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2004 Audi A6 Quattro

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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 2004 Audi A6 Quattro

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 (17)
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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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DS18 G1800.1D

1800W Peak (600W RMS) Class D GEN-X Series Monoblock Car Amplifier with Bass Remote

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DS18 G1800.1D

1800W Peak (600W RMS) Class D GEN-X Series Monoblock Car Amplifier with Bass Remote

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

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Earthquake Sound Mini D2500

2500W Peak (2000W RMS) Class D MiNi Series Monoblock Car Amplifier

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Earthquake Sound Mini D2500

2500W Peak (2000W RMS) Class D MiNi Series Monoblock Car Amplifier

• 850 watts x 1 channel @ 4 ohm
• 1800 watts x 1 channel @ 2 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Crunch GP-1500.1

1500W RMS Class AB Ground Pounder Series Monoblock Car Amplifier with Bass Remote

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Crunch GP-1500.1

1500W RMS Class AB Ground Pounder Series Monoblock Car Amplifier with Bass Remote

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class A/B 2 ohm Stable Monoblock Amplifier

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Soundstream DPA1.2000D

2000W Peak (400W RMS) Class D Reserve Series Monoblock Car Amplifier with Bass Remote

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Soundstream DPA1.2000D

2000W Peak (400W RMS) Class D Reserve Series Monoblock Car Amplifier with Bass Remote

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

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DS18 ZR1500.1D

4500W Peak (1500W RMS) Class D ZR Series Monoblock Car Amplifier with Bass Remote

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DS18 ZR1500.1D

4500W Peak (1500W RMS) Class D ZR Series Monoblock Car Amplifier with Bass Remote

• 550 watts x 1 channel @ 4 ohm
• 950 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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DS18 SXE-2500.1D/RD

2500W Peak (800W RMS) Class D SXE Series Monoblock Car Amplifier with Bass Remote (Red)

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DS18 SXE-2500.1D/RD

2500W Peak (800W RMS) Class D SXE Series Monoblock Car Amplifier with Bass Remote (Red)

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

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Deaf Bonce Machete MLA-800

790W RMS Class D Machete Series Monoblock Car Amplifier

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Deaf Bonce Machete MLA-800

790W RMS Class D Machete Series Monoblock Car 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

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Kicker 43CXA12001 with Amplifier Wiring Kit

2400W Peak (1200W RMS) CX Series Monoblock Class D Subwoofer Car Amplifier Package

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Kicker 43CXA12001 with Amplifier Wiring Kit

2400W Peak (1200W RMS) CX Series Monoblock Class D Subwoofer Car Amplifier Package

• 1200 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 2400 Watts
• Preamp RCA outputs to daisy chain multiple amps
• Variable Low-Pass Crossover: 50 - 200Hz 12dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
• Dimensions: 7-3/16"W x 8-1/8"L x 2-3/8"H • Includes Amplifier Wiring Kit

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• 1200 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 2400 Watts
• Preamp RCA outputs to daisy chain multiple amps
• Variable Low-Pass Crossover: 50 - 200Hz 12dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
• Dimensions: 7-3/16"W x 8-1/8"L x 2-3/8"H • Includes Amplifier Wiring Kit

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Cerwin-Vega CVP2000.1D

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

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Cerwin-Vega CVP2000.1D

2000W Peak (400W RMS) Class AB CVP Series Monoblock Car 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

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MTX PS800.1

800W RMS Class D PS Series Monoblock Powersports Amplifier with Bass Remote

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MTX PS800.1

800W RMS Class D PS Series Monoblock Powersports Amplifier with Bass Remote

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

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

MTX MUD600-1

650W RMS Class D MUD Series Monoblock Marine and Powersports Amplifier

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MTX MUD600-1

650W RMS Class D MUD Series Monoblock Marine and Powersports Amplifier

• 300 watts x 1 channel @ 4 ohm
• 650 watts x 1 channel @ 2 ohm
• Total RMS Power: 650 watts
• Class D 2 ohm Stable Monoblock Amplifier

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• 300 watts x 1 channel @ 4 ohm
• 650 watts x 1 channel @ 2 ohm
• Total RMS Power: 650 watts
• Class D 2 ohm Stable Monoblock Amplifier

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DC Audio 7.5k

7500W Peak Class D Competition Series Monoblock Car Amplifier (with Bass Remote)

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DC Audio 7.5k

7500W Peak Class D Competition Series Monoblock Car Amplifier (with Bass Remote)

• 2000 watts x 1 channel @ 4 ohm
• 4400 watts x 1 channel @ 2 ohm
• Total RMS Power: 7500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XKIT02

NVX XKIT02

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Crunch GP-1500.1 Amplifier + Free Amp Wiring Kit

1500 Watts Ground Pounder Mono Subwoofer Car Amplifier

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Crunch GP-1500.1 Amplifier + Free Amp Wiring Kit

1500 Watts Ground Pounder Mono Subwoofer Car Amplifier

• Variable Electronic Crossover
• Bass Remote Included
• Subsonic Filter
• Switchable Bass Boost

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• Variable Electronic Crossover
• Bass Remote Included
• Subsonic Filter
• Switchable Bass Boost

AudioControl A1500.1

1500W RMS Class D Altitude Series Monoblock Car Amplifier with ParaBASS Control Knob

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AudioControl A1500.1

1500W RMS Class D Altitude Series Monoblock Car Amplifier with ParaBASS Control Knob

• 600 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1.33 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $449.00
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Earthquake Sound Mini D1000

1000W Peak (600W RMS) Class D MiNi Series Monoblock Car Amplifier

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Earthquake Sound Mini D1000

1000W Peak (600W RMS) Class D MiNi Series Monoblock Car Amplifier

• 180 watts x 1 channel @ 4 ohm
• 360 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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Massive Audio T2

1600W Peak (800W RMS) Class D Trident Series Monoblock Marine and Powersports Amplifier

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Massive Audio T2

1600W Peak (800W RMS) Class D Trident Series Monoblock Marine and Powersports Amplifier

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

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

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DS18 G3600.1D

3600W Peak (1200W RMS) Class D Gen-X Series Monoblock Car Amplifier with Bass Remote

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DS18 G3600.1D

3600W Peak (1200W RMS) Class D Gen-X Series Monoblock Car Amplifier with Bass Remote

• 500 watts x 1 channel @ 4 ohm
• 900 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

Save 30% on an NVX XKIT42 Amp Kit with Purchase!
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List price $323.95
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-15% $275.36

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NVX XAPK4 + XIV25 (XKIT42 Sub)

NVX XAPK4 + XIV25 (XKIT42 Sub)

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Wet Sounds HTM-1

1200W RMS Class D HTM Series Monoblock Marine Amplifier with LED Backlit Badge

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Wet Sounds HTM-1

1200W RMS Class D HTM Series Monoblock Marine Amplifier with LED Backlit Badge

• 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
• Class D 1 ohm Stable Monoblock Marine Amplifier

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$729.99

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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
• Class D 1 ohm Stable Monoblock Marine Amplifier

Limited time!

DS18 FRP-3.5K/TI

3500W RMS Class D FRP Series Monoblock Car Amplifier with Bass Remote (Titanium)

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DS18 FRP-3.5K/TI

3500W RMS Class D FRP Series Monoblock Car Amplifier with Bass Remote (Titanium)

• 1000 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 3500 watts x 1 channel @ 1 ohm
• Total RMS Power: 3500 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
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List price $503.99
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-29% $356.96

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NVX XKIT02

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Massive Audio P8

7000W Peak (3500W RMS) Class D Primo Series Monoblock Car Amplifier

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Massive Audio P8

7000W Peak (3500W RMS) Class D Primo Series Monoblock Car Amplifier

• 1000 watts x 1 channel @ 4 ohm
• 1400 watts x 1 channel @ 2 ohm
• 2300 watts x 1 channel @ 1 ohm
• Total RMS Power: 3500 watts
• Class D 0.5 ohm Stable Monoblock Amplifier

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    FAQ for Monoblock Sub Amplifiers in 2004 A6 Quattro

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 2004 Audi A6 Quattro?

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