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2024 Lexus IS300

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Single, 1-channel monoblock sub amplifiers for when you add a sub

Overview Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Amplifiers for Powering a Sub for 2024 Lexus IS300

Some vehicles require an amp bypass module, a line-output converter like the NVX XLCA2 or AudioControl LC2i, or a DSP to integrate with your factory radio and avoid bass roll-off. Bass roll-off occurs when a factory radio's crossover is designed only for the original equipment speakers, resulting in a not complete signal being sent to your new aftermarket amp.

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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.
Power Series (14)
FRP Series (12)
Punch Series (12)
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CX Series (5)
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Reference Series (5)
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Brutus BG Series (4)
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VFL Stealth Series (2)
Alpha Series (1)
AP Series (1)
Colossus Classic Series (1)
COLOSSUS Series (1)
Compact Mean Machine Series (1)
CVPM Series (1)
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EV Series (1)
Excelon Motorsports Series (1)
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FX Series (1)
Gen-X (1)
GM Digital Series (1)
HCCA Series (1)
HCP Series (1)
HED Series (1)
HMP Series (1)
HRPM Series (1)
HTM Series (1)
HXM Series (1)
Key Series (1)
KM Series (1)
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LC Series (1)
M Series (1)
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Marine Series (1)
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N Series (1)
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Status Series (1)
Stealth Bomber Series (1)
Street Reference (1)
VEGA Series (1)
Venezia Series (1)
Warhorse Series (1)
X Series (1)
XFL Series (1)
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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NVX XQA6001 (Open Box, Great)

600W RMS XQ-Series SQ Class D 1-Ohm Stable Monoblock Amplifier with X-Boost

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NVX XQA6001 (Open Box, Great)

600W RMS XQ-Series SQ Class D 1-Ohm Stable Monoblock Amplifier with X-Boost

• 250 watts x 1 channel @ 4 ohm
• 400 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

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• 250 watts x 1 channel @ 4 ohm
• 400 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

Limited time!

Belva BB200ABv2 (Open Box, Good)

500W Peak Class A/B Monoblock Amplifier

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Belva BB200ABv2 (Open Box, Good)

500W Peak Class A/B Monoblock Amplifier

• Class A/B Monoblock Amplifier
• Adjustable Gain Controls
• Low-Pass Filter: 40-300Hz
• Bass Boost: +0-12DB
• One pair of preamp outputs
• Remote bass knob included

Save 30% off an NVX XKIT82 Amp Kit at Checkout!
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NVX XKIT82

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Wet Sounds STX MICRO-1 (Like New (Open Box))

600W Peak Class D Stealth STX Series Compact Monoblock Marine and Powersports Amplifier

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Wet Sounds STX MICRO-1 (Like New (Open Box))

600W Peak Class D Stealth STX Series Compact Monoblock Marine and Powersports Amplifier

• 250 watts x 1 channel @ 4 ohm
• 420 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total Peak Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Alpine KTA-200M (Like New (Open Box))

400W Peak (200W RMS) Class D Power Pack Series Monoblock Car Amplifier

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Alpine KTA-200M (Like New (Open Box))

400W Peak (200W RMS) Class D Power Pack Series Monoblock Car Amplifier

• 200 watts x 1 channel @ 4 ohm
• 200 watts x 1 channel @ 2 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable Monoblock Amplifier

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• 200 watts x 1 channel @ 4 ohm
• 200 watts x 1 channel @ 2 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable Monoblock Amplifier

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Rockford Fosgate Punch P300X1 + FREE $25 Gift Card

300W RMS Punch Series Monoblock Class AB Car Power Amplifier

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Rockford Fosgate Punch P300X1 + FREE $25 Gift Card

300W RMS Punch Series Monoblock Class AB Car Power Amplifier

• RMS: 200W x 1 @ 4 ohm, 300W x 1 @ 2 ohm
• Total RMS Power: 300W
• Built-in NOMAD Circuit Protects Amplifier
• Tuned Bass EQ: 0 to +18 dB
• Cast Aluminum Heatsink with Dynamic Thermal Management
• Dimensions: 9-7/8"L x 7-3/4"W x 2-3/8"H

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• RMS: 200W x 1 @ 4 ohm, 300W x 1 @ 2 ohm
• Total RMS Power: 300W
• Built-in NOMAD Circuit Protects Amplifier
• Tuned Bass EQ: 0 to +18 dB
• Cast Aluminum Heatsink with Dynamic Thermal Management
• Dimensions: 9-7/8"L x 7-3/4"W x 2-3/8"H

Rockford Fosgate Power T750X1bd + FREE $100 Gift Card

750W Power Series Ultra Compact Class-BD Monoblock Amplifier

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Rockford Fosgate Power T750X1bd + FREE $100 Gift Card

750W Power Series Ultra Compact Class-BD Monoblock Amplifier

• 500 Watts RMS x 1 @ 4 ohm
• 750 Watts RMS x 1 @ 2 ohm
• 750 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 1500 Watts
• CEA-2006 Compliant
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Dual extruded heat sinks
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Real time thermal sensing with Rollback technology
• Dimensions: 4.3"W x 8.3"L x 1.6"H

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• 500 Watts RMS x 1 @ 4 ohm
• 750 Watts RMS x 1 @ 2 ohm
• 750 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 1500 Watts
• CEA-2006 Compliant
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Dual extruded heat sinks
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Real time thermal sensing with Rollback technology
• Dimensions: 4.3"W x 8.3"L x 1.6"H

Rockford PM100X1K + FREE $50 Gift Card

Two Compact Full-Range Monoblock Amplifiers 60 watts RMS x 1 (each)

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Rockford PM100X1K + FREE $50 Gift Card

Two Compact Full-Range Monoblock Amplifiers 60 watts RMS x 1 (each)

• PM100X1K
• Punch Marine 100 Watt Full-Range Mono Amplifier (pair)
• Number of Channels: 1
• Frequency Response: 60Hz - 20kHz +/- 1.0dB

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• PM100X1K
• Punch Marine 100 Watt Full-Range Mono Amplifier (pair)
• Number of Channels: 1
• Frequency Response: 60Hz - 20kHz +/- 1.0dB

JL Audio JD500/1 (Open Box, Great)

500W RMS Class D JD Series Monoblock Car Amplifier

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JL Audio JD500/1 (Open Box, Great)

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

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Rockford Fosgate Power T1000-1bdCP + Free $100 Gift Card

1000W RMS Power Series Constant Power Monoblock Class BD Amplifier

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Rockford Fosgate Power T1000-1bdCP + Free $100 Gift Card

1000W RMS Power Series Constant Power Monoblock Class BD Amplifier

• RMS: 700W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 1000W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 13-11/16"L x 8-3/16"W x 2-3/16"H

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• RMS: 700W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 1000W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 13-11/16"L x 8-3/16"W x 2-3/16"H

Rockford Fosgate M5-1000X1 + FREE $150 Gift Card

1000 Watt Mono Element Ready™ Amplifier

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Rockford Fosgate M5-1000X1 + FREE $150 Gift Card

1000 Watt Mono Element Ready™ Amplifier

• RMS Power: 500 W x 1 @ 4 ohm, 750 W x 1 @ 2 ohm, 750 W x 1 @ 1 ohm
• Total Peak Power: 1000 W
• CEA-2006 Compliant/Preamp Outputs/LPF

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• RMS Power: 500 W x 1 @ 4 ohm, 750 W x 1 @ 2 ohm, 750 W x 1 @ 1 ohm
• Total Peak Power: 1000 W
• CEA-2006 Compliant/Preamp Outputs/LPF

JL Audio RD1000/1 (Open Box, Great)

1000W RMS Class D RD Series Monoblock Car Amplifier

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JL Audio RD1000/1 (Open Box, Great)

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

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14
List price $579.99
-15% $492.99

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Rockford Fosgate Power T1000-1bdCP (Open Box, Great)

1000W RMS Class BD Power Series Monoblock Car Amplifier

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Rockford Fosgate Power T1000-1bdCP (Open Box, Great)

1000W RMS Class BD Power Series Monoblock Car Amplifier

• 700 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class BD 1 ohm Stable Monoblock Amplifier

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List price $659.99
-15% $560.99

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Alpine KTA-200M - Open Box, Great

200 watts RMS Class D Monoblock Subwoofer Amplifier

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Alpine KTA-200M - Open Box, Great

200 watts RMS Class D Monoblock Subwoofer Amplifier

• 200 watts x 1 channel @ 4 ohm
• 200 watts x 1 channel @ 2 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable Monoblock Amplifier

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List price $300.00
-29% $212.46

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Rockford Fosgate P1000X1BD - Open Box, Great

1000W RMS Punch Series Monoblock Class BD Car Power Amplifier

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Rockford Fosgate P1000X1BD - Open Box, Great

1000W RMS Punch Series Monoblock Class BD Car Power Amplifier

• RMS: 300W x 1 @ 4 ohm, 600W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 1000W
• CEA-2006 Compliant
• Tuned Bass EQ: 0 to +18 dB
• Super Efficient Class BD Circuitry
• Dimensions: 13-5/16"L x 7-3/4"W x 2-3/8"H

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List price $549.99
-21% $436.73

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Kicker CXA400.1 (46CXA4001T) with Bass Remote Control

400W RMS CX-Series Class-D Monoblock Amplifier

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Kicker CXA400.1 (46CXA4001T) with Bass Remote Control

400W RMS CX-Series Class-D Monoblock Amplifier

• 150 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• 400 watts x 1 channel @ 1 ohm
• Class D 1 ohm Stable Monoblock Amplifier
Complete level or volume control that can be remotely mounted nearly anywhere
• Convenient Under-dash mount
• Includes remote knob, cable, mounting clip, mounting screws

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List price $259.98
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• 150 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• 400 watts x 1 channel @ 1 ohm
• Class D 1 ohm Stable Monoblock Amplifier
Complete level or volume control that can be remotely mounted nearly anywhere
• Convenient Under-dash mount
• Includes remote knob, cable, mounting clip, mounting screws

Rockford Fosgate R2-500X1(Open Box, Great)

500W RMS Class D Prime Series Monoblock Car Amplifier

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Rockford Fosgate R2-500X1(Open Box, Great)

500W RMS Class D Prime Series Monoblock Car Amplifier

• 300 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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13
List price $309.99
-15% $263.49

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JL Audio RD500/1 (Open Box, Great)

500W RMS Class D RD Series Monoblock Car Amplifier

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JL Audio RD500/1 (Open Box, Great)

500W RMS Class D RD 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

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List price $399.99
-15% $339.99

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JL Audio HD1200/1 (Open Box, Great)

1200W RMS Class D HD Series Monoblock Car Amplifier

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JL Audio HD1200/1 (Open Box, Great)

1200W RMS Class D HD Series Monoblock Car Amplifier

• 1200 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• Total RMS Power: 1200 watts
• Class D 1.5 ohm Stable Monoblock Amplifier

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List price $1549.99
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JL Audio HD750/1 - Open Box, Great

750W RMS, Monoblock Class D, HD Series Small Profile Car Amplifier with R.I.P.S. Technology

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JL Audio HD750/1 - Open Box, Great

750W RMS, Monoblock Class D, HD Series Small Profile Car Amplifier with R.I.P.S. Technology

• RMS: 750W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 750W x 1 @ 1 ohm
• Total RMS Power: 750W
• 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

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List price $1049.99
-20% $837.37

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Rockford Fosgate R2-750X1 (Open Box, Great)

750W RMS Class D Prime Series Monoblock Car Amplifier

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Rockford Fosgate R2-750X1 (Open Box, Great)

750W RMS Class D Prime Series Monoblock Car Amplifier

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 750 watts x 1 channel @ 1 ohm
• Total RMS Power: 750 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $379.99
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    FAQ for Monoblock Sub Amplifiers in 2024 IS300

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 2024 Lexus IS300?

    A: Yes this page includes all the best Monoblock Sub Amplifiers that work in your IS300.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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