

    We also offer amplifier installation & accessories, wiring kits, car batteries, high output alternators, and othersound processing equipment you may need to complete your system.

    Let us help you choose the right car amp. If you have any questions, give us a call at 1-502-200-8010. Our staff will help you in selecting the perfect setup so you can start building your first class car audio system today!

    Different Amplifier Class

    Amplifiers are engineered to convert these electrical signals by a few different methods called “classes.” The most common amplifier classes are AB and D. 

    Class AB amplifiers take up a significant amount of space and are used in Hi-Fi systems, while Class D amplifiers are known to be more efficient, can fit in tight spaces, and are the standard amplifiers used in today’s vehicles. 

    Amplifier Configurations

    When looking for an amplifier, it’s important to know what you intend to use it for. 

    If you’re simply adding a subwoofer to your system you will only need a monoblock or a 2-channel amp. With a complete system (4 speakers and a subwoofer) your best bet is can range from a 3-channel, 4-channel, 5-channel or multi-channel amplifier

    It is critical to the success of your sound system that you match up all of your equipment (speakers, subwoofer, source unit) with the right amplifier to make sure everything is powered properly to give you the best sound possible.

    Further reading at Sonic Electronix Learning Center: 

    Looking for the best quality car amplifiers to take your car audio experience to the next level? Look no further! At Sonic Electronix, we offer a wide range of top-notch car amplifiers that are sure to elevate your in-car entertainment. Explore our selection now and find the perfect amplifier that suits your audio needs.

    In the world of car audio, a high-quality car amplifier is an essential component for achieving exceptional sound performance. Whether you're a music aficionado or simply enjoy immersive audio during your daily commute, a car amplifier is your ticket to unparalleled sound quality. So, what exactly is a car amplifier, and why is it so crucial? A car amplifier is an electronic device designed to increase the power of audio signals sent to the speakers, ensuring that they receive sufficient power to produce clear, detailed, and distortion-free sound. It acts as a powerhouse for your car's audio system, enabling your speakers and subwoofers to perform at their best potential. Enhanced Sound Quality: One of the most significant advantages of having a car amplifier is the dramatic improvement in sound quality. The added power from the amplifier allows your speakers and subwoofers to reproduce audio with greater accuracy and clarity, resulting in a more immersive listening experience. Better Bass Response: If you crave deep, powerful bass, a car amplifier is a must-have. Amplifiers can deliver the extra power required to drive subwoofers effectively, resulting in punchier and more impactful bass performance. Reduced Distortion: When your car's audio system is underpowered, speakers may struggle to handle high volume levels, leading to distortion. With a car amplifier, the power is distributed efficiently, minimizing distortion even at high volumes. Flexibility in Speaker Selection: By using a car amplifier, you can choose from a wider range of speakers and subwoofers, as you're not limited to those that can be powered directly by the head unit. This opens up more possibilities for customizing your audio setup.

    At Sonic Electronix, we take pride in offering an extensive selection of top-quality car amplifiers from leading brands. Our team of audio experts is dedicated to helping you find the perfect amplifier that matches your specific requirements. Whether you need a compact 2-channel amplifier for your front speakers or a high-powered mono amp for a subwoofer, we have got you covered. How We Help You Find the Best Car Amplifiers: Expert Assistance: Our knowledgeable staff is always ready to assist you in choosing the ideal car amplifier for your setup. We understand that every audio system is unique, and we'll work closely with you to ensure you get the best match. Unparalleled Customer Service: At Sonic Electronix, customer satisfaction is our top priority. When you reach out to us, you'll experience exceptional customer service, prompt responses, and valuable insights. Phone Support: Don't hesitate to call our dedicated phone line at 1-502-200-8010 to speak with one of our car audio experts. We're here to answer your questions, offer advice, and guide you towards the perfect amplifier for your needs.

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    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
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