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  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Amplifiers
  4. Discontinued Monoblock Amplifiers

Discontinued Monoblock Amplifiers

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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 Key Features
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.
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.
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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.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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You are currently viewing discontinued products.

Sundown Audio SAEv.4-2000.1D (Open Box, Great)

2000W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

SAEv.4-2000.1D big DISCONTINUED
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Sundown Audio SAEv.4-2000.1D (Open Box, Great)

2000W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

• 875 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 875 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SFB-1000D (Open Box, Great)

1000W RMS Class D SFB Series Monoblock Car Amplifier

A-SFBV21000 big DISCONTINUED
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Sundown Audio SFB-1000D (Open Box, Great)

1000W RMS Class D SFB Series Monoblock Car Amplifier

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

1

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

Lowest price in 30 days

Rockford Fosgate Punch P500X1BD (Open Box, Like New)

500W RMS Class BD Punch Series Monoblock Car Amplifier

P500X1BD big DISCONTINUED
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Rockford Fosgate Punch P500X1BD (Open Box, Like New)

500W RMS Class BD Punch Series Monoblock Car Amplifier

• 150 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• Total RMS Power: 500 watts
• Class BD 1 ohm Stable Monoblock Amplifier

14

• 150 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• Total RMS Power: 500 watts
• Class BD 1 ohm Stable Monoblock Amplifier

Rockford Fosgate Prime R2-750X1 - New (Damaged Packaging, Product A+)

750W RMS Class D Prime Series Monoblock Car Amplifier

R2-750X1 big DISCONTINUED
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Rockford Fosgate Prime R2-750X1 - New (Damaged Packaging, Product A+)

750W RMS Class D Prime Series Monoblock Car Amplifier

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 750 watts x 1 channel @ 1 ohm
• Total RMS Power: 750 watts
• Class D 1 ohm Stable Monoblock Amplifier

6

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 750 watts x 1 channel @ 1 ohm
• Total RMS Power: 750 watts
• Class D 1 ohm Stable Monoblock Amplifier

JL Audio JD500/1 (Open Box, Like New)

500W RMS Class D JD Series Monoblock Car Amplifier

JD500/1 big DISCONTINUED
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JL Audio JD500/1 (Open Box, Like New)

500W RMS Class D JD Series Monoblock Car Amplifier

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

12

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

Sundown Audio SAM-600D (Open Box, Great)

600W RMS Class D Monoblock Powersport Amplifier

SAM-600D big DISCONTINUED
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Sundown Audio SAM-600D (Open Box, Great)

600W RMS Class D Monoblock Powersport Amplifier

• 230 watts x 1 channel @ 4 ohm
• 415 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 230 watts x 1 channel @ 4 ohm
• 415 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

Rockford Fosgate Power T1500-1BDCP (Open Box, Like New)

1500W RMS Class BD Power Series Monoblock Car Amplifier

T1500-1bdCP big DISCONTINUED
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Rockford Fosgate Power T1500-1BDCP (Open Box, Like New)

1500W RMS Class BD Power Series Monoblock Car Amplifier

• 1000 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Class BD 1 ohm Stable Monoblock Amplifier

74

• 1000 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Class BD 1 ohm Stable Monoblock Amplifier

Sundown Audio SALT-1.5 (Open Box, Like New)

1500W RMS Class D SALT Series Monoblock Car Amplifier

SALT-1.5 big DISCONTINUED
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Sundown Audio SALT-1.5 (Open Box, Like New)

1500W RMS Class D SALT Series Monoblock Car Amplifier

• 400 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• 3000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 400 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• 3000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

Hertz DPower 1 (Open-box, Like New)

600W Peak (300W RMS) Class D DPOWER Series Monoblock Car Amplifier

DPower 1 big DISCONTINUED
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Hertz DPower 1 (Open-box, Like New)

600W Peak (300W RMS) Class D DPOWER Series Monoblock Car Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

JL Audio Slash 600/1v3 Damaged Packaging Only (New)

600W RMS Monoblock Slash v3 Series Class D Car Amplifier

600/1v3 big DISCONTINUED
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JL Audio Slash 600/1v3 Damaged Packaging Only (New)

600W RMS Monoblock Slash v3 Series Class D Car Amplifier

• Peak: 600W x 1 @ 4 ohm, 600W x 1 @ 3 ohm, 600W x 1 @ 2, 600W x 1 @ 1.5 ohm
• Total RMS Power: 600W
• R.I.P.S. Power Supply
• Parametric Bass EQ
• Fully Variable Infrasonic Filter
• Dimensions: 13.40"L x 9.25"W x 2.36"H

8

• Peak: 600W x 1 @ 4 ohm, 600W x 1 @ 3 ohm, 600W x 1 @ 2, 600W x 1 @ 1.5 ohm
• Total RMS Power: 600W
• R.I.P.S. Power Supply
• Parametric Bass EQ
• Fully Variable Infrasonic Filter
• Dimensions: 13.40"L x 9.25"W x 2.36"H

Sundown Audio SALT-2 (Open Box, Great)

2000W RMS Class D SALT Series Monoblock Car Amplifier

SALT-2 big DISCONTINUED
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Sundown Audio SALT-2 (Open Box, Great)

2000W RMS Class D SALT Series Monoblock Car Amplifier

• 500 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• 4000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 500 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• 4000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Hertz DPower 1 (Open Box, Great)

600W Peak (300W RMS) Class D DPOWER Series Monoblock Car Amplifier

DPower 1 big DISCONTINUED
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Hertz DPower 1 (Open Box, Great)

600W Peak (300W RMS) Class D DPOWER Series Monoblock Car Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

Sundown Audio SIA-5000D (Open Box, Like New)

5000W RMS Class D SFB Series Monoblock Car Amplifier

SIA-5000D big DISCONTINUED
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Sundown Audio SIA-5000D (Open Box, Like New)

5000W RMS Class D SFB Series Monoblock Car Amplifier

• 3400 watts x 1 channel @ 4 ohm
• 4950 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 1 ohm Stable Monoblock Amplifier

3

• 3400 watts x 1 channel @ 4 ohm
• 4950 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SALT-2 (Open Box, Like New)

2000W RMS Class D SALT Series Monoblock Car Amplifier

SALT-2 big DISCONTINUED
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Sundown Audio SALT-2 (Open Box, Like New)

2000W RMS Class D SALT Series Monoblock Car Amplifier

• 500 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• 4000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 500 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• 4000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Rockford Fosgate Prime R2-250X1 - New (Damaged Packaging, Product A+)

250W RMS Class D Prime Series Monoblock Car Amplifier with Bass Remote

R2-250X1 big DISCONTINUED
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Rockford Fosgate Prime R2-250X1 - New (Damaged Packaging, Product A+)

250W RMS Class D Prime Series Monoblock Car Amplifier with Bass Remote

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• CEA-2006 Compliant
• Class D 2 ohm Stable Monoblock Amplifier

3

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• CEA-2006 Compliant
• Class D 2 ohm Stable Monoblock Amplifier

JL Audio VX1000/1i (Open Box, Like New)

1000W RMS Class D VXi Series Monoblock Car Amplifier

VX1000/1i big DISCONTINUED
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JL Audio VX1000/1i (Open Box, Like New)

1000W RMS Class D VXi Series Monoblock Car Amplifier

• 600 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 3 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

1

• 600 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 3 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

JL Audio JD250/1 (Open Box, Like New)

250W RMS Class D JD Series Monoblock Car Amplifier

JD250/1 big DISCONTINUED
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JL Audio JD250/1 (Open Box, Like New)

250W RMS Class D JD Series Monoblock Car Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

4

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

Sundown Audio SIA-3500D V2 (Open Box, Like New)

3500W RMS Class D SFB Series Monoblock Car Amplifier

A-SIAV23500 big DISCONTINUED
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Sundown Audio SIA-3500D V2 (Open Box, Like New)

3500W RMS Class D SFB Series Monoblock Car Amplifier

• 2600 watts x 1 channel @ 4 ohm
• 3300 watts x 1 channel @ 2 ohm
• 3500 watts x 1 channel @ 1 ohm
• Total RMS Power: 3500 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 2600 watts x 1 channel @ 4 ohm
• 3300 watts x 1 channel @ 2 ohm
• 3500 watts x 1 channel @ 1 ohm
• Total RMS Power: 3500 watts
• Class D 1 ohm Stable Monoblock Amplifier

JL Audio JD250/1 - New (Damaged Packaging, Product A+)

250W RMS Class D JD Series Monoblock Car Amplifier

JD250/1 big DISCONTINUED
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JL Audio JD250/1 - New (Damaged Packaging, Product A+)

250W RMS Class D JD Series Monoblock Car Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

4

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

JBL Club A600 - New (Damaged Packaging, Product A+)

1200W Peak (600W RMS) Class D Club Series Compact Monoblock Amplifier with Bass Remote

Club A600 big DISCONTINUED
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JBL Club A600 - New (Damaged Packaging, Product A+)

1200W Peak (600W RMS) Class D Club Series Compact Monoblock Amplifier with Bass Remote

• 350 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 350 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable Monoblock Amplifier

JL Audio VX600/1i (Open Box, Like New)

600W RMS Class D VXi Series Monoblock Car Amplifier

VX600/1i big DISCONTINUED
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JL Audio VX600/1i (Open Box, Like New)

600W RMS Class D VXi Series Monoblock Car Amplifier

• 400 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 3 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable Monoblock Amplifier

1

• 400 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 3 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable Monoblock Amplifier

Sundown Audio SAEv4-1000.1D (Open Box, Like New)

1000W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

SAEv4-1000.1D big DISCONTINUED
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Sundown Audio SAEv4-1000.1D (Open Box, Like New)

1000W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

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

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

Sundown Audio SALT-3 (Open Box, Like New)

3000W RMS Class D SALT Series Monoblock Car Amplifier

SALT-3 big DISCONTINUED
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Sundown Audio SALT-3 (Open Box, Like New)

3000W RMS Class D SALT Series Monoblock Car Amplifier

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• 6000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• 6000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SIA-1750D (Open Box, Like New)

1750W RMS Class D SFB Series Monoblock Car Amplifier

SIA-1750D big DISCONTINUED
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Sundown Audio SIA-1750D (Open Box, Like New)

1750W RMS Class D SFB Series Monoblock Car Amplifier

• 1250 watts x 1 channel @ 4 ohm
• 1750 watts x 1 channel @ 2 ohm
• 1750 watts x 1 channel @ 1 ohm
• Total RMS Power: 1750 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 1250 watts x 1 channel @ 4 ohm
• 1750 watts x 1 channel @ 2 ohm
• 1750 watts x 1 channel @ 1 ohm
• Total RMS Power: 1750 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SIA-1250D (Open Box, Like New)

1250W RMS Class D SFB Series Monoblock Car Amplifier

A-SIA1250 big DISCONTINUED
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Sundown Audio SIA-1250D (Open Box, Like New)

1250W RMS Class D SFB Series Monoblock Car Amplifier

• 800 watts x 1 channel @ 4 ohm
• 1250 watts x 1 channel @ 2 ohm
• 1250 watts x 1 channel @ 1 ohm
• Total RMS Power: 1250 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 800 watts x 1 channel @ 4 ohm
• 1250 watts x 1 channel @ 2 ohm
• 1250 watts x 1 channel @ 1 ohm
• Total RMS Power: 1250 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SIA-8000D (Open Box, Great)

8000W RMS Class D SFB Series Monoblock Car Amplifier

SIA-8000D big DISCONTINUED
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Sundown Audio SIA-8000D (Open Box, Great)

8000W RMS Class D SFB Series Monoblock Car Amplifier

• 5600 watts x 1 channel @ 4 ohm
• 7700 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 5600 watts x 1 channel @ 4 ohm
• 7700 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Rockford Fosgate Punch P300X1 (Open Box, Like New)

300W RMS Class AB Punch Series Monoblock Car Amplifier

P300X1 big DISCONTINUED
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Rockford Fosgate Punch P300X1 (Open Box, Like New)

300W RMS Class AB Punch Series Monoblock Car Amplifier

• 200 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class A/B 2 ohm Stable Monoblock Amplifier

8

• 200 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class A/B 2 ohm Stable Monoblock Amplifier

JL Audio RD500/1 (Open Box, Like New)

500W RMS Class D RD Series Monoblock Car Amplifier

RD500/1 big DISCONTINUED
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JL Audio RD500/1 (Open Box, Like New)

500W RMS Class D RD Series Monoblock Car Amplifier

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

22

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

Rockford Fosgate R2-250X1 (Open Box, Like New)

250W RMS Class D Prime Series Monoblock Car Amplifier

R2-250X1 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate R2-250X1 (Open Box, Like New)

250W RMS Class D Prime Series Monoblock Car Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

3

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

Sundown Audio SAM-1000D (Open Box, Like New)

1000W RMS Class D Monoblock Powersport Amplifier

SAM-1000D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio SAM-1000D (Open Box, Like New)

1000W RMS Class D Monoblock Powersport Amplifier

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

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

Sundown Audio SIA-2500D (Open Box, Like New)

2500W RMS Class D SFB Series Monoblock Car Amplifier

SIA-2500D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio SIA-2500D (Open Box, Like New)

2500W RMS Class D SFB Series Monoblock Car Amplifier

• 2000 watts x 1 channel @ 4 ohm
• 2500 watts x 1 channel @ 2 ohm
• 2500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2500 watts
• Class D 1 ohm Stable Monoblock Amplifier

3

• 2000 watts x 1 channel @ 4 ohm
• 2500 watts x 1 channel @ 2 ohm
• 2500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2500 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown SAM-1500D (Open Box, Like New)

1500W RMS Class D Monoblock Powersport Amplifier

SAM-1500D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sundown SAM-1500D (Open Box, Like New)

1500W RMS Class D Monoblock Powersport Amplifier

• 700 watts x 1 channel @ 4 ohm
• 1130 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 700 watts x 1 channel @ 4 ohm
• 1130 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

Alpine Status HDA-M80 - New (Damaged Packaging, Product A+)

800W RMS Class D Status Series Monoblock Car Amplifier

HDA-M80 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Alpine Status HDA-M80 - New (Damaged Packaging, Product A+)

800W RMS Class D Status Series Monoblock Car Amplifier

• 500 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable Monoblock Amplifier

1

• 500 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable Monoblock Amplifier

Sundown Audio SAEv4-600.1D (Open Box, Great)

600W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

SAEv4-600.1D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio SAEv4-600.1D (Open Box, Great)

600W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

• 250 watts x 1 channel @ 4 ohm
• 450 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 250 watts x 1 channel @ 4 ohm
• 450 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SALT-8 Competition (Open Box, Like New)

8000W RMS Class D SALT Series Monoblock Car Amplifier

SALT-8 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio SALT-8 Competition (Open Box, Like New)

8000W RMS Class D SALT Series Monoblock Car Amplifier

• 2000 watts x 1 channel @ 4 ohm
• 4000 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• 16000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 2000 watts x 1 channel @ 4 ohm
• 4000 watts x 1 channel @ 2 ohm
• 8000 watts x 1 channel @ 1 ohm
• 16000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 8000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SAEv.4-2000.1D (Open Box, Like New)

2000W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

SAEv.4-2000.1D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio SAEv.4-2000.1D (Open Box, Like New)

2000W RMS Class D SAEv4 Series Monoblock Car Amplifier with Wired Remote Control

• 875 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 875 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SAM-600D (Open Box, Like New)

600W RMS Class D Monoblock Powersport Amplifier

SAM-600D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio SAM-600D (Open Box, Like New)

600W RMS Class D Monoblock Powersport Amplifier

• 230 watts x 1 channel @ 4 ohm
• 415 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 230 watts x 1 channel @ 4 ohm
• 415 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SFB-1000D (Open Box, Like New)

1000W RMS Class D SFB Series Monoblock Car Amplifier

A-SFBV21000 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio SFB-1000D (Open Box, Like New)

1000W RMS Class D SFB Series Monoblock Car Amplifier

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

1

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

Pioneer GM-DX871 - New (Damaged Packaging, Product A+)

1600W Peak (800W RMS) Class D GM Series Monoblock Car Amplifier with Remote Bass

GM-DX871 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Pioneer GM-DX871 - New (Damaged Packaging, Product A+)

1600W Peak (800W RMS) Class D GM Series Monoblock Car Amplifier with Remote Bass

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 800 watts x 1 channel @ 1 ohm
• Total RMS Power: 800 watts
• Class D 1 ohm Stable Monoblock Amplifier

7

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 800 watts x 1 channel @ 1 ohm
• Total RMS Power: 800 watts
• Class D 1 ohm Stable Monoblock Amplifier

Sundown Audio SALT-6 Competition (Open Box, Like New)

6000W RMS Class D SALT Series Monoblock Car Amplifier

SALT-6 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio SALT-6 Competition (Open Box, Like New)

6000W RMS Class D SALT Series Monoblock Car Amplifier

• 1500 watts x 1 channel @ 4 ohm
• 3000 watts x 1 channel @ 2 ohm
• 6000 watts x 1 channel @ 1 ohm
• 12000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 6000 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 1500 watts x 1 channel @ 4 ohm
• 3000 watts x 1 channel @ 2 ohm
• 6000 watts x 1 channel @ 1 ohm
• 12000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 6000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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    FAQ Frequently asked questions in Discontinued Monoblock Amplifiers

    A monoblock amplifier is a single-channel amplifier designed to power a single speaker or subwoofer. Unlike multi-channel amplifiers that can power multiple speakers simultaneously, a monoblock amplifier is dedicated to driving a specific speaker, typically a subwoofer. The advantage of a monoblock amplifier lies in its specialized design, which allows it to deliver higher power output to the subwoofer without interference from other speakers. This dedicated power delivery results in enhanced bass response and cleaner, more impactful low-frequency reproduction, making monoblock amplifiers a popular choice for car audio enthusiasts seeking powerful bass performance.
    Monoblock amplifiers are specifically designed to power subwoofers and are not intended for use with other speakers in your audio system. They usually have a single output channel optimized for low-frequency signals, making them unsuitable for driving mid-range or high-frequency speakers. For other speakers like door speakers or tweeters, you should use multi-channel amplifiers or dedicated channels on an audio processor. Using a monoblock amplifier for full-range speakers can result in poor audio performance and potential damage to the speakers.
    Monoblock amplifiers are compatible with most subwoofers, but it's crucial to consider the amplifier's power output and the subwoofer's power handling capabilities. The amplifier's power rating should match or slightly exceed the subwoofer's RMS power handling to ensure optimal performance and prevent overloading the subwoofer. Additionally, check the impedance (ohms) of both the amplifier and the subwoofer to ensure they match. Most monoblock amplifiers can handle both 2-ohm and 4-ohm loads, but some can also operate at 1-ohm, providing flexibility in subwoofer wiring configurations.
    No, monoblock amplifiers are not designed for bridging, as they are already single-channel amplifiers dedicated to powering a single subwoofer. Attempting to bridge a monoblock amplifier can cause damage to the amplifier and subwoofers. If you need to power multiple subwoofers, consider using multi-channel amplifiers or multiple monoblock amplifiers, each dedicated to driving a separate subwoofer. Sonic Electronix offers a wide selection of multi-channel amplifiers that can power multiple subwoofers simultaneously, ensuring optimal performance and protection for your audio system.
    Monoblock amplifiers can generate a significant amount of heat, especially when driving powerful subwoofers at high volume levels. While they don't require special cooling or ventilation compared to other amplifier types, it's essential to provide adequate airflow around the amplifier to dissipate heat effectively. Avoid mounting the amplifier in enclosed spaces or areas with limited ventilation, as this can lead to overheating and reduced performance. In some cases, installing a cooling fan or using amplifier cooling solutions can help maintain optimal operating temperatures. If you have concerns about amplifier heat, Sonic Electronix's knowledgeable staff can recommend suitable cooling solutions for your specific setup. Monoblock amplifiers are an excellent choice for enhancing the bass performance in your car audio system, providing dedicated power delivery to your subwoofers for impactful and detailed low-frequency sound reproduction. When used correctly and matched with the right subwoofers, monoblock amplifiers can elevate your car audio experience to new depths of bass excellence.
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