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Sundown Audio SFB1800.5D (Open Box, Like New)

1000W RMS Class D SFB Series 5 Channel Car Amplifier

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1000W RMS Class D SFB Series 5 Channel Car Amplifier

• 250 watts x 5 channel + @ 4 ohm
• 500 watts x 5 channel + @ 2 ohm
• Bridged: @ 4 ohm + @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable 5-Channel-Channel Amplifier

• 250 watts x 5 channel + @ 4 ohm
• 500 watts x 5 channel + @ 2 ohm
• Bridged: @ 4 ohm + @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable 5-Channel-Channel Amplifier

Sundown Audio SAM-100.4 (Open Box, Like New)

400W RMS Class D 4 Channel Powersport Amplifier with Bluetooth

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400W RMS Class D 4 Channel Powersport Amplifier with Bluetooth

• 700 watts x 4 channel @ 4 ohm
• 400 watts x 4 channel @ 2 ohm
• Bridged: 700 watts x 4 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

• 700 watts x 4 channel @ 4 ohm
• 400 watts x 4 channel @ 2 ohm
• Bridged: 700 watts x 4 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

JL Audio XDM1000/5 - New (Damaged Packaging, Product A+)

1000W RMS Class D XDM Series 5 Channel Car and Marine Amplifier

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1000W RMS Class D XDM Series 5 Channel Car and Marine Amplifier

• 75 watts x 4 channel + 400 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 5-Channel Amplifier

• 75 watts x 4 channel + 400 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 5-Channel Amplifier

Alpine KTP-445A Power Pack - New (Damaged Packaging, Product A+)

180W RMS Class D Power Pack Series 4 Channel Car Amplifier

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180W RMS Class D Power Pack Series 4 Channel Car Amplifier

• Power Pack 4-Channel Class D for Select Alpine In-Dash Receivers
• 45 watts x 4 channel @ 4 Ohm
• Adjustable Gain Switch
• Plug-and-Play
• CEA-2006 Compliant

• Power Pack 4-Channel Class D for Select Alpine In-Dash Receivers
• 45 watts x 4 channel @ 4 Ohm
• Adjustable Gain Switch
• Plug-and-Play
• CEA-2006 Compliant

JL Audio MV600/1 - New (Damaged Packaging, Product A+)

600W RMS Class D MVi Series Monoblock Marine Amplifier

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600W RMS Class D MVi Series Monoblock Marine Amplifier

• 400 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

• 400 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 JD500/1 - New (Damaged Packaging, Product A+)

500W RMS Class D JD Series Monoblock Car Amplifier

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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

• 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

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JL Audio VX600/6i - New (Damaged Packaging, Product A+)

600W RMS Class D VXi Series 6 Channel Car Amplifier with Built-in DSP

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600W RMS Class D VXi Series 6 Channel Car Amplifier with Built-in DSP

• 75 watts RMS x 6 @ 4 ohm
• 100 watts RMS x 6 @ 2 ohm
• 200 watts RMS x 3 @ 4 ohm, Bridged
• Built-In Digital Signal Processor
• Adjustments Controlled Through TüN App
• Chassis Hides Mounting Hardware
• Dimensions: 9.81" W x 5.53" L x 2.12" H

• 75 watts RMS x 6 @ 4 ohm
• 100 watts RMS x 6 @ 2 ohm
• 200 watts RMS x 3 @ 4 ohm, Bridged
• Built-In Digital Signal Processor
• Adjustments Controlled Through TüN App
• Chassis Hides Mounting Hardware
• Dimensions: 9.81" W x 5.53" L x 2.12" H

Rockford Fosgate Prime R2-1200X1 (Open Box, Like New)

1200W RMS Class D Prime Series Monoblock Car Amplifier

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1200W RMS Class D Prime Series Monoblock Car Amplifier

• 400 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 400 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

Rockford Fosgate R2-300X4 (Open Box, Like New)

300W RMS Class D Prime Series 4 Channel Car Amplifier

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300W RMS Class D Prime Series 4 Channel Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 50 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

JL Audio JD400/4 - New (Damaged Packaging, Product A+)

400W RMS Class D JD Series 4 Channel Car Amplifier

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400W RMS Class D JD Series 4 Channel Car 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-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-Channel Amplifier

Hertz DPower 4 (Open-box, Like New)

600W Peak (300W RMS) Class D DPower Series 4-Channel Full Range Car Amplifier

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600W Peak (300W RMS) Class D DPower Series 4-Channel Full Range Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 65 watts x 4 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

• 50 watts x 4 channel @ 4 ohm
• 65 watts x 4 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

JL Audio VX1000/5i (Open Box, Like New)

1000W RMS Class D VXi Series 5 Channel Car Amplifier

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1000W RMS Class D VXi Series 5 Channel Car Amplifier

• 75 watts x 4 channel + 400 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 5-Channel Amplifier

• 75 watts x 4 channel + 400 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 5-Channel Amplifier

JL Audio JD400/4 (Open Box, Like New)

400W RMS Class D JD Series 4 Channel Car Amplifier

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400W RMS Class D JD Series 4 Channel Car 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

Hertz Venezia V6 (Open Box, Great)

1740W RMS Class D Venezia Series 6-Channel Full Range Marine Amplifier

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1740W RMS Class D Venezia Series 6-Channel Full Range Marine Amplifier

• 160 watts x 6 channel @ 4 ohm
• 290 watts x 6 channel @ 2 ohm
• Bridged: 580 watts x 3 channel @ 4 ohm
• Total RMS Power: 1740 watts
• Class D 2 ohm Stable 6-Channel-Channel Amplifier

• 160 watts x 6 channel @ 4 ohm
• 290 watts x 6 channel @ 2 ohm
• Bridged: 580 watts x 3 channel @ 4 ohm
• Total RMS Power: 1740 watts
• Class D 2 ohm Stable 6-Channel-Channel Amplifier

Hertz Venezia V6 (Open-box, Like New)

1740W RMS Class D Venezia Series 6-Channel Full Range Marine Amplifier

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1740W RMS Class D Venezia Series 6-Channel Full Range Marine Amplifier

• 160 watts x 6 channel @ 4 ohm
• 290 watts x 6 channel @ 2 ohm
• Bridged: 580 watts x 3 channel @ 4 ohm
• Total RMS Power: 1740 watts
• Class D 2 ohm Stable 6-Channel-Channel Amplifier

• 160 watts x 6 channel @ 4 ohm
• 290 watts x 6 channel @ 2 ohm
• Bridged: 580 watts x 3 channel @ 4 ohm
• Total RMS Power: 1740 watts
• Class D 2 ohm Stable 6-Channel-Channel Amplifier

Hertz HCP 5D (Open Box, Great)

1500W Peak (750W RMS) Class D Hertz Compact Power (HCP) Series 5-Channel Full Range Car Amplifier

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1500W Peak (750W RMS) Class D Hertz Compact Power (HCP) Series 5-Channel Full Range Car Amplifier

• 55 watts x 4 channel + 160 watts x 1 channel @ 4 ohm
• 90 watts x 4 channel + 280 watts x 1 channel @ 2 ohm
• Bridged: 180 watts x 2 channel + 160 watts x 1 channel @ 4 ohm
• Bridged: 180 watts x 2 channel + 280 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

• 55 watts x 4 channel + 160 watts x 1 channel @ 4 ohm
• 90 watts x 4 channel + 280 watts x 1 channel @ 2 ohm
• Bridged: 180 watts x 2 channel + 160 watts x 1 channel @ 4 ohm
• Bridged: 180 watts x 2 channel + 280 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

Hertz SP 4.500 (Open Box, Great)

600W RMS Class D SPL Show Series 4-Channel Compact Full Range Car Amplifier

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600W RMS Class D SPL Show Series 4-Channel Compact Full Range Car Amplifier

• 4 Channel: 90 watts x 4 channel @ 4 ohm
• 4 Channel: 150 watts x 4 channel @ 2 ohm
• 3 Channel: 80 watts x 2 channel @ 4 ohm + 330 watts x 1 channel @ 4 ohm
• 3 Channel: 145 watts x 2 channel @ 2 ohm + 300 watts x 1 channel @ 4 ohm
• 2 Channel: 300 watts x 2 channel @ 4-ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Marine Amplifier

• 4 Channel: 90 watts x 4 channel @ 4 ohm
• 4 Channel: 150 watts x 4 channel @ 2 ohm
• 3 Channel: 80 watts x 2 channel @ 4 ohm + 330 watts x 1 channel @ 4 ohm
• 3 Channel: 145 watts x 2 channel @ 2 ohm + 300 watts x 1 channel @ 4 ohm
• 2 Channel: 300 watts x 2 channel @ 4-ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Marine Amplifier

JL Audio XDM600/6 (Open Box, Like New)

600W RMS Class D XMD Series 6 Channel Car and Marine Amplifier

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600W RMS Class D XMD Series 6 Channel Car and Marine Amplifier

• 75 watts x 6 channel @ 4 ohm
• 100 watts x 6 channel @ 2 ohm
• Bridged: 200 watts x 3 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 6-Channel Amplifier

• 75 watts x 6 channel @ 4 ohm
• 100 watts x 6 channel @ 2 ohm
• Bridged: 200 watts x 3 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 6-Channel Amplifier

Sundown Audio SFB1800.5D (Open Box, Great)

1000W RMS Class D SFB Series 5 Channel Car Amplifier

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1000W RMS Class D SFB Series 5 Channel Car Amplifier

• 250 watts x 5 channel + @ 4 ohm
• 500 watts x 5 channel + @ 2 ohm
• Bridged: @ 4 ohm + @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable 5-Channel-Channel Amplifier

• 250 watts x 5 channel + @ 4 ohm
• 500 watts x 5 channel + @ 2 ohm
• Bridged: @ 4 ohm + @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable 5-Channel-Channel Amplifier

JL Audio RD1000/1 (Open Box, Like New)

1000W RMS Class D RD Series Monoblock Car Amplifier

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1000W RMS Class D RD 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

• 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

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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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