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Kicker KX2500.1

Factory R/B KX-Series 05KX2500.1

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Factory R/B KX-Series 05KX2500.1

Class D Mono Amplifier • 2500W RMS x 1 @ 2 • 1500W RMS x 1 @ 4 • Bass Level Remote • Variable Crossover • KickBass Boost • RCA Outputs • Gold Plated Connectors

Class D Mono Amplifier • 2500W RMS x 1 @ 2 • 1500W RMS x 1 @ 4 • Bass Level Remote • Variable Crossover • KickBass Boost • RCA Outputs • Gold Plated Connectors

Dual DA301L (Great for Powersports, UTV, ATV, Motorcycles) (Open Box, Great)

700W Peak (350W RMS) Ultra Compact Low Profile Series Series Class-D Digital Monoblock 2-Ohm Stable Amplifier (Made in Korea)

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700W Peak (350W RMS) Ultra Compact Low Profile Series Series Class-D Digital Monoblock 2-Ohm Stable Amplifier (Made in Korea)

• RMS: 100W x 4 @ 4 ohm, 150W x 4 @ 2 ohm
• Total Peak Power: 400W
• Pulse Width Modulated MOSFET Power Supply
• 4-Way Protection Circuitry
• Dimensions: 3"W x 5.9"L x 1.5"H

• RMS: 100W x 4 @ 4 ohm, 150W x 4 @ 2 ohm
• Total Peak Power: 400W
• Pulse Width Modulated MOSFET Power Supply
• 4-Way Protection Circuitry
• Dimensions: 3"W x 5.9"L x 1.5"H

NVX NDA11005 (Open Box, Great)

2200W Peak (1100W RMS) N-Series Class-D 5-Channel Amplifier with Remote Bass Knob

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2200W Peak (1100W RMS) N-Series Class-D 5-Channel Amplifier with Remote Bass Knob

• 100 watts x 4 channel + 315 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

• 100 watts x 4 channel + 315 watts x 1 channel @ 4 ohm
• 150 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

Kicker KXA1600.1 (44KXA16001) Open Box (Complete)

1600W RMS KXA Class-D Monoblock 1-Ohm Stable Amplifier with Remote Level Control

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1600W RMS KXA Class-D Monoblock 1-Ohm Stable Amplifier with Remote Level Control

• 800 Watts RMS x 1 @ 4 ohm
•1600 Watts RMS x 1 @ 2 ohm
• 1600 Watts RMS x 1 @ 1 ohm
• CEA-2006 Compliant
• SHOCwave Bass Restoration Processor
• Aluminum Heatsink
• Dimensions: 8-5/16" W x 11-3/16" L x 3-1/8" H

• 800 Watts RMS x 1 @ 4 ohm
•1600 Watts RMS x 1 @ 2 ohm
• 1600 Watts RMS x 1 @ 1 ohm
• CEA-2006 Compliant
• SHOCwave Bass Restoration Processor
• Aluminum Heatsink
• Dimensions: 8-5/16" W x 11-3/16" L x 3-1/8" H

Massive Audio E3 (Open Box, Great)

1400W RMS Class-D Monoblock Nano Edge Series Mini Amplifier

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1400W RMS Class-D Monoblock Nano Edge Series Mini Amplifier

• 700 Watts RMS x 1 @ 2 ohm
• 1400 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2800 Watts
• CTA-2006 Compliant
• Variable Bass Boost: 0 to +12 dB bass boost variable from 30-120Hz
• Variable low-pass filter: 60 - 220Hz
• Dimensions: 11.1"W x 5.9"L x 2.1"H

• 700 Watts RMS x 1 @ 2 ohm
• 1400 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2800 Watts
• CTA-2006 Compliant
• Variable Bass Boost: 0 to +12 dB bass boost variable from 30-120Hz
• Variable low-pass filter: 60 - 220Hz
• Dimensions: 11.1"W x 5.9"L x 2.1"H

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

600W RMS Class D SFB Series Monoblock Car Amplifier

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600W RMS Class D SFB Series Monoblock Car Amplifier

• 250 watts x 1 channel @ 4 ohm
• 350 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
• 350 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

AudioControl The Epicenter 600 (Open Box)

600W RMS Monoblock Epicenter Series Class D Amplifier w/ The Epicenter Bass Restoration Built-In

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600W RMS Monoblock Epicenter Series Class D Amplifier w/ The Epicenter Bass Restoration Built-In

• RMS: 200W x 1 @ 4 ohm, 350W x 1 @ 2 ohm, 600W x 1 @ 1 ohm
• THE EPICENTER® Digital Bass Restoration Built-in
•MILC™ Maximum Input Level Control
• Line-Level RCA Inputs and Active Speaker-Level Inputs)
• ACR-3 Remote Control Included
• 7.95" W x 9.00" L x 2.10" H

• RMS: 200W x 1 @ 4 ohm, 350W x 1 @ 2 ohm, 600W x 1 @ 1 ohm
• THE EPICENTER® Digital Bass Restoration Built-in
•MILC™ Maximum Input Level Control
• Line-Level RCA Inputs and Active Speaker-Level Inputs)
• ACR-3 Remote Control Included
• 7.95" W x 9.00" L x 2.10" H

JL Audio JX500/1D-FACTORY REFURBISHED

500W RMS, Monoblock Class D JX Series Full-Range Car Amplifier

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500W RMS, Monoblock Class D JX Series Full-Range Car Amplifier

• Peak: 235W x 1 @ 4 ohm, 300W x 1 @ 3 ohm, 410W x 1 @ 2 ohm
• Total RMS Power: 410W
• Class D Circuitry
• Bass Boost: 0-12 dB
• Variable Slope Low-Pass Filter
• Dimensions: 7-3/4"L x 7-3/4"W x 2-1/8"H

• Peak: 235W x 1 @ 4 ohm, 300W x 1 @ 3 ohm, 410W x 1 @ 2 ohm
• Total RMS Power: 410W
• Class D Circuitry
• Bass Boost: 0-12 dB
• Variable Slope Low-Pass Filter
• Dimensions: 7-3/4"L x 7-3/4"W x 2-1/8"H

JL Audio XD300/1-Open Box

300W Single-Channel Class D XD Series Subwoofer Monoblock Car Amplifier

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300W Single-Channel Class D XD Series Subwoofer Monoblock Car Amplifier

• 300W x 1-Chan @ 2 Ohm
• NexD Ultra-High Speed Topology
• Preamp RCA Outputs
• Variable High/Low-Pass Filter
• 3-Way System Protection Circuitry
• Remote Bass Input

• 300W x 1-Chan @ 2 Ohm
• NexD Ultra-High Speed Topology
• Preamp RCA Outputs
• Variable High/Low-Pass Filter
• 3-Way System Protection Circuitry
• Remote Bass Input

Belva BXD3K (Open Box, Great)

3000W Peak BX-Series Class-D Monoblock Car Audio Amplifier with Bass Remote

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3000W Peak BX-Series Class-D Monoblock Car Audio Amplifier with Bass Remote

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total Peak Power: 3000 watts
• Class D 1 ohm Stable Monoblock

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total Peak Power: 3000 watts
• Class D 1 ohm Stable Monoblock

JL Audio HD1200/1 OPEN BOX

1200W RMS, Monoblock Class D, HD Series Small Profile Car Amplifier with R.I.P.S. Technology

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1200W RMS, Monoblock Class D, HD Series Small Profile Car Amplifier with R.I.P.S. Technology

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total RMS Power: 1200W
• R.I.P.S. - Regulated, Intelligent Power Supply
• Single Cycle control - High Fidelity Class D
• 1 Pair of Buffered Preamps RCA Outputs
• Dimensions: 10.74"L x 7.85"W x 1.93"H

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total RMS Power: 1200W
• R.I.P.S. - Regulated, Intelligent Power Supply
• Single Cycle control - High Fidelity Class D
• 1 Pair of Buffered Preamps RCA Outputs
• Dimensions: 10.74"L x 7.85"W x 1.93"H

Kicker KXA2400.1 (44KXA24001) Open Box, Very Good Condition Used

2400W RMS KXA Class-D Monoblock 1-Ohm Stable Amplifier with Remote Level Control

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2400W RMS KXA Class-D Monoblock 1-Ohm Stable Amplifier with Remote Level Control

• 1200 Watts RMS x 1 @ 4 ohm
•2400 Watts RMS x 1 @ 2 ohm
• 2400 Watts RMS x 1 @ 1 ohm
• CEA-2006 Compliant
• SHOCwave Bass Restoration Processor
• Aluminum Heatsink
• Dimensions: 8-5/16" W x 15-1/2" L x 2-1/8" H

• 1200 Watts RMS x 1 @ 4 ohm
•2400 Watts RMS x 1 @ 2 ohm
• 2400 Watts RMS x 1 @ 1 ohm
• CEA-2006 Compliant
• SHOCwave Bass Restoration Processor
• Aluminum Heatsink
• Dimensions: 8-5/16" W x 15-1/2" L x 2-1/8" H

JL Audio HD750/1 Open Box

Monoblock Class D, HD Series Small Profile Car Amplifier with R.I.P.S. Technology

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Monoblock Class D, HD Series Small Profile Car Amplifier with R.I.P.S. Technology

JL Audio HD Series Monoblock Class D, Small Profile Car Amplifier with R.I.P.S. Technology • 750 watts x 1 Chan. RMS • MOSFET power supply • Preamp RCA outputs • RCA level inputs • Single Cycle Control™

JL Audio HD Series Monoblock Class D, Small Profile Car Amplifier with R.I.P.S. Technology • 750 watts x 1 Chan. RMS • MOSFET power supply • Preamp RCA outputs • RCA level inputs • Single Cycle Control™

Hifonics BX2200D R/B

2200W RMS, Brutus Series Class D Monoblock Amplifier

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2200W RMS, Brutus Series Class D Monoblock Amplifier

Brutus Series Monoblock Car Amplifier • 550W x 1 chan @ 4 Ohm • 1100W x 1 chan @ 2 Ohm • MOSFET Power Supply • Aluminum Alloy Heatsink • Bass Remote Included • Adjustable Accu-Cross Crossovers

Brutus Series Monoblock Car Amplifier • 550W x 1 chan @ 4 Ohm • 1100W x 1 chan @ 2 Ohm • MOSFET Power Supply • Aluminum Alloy Heatsink • Bass Remote Included • Adjustable Accu-Cross Crossovers

JL Audio Slash v2 500/1v2 Open Box

(Open Box) 500W RMS, Slash Version 2 Series Class D Monoblock Amplifier

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(Open Box) 500W RMS, Slash Version 2 Series Class D Monoblock Amplifier

Slash v2 Series Class D Monoblock Car Amplifier • 500W x 1 chan. @ 4 ohm • MOSFET power supply • Differential-balanced with RCA jack inputs • Preamp RCA outputs

Slash v2 Series Class D Monoblock Car Amplifier • 500W x 1 chan. @ 4 ohm • MOSFET power supply • Differential-balanced with RCA jack inputs • Preamp RCA outputs

JL Audio Slash 600/1v3- FACTORY REFURBISHED

600W RMS Slash Version 3 Series Class D Monoblock Amplifier

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600W RMS Slash Version 3 Series Class D Monoblock 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: 13-7/16"L x 9-1/4"W x 2-3/8"H

• 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: 13-7/16"L x 9-1/4"W x 2-3/8"H

JL Audio XD400/4 Open Box

400W, 4-Channel Class D XD Series Full-Range Car Amplifier

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400W, 4-Channel Class D XD Series Full-Range Car Amplifier

XD Series 4-Channel Class D Car Amplifier • 100W x 4-Chan @ 2 Ohm • NexD Ultra-High Speed Topology • Preamp RCA Outputs • Variable High/Low-Pass Filter • 3-Way System Protection Circuitry • Remote Bass Input

XD Series 4-Channel Class D Car Amplifier • 100W x 4-Chan @ 2 Ohm • NexD Ultra-High Speed Topology • Preamp RCA Outputs • Variable High/Low-Pass Filter • 3-Way System Protection Circuitry • Remote Bass Input

JL Audio Slash 600/1v3 LIKE NEW DAMAGED PACKAGING

600W RMS Monoblock Slash v3 Series Class D Car Amplifier

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600W RMS Monoblock Slash v3 Series Class D Car Amplifier

Like new Damaged Package
• 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

Like new Damaged Package
• 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

JL Audio Slash 1200/1v3 OPEN BOX COMPLETE

1200W RMS Monoblock Slash Series Class D Car Amplifier

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1200W RMS Monoblock Slash Series Class D Car Amplifier

Opened and Used
• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm, 1200W x 1 @ 1.5 ohm
• Total RMS Power: 1200W
• R.I.P.S. (Regulated, Intelligent Power Supply)
• Parametric Bass Boost EQ
• Fully Variable Infrasonic Filter
• Dimensions: 19-3/4"L x 9-1/4"W x 2-3/8"H

Opened and Used
• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm, 1200W x 1 @ 1.5 ohm
• Total RMS Power: 1200W
• R.I.P.S. (Regulated, Intelligent Power Supply)
• Parametric Bass Boost EQ
• Fully Variable Infrasonic Filter
• Dimensions: 19-3/4"L x 9-1/4"W x 2-3/8"H

JL Audio XDM400/4 (Open Box, Like New)

400W RMS Class D XDM Series 4 Channel Car and Marine Amplifier

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400W RMS Class D XDM Series 4 Channel Car and Marine 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 D 2 ohm Stable 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 D 2 ohm Stable 4-Channel Amplifier

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    FAQ Frequently asked questions in Discontinued Class-D Amplifiers


    Class D Amplifiers Frequently Asked Questions (FAQ)
    Class D amplifiers are a type of switching amplifier known for their high efficiency and compact size. Unlike traditional Class A, B, and AB amplifiers that use continuous analog voltage to amplify audio signals, Class D amplifiers employ a digital switching technique. This process rapidly switches the output transistors on and off, effectively turning them into binary switches that deliver the audio signal to the speaker. The switching nature of Class D amplifiers drastically reduces power wastage, resulting in higher efficiency and less heat production. As a result, Class D amplifiers are ideal for applications with limited space or power constraints, making them popular in car audio, home theater systems, and portable devices.
    Yes, modern Class D amplifiers have made significant advancements in audio fidelity and can deliver high-quality sound performance. While traditional audiophiles may have associated Class D with lower audio quality due to early models' limitations, today's Class D amplifiers have overcome many of these challenges. With advancements in switching technology, filtering, and feedback mechanisms, Class D amplifiers can now offer exceptional audio reproduction that rivals traditional Class AB amplifiers. Additionally, Class D amplifiers' efficiency and lower heat generation make them well-suited for high-power audio applications where traditional amplifiers would be impractical.
    Yes, Class D amplifiers are versatile and can power various speaker types, including subwoofers, woofers, mid-range, and tweeters. When selecting a Class D amplifier for your speakers, consider the power output (wattage) and impedance rating. Ensure that the amplifier's power rating matches or slightly exceeds your speakers' power handling capabilities to prevent underpowering or overpowering, which can lead to distortion or speaker damage. Additionally, check the amplifier's impedance range to ensure compatibility with your speakers' impedance. Most Class D amplifiers can handle both 4-ohm and 2-ohm loads, making them suitable for a wide range of speaker configurations.
    No, Class D amplifiers are known for their high efficiency, which results in significantly less heat generation compared to other amplifier classes like Class A or Class AB. The digital switching technique used in Class D amplifiers reduces power loss, resulting in a more efficient conversion of electrical energy into audio output. As a result, Class D amplifiers remain relatively cool even at high volume levels, making them suitable for space-constrained installations and applications where heat dissipation is a concern. Their cool operation also extends the lifespan of internal components and reduces the need for large heat sinks or fans.
    Yes, many Class D amplifiers support bridge mode, allowing you to increase the power output when driving a single speaker or subwoofer. In bridge mode, the amplifier combines the power output from two channels into a single channel, effectively doubling the power delivered to the speaker. However, it's essential to follow the manufacturer's guidelines and ensure that your amplifier supports bridging. Additionally, pay attention to the speaker's impedance requirements, as bridging may change the amplifier's impedance capabilities. If you're unsure or need assistance with bridging your Class D amplifier, contact Sonic Electronix's knowledgeable staff, who can help you find the right amplifier and configuration for your audio setup. With their compact size, high efficiency, and versatility, Class D amplifiers offer a compelling solution for various audio applications, delivering powerful and clear sound performance with minimal heat output.
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