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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.
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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.
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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.
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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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The lowest impedance the amplifier will handle when it is not bridged.
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The lowest impedance the amplifier will handle when it is bridged.
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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.
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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.
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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.
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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.

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This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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Cadence CEQ-773

7-Band Paragraphic Equalizer & Subwoofer Crossover

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7-Band Paragraphic Equalizer & Subwoofer Crossover

7-Band Paragraphic Equalizer • Full Aircraft-Style Night Illumination • 105dB Signal-To-Noise Ratio • 7 Volt Output

7-Band Paragraphic Equalizer • Full Aircraft-Style Night Illumination • 105dB Signal-To-Noise Ratio • 7 Volt Output

CEQ-773 small

Item added to your cart.

Price: $39.99

Essential add-ons
NVX XWS1625 25 ft. of 16 Gauge Speaker Cable/Wire

25 ft. of True Spec 16 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$29.99

$19.99

Add to cart

Cadence XS682

300W Peak (100W RMS) 6x8" 2-Way Xenith Series Coaxial Car Speakers

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300W Peak (100W RMS) 6x8" 2-Way Xenith Series Coaxial Car Speakers

• Peak Power: 300W
• RMS Power: 100W
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 2.05"
• Polypropylene Cone and Rubber Surround

• Peak Power: 300W
• RMS Power: 100W
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 2.05"
• Polypropylene Cone and Rubber Surround

Cadence ZRS30T

120W 1" XT Series 4-Ohm Silk Soft Dome Neodymium Tweeters

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120W 1" XT Series 4-Ohm Silk Soft Dome Neodymium Tweeters

• Peak Power: 120W
• RMS Power: 60W
• (1" XT Series 4-Ohm Silk Soft Dome Neodymium
• Mounting Depth: 0.75"
• Ferro-Fluid Cooled Voice Coil with High Temperature ASB Housing

• Peak Power: 120W
• RMS Power: 60W
• (1" XT Series 4-Ohm Silk Soft Dome Neodymium
• Mounting Depth: 0.75"
• Ferro-Fluid Cooled Voice Coil with High Temperature ASB Housing

Cadence Q652

250W Peak (150W RMS) 6.5" 2-Way Q-Series Coaxial Car Speakers

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250W Peak (150W RMS) 6.5" 2-Way Q-Series Coaxial Car Speakers

• 250W Max / 100W RMS
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 2.21"
• Polypropylene Cone and Rubber Surround

• 250W Max / 100W RMS
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 2.21"
• Polypropylene Cone and Rubber Surround

Cadence XM694Vi

250W 6"x9" 4-ohm Xenith Series Mid Range Car Speaker

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250W 6"x9" 4-ohm Xenith Series Mid Range Car Speaker

• 250 Watts Max, 125 Watts RMS
• Kevlar Reinforced Black Pulp Cone
• Super SPL Cloth Accordion Surround
• 4 Ohms Impedance
• Sensitivity: 102 dB
• Mounting Depth: 3.15"

• 250 Watts Max, 125 Watts RMS
• Kevlar Reinforced Black Pulp Cone
• Super SPL Cloth Accordion Surround
• 4 Ohms Impedance
• Sensitivity: 102 dB
• Mounting Depth: 3.15"

Cadence CV12D2 (CV 12D2)

500W Max (250W RMS) 12" CV Series Dual 2 ohm Car Subwoofer

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500W Max (250W RMS) 12" CV Series Dual 2 ohm Car Subwoofer

• 500 Watts Max
• 250 Watts RMS
• Mica Filled Polypropylene Cone
• Rubber Surround
• Stamped Steel Basket

• 500 Watts Max
• 250 Watts RMS
• Mica Filled Polypropylene Cone
• Rubber Surround
• Stamped Steel Basket

CV12D2 small

Item added to your cart.

Price: $29.99

Essential add-ons
Single 12" Sealed Subwoofer Enclosure

Durable 3/4" Medium Density Fiberboard (MDF) Construction

$109.99

$69.99

Add to cart
NVX 20 ft. of True Spec 8 Gauge Speaker Wire

Flexible multi-strand cable bends and twists to meet your installation needs.

$64.99

$49.99

Add to cart
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

$6.99

Add to cart
NVX SDTK20

20 Square Feet of Sound Damping Material

$89.99

$59.99

Add to cart
Dynamat Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

$236.95

$149.95

Add to cart
NVX SDRLR1 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

$9.99

$7.99

Add to cart
NVX SDRLR2 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

$11.24

$8.99

Add to cart
Belva BAMMD1

Six Function Digital Multimeter

$14.99

$6.99

Add to cart
Belva BAMMD3

Nine Function Digital Multimeter

$29.99

$9.99

Add to cart

Cadence Q65K

300W Peak (130W RMS) 6.5" 2-Way Q Series Component Car Speaker System

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300W Peak (130W RMS) 6.5" 2-Way Q Series Component Car Speaker System

• 300W Max / 130W RMS
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 2.45"
• Polypropylene Cone and Rubber Surround

• 300W Max / 130W RMS
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 2.45"
• Polypropylene Cone and Rubber Surround

Cadence XW12D4

200W RMS, Xenith Series 12" Dual 4 ohm Car Subwoofer

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200W RMS, Xenith Series 12" Dual 4 ohm Car Subwoofer

12" Dual 4 ohm Voice Coil Ultradrive Series Subwoofer • 400W MAX • 200W RMS • Inverted Acrylic Laminate Woofer Cone • Butyl Oversize Rubber Surround • Single Pole Technology • Extended Magnet Motor Structure • 1.5" Six Layer Kapton BASV Voice Coil

12" Dual 4 ohm Voice Coil Ultradrive Series Subwoofer • 400W MAX • 200W RMS • Inverted Acrylic Laminate Woofer Cone • Butyl Oversize Rubber Surround • Single Pole Technology • Extended Magnet Motor Structure • 1.5" Six Layer Kapton BASV Voice Coil

XW12D4 small

Item added to your cart.

Price: $69.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX 20 ft. of True Spec 8 Gauge Speaker Wire

Flexible multi-strand cable bends and twists to meet your installation needs.

$64.99

$49.99

Add to cart
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

$6.99

Add to cart
NVX SDTK20

20 Square Feet of Sound Damping Material

$89.99

$59.99

Add to cart
Dynamat Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

$236.95

$149.95

Add to cart
NVX SDRLR1 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

$9.99

$7.99

Add to cart
NVX SDRLR2 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

$11.24

$8.99

Add to cart
Belva BAMMD1

Six Function Digital Multimeter

$14.99

$6.99

Add to cart
Belva BAMMD3

Nine Function Digital Multimeter

$29.99

$9.99

Add to cart

Cadence QR652

300W 6.5" QR Series Coaxial Car Speakers

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300W 6.5" QR Series Coaxial Car Speakers

• 300W Max / 120W RMS
• 0.5" PEI Semi-Dome Tweeter
• Mounting Depth: 2.56"
• Polypropylene Cone & Rubber Surround

• 300W Max / 120W RMS
• 0.5" PEI Semi-Dome Tweeter
• Mounting Depth: 2.56"
• Polypropylene Cone & Rubber Surround

Cadence QR422

200W 4" 2-Way QR-Series Coaxial Car Speakers

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200W 4" 2-Way QR-Series Coaxial Car Speakers

• 200W Max / 80W RMS
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 1.89"
• Polypropylene Cone and Rubber Surround

• 200W Max / 80W RMS
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 1.89"
• Polypropylene Cone and Rubber Surround

Cadence CV12D4 (CV 12D4)

500W Max (250W RMS) 12" CV Series Dual 4 ohm Car Subwoofer

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500W Max (250W RMS) 12" CV Series Dual 4 ohm Car Subwoofer

• 500 Watts Max
• 250 Watts RMS
• Mica Filled Polypropylene Cone
• Rubber Surround
• Stamped Steel Basket

• 500 Watts Max
• 250 Watts RMS
• Mica Filled Polypropylene Cone
• Rubber Surround
• Stamped Steel Basket

CV12D4 small

Item added to your cart.

Price: $43.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Single 12" Sealed Subwoofer Enclosure

Durable 3/4" Medium Density Fiberboard (MDF) Construction

$109.99

$69.99

Add to cart
NVX 20 ft. of True Spec 8 Gauge Speaker Wire

Flexible multi-strand cable bends and twists to meet your installation needs.

$64.99

$49.99

Add to cart
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

$6.99

Add to cart
NVX SDTK20

20 Square Feet of Sound Damping Material

$89.99

$59.99

Add to cart
Dynamat Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

$236.95

$149.95

Add to cart
NVX SDRLR1 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

$9.99

$7.99

Add to cart
NVX SDRLR2 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

$11.24

$8.99

Add to cart
Belva BAMMD1

Six Function Digital Multimeter

$14.99

$6.99

Add to cart
Belva BAMMD3

Nine Function Digital Multimeter

$29.99

$9.99

Add to cart

Cadence CEQ777

4 Band Parametric Equalizer with 7 Volt Line Driver

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4 Band Parametric Equalizer with 7 Volt Line Driver

• 4-Band Parametric
• 3 Sets of 7V Preamp Outputs
• Frequency Response:40Hz - 250Hz
• Signal-to-Noise Ratio: > 95dB

• 4-Band Parametric
• 3 Sets of 7V Preamp Outputs
• Frequency Response:40Hz - 250Hz
• Signal-to-Noise Ratio: > 95dB

CEQ777 small

Item added to your cart.

Price: $56.06

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX XIV205 V-Series RCA Audio Interconnect Cable

V-Series: 0.5m (1.64 ft) 2-Channel RCA Audio Interconnect Cable

$10.99

$7.99

Add to cart
NVX XIX205 X-Series RCA Audio Interconnect Cable

X-Series: 0.5m (1.64 ft) 2-Channel RCA Audio Interconnect Cable

$19.99

$13.99

Add to cart
NVX XWS1625 25 ft. of 16 Gauge Speaker Cable/Wire

25 ft. of True Spec 16 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$29.99

$19.99

Add to cart

Cadence XT20 (Sold Individually)

150W 2" XT Series 8-Ohm Titanium Compression Horn Tweeter

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150W 2" XT Series 8-Ohm Titanium Compression Horn Tweeter

• Peak Power: 150W
• RMS Power: 75W
• 2" XT Series 8-Ohm Titanium Compression Horn Tweeter
• Mounting Depth: 2.40"
Ferro-Fluid Voice Coil Cooling & Rubber Surround

• Peak Power: 150W
• RMS Power: 75W
• 2" XT Series 8-Ohm Titanium Compression Horn Tweeter
• Mounting Depth: 2.40"
Ferro-Fluid Voice Coil Cooling & Rubber Surround

Cadence QR65K

6.5" 2-Way 360 Watt QR Series Component Speaker Set

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6.5" 2-Way 360 Watt QR Series Component Speaker Set

• 360W Max / 140W RMS
• 1" Silk Dome Tweeter
• Mounting Depth: 2.56"
• Polypropylene Cone and Rubber Surround

• 360W Max / 140W RMS
• 1" Silk Dome Tweeter
• Mounting Depth: 2.56"
• Polypropylene Cone and Rubber Surround

Cadence QRS6K2

400W Peak (170W RMS) 6.5" 2-Way QRS Series Component Car Speakers

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400W Peak (170W RMS) 6.5" 2-Way QRS Series Component Car Speakers

• 400W Max / 170W RMS
• 1" Silk Dome Tweeter
• Mounting Depth: 2.56"
• Kevlar Fiber Cone and Rubber Surround

• 400W Max / 170W RMS
• 1" Silk Dome Tweeter
• Mounting Depth: 2.56"
• Kevlar Fiber Cone and Rubber Surround

Cadence BTM-1

Universal Wireless Bluetooth Module Adapter

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Universal Wireless Bluetooth Module Adapter

• Easy mounting to flat surfaces with the Easy router Template Guide
• Volume control / track up or down / play pause
• Bluetooth prioritization over all other inputs
• 3.5 mm Aux input on front panel
• Night illumination Buttons
• RCA inputs on rear
• Bluetooth 4.0
• Dimensions: 3.82" L x 2.13" W x 1.4" H

• Easy mounting to flat surfaces with the Easy router Template Guide
• Volume control / track up or down / play pause
• Bluetooth prioritization over all other inputs
• 3.5 mm Aux input on front panel
• Night illumination Buttons
• RCA inputs on rear
• Bluetooth 4.0
• Dimensions: 3.82" L x 2.13" W x 1.4" H

BTM-1 small

Item added to your cart.

Price: $43.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Cadence Q693

300W Peak (120W RMS) 6x9" 3-Way Q Series Coaxial Car Speakers

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300W Peak (120W RMS) 6x9" 3-Way Q Series Coaxial Car Speakers

• Peak Power: 300W
• RMS Power: 120W
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 3.25"
• Polypropylene Cone and Rubber Surround

• Peak Power: 300W
• RMS Power: 120W
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 3.25"
• Polypropylene Cone and Rubber Surround

Cadence XM84HCi (Sold Individually)

250W 8" Xenith Series 4-Ohm Midrange Car Speaker

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250W 8" Xenith Series 4-Ohm Midrange Car Speaker

• 250W Max / 125W RMS
• Impedance: 4-Ohm
• Carbon Treated Pulp Cone
• Treated Flat Foam Surround

• 250W Max / 125W RMS
• Impedance: 4-Ohm
• Carbon Treated Pulp Cone
• Treated Flat Foam Surround

Cadence XS552

250W 5.25" 2-Way Xenith Series Coaxial Car Speakers

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250W 5.25" 2-Way Xenith Series Coaxial Car Speakers

• Peak Power: 250W
• RMS Power: 80W
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 1.73"
• Polypropylene Cone and Rubber Surround

• Peak Power: 250W
• RMS Power: 80W
• 1/2" PEI Semi-Dome Tweeter
• Mounting Depth: 1.73"
• Polypropylene Cone and Rubber Surround

Cadence XT45 (CVLT45)

150W Max (75W RMS) 1" 4-Ohm Aluminum Bullet Super Tweeters

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150W Max (75W RMS) 1" 4-Ohm Aluminum Bullet Super Tweeters

• 75 Watts Max Each, 37.5 Watts RMS Each
• 1" Aluminum Bullet Tweeter
• High Temperature Kapton voice coil
• 4 Ohms Impedance
• Sensitivity: 102 dB
• Mounting Depth: 1.5"

• 75 Watts Max Each, 37.5 Watts RMS Each
• 1" Aluminum Bullet Tweeter
• High Temperature Kapton voice coil
• 4 Ohms Impedance
• Sensitivity: 102 dB
• Mounting Depth: 1.5"

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