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  3. Discontinued Polk Audio Car Audio & Electronics
  4. Discontinued Polk Audio Car Amplifiers
  5. Discontinued Polk Audio 2-Channel Amplifiers

Discontinued Polk Audio 2-Channel Amplifiers

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Product Type
Price Range
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 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.
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.

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Polk Audio Classic DB Speaker Combo

Polk Audio db651 6-1/2" 2-way Coaxial Speakers + Kenwood KAC-5206 2-Channel Amplifier + NVX SDSK2 Sound Dampening Kit + Belva BPK8 8 Gauge Amp Kit

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Polk Audio Classic DB Speaker Combo

Polk Audio db651 6-1/2" 2-way Coaxial Speakers + Kenwood KAC-5206 2-Channel Amplifier + NVX SDSK2 Sound Dampening Kit + Belva BPK8 8 Gauge Amp Kit

• 6-1/2" 2-way Coaxial Speakers (Marine Certified)
• 400W Max 2-Channel/Bridgeable Class AB Performance Series Car Amplifier
• Two 10" x 10" Pieces of Sound Dampening Material
• Complete 8 Gauge Amplifier Wiring Installation Kit with Speaker Cable

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• 6-1/2" 2-way Coaxial Speakers (Marine Certified)
• 400W Max 2-Channel/Bridgeable Class AB Performance Series Car Amplifier
• Two 10" x 10" Pieces of Sound Dampening Material
• Complete 8 Gauge Amplifier Wiring Installation Kit with Speaker Cable

Polk Audio PA D2000.2 (PAD2000.2)

500W RMS PA D Series Class-D 2-channel Car Amplifier

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Polk Audio PA D2000.2 (PAD2000.2)

500W RMS PA D Series Class-D 2-channel Car Amplifier

• 125 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF
• Dimensions: 6-3/4" W x 8-1/4" L x 1-13/16" H

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• 125 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF
• Dimensions: 6-3/4" W x 8-1/4" L x 1-13/16" H

Polk Audio PA330.2

300W 2-Channel PA Series Class AB Amplifier

PA330.2 big DISCONTINUED
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Polk Audio PA330.2

300W 2-Channel PA Series Class AB Amplifier

• RMS Power: 75W x 2 @ 4 ohm, 100W x 2 @ 2 ohm
• Total Peak Power: 300W
• Built-In Low and High Pass Filters
• Dimensions: 7-3/4" W x 8-1/8" L x 1-15/16" H

• RMS Power: 75W x 2 @ 4 ohm, 100W x 2 @ 2 ohm
• Total Peak Power: 300W
• Built-In Low and High Pass Filters
• Dimensions: 7-3/4" W x 8-1/8" L x 1-15/16" H

EXCLUSIVE

500W RMS Polk Audio and Kicker 8" Bass Package

8" Dual 2 ohm Solo-Baric L7 900W Car Subwoofer + 500W RMS PA D Series Class-D 2-Channel Amplifier

PA D2000.2_11S8L72 big DISCONTINUED
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500W RMS Polk Audio and Kicker 8" Bass Package

8" Dual 2 ohm Solo-Baric L7 900W Car Subwoofer + 500W RMS PA D Series Class-D 2-Channel Amplifier

• 900W Peak
• 450W RMS
• Titanium deposit Impregnated Cone Woofer with Rolled Outer Edge
• Santoprene Rubber Surround
• Highly-Efficient UniPlate™ Pole-Piece and Back Plate
• 125 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF

11

• 900W Peak
• 450W RMS
• Titanium deposit Impregnated Cone Woofer with Rolled Outer Edge
• Santoprene Rubber Surround
• Highly-Efficient UniPlate™ Pole-Piece and Back Plate
• 125 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF

Polk Audio PA D2000.2 (PAD2000.2) - Open Box, Acceptable but Missing part(s) (Used)

500W RMS PA D Series Class-D 2-channel Car Amplifier

PA D2000.2 big DISCONTINUED
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Polk Audio PA D2000.2 (PAD2000.2) - Open Box, Acceptable but Missing part(s) (Used)

500W RMS PA D Series Class-D 2-channel Car Amplifier

• 125 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF
• Dimensions: 6-3/4" W x 8-1/4" L x 1-13/16" H

• 125 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF
• Dimensions: 6-3/4" W x 8-1/4" L x 1-13/16" H

Polk Audio PA250.2

400W Max, 2-Channel Amplifier

PA250.2 big DISCONTINUED
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Polk Audio PA250.2

400W Max, 2-Channel Amplifier

PA Series 2-Channel Class AB Car Amplifier • 75W x 2 chan. @ 4 ohm • 125W x 2 chan. @ 2 ohm • 250W x 1 chan. @ 4 ohm • 200W x 2 chan. Max • PWM (Pulse Width Modulated) MOSFET power supply • Preamp RCA outputs

PA Series 2-Channel Class AB Car Amplifier • 75W x 2 chan. @ 4 ohm • 125W x 2 chan. @ 2 ohm • 250W x 1 chan. @ 4 ohm • 200W x 2 chan. Max • PWM (Pulse Width Modulated) MOSFET power supply • Preamp RCA outputs

Polk Audio PA D2000.2 (PAD2000.2) - Open Box, Good Condition (Used)

500W RMS PA D Series Class-D 2-channel Car Amplifier Open Box Complete (Good, Used)

PA D2000.2 big DISCONTINUED
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Polk Audio PA D2000.2 (PAD2000.2) - Open Box, Good Condition (Used)

500W RMS PA D Series Class-D 2-channel Car Amplifier Open Box Complete (Good, Used)

• 125 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF
• Dimensions: 6-3/4" W x 8-1/4" L x 1-13/16" H

• 125 Watts RMS x 2 @ 4 ohm
• 250 Watts RMS x 2 @ 2 ohm
• 500 Watts RMS x 1 @ 4 ohm, Bridged
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF
• Dimensions: 6-3/4" W x 8-1/4" L x 1-13/16" H

Polk Audio Momo C300.2

850W max. 2-Channel Amplifier

C300.2 big DISCONTINUED
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Polk Audio Momo C300.2

850W max. 2-Channel Amplifier

2-Channel Amplifier • 150 watts x 2 @ 4 ohm • 250 watts x 2 @ 2 ohm • 550 watts x 1 @ 4 ohm • Full Electric Crossover • 6-way Smart System Protection • Frequency Response: 15 Hz - 45 kHz

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2-Channel Amplifier • 150 watts x 2 @ 4 ohm • 250 watts x 2 @ 2 ohm • 550 watts x 1 @ 4 ohm • Full Electric Crossover • 6-way Smart System Protection • Frequency Response: 15 Hz - 45 kHz

Polk Audio PA330.2 Open Box Complete

300W 2-Channel PA Series Class AB Amplifier

PA330.2 big DISCONTINUED
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Polk Audio PA330.2 Open Box Complete

300W 2-Channel PA Series Class AB Amplifier

• Open Box Complete
• RMS Power: 75W x 2 @ 4 ohm, 100W x 2 @ 2 ohm
• Total Peak Power: 300W
• Built-In Low and High Pass Filters
• Dimensions: 7-3/4" W x 8-1/8" L x 1-15/16" H

• Open Box Complete
• RMS Power: 75W x 2 @ 4 ohm, 100W x 2 @ 2 ohm
• Total Peak Power: 300W
• Built-In Low and High Pass Filters
• Dimensions: 7-3/4" W x 8-1/8" L x 1-15/16" H

Polk Audio PA D2000.2 (PAD2000.2) Open Box

500W RMS, 2-Channel Class D PA Series Car Amplifier

PA D2000.2 big DISCONTINUED
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Polk Audio PA D2000.2 (PAD2000.2) Open Box

500W RMS, 2-Channel Class D PA Series Car Amplifier

PA Series 2-Channel Class D Car Amplifier • 125W x 2-Chan. @ 4 ohm • 250W x 2-Chan. @ 2 ohm • 500W x 1-Chan. Bridged • Level Control • Line Level Output • High-Pass Filter • Adjustable High-Pass & Low-Pass Frequencies

PA Series 2-Channel Class D Car Amplifier • 125W x 2-Chan. @ 4 ohm • 250W x 2-Chan. @ 2 ohm • 500W x 1-Chan. Bridged • Level Control • Line Level Output • High-Pass Filter • Adjustable High-Pass & Low-Pass Frequencies

EXCLUSIVE

500 Watt RMS Polk Audio and JL Audio 10" Bass Package

500W RMS PA D Series Class-D 2-channel Car Amplifier + 500W RMS 10" W3v3 Series Single 4-Ohm Subwoofer

PA D2000.2_10W3v3-4 big DISCONTINUED
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500 Watt RMS Polk Audio and JL Audio 10" Bass Package

500W RMS PA D Series Class-D 2-channel Car Amplifier + 500W RMS 10" W3v3 Series Single 4-Ohm Subwoofer

• Injection-molded, mineral-filled polypropylene cone
• Nitrile butadiene rubber surround
•Customization trim ring
• Floating Cone Attach Method
• DMA Optimized Motor
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF

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• Injection-molded, mineral-filled polypropylene cone
• Nitrile butadiene rubber surround
•Customization trim ring
• Floating Cone Attach Method
• DMA Optimized Motor
• Mono or 2-Channel Operation
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Selectable crossover modes: FULL / HPF / LPF

 
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