Prodigy Audio NB5 Subwoofers

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Shop Prodigy Audio NB5 Series subwoofers at Audio Sellerz for powerful daily-driver bass, loud street systems and higher-output car audio builds. The NB5 lineup includes 8-inch, 10-inch, 12-inch and 15-inch subwoofers with RMS power handling from 800 to 1,200 watts and both dual 2-ohm and dual 4-ohm voice-coil options.

The NB5 Series is the higher-power subwoofer family in the current Prodigy Audio lineup. These woofers are designed for customers who need more motor strength, excursion and power capability than the NB2 daily-driver series while still having several practical sizes to choose from.

Browse the complete Prodigy Audio subwoofer lineup or visit the main Prodigy Audio collection to shop amplifiers, subwoofers and other Prodigy equipment.

Prodigy Audio NB5 Series Subwoofers

The NB5 lineup gives builders four subwoofer sizes and two voice-coil configurations, making it possible to plan the system around available space, enclosure size, amplifier power and final impedance.

• NB5-8D2 / NB5-8D4: 8-inch, 800 watts RMS, dual 2-ohm or dual 4-ohm
• NB5-10D2 / NB5-10D4: 10-inch, 1,000 watts RMS, dual 2-ohm or dual 4-ohm
• NB5-12D2 / NB5-12D4: 12-inch, 1,200 watts RMS, dual 2-ohm or dual 4-ohm
• NB5-15D2 / NB5-15D4: 15-inch, 1,200 watts RMS, dual 2-ohm or dual 4-ohm

Choosing between the models should start with the complete system. Consider how much room you have for the enclosure, how many subwoofers you plan to run, the final impedance you need and how much electrical support the amplifier will require.

Prodigy NB5-8 8-Inch Subwoofer – 800 Watts RMS

The Prodigy Audio NB5-8 packs serious power capability into the smallest diameter offered in the NB5 family. It is rated for 800 watts RMS and is available in both dual 2-ohm and dual 4-ohm configurations.

The 8-inch NB5 uses a 2.5-inch flat-aluminum voice coil, heavy cast-aluminum frame and a large ferrite motor system. Prodigy lists 17 mm of one-way linear excursion at 70% BL.

An 8-inch high-power subwoofer can make sense when you want substantial bass capability but cannot dedicate the space required for a larger 12-inch or 15-inch enclosure.

The NB5-8 can work well for:

• High-power compact systems
• Truck audio builds
• Custom center-console enclosures
• Small trunk installations
• Single 8-inch bass systems
• Multiple 8-inch subwoofer builds
• Customers who want a smaller woofer without dropping to entry-level power handling

The NB5-8 has a listed mounting depth of approximately 6 1/2 inches.

Compare more 8-inch car audio subwoofers if you are deciding between different power levels and enclosure requirements.

Prodigy NB5-10 10-Inch Subwoofer – 1,000 Watts RMS

The Prodigy Audio NB5-10 steps up to a 10-inch cone and 1,000 watts RMS while remaining available in both dual 2-ohm and dual 4-ohm configurations.

The NB5-10 uses a 2.75-inch flat-aluminum voice coil, a heavy cast-aluminum frame and a large ferrite motor assembly. Prodigy lists 27 mm of one-way linear excursion at 70% BL.

A high-power 10-inch subwoofer can be a strong choice when you want serious output but still need a more manageable enclosure than many 12-inch or 15-inch systems require.

The NB5-10 can fit:

• Strong daily-driver bass systems
• Single 10-inch high-power builds
• Dual 10-inch systems
• Truck enclosures
• Compact trunk builds
• Systems where box size still matters

The NB5-10 has a listed mounting depth of approximately 7 5/8 inches.

Browse more 10-inch car audio subwoofers to compare additional options.

Prodigy NB5-12 12-Inch Subwoofer – 1,200 Watts RMS

The Prodigy Audio NB5-12 is rated for 1,200 watts RMS and is available with dual 2-ohm or dual 4-ohm voice coils.

Twelve-inch subwoofers remain one of the most popular sizes for serious car audio because they provide a useful balance between cone area, enclosure size and output potential.

The NB5-12 uses the larger NB5 motor and suspension platform with a 2.75-inch flat-aluminum voice coil and 27 mm of listed one-way Xmax at 70% BL.

A single NB5 12 can make a strong daily system, while dual 12s can move considerably more air when the enclosure, amplifier and vehicle electrical system are designed around the additional demand.

The NB5-12 has a listed mounting depth of approximately 8 3/4 inches.

Compare other 12-inch car audio subwoofers when planning your build.

Prodigy NB5-15 15-Inch Subwoofer – 1,200 Watts RMS

The Prodigy Audio NB5-15 combines the NB5 Series motor and suspension design with the additional cone area of a 15-inch subwoofer.

It is rated for 1,200 watts RMS and is available in dual 2-ohm and dual 4-ohm configurations.

A 15-inch subwoofer can deliver a larger low-frequency presence when the vehicle has enough room for the enclosure the woofer actually requires.

The NB5-15 is especially useful for:

• High-power single-subwoofer builds
• Deep daily-driver bass systems
• Large trunk installations
• SUV and larger vehicle systems
• Dual 15-inch builds
• Louder street systems
• Systems where cone area and low-frequency output are priorities

The NB5-15 has a listed mounting depth of approximately 9 3/4 inches.

Browse our 15-inch car audio subwoofer collection to compare additional high-output options.

NB5 8 vs 10 vs 12 vs 15

There is no single NB5 size that is automatically best. The correct woofer depends on the space available and the bass system you are trying to build.

Choose the NB5 8-Inch If:

• You need the smallest NB5 diameter
• Vehicle space is limited
• You are building a compact high-power system
• 800 watts RMS fits your amplifier and power goals

Choose the NB5 10-Inch If:

• You want more cone area than an 8-inch
• You still want a manageable enclosure
• You want a 1,000-watt RMS subwoofer
• You are building a strong single or dual 10-inch system

Choose the NB5 12-Inch If:

• You want 1,200 watts RMS power handling
• You have room for a conventional 12-inch enclosure
• You want a strong balance of cone area and practicality
• You are planning a single or dual 12-inch system

Choose the NB5 15-Inch If:

• You want the largest NB5 cone area
• You have room for a larger enclosure
• You want strong low-frequency output
• You are building a high-power single or dual 15-inch system

High-Excursion NB5 Subwoofer Design

Excursion is the distance the cone and voice-coil assembly can move while remaining within the intended operating range of the motor.

Prodigy lists the NB5-8 at 17 mm of one-way linear Xmax at 70% BL. The NB5-10, NB5-12 and NB5-15 are listed at 27 mm one way.

More excursion gives the woofer additional displacement capability, but excursion alone does not determine how loud the completed system will be.

Total performance also depends on:

• Cone area
• Enclosure design
• Amplifier power
• Electrical voltage
• Voice-coil configuration
• Final impedance
• Vehicle acoustics
• System tuning

NB5 Motor & Voice-Coil Design

The NB5 Series uses a motor design developed for higher-power bass systems.

The 10-inch, 12-inch and 15-inch models use a 2.75-inch high-temperature flat-aluminum voice coil, while the 8-inch model uses a 2.5-inch flat-aluminum coil.

Prodigy also incorporates Faraday shorting rings into the motor design to help control inductance-related distortion as the cone moves through its operating range.

Additional NB5 construction features include:

• Vented motor structures
• Radial voice-coil gap cooling
• Heavy cast-aluminum frames
• High-temperature voice-coil wire
• Heavy-duty suspension components
• Stitched tinsel leads
• Treated paper cones
• Carbon-fiber dust caps on the larger NB5 models
• Heavy-duty foam surrounds
• Large push terminals for speaker-wire connections

Dual 2-Ohm vs Dual 4-Ohm NB5 Subwoofers

Every current NB5 size is available in both dual 2-ohm and dual 4-ohm configurations.

This is important because voice-coil impedance determines what final loads can be created for the amplifier.

One Dual 2-Ohm NB5

A single dual 2-ohm subwoofer can commonly be wired to:

• 1 ohm with the coils in parallel
• 4 ohms with the coils in series

One Dual 4-Ohm NB5

A single dual 4-ohm subwoofer can commonly be wired to:

• 2 ohms with the coils in parallel
• 8 ohms with the coils in series

When two or more NB5 subwoofers are used, the final wiring options change again.

Before ordering your subs and amplifier, use our subwoofer wiring diagrams and final ohm-load guide.

Choose the Voice Coil Before the Amplifier

One of the easiest ways to end up with mismatched equipment is to buy the amplifier and subwoofers separately without calculating the final impedance first.

Plan the system in this order:

1. Choose the number and size of subwoofers.
2. Determine the available D2 or D4 wiring configurations.
3. Choose the final impedance you want the amplifier to see.
4. Find an amplifier that produces the appropriate RMS power at that load.

This makes the entire system much easier to match correctly.

Match the NB5 With the Right Amplifier

Use the RMS rating of the exact NB5 model as the starting point:

• NB5 8-inch – 800 watts RMS
• NB5 10-inch – 1,000 watts RMS
• NB5 12-inch – 1,200 watts RMS
• NB5 15-inch – 1,200 watts RMS

If you are running multiple subwoofers, add their RMS requirements together and then compare the total with the amplifier's output at the final impedance.

Browse Prodigy Audio amplifiers if you want to keep the amplifier and subwoofers within the Prodigy lineup.

Single NB5 Subwoofer Systems

A single NB5 can deliver substantial bass without requiring the vehicle space of a multiple-subwoofer system.

A properly designed single-sub system can make sense for:

• Daily drivers
• Strong street systems
• Trucks
• Smaller trunks
• Customers trying to preserve some cargo space
• Systems where electrical demand needs to remain more manageable

Do not underestimate a well-designed single-subwoofer system. One properly powered woofer in the correct enclosure can outperform a poorly planned multi-sub setup.

Dual NB5 Subwoofer Systems

Using two matching NB5 subwoofers increases total cone area and displacement potential, but it also increases enclosure volume, amplifier demand and electrical requirements.

Before ordering a pair, confirm:

• The available box volume
• The final impedance created by both subwoofers
• The combined RMS power requirement
• The amplifier's output at that impedance
• The required power-wire size
• Battery reserve
• Alternator capability
• Available vehicle space

The Subwoofer Box Matters

A high-power subwoofer cannot perform correctly if the enclosure is wrong.

The box affects output, low-frequency extension, cone control and the amount of mechanical stress placed on the woofer.

Always design the enclosure around the exact NB5 model instead of choosing a box based only on whether the subwoofer fits the cutout.

Important enclosure factors include:

• Recommended net airspace
• Subwoofer displacement
• Mounting depth
• Magnet clearance
• Cone and surround clearance
• Sealed or ported design
• Port area
• Port tuning
• Number of subwoofers
• Vehicle space

Read our subwoofer box and enclosure guide before choosing a random prefab box for a high-power NB5 system.

Ported NB5 Subwoofer Systems

A properly designed ported enclosure is a popular choice for higher-output bass systems because it can increase efficiency and output around the intended tuning range.

Ported enclosures require careful attention to:

• Net internal airspace
• Port area
• Port length
• Tuning frequency
• Subwoofer displacement
• Power level

An undersized port or incorrectly tuned box can limit performance and place unnecessary stress on the subwoofer.

NB2 vs NB3 vs NB5

Prodigy Audio offers multiple subwoofer families because different systems have different requirements.

• NB2 Series: practical moderate-power daily-driver subwoofers.
• NB3 Series: shallow-mount subwoofers for trucks and limited-depth installations.
• NB5 Series: higher-power subwoofers for stronger daily and higher-output bass systems.

If mounting depth is the main limitation, the NB3 may make more sense. If the goal is an affordable moderate-power bass upgrade, NB2 may be enough. If you want the stronger motor, higher RMS capability and excursion of the higher-power lineup, NB5 is the direction to look.

Compare all three families in the Prodigy Audio subwoofer collection.

Power & Ground Wire for an NB5 System

As subwoofer and amplifier power increase, wiring becomes increasingly important.

A high-power amplifier cannot perform properly through undersized power cable or a weak ground connection.

A complete NB5 installation may require:

• Properly sized power wire
• Matching ground-wire capacity
• A secure amplifier ground
• Heavy speaker wire
• Correct battery-side fuse protection
• Distribution blocks when running multiple amplifiers

Shop car audio amplifier wiring kits for complete installation options.

Higher-Power NB5 Systems & Electrical Upgrades

The subwoofer itself does not determine whether you need upgraded electrical support—the amplifier and total current demand do.

However, a system powering one or more 800-to-1,200-watt RMS NB5 subwoofers can place considerably more demand on the vehicle than a basic entry-level bass system.

Depending on the complete build, electrical upgrades may include:

• Larger power and ground wiring
• Improved chassis and battery grounds
• A Big 3 wiring upgrade
• Additional battery capacity
• Improved fuse and power distribution
• A high-output alternator when factory charging capacity becomes insufficient

Plan the electrical system around the actual amplifier demand instead of assuming the factory charging system can support any amplifier you install.

Plan the Complete Bass System First

A complete NB5 bass build may include:

• One or more Prodigy NB5 subwoofers
• A properly matched monoblock amplifier
• A correctly designed enclosure
• Power and ground wire sized for the amplifier
• Heavy speaker wire
• Proper fuse protection
• A dependable amplifier ground
• Correct D2 or D4 voice-coil selection
• The correct final impedance
• Battery and charging support when required
• Proper amplifier gain and crossover settings

Our complete car audio bass setup guide explains how the subwoofer, amplifier, enclosure, wiring and electrical system work together.

Prodigy Audio NB5 FAQ

What sizes are available in the Prodigy NB5 Series?

The current Prodigy Audio NB5 lineup includes 8-inch, 10-inch, 12-inch and 15-inch subwoofers.

How much power does the Prodigy NB5 8 handle?

The NB5 8-inch subwoofer is rated at 800 watts RMS.

How much power does the Prodigy NB5 10 handle?

The NB5 10-inch subwoofer is rated at 1,000 watts RMS.

How much power does the Prodigy NB5 12 handle?

The NB5 12-inch subwoofer is rated at 1,200 watts RMS.

How much power does the Prodigy NB5 15 handle?

The NB5 15-inch subwoofer is rated at 1,200 watts RMS.

Does the Prodigy NB5 come in dual 2 ohm?

Yes. Current NB5 models are available in dual 2-ohm configurations.

Does the Prodigy NB5 come in dual 4 ohm?

Yes. Current NB5 models are also available in dual 4-ohm configurations.

Should I buy D2 or D4?

Choose the voice-coil configuration based on the number of subwoofers and the final impedance you want the amplifier to see. Calculate the complete wiring configuration before ordering.

What amplifier do I need for an NB5?

Choose the amplifier based on the RMS rating of the exact NB5 model, number of subwoofers and final wired impedance. Compare amplifier RMS output at that load with the combined RMS requirements of the subwoofers.

Can I run two Prodigy NB5 subwoofers?

Yes. Two matching NB5 subwoofers can be used together when the enclosure has sufficient airspace, the final impedance works with the amplifier and the electrical system can support the amplifier demand.

Which NB5 size is best?

The best size depends on available enclosure space and the goal of the system. The 8-inch is the most compact, the 10-inch offers a balance of size and power, the 12-inch is a popular high-power daily choice and the 15-inch provides the most cone area in the current NB5 lineup.

Is the Prodigy NB5 good for daily use?

Yes. An NB5 can be used in a daily-driver system when it is installed in the correct enclosure, powered appropriately and tuned correctly. Higher power does not mean the system has to be played at maximum output all the time.

Does an NB5 system need an upgraded alternator?

Not automatically. Alternator requirements depend on total amplifier current demand, factory charging-system capacity, battery reserve and how the system is used. Larger multiple-subwoofer systems are more likely to require additional electrical support.

Why Buy Prodigy Audio NB5 Subwoofers from Audio Sellerz?

Audio Sellerz works with real car audio systems ranging from daily-driver bass upgrades to custom enclosures, high-power amplifiers and serious electrical builds.

We understand that buying a powerful subwoofer is only one part of creating a system that actually performs. The enclosure, amplifier, voice-coil configuration, final impedance, wiring and electrical system all need to match the woofer.

Browse the NB5 subwoofers above or compare the complete Prodigy Audio subwoofer lineup to find the right series for your build.

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