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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.
Brutus Series (77)
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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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American Bass VFL44801D Open Box Complete

4500W VFL Series Class D Mono Hybrid Car Amplifier

VFL44801D big DISCONTINUED
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American Bass VFL44801D Open Box Complete

4500W VFL Series Class D Mono Hybrid Car Amplifier

• Item Condition: Open Box Complete
• 4500W VFL Series Class D Mono Hybrid Car Amplifier
• MAX Power at 1 Ohm: 4500 x 1
• Remote bass knob
• Frequency Response: 15Hz ~ 300KHz
• Signal to Noise Ratio: 85db
• Four way protection: DC, Speaker short, Thermal, Voltage

• Item Condition: Open Box Complete
• 4500W VFL Series Class D Mono Hybrid Car Amplifier
• MAX Power at 1 Ohm: 4500 x 1
• Remote bass knob
• Frequency Response: 15Hz ~ 300KHz
• Signal to Noise Ratio: 85db
• Four way protection: DC, Speaker short, Thermal, Voltage

Boss AR1500M(open box complete)

1500W Max Armor Series Class A/B Monoblock Amplifier with Remote Subwoofer Level Control Included

AR1500M big DISCONTINUED
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Boss AR1500M(open box complete)

1500W Max Armor Series Class A/B Monoblock Amplifier with Remote Subwoofer Level Control Included

• RMS: 563W x 1 @ 4 ohm
• Peak: 1500W x 1 @ 2 ohm
• Wired Bass Remote Included
• Bass Boost 0-18 dB
• Heavy Duty Aluminum Alloy Heatsink
• Dimensions: 10-1/3"L x 5"W x 2-3/16"H

• RMS: 563W x 1 @ 4 ohm
• Peak: 1500W x 1 @ 2 ohm
• Wired Bass Remote Included
• Bass Boost 0-18 dB
• Heavy Duty Aluminum Alloy Heatsink
• Dimensions: 10-1/3"L x 5"W x 2-3/16"H

Kole Audio TRAX1-1800D (TRAX 1-1800D)

1800W Max, TRAX Series Class D Digital Monoblock Amplifier

TRAX1-1800D big DISCONTINUED
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Kole Audio TRAX1-1800D (TRAX 1-1800D)

1800W Max, TRAX Series Class D Digital Monoblock Amplifier

TRAX Series Class D Digital Monoblock Amplifier • 1100W x 1 chan. @ 1 ohm • 820W x 1 chan. @ 2 ohm • 550W x 1 chan. @ 4 ohm • 1800W Max • PWM Power Supply • Midnight Blue Finish • Three-Way Protection •

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TRAX Series Class D Digital Monoblock Amplifier • 1100W x 1 chan. @ 1 ohm • 820W x 1 chan. @ 2 ohm • 550W x 1 chan. @ 4 ohm • 1800W Max • PWM Power Supply • Midnight Blue Finish • Three-Way Protection •

Precision Power PPI D2000/1

2000W Max, Class D Monoblock Car Amplifier

D2000/1 big DISCONTINUED
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Precision Power PPI D2000/1

2000W Max, Class D Monoblock Car Amplifier

2000W Class D MonoBlock Amplifier • 600W x 1 chan. @ 2 Ohm • 1000W x 1 chan. @ 1 Ohm • Q-BASS • PWM design • 1 Ohm stable

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2000W Class D MonoBlock Amplifier • 600W x 1 chan. @ 2 Ohm • 1000W x 1 chan. @ 1 Ohm • Q-BASS • PWM design • 1 Ohm stable

Crunch GPA2000.1

2000W Monoblock Ground Pounder Series Class A/B Amplifier

GPA2000.1 big DISCONTINUED
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Crunch GPA2000.1

2000W Monoblock Ground Pounder Series Class A/B Amplifier

• Peak Power: 500W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 2000 x 1 @ 1 ohm
• Variable Bass Boost
• Total Peak Power: 2000W
• 9.05"W x 17.87"L x 2.29"H

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• Peak Power: 500W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 2000 x 1 @ 1 ohm
• Variable Bass Boost
• Total Peak Power: 2000W
• 9.05"W x 17.87"L x 2.29"H

Boss CW2000M

2000W Max, Chaos Wired Series Monoblock Amplifier with Remote Level Control

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Boss CW2000M

2000W Max, Chaos Wired Series Monoblock Amplifier with Remote Level Control

Chaos Wired Series Monoblock Class D Car Amplifier • 2000 Watts Max x 1 Chan. @ 2 Ohm • 500 Watts x 1 Chan. @ 4 Ohm • Matte Black Aluminum Alloy Heatsink • Soft Turn-On Circuit • 2-Way System Protection Circuitry

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Chaos Wired Series Monoblock Class D Car Amplifier • 2000 Watts Max x 1 Chan. @ 2 Ohm • 500 Watts x 1 Chan. @ 4 Ohm • Matte Black Aluminum Alloy Heatsink • Soft Turn-On Circuit • 2-Way System Protection Circuitry

Planet Audio TRQ1.5000D

5000W Monoblock Torque Series Class D Amplifier

Get bigger discounts with our bundled Savings:
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Planet Audio TRQ1.5000D

5000W Monoblock Torque Series Class D Amplifier

• RMS Power: 1800W x 1 @ 4 ohm, 2500W x 1 @ 2 ohm, 3500W x 1 @ 1 ohm
• Total Peak Power: 5000W
• Variable Low Pass Filter
• Dimensions: 9.5" W x 18.5" L x 2.125" H

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• RMS Power: 1800W x 1 @ 4 ohm, 2500W x 1 @ 2 ohm, 3500W x 1 @ 1 ohm
• Total Peak Power: 5000W
• Variable Low Pass Filter
• Dimensions: 9.5" W x 18.5" L x 2.125" H

Kicker Monoblock DXA250.1 (41DXA250.1) Open Box Complete

500W Max (250W RMS) D-Series Monoblock Class D Subwoofer Amplifier

DXA250.1-3 big DISCONTINUED
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Kicker Monoblock DXA250.1 (41DXA250.1) Open Box Complete

500W Max (250W RMS) D-Series Monoblock Class D Subwoofer Amplifier

• RMS Power: 125W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 8-1/8" W x 7-3/16" D x 2-3/8" H

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• RMS Power: 125W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 8-1/8" W x 7-3/16" D x 2-3/8" H

Soundstream TA1.600D

600W Monoblock Tarantula Series Class D Amplifier

Save Money with Sonic Exclusive Bundles:
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H:H
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Soundstream TA1.600D

600W Monoblock Tarantula Series Class D Amplifier

• RMS Power: 250W x 1 @ 4 ohm, 375W x 1 @ 2 ohm, 600W x 1 @ 1 ohm
• Audiophile Grade IRTM Transistors
• Low Pass Filter
• Dimensions: 8" W x 10.50" L x 2" H

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H:H
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• RMS Power: 250W x 1 @ 4 ohm, 375W x 1 @ 2 ohm, 600W x 1 @ 1 ohm
• Audiophile Grade IRTM Transistors
• Low Pass Filter
• Dimensions: 8" W x 10.50" L x 2" H

Nitro BMWX-3888

4000W Monoblock Digital BMWX Series Amplifier with Remote Bass Control

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Nitro BMWX-3888

4000W Monoblock Digital BMWX Series Amplifier with Remote Bass Control

4000W Digital Monoblock Amplifier • Built-in Low-Pass Crossovers • Bass Remote Control Included • PWM MOSFET Power Supply • Selectable Bass Boost • 2-Way System Protection Circuitry

4000W Digital Monoblock Amplifier • Built-in Low-Pass Crossovers • Bass Remote Control Included • PWM MOSFET Power Supply • Selectable Bass Boost • 2-Way System Protection Circuitry

MB Quart RM1000.1

1000W Single Channel Monoblock Reference MYKRO Series Hybrid Class D Car Power Amplifier

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MB Quart RM1000.1

1000W Single Channel Monoblock Reference MYKRO Series Hybrid Class D Car Power Amplifier

• RMS: 400W x 1 @ 4 ohm, 700W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 1000W
• Wired Bass Remote Included
• Bass Boost: 0-12 dB
• Preamp RCA Outputs
• Dimensions: 6-1/2"W x 10-1/4"D x 1-15/16"H

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• RMS: 400W x 1 @ 4 ohm, 700W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 1000W
• Wired Bass Remote Included
• Bass Boost: 0-12 dB
• Preamp RCA Outputs
• Dimensions: 6-1/2"W x 10-1/4"D x 1-15/16"H

Audiobahn A12005DN

1200W Max, Intake Series Class D Monoblock Amplifier

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Audiobahn A12005DN

1200W Max, Intake Series Class D Monoblock Amplifier

Class-D Intake Series Monoblock Amplifier • 600W RMS x 1 @ 2 • 375W RMS x 1 @ 4 • High and Low Level Inputs • 0-18dB Bass Boost • Variable Low-Pass and Subsonic Filters

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Class-D Intake Series Monoblock Amplifier • 600W RMS x 1 @ 2 • 375W RMS x 1 @ 4 • High and Low Level Inputs • 0-18dB Bass Boost • Variable Low-Pass and Subsonic Filters

Crossfire C51000D

1000W RMS Monoblock C5 Series Class D Car Amplifier

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Crossfire C51000D

1000W RMS Monoblock C5 Series Class D Car Amplifier

Monoblock C5 Series Class D Car Amplifier • 4 ohm: 250 watts x 1 chan. • 2 ohm: 500 watts x 1 chan. • 1 ohm: 1000 watts x 1 chan. • Pulse Width Modulated MOSFET Power Supply • Preamp RCA Outputs to Daisy Chain Multiple Amps

Monoblock C5 Series Class D Car Amplifier • 4 ohm: 250 watts x 1 chan. • 2 ohm: 500 watts x 1 chan. • 1 ohm: 1000 watts x 1 chan. • Pulse Width Modulated MOSFET Power Supply • Preamp RCA Outputs to Daisy Chain Multiple Amps

Boss CXXD3800

3800W MAX Class D Single Channel Monoblock Chaos Exxtreme Series Amplifier

6-Year Manufacturer's Extended Warranty When Bought Here!

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Boss CXXD3800

3800W MAX Class D Single Channel Monoblock Chaos Exxtreme Series Amplifier

• RMS: 1600W x 1 @ 4 ohm
• Peak: 2600W x 1 @ 2 ohm, 3800W x 1 @ 1 ohm
• Class D Circuitry
• Bass Boost 0-18 dB at 50 Hz
• Speaker Level Inputs
• Dimensions: 11"W x 14-15/16"L x 2-7/8"H

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6-Year Manufacturer's Extended Warranty When Bought Here!

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• RMS: 1600W x 1 @ 4 ohm
• Peak: 2600W x 1 @ 2 ohm, 3800W x 1 @ 1 ohm
• Class D Circuitry
• Bass Boost 0-18 dB at 50 Hz
• Speaker Level Inputs
• Dimensions: 11"W x 14-15/16"L x 2-7/8"H

Massive Audio D 2400

2400W MAx (1200W RMS) Monoblock D Block Series Car Amplifier

D 2400 big DISCONTINUED
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Massive Audio D 2400

2400W MAx (1200W RMS) Monoblock D Block Series Car Amplifier

• RMS: 350W x 1 @ 4 ohm, 650W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2400W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB
• Linkable with RCA
• Dimensions: 11-3/4"L x 6-1/2"W x 2-1/8"H

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• RMS: 350W x 1 @ 4 ohm, 650W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2400W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB
• Linkable with RCA
• Dimensions: 11-3/4"L x 6-1/2"W x 2-1/8"H

Power Acoustik OVN1-2000D

2000W Max, Class D Monoblock Gothic Series Amplifier

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Power Acoustik OVN1-2000D

2000W Max, Class D Monoblock Gothic Series Amplifier

Gothic Series Class D Monoblock Car Amplifier • 600W x 1 Chan. @ 4 Ohm • 900W x 1 Chan. @ 2 Ohm • 1200W x 1 Chan. @ 1 Ohm • Pulse Width Modulation Circuitry • MOSFET Power Supply • Bridged Synchronization •

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Gothic Series Class D Monoblock Car Amplifier • 600W x 1 Chan. @ 4 Ohm • 900W x 1 Chan. @ 2 Ohm • 1200W x 1 Chan. @ 1 Ohm • Pulse Width Modulation Circuitry • MOSFET Power Supply • Bridged Synchronization •

Alpine PDX-M6

600W RMS PDX Series Monoblock Class-D Digital Car Amplifier

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Alpine PDX-M6

600W RMS PDX Series Monoblock Class-D Digital Car Amplifier

• RMS: 600W x 1 @ 4 ohm, 600W x 1 @ 2 ohm
• Total RMS Power: 600W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H

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• RMS: 600W x 1 @ 4 ohm, 600W x 1 @ 2 ohm
• Total RMS Power: 600W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H

PowerBass Xtreme XAX-500D

500W RMS XAX Series Class D Monoblock Mini Amplifier

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PowerBass Xtreme XAX-500D

500W RMS XAX Series Class D Monoblock Mini Amplifier

XAX Series Monoblock Class D Mini Car Amplifier • 1000W MAX • High Efficiency SMD Circuit Technology • Damping Control Circuit • Blue LED Logo, Power And Speaker Terminal Lighting • Platinum-Plated Tiffany RCA Inputs

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XAX Series Monoblock Class D Mini Car Amplifier • 1000W MAX • High Efficiency SMD Circuit Technology • Damping Control Circuit • Blue LED Logo, Power And Speaker Terminal Lighting • Platinum-Plated Tiffany RCA Inputs

Boss OL3KD

3000W Max, Class D Monoblock Outlaw Series Amplifier

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Boss OL3KD

3000W Max, Class D Monoblock Outlaw Series Amplifier

Boss Outlaw Monoblock Class D Car Amplifier • 1100W x 1 Chan. @ 4 ohm • 2200W x 1 Chan. @ 2 ohm • 3000W x 1 Chan. @ 1 ohm • Wired Remote Bass • Preamp RCA Outputs • Tuned Bass EQ • LED Indicators • Subsonic Filter

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Boss Outlaw Monoblock Class D Car Amplifier • 1100W x 1 Chan. @ 4 ohm • 2200W x 1 Chan. @ 2 ohm • 3000W x 1 Chan. @ 1 ohm • Wired Remote Bass • Preamp RCA Outputs • Tuned Bass EQ • LED Indicators • Subsonic Filter

Soundstream TX1.1300D

1300W RMS, Tarantula Series Class D Monoblock Amplifier

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Soundstream TX1.1300D

1300W RMS, Tarantula Series Class D Monoblock Amplifier

Tarantula Series Monoblock Class D Car Amplifier • 900W x 1 Chan. @ 2 Ohm • 520W x 1 Chan. @ 4 Ohm • Double Side PCB And SMD Components • Remote Bass Level Input • Active X-Over • 3-Way System Protection Circuitry

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Tarantula Series Monoblock Class D Car Amplifier • 900W x 1 Chan. @ 2 Ohm • 520W x 1 Chan. @ 4 Ohm • Double Side PCB And SMD Components • Remote Bass Level Input • Active X-Over • 3-Way System Protection Circuitry

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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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