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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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Beyma RF-20

RF-One Series 1" Tweeters (25mm) (RF20)

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RF-One Series 1" Tweeters (25mm) (RF20)

1" RF Series Tweeters • 40W Max • 20W RMS • Mylar diaphragm • Tweeter mounting depth: .75" (19mm) • Tweeter cutout diameter: 1.81" (46mm)

1" RF Series Tweeters • 40W Max • 20W RMS • Mylar diaphragm • Tweeter mounting depth: .75" (19mm) • Tweeter cutout diameter: 1.81" (46mm)

Beyma ASF3V

3-way Crossovers for High Fidelity Systems

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3-way Crossovers for High Fidelity Systems

3-way Crossovers • 400 watts MAX • Frequency Range: 800 - 5000 Hz • 6 dB per Octave • 4 ohm Impedance

3-way Crossovers • 400 watts MAX • Frequency Range: 800 - 5000 Hz • 6 dB per Octave • 4 ohm Impedance

Beyma Power 10

Competition Series 10" Single 4 ohm Subwoofer ( POWER10 )

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Competition Series 10" Single 4 ohm Subwoofer ( POWER10 )

10" Single 4 Ohm Competition Series Subwoofer • 900 watts MAX • 300W RMS • Frequency Response: 45 - 2kHz • Sensitivity: 93 dB

10" Single 4 Ohm Competition Series Subwoofer • 900 watts MAX • 300W RMS • Frequency Response: 45 - 2kHz • Sensitivity: 93 dB

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Item added to your cart.

Price: $99.99

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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

Beyma PRO 8MI

Competition Series 8" Midwoofer

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Competition Series 8" Midwoofer

8" Midwoofer • 500 watts max • Frequency Response: 150 - 7,000 Hz • Sensitivity: 98 dB • 4 ohm Impedance

8" Midwoofer • 500 watts max • Frequency Response: 150 - 7,000 Hz • Sensitivity: 98 dB • 4 ohm Impedance

Beyma POWER 12

12" Single 4 ohm Competition Series Subwoofer POWER12

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12" Single 4 ohm Competition Series Subwoofer POWER12

12" Single 4 Ohm Competition Series Subwoofer • 1500W Max • 500W RMS • Sensitivity: 95 dB • 4" Voice Coil

12" Single 4 Ohm Competition Series Subwoofer • 1500W Max • 500W RMS • Sensitivity: 95 dB • 4" Voice Coil

POWER-12 small

Item added to your cart.

Price: $159.99

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
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
NVX SDBP40

40 Square Feet of Sound Dampening Material

$279.99

$89.99

Add to cart
Stinger RKX36B

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for the whole car!

$219.00

$140.99

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
Dynamat Bulk Pack

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

$383.95

$235.99

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

Beyma Power W6

Competition Series 6-1/2" Subwoofer Driver

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Competition Series 6-1/2" Subwoofer Driver

6 1/2" Subwoofer Driver • 200 watts MAX • Frequency Response: 45 - 4kHz • Sensitivity: 89 dB • 4 ohm Impedance

6 1/2" Subwoofer Driver • 200 watts MAX • Frequency Response: 45 - 4kHz • Sensitivity: 89 dB • 4 ohm Impedance

Power-W6 small

Item added to your cart.

Price: $89.99

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

Beyma ASF2V

2-way Crossovers

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2-way Crossovers

2-way Crossovers • 400 watts MAX • Frequency Range: 5000 Hz • 12 dB per Octave • 4 ohm Impedance

2-way Crossovers • 400 watts MAX • Frequency Range: 5000 Hz • 12 dB per Octave • 4 ohm Impedance

Beyma RFK-52

5-1/4" RF-ONE Series 2-way Component System ( RFK52 )

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5-1/4" RF-ONE Series 2-way Component System ( RFK52 )

5.25" 2-Way Component System • 1" Tweeters • 100 watts MAX • Crossover Network: 12 dB per Octave • Frequency Response: 60 - 26kHz • Sensitivity: 90 dB • 4 ohm Impedance

5.25" 2-Way Component System • 1" Tweeters • 100 watts MAX • Crossover Network: 12 dB per Octave • Frequency Response: 60 - 26kHz • Sensitivity: 90 dB • 4 ohm Impedance

Beyma AST-05

Competition Series 1.5" Bullet Tweeters ( AST05 )

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Competition Series 1.5" Bullet Tweeters ( AST05 )

1.5" Bullet Tweeters • 100 watts MAX • Frequency Response: 3 - 20kHz • Sensitivity: 105dB • 4 ohm Impedance

1.5" Bullet Tweeters • 100 watts MAX • Frequency Response: 3 - 20kHz • Sensitivity: 105dB • 4 ohm Impedance

Beyma PRO 65ND

Competition Series 6-1/2" Midwoofers

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Competition Series 6-1/2" Midwoofers

6-1/2" Midwoofer • 250 watts MAX • Frequency Response: 150 - 8,000 Hz • Sensitivity: 100 dB • 4 ohm Impedance

6-1/2" Midwoofer • 250 watts MAX • Frequency Response: 150 - 8,000 Hz • Sensitivity: 100 dB • 4 ohm Impedance

Beyma 6G40ND

(Individually Priced) 6" Low-mid range Speaker

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(Individually Priced) 6" Low-mid range Speaker

Beyma 6-1/2" Midwoofer • 340W Max • 170W RMS • Paper Cone Woofer • Extended Frequency Response & Low Distortion • 2" Aluminum Voice Coil • Neodymium Magnet

Beyma 6-1/2" Midwoofer • 340W Max • 170W RMS • Paper Cone Woofer • Extended Frequency Response & Low Distortion • 2" Aluminum Voice Coil • Neodymium Magnet

Beyma SC-6903 ( SC-693 )

6" x 9" 3-way Speakers ( SC6903, SC693 )

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6" x 9" 3-way Speakers ( SC6903, SC693 )

6" x 9" 3-Way Speaker • 200 watts MAX • Frequency Range: 40 Hz- 30 kHz • Sensitivity: 91 dB • 4 ohm Impedance • Glass Fiber Cones

6" x 9" 3-Way Speaker • 200 watts MAX • Frequency Range: 40 Hz- 30 kHz • Sensitivity: 91 dB • 4 ohm Impedance • Glass Fiber Cones

Beyma PH-35

Competition Series 4" Bullet Tweeters ( PH35 )

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Competition Series 4" Bullet Tweeters ( PH35 )

4" Bullet Tweeters • 100 watts Peak • Frequency Response: 3.5 - 20kHz • Sensitivity: 104 dB • 4 ohm Impedance

4" Bullet Tweeters • 100 watts Peak • Frequency Response: 3.5 - 20kHz • Sensitivity: 104 dB • 4 ohm Impedance

Beyma SCK-65

Sound Concept Series 6-1/2" 2-way Component System ( SCK65 )

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Sound Concept Series 6-1/2" 2-way Component System ( SCK65 )

6 1/2" 2 Way Component System • 160 watts MAX • Frequency Response: 50 - 20kHz • Sensitivity: 92 dB • 4 ohm Impedance • Glass-Fiber Cones

6 1/2" 2 Way Component System • 160 watts MAX • Frequency Response: 50 - 20kHz • Sensitivity: 92 dB • 4 ohm Impedance • Glass-Fiber Cones

Beyma RF-10

RF-One Series 1" Tweeters ( RF10 )

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RF-One Series 1" Tweeters ( RF10 )

1" Tweeter • 50 watts MAX • Frequency Response: 2 - 25kHz • Sensitivity: 90 dB • Mylar Dome Construction

1" Tweeter • 50 watts MAX • Frequency Response: 2 - 25kHz • Sensitivity: 90 dB • Mylar Dome Construction

RF-10 small

Item added to your cart.

Price: $44.99

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

Beyma SC 603

6-1/2" Sound Concept Series 3-way Car Speakers

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6-1/2" Sound Concept Series 3-way Car Speakers

6-1/2" Sound Concept Series 3-Way Car Speakers • 150W Max • 75W RMS • Glass fiber cone woofer • Rubber surround • 4 ohm Impedance

6-1/2" Sound Concept Series 3-Way Car Speakers • 150W Max • 75W RMS • Glass fiber cone woofer • Rubber surround • 4 ohm Impedance

Beyma HT-45

Sound Concept Series 1" Tweeters ( HT45 )

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Sound Concept Series 1" Tweeters ( HT45 )

1" Tweeter • 60 watts MAX • Frequency Response: 1 - 22kHz • Sensitivity: 91 dB • 4 ohm Impedance • Glass Fiber Material

1" Tweeter • 60 watts MAX • Frequency Response: 1 - 22kHz • Sensitivity: 91 dB • 4 ohm Impedance • Glass Fiber Material

Beyma AST-09

** SPECIAL ** Competition Series 3.5" Bullet Tweeters ( AST09 )

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** SPECIAL ** Competition Series 3.5" Bullet Tweeters ( AST09 )

3.5" Bullet Tweeters • 150 watts MAX • Frequency Response: 2.5 - 22kHz • Sensitivity: 107 dB • 4 ohm Impedance

3.5" Bullet Tweeters • 150 watts MAX • Frequency Response: 2.5 - 22kHz • Sensitivity: 107 dB • 4 ohm Impedance

Beyma SCW-12

12" Single 4 ohms Sound Concept Series Subwoofer ( SCW12 )

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12" Single 4 ohms Sound Concept Series Subwoofer ( SCW12 )

12" Single 4 Ohms Sound Concept Series Subwoofer • 500 watts MAX • Frequency Response: 25 - 1500 Hz • Sensitivity: 92 dB • Glass Fiber Cones • 4 ohm Impedance

12" Single 4 Ohms Sound Concept Series Subwoofer • 500 watts MAX • Frequency Response: 25 - 1500 Hz • Sensitivity: 92 dB • Glass Fiber Cones • 4 ohm Impedance

SCW-12 small

Item added to your cart.

Price: $99.99

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

Beyma PRO 10MI

Competition Series 10" Midwoofer (Individually Priced)

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Competition Series 10" Midwoofer (Individually Priced)

10" Competition Series Midwoofer • 700W Max • 350W RMS • 4 ohms impedance • 3" Voice Voil • Individually Priced

10" Competition Series Midwoofer • 700W Max • 350W RMS • 4 ohms impedance • 3" Voice Voil • Individually Priced

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