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Discontinued Class-D Amplifiers

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Alpine PDX-F6 (Open Box)

600W PDX Series 4-Channel Power Density Digital Class D Car Amplifier

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600W PDX Series 4-Channel Power Density Digital Class D Car Amplifier

• Item Condition: Open Box
• RMS Power: 150W x 4-Chan. @ 4 ohm
• 600 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

• Item Condition: Open Box
• RMS Power: 150W x 4-Chan. @ 4 ohm
• 600 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

Soundstream SMA1-700D R/B

700W Max, Michel-Angelo Series Class D Monoblock Amplifier

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700W Max, Michel-Angelo Series Class D Monoblock Amplifier

Soundstream Michelangelo Series Amplifier • 475W x 1-Chan. @ 4 Ohm • 700W x 1-Chan. @ 2 Ohm • MOSFET Power Supply • Twin Stack Technology • Bass Remote Control Included • Tri-Guard Amp Protection

Soundstream Michelangelo Series Amplifier • 475W x 1-Chan. @ 4 Ohm • 700W x 1-Chan. @ 2 Ohm • MOSFET Power Supply • Twin Stack Technology • Bass Remote Control Included • Tri-Guard Amp Protection

Precision Power DCX 1500.1

1500W RMS, Class D MonoBlock Amplifier Factory R/B

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1500W RMS, Class D MonoBlock Amplifier Factory R/B

Class-D Monoblock Amplifier • 1000W RMS x 1 @ 2 • 1500W RMS x 1 @ 1 • QBASS PLUS Bass Boost • RCA Output • Phase Control • Adjustable Input Gain • Independant Output Crossover • PowerLOCK Connectors

Class-D Monoblock Amplifier • 1000W RMS x 1 @ 2 • 1500W RMS x 1 @ 1 • QBASS PLUS Bass Boost • RCA Output • Phase Control • Adjustable Input Gain • Independant Output Crossover • PowerLOCK Connectors

Hifonics ZRX1800.1D (Factory Refurbished)

1800W Max Monoblock Class D Zeus Series Car Amplifier

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1800W Max Monoblock Class D Zeus Series Car Amplifier

• Peak: 500W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1800W x 1 @ 1 ohm
• Total Peak Power: 1800W
• Class D Circuitry
• Variable Bass Boost: 0 to +10 dB at 50 Hz
• Wired Bass Remote Included
• Dimensions: 14-13/16"L x 10"W x 2-1/3"H

• Peak: 500W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1800W x 1 @ 1 ohm
• Total Peak Power: 1800W
• Class D Circuitry
• Variable Bass Boost: 0 to +10 dB at 50 Hz
• Wired Bass Remote Included
• Dimensions: 14-13/16"L x 10"W x 2-1/3"H

Audiobahn A12001DT R/B

2400W Max, Class D Monoblock Amplifier (Factory Refurbished)

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2400W Max, Class D Monoblock Amplifier (Factory Refurbished)

Class D Monoblock Amplifier • 2400W Max • 1200W RMS @ 1 ohm • Blue Digital Volt Meter Display • Dual Cooling Fans • 4-way protection circuitry • Variable Low-Pass Crossover: 50-150Hz • Cobalt blue illumination (with on/off selector)

Class D Monoblock Amplifier • 2400W Max • 1200W RMS @ 1 ohm • Blue Digital Volt Meter Display • Dual Cooling Fans • 4-way protection circuitry • Variable Low-Pass Crossover: 50-150Hz • Cobalt blue illumination (with on/off selector)

SoundStorm (SSL) EV4000D OPEN BOX INCOMPLETE

4000W Max, Evolution Series Class D Monoblock Power Amplifier

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4000W Max, Evolution Series Class D Monoblock Power Amplifier

Missing manual, used and previously installed
• RMS: 1600W x 1 @ 4 ohm
• Peak: 3000W x 1 @ 2 ohm, 4000W x 1 @ 1 ohm
• Wired Bass Level Remote
• Bass Boost: 0-18 dB
• DataLink Cable for Connecting Two Evolution Amps
• Dimensions: 10"D x 15"W x 2-3/8"H

Missing manual, used and previously installed
• RMS: 1600W x 1 @ 4 ohm
• Peak: 3000W x 1 @ 2 ohm, 4000W x 1 @ 1 ohm
• Wired Bass Level Remote
• Bass Boost: 0-18 dB
• DataLink Cable for Connecting Two Evolution Amps
• Dimensions: 10"D x 15"W x 2-3/8"H

Audiobahn A18001DT R/B

3600W Max, Class D MonoBlock Amplifier (Factory Refurbished)

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3600W Max, Class D MonoBlock Amplifier (Factory Refurbished)

3600W Max, Class D Monoblock Amplifier • 3600W Max • 1800W RMS @ 1 ohm • Blue Digital Volt Meter Display • Dual Cooling Fans • 4-way protection circuitry • Variable Low-Pass Crossover: 50-150Hz • Cobalt blue illumination (with on/off selector)

3600W Max, Class D Monoblock Amplifier • 3600W Max • 1800W RMS @ 1 ohm • Blue Digital Volt Meter Display • Dual Cooling Fans • 4-way protection circuitry • Variable Low-Pass Crossover: 50-150Hz • Cobalt blue illumination (with on/off selector)

Soundstream DTR1.2200D R/B

2200W RMS, Class D Monoblock D-Tower Series Amplifier

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2200W RMS, Class D Monoblock D-Tower Series Amplifier

Tower Series Monoblock Class D Car Amplifier • 1400W x 1 chan. @ 2 ohm • 2200W RMS • Vertical stereo amplifier • MOSFET power supply • Aluminum alloy heat sink • LED power and protection indicators

Tower Series Monoblock Class D Car Amplifier • 1400W x 1 chan. @ 2 ohm • 2200W RMS • Vertical stereo amplifier • MOSFET power supply • Aluminum alloy heat sink • LED power and protection indicators

Alpine PDX-4.100 Open Box

4-Channel Power Density Digital Amplifier (PDX4.100)

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4-Channel Power Density Digital Amplifier (PDX4.100)

4-Channel Power Density Digital Amplifier • 100W x 4 chan. @ 4 Ohm • class D amp design • stackable installation design • MOSFET power supply • quick connect power connectors

4-Channel Power Density Digital Amplifier • 100W x 4 chan. @ 4 Ohm • class D amp design • stackable installation design • MOSFET power supply • quick connect power connectors

MTX Audio TA7801 Thunder 7801 R/B**MISSING BASS REMOTE**

REFURBISHED, MISSING BASS REMOTE Class D Monoblock Super Amplifier Thunder7801

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REFURBISHED, MISSING BASS REMOTE Class D Monoblock Super Amplifier Thunder7801

Thunder Super Amplifier • 800W RMS x 1 @ 2 • 1200W RMS x 1 @ 1 • Prizm EFX • Xtant Cooling Technology • Wired Remote • Built-In Capacitor Terminals

Thunder Super Amplifier • 800W RMS x 1 @ 2 • 1200W RMS x 1 @ 1 • Prizm EFX • Xtant Cooling Technology • Wired Remote • Built-In Capacitor Terminals

Alpine PDX-4.100 R/B

4-Channel Power Density Digital Amplifier (PDX4.100)

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4-Channel Power Density Digital Amplifier (PDX4.100)

4-Channel Power Density Digital Amplifier • 100W x 4 chan. @ 4 Ohm • class D amp design • stackable installation design • MOSFET power supply • quick connect power connectors

4-Channel Power Density Digital Amplifier • 100W x 4 chan. @ 4 Ohm • class D amp design • stackable installation design • MOSFET power supply • quick connect power connectors

Focal FPX1.100 (OPEN BOX, LIKE NEW)

Monoblock Class D Premium Amplifier (1 x 420 W RMS @ 4 ohms)

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Monoblock Class D Premium Amplifier (1 x 420 W RMS @ 4 ohms)

• Monoblock Class D Amplifier
• 420W RMS x 1 at 4 ohm
• 700 W RMS x 1 at 2 ohm
• 1000W RMS x 1 at 1 ohm
• Very small size for power output
• Audio Mos-Fets – Optimized efficiency

• Monoblock Class D Amplifier
• 420W RMS x 1 at 4 ohm
• 700 W RMS x 1 at 2 ohm
• 1000W RMS x 1 at 1 ohm
• Very small size for power output
• Audio Mos-Fets – Optimized efficiency

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

Hifonics Colossus 6.5K (Factory Refurbished)

Mount Olympus 3200W RMS Ultimate Performance Dual Monoblock Ultra Class D Amplifier

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Mount Olympus 3200W RMS Ultimate Performance Dual Monoblock Ultra Class D Amplifier

• 3250W RMS
• 1625W x 2 Chan @ 1 Ohm
• Wired HFR-G1 Remote Bass Level Control
• Variable Bass Boost
• Alloy Finned Heatsink

• 3250W RMS
• 1625W x 2 Chan @ 1 Ohm
• Wired HFR-G1 Remote Bass Level Control
• Variable Bass Boost
• Alloy Finned Heatsink

Image Dynamics SQ1200.1D Damaged Packaging Only (New)

1200W RMS SQ Series Class-D Monoblock 1-Ohm Stable Amplifier with Bass Knob Included

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1200W RMS SQ Series Class-D Monoblock 1-Ohm Stable Amplifier with Bass Knob Included

• 400 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2400 Watts
• Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Dimensions: 8-1/2"W x 20"L x 2-1/4"H

• 400 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2400 Watts
• Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Dimensions: 8-1/2"W x 20"L x 2-1/4"H

Power Acoustik RZ1-3500D

3500W Peak (2100W RMS) Class D RAZOR Series Monoblock Car Amplifier (with Bass Remote)

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3500W Peak (2100W RMS) Class D RAZOR Series Monoblock Car Amplifier (with Bass Remote)

• 900 watts x 1 channel @ 4 ohm
• 1400 watts x 1 channel @ 2 ohm
• Total RMS Power: 2100 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 900 watts x 1 channel @ 4 ohm
• 1400 watts x 1 channel @ 2 ohm
• Total RMS Power: 2100 watts
• Class D 2 ohm Stable Monoblock Amplifier

Hifonics X2200.1D (Factory Refurbished)

2200W BRUTUS X-14 Series Class-D Monoblock 1-Channel Amplifier

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2200W BRUTUS X-14 Series Class-D Monoblock 1-Channel Amplifier

• RMS Power: 950W x 1 @ 4 ohm, 1600W x 1 @ 2 ohm, 2200W x 1 @ 1 ohm
• Total Peak Power: 2200W
• Variable Low Pass Filter
• 13.39"W x 2.5"H x 9.49"L

• RMS Power: 950W x 1 @ 4 ohm, 1600W x 1 @ 2 ohm, 2200W x 1 @ 1 ohm
• Total Peak Power: 2200W
• Variable Low Pass Filter
• 13.39"W x 2.5"H x 9.49"L

Rockford Fosgate Power T1000-1bd Open Box

(Open Box) 1000W RMS, Compact Class BD Monoblock Car Amplifier

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(Open Box) 1000W RMS, Compact Class BD Monoblock Car Amplifier

Compact Class DB Monoblock Car Amplifier • 350W x 1 Chan. @ 4 Ohm • 650W x 1 Chan. @ 2 Ohm • 1000W x 1 Chan. @ 1 Ohm • Discrete Surface Mount Components • MEHSA MOSFET Power Supply • Utilizes TO-247 MOSFETs •

Compact Class DB Monoblock Car Amplifier • 350W x 1 Chan. @ 4 Ohm • 650W x 1 Chan. @ 2 Ohm • 1000W x 1 Chan. @ 1 Ohm • Discrete Surface Mount Components • MEHSA MOSFET Power Supply • Utilizes TO-247 MOSFETs •

JL Audio 250/1 Factory R/B

Factory Refurbished to Like New, Class D Monoblock Amplifier

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Factory Refurbished to Like New, Class D Monoblock Amplifier

250W RMS Monoblock Amplifier

250W RMS Monoblock Amplifier

Hifonics X1500.1D-RB (Factory Refurbished)

1500W BRUTUS X-14 Series Class-D Monoblock 1-Channel Amplifier

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1500W BRUTUS X-14 Series Class-D Monoblock 1-Channel Amplifier

• RMS Power: 600W x 1 @ 4 ohm, 1100W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Total Peak Power: 1500W
• CEA-2006 Compliant/Preamp Outputs/LPF
• 12.60"W x 2.5"H x 9.49"L

• RMS Power: 600W x 1 @ 4 ohm, 1100W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Total Peak Power: 1500W
• CEA-2006 Compliant/Preamp Outputs/LPF
• 12.60"W x 2.5"H x 9.49"L

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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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