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2008 Scion xD

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

Overview Upgrade your Stereo 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 2008 Scion xD

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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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.
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.
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.
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.
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.

Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
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Cerwin Vega CVP2000.1D with Belva 4 Gauge Amp Kit

2000W Peak (400W RMS) CVP Series Class-AB Monoblock Amplifier with Bass Remote

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Cerwin Vega CVP2000.1D with Belva 4 Gauge Amp Kit

2000W Peak (400W RMS) CVP Series Class-AB Monoblock Amplifier with Bass Remote

• 250 watts x 1 channel @ 4 ohm
• 400 watts x 1 channel @ 2 ohm
• Total RMS Power: 400 watts
• Class A/B 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 250 watts x 1 channel @ 4 ohm
• 400 watts x 1 channel @ 2 ohm
• Total RMS Power: 400 watts
• Class A/B 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Rockford Fosgate Punch PM500X1bd with Amplifier Wiring Kit

500W Punch Series Class-bd Monoblock Marine Amplifier

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Rockford Fosgate Punch PM500X1bd with Amplifier Wiring Kit

500W Punch Series Class-bd Monoblock Marine Amplifier

• RMS: 150W x 1 @ 4 ohm, 300W x 1 @ 2 ohm, 500W x 1 @ 1 ohm
• CEA-2006 Compliant
• Features C.L.E.A.N. Set-up
• Protected against Dust, UV, & Corrosion
• Marine grade two part epoxy coating on circuit boards

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• RMS: 150W x 1 @ 4 ohm, 300W x 1 @ 2 ohm, 500W x 1 @ 1 ohm
• CEA-2006 Compliant
• Features C.L.E.A.N. Set-up
• Protected against Dust, UV, & Corrosion
• Marine grade two part epoxy coating on circuit boards

NVX - Worth the Envy - Direct to Consumer Car Audio

Rockford Fosgate Power T1000-1bdCP + NVX XKIT42 4 Gauge Amp Wiring Kit

1000W RMS Power Series Constant Power Monoblock Class BD Amplifier

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Rockford Fosgate Power T1000-1bdCP + NVX XKIT42 4 Gauge Amp Wiring Kit

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
• Includes NVX XKIT42 4 Gauge Amp Wiring Kit

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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
• Includes NVX XKIT42 4 Gauge Amp Wiring Kit

Diamond Audio HXM800.1D with NVX 4 Gauge Amp Kit

800W RMS HXM Series Class-D Monoblock Full-Range Marine Amplifier

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Diamond Audio HXM800.1D with NVX 4 Gauge Amp Kit

800W RMS HXM Series Class-D Monoblock Full-Range Marine Amplifier

• 350 watts x 1 channel @ 4 ohm
• 550 watts x 1 channel @ 2 ohm
• 800 watts x 1 channel @ 1 ohm
• Total RMS Power: 800 watts
• Ultra-compact, high density aluminum alloy chassis provides superior thermal stability
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 350 watts x 1 channel @ 4 ohm
• 550 watts x 1 channel @ 2 ohm
• 800 watts x 1 channel @ 1 ohm
• Total RMS Power: 800 watts
• Ultra-compact, high density aluminum alloy chassis provides superior thermal stability
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Autotek MM-2025.1D (Mean Machine) with Belva 4 Gauge Amp Kit

2000W Peak Class D Mean Machine Series Monoblock Car Amplifier

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Autotek MM-2025.1D (Mean Machine) with Belva 4 Gauge Amp Kit

2000W Peak Class D Mean Machine Series Monoblock Car Amplifier

• 500 watts Peak @ 4 ohm
• 1000 watts Peak @ 2 ohm
• 2000 watts Peak @ 1 ohm
• Total Peak Power: 2000 watts
• Class D Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 500 watts Peak @ 4 ohm
• 1000 watts Peak @ 2 ohm
• 2000 watts Peak @ 1 ohm
• Total Peak Power: 2000 watts
• Class D Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Kenwood KAC-M5001 with NVX 8 Gauge Amp Kit

300W RMS KAC Series Class-D Monoblock Marine Amplifier

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Kenwood KAC-M5001 with NVX 8 Gauge Amp Kit

300W RMS KAC Series Class-D Monoblock Marine Amplifier

• 200 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 200 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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Rockford Fosgate Punch P1000X1bd with Amplifier Wiring Kit

1000W RMS Punch Series Monoblock Class BD Car Power Amplifier

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Rockford Fosgate Punch P1000X1bd with Amplifier Wiring Kit

1000W RMS Punch Series Monoblock Class BD Car Power Amplifier

• RMS: 300W x 1 @ 4 ohm, 500W 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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• RMS: 300W x 1 @ 4 ohm, 500W 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

Alpine R2-A75M with NVX 4 Gauge Amp Kit

750W RMS R-Series Class-D Monoblock Car Amplifier

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Alpine R2-A75M with NVX 4 Gauge Amp Kit

750W RMS R-Series Class-D Monoblock Car Amplifier

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

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

Alpine S2-A60M with Belva 4 Gauge Amp Kit

600W RMS S-Series Class-D Monoblock Car Amplifier

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Alpine S2-A60M with Belva 4 Gauge Amp Kit

600W RMS S-Series Class-D Monoblock Car Amplifier

• 330 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• Class D 2 ohm Stable Monoblock Amplifier

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• 330 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• Class D 2 ohm Stable Monoblock Amplifier

Belva BB200ABv2 with Belva 8 Gauge Amp Kit

500W Peak Class A/B Monoblock Amplifier

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Belva BB200ABv2 with Belva 8 Gauge Amp Kit

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
• Includes Remote bass knob
• Includes Amplifier Wiring Kit

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

Rockford PM100X1K + NVX XKIT82 8 Gauge Amp Wiring Kit

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

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Rockford PM100X1K + NVX XKIT82 8 Gauge Amp Wiring Kit

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
• Includes NVX XKIT82 8 Gauge Amp Wiring Kit

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$389.98

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• PM100X1K
• Punch Marine 100 Watt Full-Range Mono Amplifier (pair)
• Number of Channels: 1
• Frequency Response: 60Hz - 20kHz +/- 1.0dB
• Includes NVX XKIT82 8 Gauge Amp Wiring Kit

Pioneer GM-DX971 with Amplifier Wiring Kit

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

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Pioneer GM-DX971 with Amplifier Wiring Kit

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

• 500 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
• CEA-2006 Compliant
• Includes Amplifier Wiring Kit
• Class D 1 ohm Stable Monoblock Amplifier

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• 500 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
• CEA-2006 Compliant
• Includes Amplifier Wiring Kit
• Class D 1 ohm Stable Monoblock Amplifier

Diamond Audio DES500.1D with NVX 4 Gauge Amp Kit

500W RMS DES Series Class-D 1-Channel Full Range Amplifier

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Diamond Audio DES500.1D with NVX 4 Gauge Amp Kit

500W RMS DES Series Class-D 1-Channel Full Range Amplifier

• 450 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• Total RMS Power: 500 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 450 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• Total RMS Power: 500 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

JBL Club A600 with NVX 8 Gauge Amp Kit

600W RMS Club Series Class-D Compact Monoblock Amplifier with Bass Remote

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JBL Club A600 with NVX 8 Gauge Amp Kit

600W RMS Club Series Class-D Compact Monoblock Amplifier with Bass Remote

• 350 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
• Includes Amplifier Wiring Kit

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• 350 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
• Includes Amplifier Wiring Kit

Infinity Reference 6001A with Belva 8 Gauge Amp Kit

600W RMS Reference Series Class D Monoblock Amplifier with Remote Bass Knob

REFERENCE6001A_BAK82 big
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Infinity Reference 6001A with Belva 8 Gauge Amp Kit

600W RMS Reference Series Class D Monoblock Amplifier with Remote Bass Knob

• 350 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
• Includes Amplifier Wiring Kit

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• 350 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
• Includes Amplifier Wiring Kit

Deaf Bonce MLA-800 with Amplifier Wiring Kit

790W RMS Machete Series Class-D Monoblock Amplifier

MLA-800, BAK42 big
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Deaf Bonce MLA-800 with Amplifier Wiring Kit

790W RMS Machete Series Class-D Monoblock Amplifier

• 340 watts x 1 channel @ 4 ohm
• 540 watts x 1 channel @ 2 ohm
• 790 watts x 1 channel @ 1 ohm
• Total RMS Power: 790 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 340 watts x 1 channel @ 4 ohm
• 540 watts x 1 channel @ 2 ohm
• 790 watts x 1 channel @ 1 ohm
• Total RMS Power: 790 watts
• Class D 1 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Diamond Audio DMD250.1D with Belva 4 Gauge Amp Kit

250W RMS DMD Series Class-D Monoblock Amplifier

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Diamond Audio DMD250.1D with Belva 4 Gauge Amp Kit

250W RMS DMD Series Class-D Monoblock Amplifier

• 160 watts x 4 channel @ 4 ohm
• 250 watts x 2 channel @ 2 ohm
• Total RMS Power: 250 watts
• Dampening Factor: > 250
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 160 watts x 4 channel @ 4 ohm
• 250 watts x 2 channel @ 2 ohm
• Total RMS Power: 250 watts
• Dampening Factor: > 250
• Class D 2 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

Cerwin-Vega CVPM1000.1D with Belva 4 Gauge Amp Kit

1000W Peak (500W RMS) CVP Series Class-D Monoblock Amplifier

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Cerwin-Vega CVPM1000.1D with Belva 4 Gauge Amp Kit

1000W Peak (500W RMS) CVP Series Class-D Monoblock Amplifier

• 310 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
• Includes Amplifier Wiring Kit

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• 310 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
• Includes Amplifier Wiring Kit

American Bass GODFATHER 11D with NVX 8 Gauge Amp Kit

Godfather Series Class-D Monoblock Amplifier

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American Bass GODFATHER 11D with NVX 8 Gauge Amp Kit

Godfather Series Class-D Monoblock Amplifier

• Adjustable bass boost for customizable sound preferences
• Class D Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• Adjustable bass boost for customizable sound preferences
• Class D Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

DS18 H-KO5 with NVX 1/0 Gauge Amp Kit

5000W RMS HOOLIGAN KO Series Class-D Monoblock Amplifier, Voltmeter, Clip Indicator Made In Korea

HKO5_XKIT02 big
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DS18 H-KO5 with NVX 1/0 Gauge Amp Kit

5000W RMS HOOLIGAN KO Series Class-D Monoblock Amplifier, Voltmeter, Clip Indicator Made In Korea

• 2200 watts x 1 channel @ 4 ohm
• 3500 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 0.5 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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• 2200 watts x 1 channel @ 4 ohm
• 3500 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 0.5 ohm Stable Monoblock Amplifier
• Includes Amplifier Wiring Kit

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    FAQ for Monoblock Sub Amplifiers in 2008 xD

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 2008 Scion xD?

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

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

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