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NVX Audio Upgrade Kit – QBSTA & Two Pair 6.5" Speakers

900W Max (300W RMS) 11" Powered Spare Tire Subwoofer Box w/ Remote Bass Knob, Two Pair 6.5" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

QBSTA_65_X2_STG1VKIT big
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900W Max (300W RMS) 11" Powered Spare Tire Subwoofer Box w/ Remote Bass Knob, Two Pair 6.5" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

• 11" Spare Tire Subwoofer System
• Built-In Class D Amplifier
• Top-mount amplifier controls
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 Co-axial Speaker and Damping Kits

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Universal Icon Universal – fits most vehicles.

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260
List price $581.43
-32% $396.93

In stock

• 11" Spare Tire Subwoofer System
• Built-In Class D Amplifier
• Top-mount amplifier controls
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 Co-axial Speaker and Damping Kits

NVX Audio Upgrade Kit – NPKG212 Bass Package with 2 Pair 6x9" Speakers

Includes Loaded Dual 12" Slot Ported Box, Monoblock Amp w/ Remote, 2 Pair 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

NPKG212_69_X2_STG1VKIT big
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Includes Loaded Dual 12" Slot Ported Box, Monoblock Amp w/ Remote, 2 Pair 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

• 12" Loaded Dual Subwoofer Enclosure with Amplifier
• 500 watts RMS
• Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6x9(2) Co-axial Speaker and Damping Kits

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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247
List price $687.43
-28% $495.93

In stock

• 12" Loaded Dual Subwoofer Enclosure with Amplifier
• 500 watts RMS
• Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6x9(2) Co-axial Speaker and Damping Kits

NVX Audio Upgrade Kit – NPKG212 Bass Package with 2 Pair 6.5" Speakers

Includes Loaded Dual 12" Slot Ported Box, Monoblock Amp w/ Remote, 2 Pair 6.5 Coaxial Speakers, Amp Kit, Sound Damping, and Roller

NPKG212_65_X2_STG1VKIT big
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Includes Loaded Dual 12" Slot Ported Box, Monoblock Amp w/ Remote, 2 Pair 6.5 Coaxial Speakers, Amp Kit, Sound Damping, and Roller

• 12" Loaded Dual Subwoofer Enclosure with Amplifier
• 500 watts RMS
• Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 Co-axial Speaker and Damping Kits

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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255
List price $677.43
-28% $486.93

In stock

• 12" Loaded Dual Subwoofer Enclosure with Amplifier
• 500 watts RMS
• Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 Co-axial Speaker and Damping Kits

Lowest price in 30 days

NVX Audio Upgrade Kit – QB12SPA with 6.5" & 6x9" Speakers

1200W MAX (350W RMS) Single 12" Amplified Ported Sub Enclosure w/ Remote Bass Knob, 6.5" & 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

QB12SPA_65_69_STG1VKIT big
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1200W MAX (350W RMS) Single 12" Amplified Ported Sub Enclosure w/ Remote Bass Knob, 6.5" & 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

• 12" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 and 6x9 Co-axial Speaker and Damping Kits

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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249
List price $562.42
-41% $333.93

In stock

• 12" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 and 6x9 Co-axial Speaker and Damping Kits

Lowest price in 30 days

NVX Audio Upgrade Kit – QB12SPA with 2 Pair 6.5" Speakers

1200W MAX (350W RMS) Single 12" Amplified Ported Sub Enclosure w/ Remote Bass Knob, 2 Pair 6.5" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

QB12SPA_65_X2_STG1VKIT big
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1200W MAX (350W RMS) Single 12" Amplified Ported Sub Enclosure w/ Remote Bass Knob, 2 Pair 6.5" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

• 12" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5(2) Co-axial Speaker and Damping Kits

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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244
List price $557.42
-41% $329.43

In stock

• 12" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5(2) Co-axial Speaker and Damping Kits

NVX Audio Upgrade Kit – QBSTA & Two Pair 6x9" Speakers

900W Max (300W RMS) 11" Powered Spare Tire Subwoofer Box w/ Remote Bass Knob, Two Pair 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

QBSTA_69_X2_STG1VKIT big
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900W Max (300W RMS) 11" Powered Spare Tire Subwoofer Box w/ Remote Bass Knob, Two Pair 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

• 11" Spare Tire Subwoofer System
• Built-In Class D Amplifier
• Top-mount amplifier controls
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6x9(2) Co-axial Speaker and Damping Kits

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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252
List price $591.43
-31% $405.93

In stock

• 11" Spare Tire Subwoofer System
• Built-In Class D Amplifier
• Top-mount amplifier controls
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6x9(2) Co-axial Speaker and Damping Kits

Lowest price in 30 days

NVX Audio Upgrade Kit – QB10SPA with 6x9" & 6.5" Speakers

1200W MAX (350W RMS) Single 10" Amplified Ported Sub Enclosure w/ Slot Ported Box, Remote, 6.5" & 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

QB10SPA_65_69_STG1VKIT big
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1200W MAX (350W RMS) Single 10" Amplified Ported Sub Enclosure w/ Slot Ported Box, Remote, 6.5" & 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

• 10" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 and 6x9 Co-axial Speaker and Damping Kits

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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249
List price $538.42
-41% $315.93

In stock

• 10" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 and 6x9 Co-axial Speaker and Damping Kits

Lowest price in 30 days

NVX Audio Upgrade Kit – QB12SPA with 2 Pair 6x9" Speakers

1200W MAX (350W RMS) Single 12" Amplified Ported Sub Enclosure w/ Remote Bass Knob, 2 Pair 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

QB12SPA_69_X2_STG1VKIT big
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1200W MAX (350W RMS) Single 12" Amplified Ported Sub Enclosure w/ Remote Bass Knob, 2 Pair 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

• 12" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6x9(2) Co-axial Speaker and Damping Kits

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

236
List price $567.42
-40% $338.43

In stock

• 12" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6x9(2) Co-axial Speaker and Damping Kits

NVX Audio Upgrade Kit – QBSTA with 6.5" & 6x9" Speakers

900W Max (300W RMS) 11" Powered Spare Tire Subwoofer Box w/ Remote Bass Knob, 6.5" and 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

QBSTA_65_69_STG1VKIT big
Go to item page Right Arrow Icon of Right Arrow

900W Max (300W RMS) 11" Powered Spare Tire Subwoofer Box w/ Remote Bass Knob, 6.5" and 6x9" Coaxial Speakers, Amp Kit, Sound Damping, and Roller

• 11" Spare Tire Subwoofer System
• Built-In Class D Amplifier
• Top-mount amplifier controls
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 and 6x9 Co-axial Speaker and Damping Kits

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

265
List price $586.43
-32% $396.43

In stock

• 11" Spare Tire Subwoofer System
• Built-In Class D Amplifier
• Top-mount amplifier controls
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6.5 and 6x9 Co-axial Speaker and Damping Kits

Lowest price in 30 days

NVX Audio Upgrade Kit – QB10SPA with 2 Pair 6x9" Speakers

1200W MAX (350W RMS) Single 10" Amplified Ported Sub Enclosure w/ Remote Bass Knob, 6x9" Coaxial Speakers (x2), Amp Kit, Sound Damping, and Roller

QB10SPA_69_X2_STG1VKIT big
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1200W MAX (350W RMS) Single 10" Amplified Ported Sub Enclosure w/ Remote Bass Knob, 6x9" Coaxial Speakers (x2), Amp Kit, Sound Damping, and Roller

• 10" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6x9(2) Co-axial Speaker and Damping Kits

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

236
List price $543.42
-41% $320.43

In stock

• 10" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Includes 6x9(2) Co-axial Speaker and Damping Kits

    Clear all

    All About Car Amplifier Packages & Bundles


    Amplifier Packages and Bundles Information

    Driving while listening to a superior audio system is one of life's great joys. No matter what type of car you have, upgrading the factory stereo with aftermarket stereo and speaker equipment will have you rocking in your seat and enjoying the drive, not just surviving.

    Most car manufacturers come with stock sound systems that lack power and quality. The most common way people upgrade their car stereos is by installing a new head unit.  This is the in-dash component that allows you to control everything from CDs, AM/FM radio, communication and sometimes vehicle climate control. 

    Amplifiers and subwoofers are necessary to increase the power of the audio system and maintain music fidelity. The amplifier that comes in most head units cannot power upgraded speakers. To get these features while keeping enough energy flowing to the speakers, an amplifier will be needed to ensure each component is getting enough power. Especially if you want to add an aftermarket subwoofer or any specialized speaker. 

     A set of subs increases the base output. Most people associate these with loud music that rattles the bumper – which subwoofers are more than capable of generating. Even so, subs were created to make low frequency sounds that mid-range and factory speakers can’t. You can crank up the bass for a chest thumping experience, or to bring new depth to any musical genre. 

    Replacing the main speakers with excellent tweeters provides the same boost in power and quality for high frequencies.

    Coordinating all the different components necessary to upgrade your car stereo can be tedious. This category is dedicated to packages Sonic Electronix has created to match your desired amplifier and subwoofer, subwoofer and its enclosure, head units and backup cameras, and so on. There are also premium car audio kits that come with a new stereo, subwoofer and speaker box, front speakers, amp, and all the necessary wiring. 

    Sonic Electronix Learning Center: Quick Guide to Car Audio.

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    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.