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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.
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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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SPL FX1-3000D

Class D Monoblock Amplifier

FX1-3000D big DISCONTINUED
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SPL FX1-3000D

Class D Monoblock Amplifier

FX1 Series 1-Channel Class D Car Amplifier • 900W x 1 chan. @ 4 ohm • 1300W x 1 chan. @ 2 ohm • 170000W x 1 chan. @ 1 ohm • 3000W x 1 chan. Max • Nickel Plated Heavy Duty Power & Speaker Terminals

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FX1 Series 1-Channel Class D Car Amplifier • 900W x 1 chan. @ 4 ohm • 1300W x 1 chan. @ 2 ohm • 170000W x 1 chan. @ 1 ohm • 3000W x 1 chan. Max • Nickel Plated Heavy Duty Power & Speaker Terminals

SPL FX1-4000D

Class D 4000 Watt Monoblock Amplifier

FX1-4000D big DISCONTINUED
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SPL FX1-4000D

Class D 4000 Watt Monoblock Amplifier

FX1 Series 1-Channel Class D Car Amplifier • 1200W x 1 chan. @ 4 ohm • 1700W x 1 chan. @ 2 ohm • 2200W x 1 chan. @ 1 ohm • 4000W x 1 chan. Max • Nickel Plated Heavy Duty Power & Speaker Terminals

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FX1 Series 1-Channel Class D Car Amplifier • 1200W x 1 chan. @ 4 ohm • 1700W x 1 chan. @ 2 ohm • 2200W x 1 chan. @ 1 ohm • 4000W x 1 chan. Max • Nickel Plated Heavy Duty Power & Speaker Terminals

Hifonics Brutus BRZ2100.1D

2100W RMS Brutus Series 1-Channel Monoblock Super Class D Amplifier (BRZ 2100.1D)

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Hifonics Brutus BRZ2100.1D

2100W RMS Brutus Series 1-Channel Monoblock Super Class D Amplifier (BRZ 2100.1D)

Brutus Series Monoblock Class D Car Amplifier • 2100W x 1-Chan. @ 1 Ohm • 1400W x 1-Chan. @ 2 Ohm • 700W x 1-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • Phase Shift • Silver-Plated RCA Inputs

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Brutus Series Monoblock Class D Car Amplifier • 2100W x 1-Chan. @ 1 Ohm • 1400W x 1-Chan. @ 2 Ohm • 700W x 1-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • Phase Shift • Silver-Plated RCA Inputs

Hifonics BXi 610 (BXi610)

600W Max, Brutus BXi Series Monoblock Amplifier

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Hifonics BXi 610 (BXi610)

600W Max, Brutus BXi Series Monoblock Amplifier

Brutus BXi Series Class AB Monoblock Car Amplifier • 150W x 1 Chan. @ 4 Ohm • 300W x 1 Chan. @ 2 Ohm • 600W x 1 Chan. @ 1 Ohm • MOSFET Power Supply • Soft Turn-On Circuitry • 4-Way System Protection

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Brutus BXi Series Class AB Monoblock Car Amplifier • 150W x 1 Chan. @ 4 Ohm • 300W x 1 Chan. @ 2 Ohm • 600W x 1 Chan. @ 1 Ohm • MOSFET Power Supply • Soft Turn-On Circuitry • 4-Way System Protection

Hifonics Zeus ZRX1200.1D Amplifier w/Belva 1.0 Farad Capacitor + Belva 2000 Watt Max Handling Amp Kit

1200W Max Zeus Series Class D Monoblock Amplifier w/ 1.0 Farad Capacitor & 4 AWG Amp Kit

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Hifonics Zeus ZRX1200.1D Amplifier w/Belva 1.0 Farad Capacitor + Belva 2000 Watt Max Handling Amp Kit

1200W Max Zeus Series Class D Monoblock Amplifier w/ 1.0 Farad Capacitor & 4 AWG Amp Kit

• Hifonics ZRX1200.1D 1200W Max Zeus Series Class D Monoblock Amplifier
• Belva BAK42 Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Belva BB1D 1.0 Farad Capacitor
• RMS: 400W x 1 @ 4 ohm
• Premium Power and Ground Wire Provides Optimal Power Transfer

• Hifonics ZRX1200.1D 1200W Max Zeus Series Class D Monoblock Amplifier
• Belva BAK42 Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Belva BB1D 1.0 Farad Capacitor
• RMS: 400W x 1 @ 4 ohm
• Premium Power and Ground Wire Provides Optimal Power Transfer

Soundstream PA1.5000D

5000W Max (2500W RMS) Picasso Series Class D Monoblock 1-Ohm Stable Amplifier with Bass Knob Included

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Soundstream PA1.5000D

5000W Max (2500W RMS) Picasso Series Class D Monoblock 1-Ohm Stable Amplifier with Bass Knob Included

• 1100 Watts RMS x 1 @ 4 ohm
• 1750 Watts RMS x 1 @ 2 ohm
• 2500 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 5000 Watts
• Subsonic filter: 10 - 50 Hz , 12 dB/octave
• Variable low-pass filter: 30 - 250 Hz, 12 dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost
• Dimensions: 8.25"W x 19.7"L x 2"H

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• 1100 Watts RMS x 1 @ 4 ohm
• 1750 Watts RMS x 1 @ 2 ohm
• 2500 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 5000 Watts
• Subsonic filter: 10 - 50 Hz , 12 dB/octave
• Variable low-pass filter: 30 - 250 Hz, 12 dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost
• Dimensions: 8.25"W x 19.7"L x 2"H

Autotek SS1200.1

1200W Peak Super Sport Series Class-A/B Monoblock 2-Ohm Stable Amplifier with Bass Knob Included

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Autotek SS1200.1

1200W Peak Super Sport Series Class-A/B Monoblock 2-Ohm Stable Amplifier with Bass Knob Included

• 600 Watts x 1 @ 4 ohm
• 1200 Watts x 1 @ 2 ohm
• Total Peak Power: 1200 Watts
•Built-in Low Pass and Subsonic Filters
• Variable Bass Boost
• Heavy DUty Aluminum Heatsink
• Dimensions: 9.75" W x 10.25" L x 2" H

• 600 Watts x 1 @ 4 ohm
• 1200 Watts x 1 @ 2 ohm
• Total Peak Power: 1200 Watts
•Built-in Low Pass and Subsonic Filters
• Variable Bass Boost
• Heavy DUty Aluminum Heatsink
• Dimensions: 9.75" W x 10.25" L x 2" H

** CRAZY DEAL!! ** MTX Audio TA5601 Thunder 5601

Class D Monoblock Amplifier Thunder5601

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** CRAZY DEAL!! ** MTX Audio TA5601 Thunder 5601

Class D Monoblock Amplifier Thunder5601

600 watts RMS x 1 at 2 ohm • variable low-pass filter • Class D design • preamp outputs • speaker-level inputs with SmartEngage • subsonic filter • wired remote bass boost/cut

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600 watts RMS x 1 at 2 ohm • variable low-pass filter • Class D design • preamp outputs • speaker-level inputs with SmartEngage • subsonic filter • wired remote bass boost/cut

Power Acoustik EG1-7000D

3500W RMS Class-D Monoblock 1-Ohm Stable Amplifier with Bass Knob

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Power Acoustik EG1-7000D

3500W RMS Class-D Monoblock 1-Ohm Stable Amplifier with Bass Knob

• 1100 Watts RMS x 1 @ 4 ohm
• 2300 Watts RMS x 1 @ 2 ohm
• 3500 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 7000 Watts
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +12 dB bass boost
• Subsonic filter: 20 - 50 Hz , 12 dB/octave
• Dimensions: 9"W x 16.25"L x 2.25"H

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• 1100 Watts RMS x 1 @ 4 ohm
• 2300 Watts RMS x 1 @ 2 ohm
• 3500 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 7000 Watts
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +12 dB bass boost
• Subsonic filter: 20 - 50 Hz , 12 dB/octave
• Dimensions: 9"W x 16.25"L x 2.25"H

Planet Audio ZR900.1 R/B

900W Max, Class D Monoblock Subwoofer Amplifier

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Planet Audio ZR900.1 R/B

900W Max, Class D Monoblock Subwoofer Amplifier

Class D Monoblock Subwoofer Amplifier • 900W Max • 525 Watts x 1 Chan. @ 2 Ohm • 300 Watts x 1 Chan. @ 4 Ohm • 35 Nanosecond Rectifiers • Preamp RCA Outputs • Master/Slave Modes • 3-Way System Protection Circuitry

Class D Monoblock Subwoofer Amplifier • 900W Max • 525 Watts x 1 Chan. @ 2 Ohm • 300 Watts x 1 Chan. @ 4 Ohm • 35 Nanosecond Rectifiers • Preamp RCA Outputs • Master/Slave Modes • 3-Way System Protection Circuitry

Crunch PZA2000.1

2000W 1-Channel Monoblock Power Zone Series Car Amplifier

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Crunch PZA2000.1

2000W 1-Channel Monoblock Power Zone Series Car Amplifier

Monoblock Power Zone Series Amplifier • Bass Boost (0-12 dB @ 45Hz) • Preamp RCA Outputs • 4-Way System Protection Circuitry • Heavy Duty Aluminum Alloy Heatsink • Fully Adjustable 12 dB Crossover • Nickle-Plated RCA Level Inputs

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Monoblock Power Zone Series Amplifier • Bass Boost (0-12 dB @ 45Hz) • Preamp RCA Outputs • 4-Way System Protection Circuitry • Heavy Duty Aluminum Alloy Heatsink • Fully Adjustable 12 dB Crossover • Nickle-Plated RCA Level Inputs

Rockford Fosgate Prime R250X1 + FREE Amplifier Wiring Kit

250W RMS Monoblock Class AB Prime Series Amplifier with Premium Amp Kit

BAK82,R250X1 big DISCONTINUED
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Rockford Fosgate Prime R250X1 + FREE Amplifier Wiring Kit

250W RMS Monoblock Class AB Prime Series Amplifier with Premium Amp Kit

• RMS: 150W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Total RMS Power: 250W
• CEA-2006 Compliant
• Punch Bass: 0 to +12 dB
• Wired Bass Remote Included
• Dimensions: 11-1/4"L x 6-3/4"W x 2"H

• RMS: 150W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Total RMS Power: 250W
• CEA-2006 Compliant
• Punch Bass: 0 to +12 dB
• Wired Bass Remote Included
• Dimensions: 11-1/4"L x 6-3/4"W x 2"H

Soundstream STL1.600D

600W Stealth Series Stackable Class D Compact Monoblock Amplifier

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Soundstream STL1.600D

600W Stealth Series Stackable Class D Compact Monoblock Amplifier

Stealth Series Monoblock Class D Car Amplifier • 600W x 1 Chan. @ 2 Ohm • 400W 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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Stealth Series Monoblock Class D Car Amplifier • 600W x 1 Chan. @ 2 Ohm • 400W x 1 Chan. @ 4 Ohm • Double Side PCB And SMD Components • Remote Bass Level Input • Active X-Over • 3-Way System Protection Circuitry

SoundStorm (SSL) PSY1500M

1500W Max Psyclone Series Monoblock Class AB Amplifier with Wired Bass Knob

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SoundStorm (SSL) PSY1500M

1500W Max Psyclone Series Monoblock Class AB Amplifier with Wired Bass Knob

• RMS: 250W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm
• Total Peak Power: 1500W
• Wired Bass Remote Included
• Bass Boost: 0-18 dB
• Speaker Level Inputs
• Dimensions: 2-7/16"W x 9-1/16"L x 11-1/4"H

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• RMS: 250W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm
• Total Peak Power: 1500W
• Wired Bass Remote Included
• Bass Boost: 0-18 dB
• Speaker Level Inputs
• Dimensions: 2-7/16"W x 9-1/16"L x 11-1/4"H

Memphis SRX1200D.1

1200W RMS SRX Series Class-D Monoblock Amplifier with Bass Remote

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Memphis SRX1200D.1

1200W RMS SRX Series Class-D Monoblock Amplifier with Bass Remote

• 400 watts x 1 channel @ 4 Ohm
• 750 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

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• 400 watts x 1 channel @ 4 Ohm
• 750 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

Planet Audio TRQ1.3000D

3000W Monoblock Torque Series Class D Amplifier

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Planet Audio TRQ1.3000D

3000W Monoblock Torque Series Class D Amplifier

• RMS Power: 1000W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 2100W x 1 @ 1 ohm
• Max Power Output: 3000W
• Variable Low Pass Filter
• Dimensions: 9.5" W x 13.2" L x 2.125" H

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• RMS Power: 1000W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 2100W x 1 @ 1 ohm
• Max Power Output: 3000W
• Variable Low Pass Filter
• Dimensions: 9.5" W x 13.2" L x 2.125" H

Hifonics ZXX-2400.1D

2400W Peak Zeus Series Class-D Monoblock 1-Ohm Stable Amplifier (ZXX 2400 1D)

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Hifonics ZXX-2400.1D

2400W Peak Zeus Series Class-D Monoblock 1-Ohm Stable Amplifier (ZXX 2400 1D)

• 650 Watts Peak x 1 @ 4 ohm
• 1200 Watts Peak x 1 @ 2 ohm
• 2400 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 2400 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 17.3" W x 10" L x 2.4" H

8

• 650 Watts Peak x 1 @ 4 ohm
• 1200 Watts Peak x 1 @ 2 ohm
• 2400 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 2400 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 17.3" W x 10" L x 2.4" H

Rockford Fosgate Punch P600.1bd

600 Watt Class-bd Monoblock Amplifier (2006-2007 MODEL)

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Rockford Fosgate Punch P600.1bd

600 Watt Class-bd Monoblock Amplifier (2006-2007 MODEL)

600W Class-bd Monoblock Amplifier • 325W x 1 chan. @ 4 Ohm • 600W x 1 chan. @ 2 Ohm • mass heatsink design • special design TO-247 MOSFETs • top mounted LED indicators • CEA-2006 compliant

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600W Class-bd Monoblock Amplifier • 325W x 1 chan. @ 4 Ohm • 600W x 1 chan. @ 2 Ohm • mass heatsink design • special design TO-247 MOSFETs • top mounted LED indicators • CEA-2006 compliant

Crunch PZX1500.1

1500W Monoblock PZR Series Class AB Amplifier

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Crunch PZX1500.1

1500W Monoblock PZR Series Class AB Amplifier

• RMS Power: 750W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm
• Total Peak Power: 1500W
• Variable Low Pass Filter

1

• RMS Power: 750W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm
• Total Peak Power: 1500W
• Variable Low Pass Filter

Memphis 16-MC1000D

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Memphis 16-MC1000D

1100W Class-D Monoblock Subwoofer Amplifier • 1100W RMS x 1 @ 1 Ohm • Black Pearl Finish • 0 - 18 dB Bass Boost • Adjustable Input Level • Adjustable Low-Pass and Subsonic Filters • RCA Outputs

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1100W Class-D Monoblock Subwoofer Amplifier • 1100W RMS x 1 @ 1 Ohm • Black Pearl Finish • 0 - 18 dB Bass Boost • Adjustable Input Level • Adjustable Low-Pass and Subsonic Filters • RCA Outputs

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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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