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2004 Cadillac SRX

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Universal gear includes car amplifiers, subs, and other products that do not install in a specific location or require fitment to integrate with a vehicle.

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

Universal-Fit Audio for 2004 Cadillac SRX

When thinking of universal gear, we consider products like a car amp that gives more power to your speakers or subs, cell phone chargers, equalizers and sound processors, rear-seat entertainment and video monitors, as well as dash cameras.

Better sound with your factory radio

Better sound with a factory radio

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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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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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JL Audio XDM200/2

200W RMS Class D XDM Series 2 Channel Car and Marine Amplifier

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JL Audio XDM200/2

200W RMS Class D XDM Series 2 Channel Car and Marine Amplifier

• 75 watts x 2 channel @ 4 ohm
• 100 watts x 2 channel @ 2 ohm
• Bridged: 200 watts x 1 channel @ 4 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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JBL Marine A5055 (JBLMA5055AM)

800W RMS Class AB/D Marine Series 5-Channel Marine Amplifier with Remote Bass Knob

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JBL Marine A5055 (JBLMA5055AM)

800W RMS Class AB/D Marine Series 5-Channel Marine Amplifier with Remote Bass Knob

• 50 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 75 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 800 watts
• Class AB / D 2 ohm Stable 5-Channel-Channel Amplifier

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• 50 watts x 4 channel + 300 watts x 1 channel @ 4 ohm
• 75 watts x 4 channel + 500 watts x 1 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 800 watts
• Class AB / D 2 ohm Stable 5-Channel-Channel Amplifier

AudioControl EPIC750

750W RMS Class D Epic Series Monoblock Car Amplifier with Bass Remote

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AudioControl EPIC750

750W RMS Class D Epic Series Monoblock Car Amplifier with Bass Remote

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 750 watts x 1 channel @ 1 ohm
• Bridged (Strapped): 1500 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 750 watts x 1 channel @ 1 ohm
• Bridged (Strapped): 1500 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 1 ohm Stable Monoblock Amplifier

Hertz SP 1.900

1000W RMS Class D SPL Show Series Monoblock Car, Motorcycle, Marine, and Powersports Amplifier

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Hertz SP 1.900

1000W RMS Class D SPL Show Series Monoblock Car, Motorcycle, Marine, and Powersports Amplifier

• 600 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 D 1 ohm Stable Monoblock Amplifier

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List price $625.00
-12% $549.99

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Hifonics Brutus BRL2000.1

2000W RMS Class D Brutus BRL Series Monoblock Car Amplifier with Bass Remote

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Hifonics Brutus BRL2000.1

2000W RMS Class D Brutus BRL Series Monoblock Car Amplifier with Bass Remote

• 700 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XKIT02

$179.99

$125.99

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Cerwin-Vega CVP800.2D

800W Peak (170W RMS) Class AB CVP Series 2-Channel Car Amplifier

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Cerwin-Vega CVP800.2D

800W Peak (170W RMS) Class AB CVP Series 2-Channel Car Amplifier

• 60 watts x 2 channel @ 4 ohm
• 85 watts x 2 channel @ 2 ohm
• Bridged: 180 watts x 1 channel @ 4 ohm
• Total RMS Power: 170 watts
• Class A/B 2 ohm Stable 2-Channel Amplifier

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JBL Stage GT 50011 (JBLSTAGEGT50011AM)

1220W Peak (500W RMS) Class D Stage GT Series Monoblock Car Amplifier with Bass Remote

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JBL Stage GT 50011 (JBLSTAGEGT50011AM)

1220W Peak (500W RMS) Class D Stage GT Series Monoblock Car Amplifier with Bass Remote

• 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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Hifonics Brutus BRL800.4

800W RMS Class D Brutus BRL Series 4-Channel Car Amplifier

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Hifonics Brutus BRL800.4

800W RMS Class D Brutus BRL Series 4-Channel Car Amplifier

• 125 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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JL Audio VX600/1i

600W RMS Class D VXi Series Monoblock Car Amplifier with Built-in DSP

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JL Audio VX600/1i

600W RMS Class D VXi Series Monoblock Car Amplifier with Built-in DSP

• 400 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 integrated DSP

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Kicker KXMA400.2 (48KXMA4002)

500W Peak (400W RMS) Class D KXM Series 2-Channel Marine Amplifier

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Kicker KXMA400.2 (48KXMA4002)

500W Peak (400W RMS) Class D KXM Series 2-Channel Marine Amplifier

• 100 watts x 2 channel @ 4 ohm
• 200 watts x 2 channel @ 2 ohm
• Bridged: 400 watts x 1 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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List price $409.99
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-26% $303.96

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AudioControl ACX-650.5

650W RMS Class D ACX Series 5-Channel Marine and Powersports Amplifier

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AudioControl ACX-650.5

650W RMS Class D ACX Series 5-Channel Marine and Powersports Amplifier

• 50 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 75 watts x 4 channel + 350 watts x 1 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 650 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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List price $739.00
-26% $549.00

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Sundown Audio SAEv4-900.5

2100W RMS Class AB/D SAE Series 5-Channel Car Amplifier (SAEv.4-900.5)

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Sundown Audio SAEv4-900.5

2100W RMS Class AB/D SAE Series 5-Channel Car Amplifier (SAEv.4-900.5)

• 80 watts x 4 channel + 225 watts x 1 channel @ 4 ohm
• 120 watts x 4 channel + 325 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2100 watts
• Class AB / D 1 ohm Stable 5-Channel Amplifier

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List price $551.99
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NVX XKIT06

NVX XKIT06

$184.99

$129.49

$55.50 Savings!

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• 80 watts x 4 channel + 225 watts x 1 channel @ 4 ohm
• 120 watts x 4 channel + 325 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2100 watts
• Class AB / D 1 ohm Stable 5-Channel Amplifier

Limited time!

Kicker LX850.1 (51LX8501)

1100W Peak (850W RMS) Class D LX-Series Monoblock Car Amplifier with Bass Remote

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Kicker LX850.1 (51LX8501)

1100W Peak (850W RMS) Class D LX-Series Monoblock Car Amplifier with Bass Remote

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

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NVX XKIT02

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Hifonics BG-1400.1

1400W RMS Class D Brutus BG Series Monoblock Car Amplifier with Bass Remote

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Hifonics BG-1400.1

1400W RMS Class D Brutus BG Series Monoblock Car Amplifier with Bass Remote

• 750 watts x 1 channel @ 4 ohm
• 1100 watts x 1 channel @ 2 ohm
• 1400 watts x 1 channel @ 1 ohm
• Total RMS Power: 1400 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Diamond Audio MICRO2V2

500W RMS Class D MicroV2 Series Compact 2-Channel Amplifier with Bluetooth

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Diamond Audio MICRO2V2

500W RMS Class D MicroV2 Series Compact 2-Channel Amplifier with Bluetooth

• 150 watts x 2 channel @ 4 ohm
• 250 watts x 2 channel @ 2 ohm
• Bridged: 500 watts x 1 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

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Limited time!

Crunch GP-1000.4

1000W Peak Class AB GP Series 4-Channel Full Range Car Amplifier

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Crunch GP-1000.4

1000W Peak Class AB GP Series 4-Channel Full Range Car Amplifier

• 125 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total Peak Power: 1000 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Save 30% off an NVX XKIT44 Amp Kit at Checkout!
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NVX XKIT44

NVX XKIT44

$119.99

$83.99

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Rockford Fosgate M5-800X4

400W RMS M5-Series Class-AD 4-channel Marine Amplifier

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Rockford Fosgate M5-800X4

400W RMS M5-Series Class-AD 4-channel Marine Amplifier

• 100 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class AD 2 ohm Stable 4-Channel Amplifier

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JL Audio XDM700/5

700W RMS Class D XDM Series 5 Channel Car and Marine Amplifier

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JL Audio XDM700/5

700W RMS Class D XDM Series 5 Channel Car and Marine Amplifier

• 75 watts x 4 channel + 180 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 300 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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Used from: $790.49
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Hertz SP 4.500

600W RMS Class D SPL Show Series 4-Channel Compact Full Range Car Amplifier

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Hertz SP 4.500

600W RMS Class D SPL Show Series 4-Channel Compact Full Range Car Amplifier

• 90 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Save 30% off an NVX XKIT84 Amp Kit at Checkout!
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NVX XKIT84

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$55.99

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Massive Audio PX4

600W RMS Class D Primo Series 4 Channel Car Amplifier

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Massive Audio PX4

600W RMS Class D Primo Series 4 Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

2+ offers available
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List price $414.99
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    FAQ for Universal-Fit Audio & Electronics in 2004 SRX

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2004 Cadillac SRX?

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