SQ drivers, SPL output, shallow-mount fits.
Why Buy From Audio Intensity
CNC-Matched Enclosures
Spec-built to your driver's Thiele-Small parameters
Advanced Support
Real techs answer your install questions
Includes Shipping
Shipping included from our Tennessee location
FIND YOUR FIT
Tell us what you drive, how much room you have, and what you want. We will point you to the right size and enclosure, then confirm it for free.
Decision Shortcut
Curated picks matched to common build goals
Best Subwoofer for SQ
Image Dynamics
The SQL benchmark. Reference-grade accuracy and linearity for sound-quality-focused builds.
$ 469.99
View DetailsBest Subwoofer Value
Prodigy
Strong motor in the right enclosure. The mid-tier choice that performs above its price point.
$ 171.99 $ 195.99
View DetailsBest Compact Subwoofer
Wavtech
750W RMS in 2.9 inch mounting depth. The shallow-mount benchmark for tight installs.
$ 749.99
View DetailsBest Subwoofer for Output
Prodigy
Competition-grade motor with sustained high-power operation. Built for daily and competition use.
$ 434.99 $ 520.99
View Details
SHOP BY SIZE
SHOP BY TYPE
COMPARE BY TIER
Entry and daily-upgrade drivers. A real step up from factory bass without a big-system budget.
| Model | Size | RMS | Xmax | Fs | Sealed / Ported (ft³) | Price |
|---|---|---|---|---|---|---|
| Prodigy NB2-8 | 8" | 300W | 14mm | 37.3Hz | design guide | $108.99 |
| Prodigy NB2-10 | 10" | 350W | 14mm | 34.3Hz | 0.65 / 1.0 | $138.99 |
| Prodigy NB2-12 | 12" | 400W | 14mm | 28.4Hz | design guide | $150.99 |
| Image Dynamics ID8 V4 | 8" | 150W | 12.5mm | 31Hz | 0.2-0.45 / 0.5-0.9 | $99.99 |
| Image Dynamics ID10 V4 | 10" | 250W | 13.95mm | 32Hz | 0.4-0.8 / 1.14-1.62 | $139.99 |
| Image Dynamics ID12 V4 | 12" | 250W | 13.95mm | 45Hz | 0.8-1.5 / 1.5-2.0 | $159.99 |
| Arc Audio X2V2 10 | 10" | 200W | 14.8mm | 26Hz | 0.65-1.0 / 1.3-1.7 | $209.00 |
| Arc Audio X2V2 12 | 12" | 250W | 15.1mm | 25.5Hz | 1.0-1.5 / 1.5-2.0 | $229.00 |
| Audiomobile GT2 2010 | 10" | 400W | 11.9mm | — | vented 1.0-1.5 | $249.95 |
Prodigy NB2-8 and NB2-12 ported use Prodigy design guides. GT2 is vented-optimized.
SQ daily builds and higher-output drivers with stronger motors and more excursion.
| Model | Size | RMS | Xmax | Fs | Sealed / Ported (ft³) | Price |
|---|---|---|---|---|---|---|
| Image Dynamics IDQ8 V4 | 8" | 250W | 14.5mm | 45Hz | 0.33-0.73 / 0.5-1.0 | $193.99 |
| Image Dynamics IDQ10 V4 | 10" | 500W | 14.5mm | 42Hz | 0.5-1.0 / 1.0-1.75 | $238.99 |
| Image Dynamics IDQ12 V4 | 12" | 500W | 14.5mm | 35Hz | 0.75-1.5 / 1.0-2.0 | $280.99 |
| Arc Audio Arc Series 10 | 10" | 250W | 15mm | 23.8Hz | 0.65-0.85 / 0.75-1.6 | $298.00 |
| Arc Audio Arc Series 12 | 12" | 350W | 16mm | 22.8Hz | 0.9-1.25 / 1.3-2.25 | $338.00 |
| Arc Audio A10 | 10" | 250W | 8mm | 27Hz | 0.65-1.1 / sealed only | $329.00 |
| Arc Audio A12 | 12" | 300W | 8mm | 25Hz | 0.85-1.25 / sealed only | $349.00 |
| Audiomobile EVO 2410 | 10" | 600W | 15.8mm | 28.7Hz | 0.5-0.65 / 0.65-1.0 | $449.95 |
| Audiomobile GTS 2112 | 12" | 500W | 14.2mm | 25Hz | 0.75-1.25 / 1.25-1.5 | $425.00 |
| Prodigy NB3-10 | 10" | 600W | 11mm | 36.4Hz | 0.75-1.0 / design guide | $148.99 |
| Prodigy NB3-12 | 12" | 800W | 11mm | 36.2Hz | 1.0-1.2 / design guide | $171.99 |
Arc A-series is sealed-optimized. Prodigy NB3 ported uses a Prodigy design guide.
Reference and competition drivers. Klippel-tested motors, deep excursion, shallow-mount flagships.
| Model | Size | RMS | Xmax | Fs | Sealed / Ported (ft³) | Price |
|---|---|---|---|---|---|---|
| Image Dynamics IDMAX10 V4 | 10" | 500W | 19mm | 28Hz | 0.5-1.25 / 1.0-2.0 | $429.99 |
| Image Dynamics IDMAX12 V4 | 12" | 500W | 19mm | 26Hz | 0.65-1.8 / 1.25-2.25 | $469.99 |
| Image Dynamics IDMAX15 V4 | 15" | 600W | 22mm | 30Hz | 1.5-3.0 / 2.0-4.0 | $679.99 |
| Audiomobile Encore 4412 | 12" | 1000W | 19.1mm | 32Hz | 0.7-1.25 / 1.25-2.0 | $799.95 |
| Audiomobile Encore 4415 | 15" | 1000W | 19.1mm | 32Hz | 1.25-1.8 / 1.8-2.7 | $899.95 |
| Wavtech thinPRO10 | 10" shallow | 750W | 20mm | 31Hz | 0.35 / 0.6 | $749.99 |
| Wavtech thinPRO12 | 12" shallow | 750W | 20mm | 26Hz | 0.6 / 1.0 | $899.99 |
| Crescendo Revolution 10 | 10" | 300W | — | 29Hz | 0.5-0.6 / not rec | $999.99 |
| Prodigy NB5-10 | 10" | 1000W | 27mm | 37.4Hz | design guide | $328.99 |
| Prodigy NB5-12 | 12" | 1200W | 27mm | 35.8Hz | design guide | $406.99 |
| Prodigy NB5-15 | 15" | 1200W | 27mm | 35.6Hz | design guide | $434.99 |
| Arc Audio SW10 | 10" shallow | 350W | 14.7mm | 39Hz | 0.6 / sealed only | $589.99 |
| Arc Audio SW12 | 12" shallow | 400W | 15.5mm | 33Hz | 0.8 / sealed only | $629.99 |
Shallow-mount and Arc SW drivers are sealed-optimized. Prodigy NB5 ported uses a Prodigy design guide.
SIZE GUIDE
Size is the most consequential choice you make, and it is driven by the space your vehicle can hold first, your output goal second. A bigger cone moves more air for higher output and deeper extension, but only when the enclosure is sized to support it. Measure the space you have, then pick the largest driver that fits its correct box. A properly sized 10 in the right enclosure beats an oversized 12 crammed into too little air every time.
The pick for the tightest installs: underseat and behind-seat trucks, powersports, motorcycles, and small sedan trunks. An 8 gives fast, articulate low end that blends cleanly with your door speakers, trading ultimate output for speed and placement flexibility. Browse the 8 inch subwoofers.
The best balance of output and box size for most car audio buyers. A 10 has enough cone area for usable bass into the low 30Hz range while staying compact enough for most sedan trunks and behind-seat truck installs. If you are unsure where to start, start here. Browse the 10 inch subwoofers.
The most popular size for a serious bass build. A 12 delivers strong output at any listening volume with enclosure requirements that still fit most vehicles. It is the default choice when you want real impact without moving to a dedicated SPL setup. Browse the 12 inch subwoofers.
Maximum cone area and the deepest extension, for buyers who specifically chose 15 over 12 because they need the SPL a smaller driver cannot deliver. A 15 rewards real airspace and amplifier power, and suits trucks and SUVs built around bass. Browse the 15 inch subwoofers.
Quick Reference: Size at a Glance
Still deciding? Use the Find Your Fit tool above to match a size to your vehicle, or read our deeper guides to the best 12 inch subwoofers and the best 10 inch subwoofers for SQ.
TYPE GUIDE
Beyond size, subwoofers come in a few build types. Which one is right depends on how much of the system you want to assemble yourself, and how much space and power your vehicle gives you.
The subwoofers in this collection. You choose the driver, then pair it with the correct enclosure and amplifier. This path gives the most flexibility and the best performance per dollar, because every piece is matched to your goal rather than compromised into a one-size box. It is the right choice when you want control over the final result. Pair a driver with a matched enclosure and a monoblock amplifier.
A driver already installed in a matched enclosure, which removes the box math entirely. Add an amplifier and you have bass. Choose a sealed box for tight, accurate low end, or a ported box for more output from the same driver.
Purpose-built for installs where a standard-depth sub will not physically clear: behind-seat and under-seat truck spaces, tight doors, and shallow cargo areas. A shallow-mount driver keeps the mounting depth low while still moving real air. Browse the shallow-mount subwoofers.
All-in-one units with the amplifier built in. This is the simplest path to added bass, ideal for compact vehicles and clean installs where space, wiring, and electrical headroom are limited. Browse the powered subwoofers.
Which Type Fits Your Goal
Going the component route is where Audio Intensity has an advantage no other retailer offers: every driver in this collection can be paired with a Proline X enclosure cut to its exact Thiele-Small parameters, covered in the next section.
SPEC-MATCHED ENCLOSURES
Every subwoofer in this collection can be paired with an enclosure built specifically for it, and no other retailer carrying these brands offers that. Not a generic box that approximates the right dimensions, but a CNC-manufactured enclosure calculated from the driver's measured Thiele-Small parameters and cut to those specs on a ShopSabre router in Tullahoma, Tennessee, to 0.005 inch tolerance.
The enclosure is half the system. A correctly matched box is the difference between a subwoofer that performs the way it was engineered to and one that only approximates it. That is the entire reason Proline X exists.
Internal volume, port tuning, and baffle dimensions calculated from each driver's actual T-S parameters.
Machined on a ShopSabre CNC router to 0.005 inch tolerance for a repeatable, airtight build.
Dense 48.5 lb/ft³ MDF with an ABS and carbon-fiber terminal cup, pre-wired with OFC.
Designed, cut, and shipped from our own Tennessee shop, not drop-shipped.
Driver-matched enclosures are available across the Proline X Performance, Professional, and Micro series, plus vehicle-specific direct-fit boxes for trucks and SUVs. Loaded systems pair the driver with its matched enclosure, pre-installed and pre-wired. Browse the full enclosure lineup.
Buying a driver from this collection and want to know whether a matched Proline X enclosure is available for it? Check the individual product page or send us your driver and vehicle and we will confirm the right box before you order.
Verified Reviews
Real feedback from real installs. These are verified Yotpo reviews from Audio Intensity customers, not staged testimonials.
FAQ
Size selection is driven by available enclosure volume first and your output goal second. An 8 inch fits behind-seat trucks and tight installs, a 10 inch is the practical sweet spot for most sedans and trucks, a 12 inch is the most popular size for serious bass with room to spare, and a 15 inch delivers maximum output for SPL builds with real airspace. Match the driver to the size your install location can actually hold.
For sound quality, look for a driver with strong motor control and low distortion at high excursion, paired with a sealed enclosure. Image Dynamics is the SQ benchmark, and Arc Audio and Audiomobile cover SQ-focused builds with tight cone control. The best result comes from matching an accurate driver to a correctly sized box rather than chasing raw size or wattage.
A sealed box plays tighter, more accurate bass and is the choice for sound-quality builds and smaller spaces. A ported box plays louder and deeper from the same driver and suits output and SPL builds, but it needs more airspace. The driver's parameters determine which enclosure type extracts its best performance, which is why a spec-matched box matters.
Match the amplifier's RMS output at your final wired impedance to the subwoofer's RMS rating. The standard approach is a monoblock amplifier set to the driver's RMS at the wired impedance. Do not underpower the driver, because underpowering and clipping is the most common cause of voice coil failure.
A shallow-mount subwoofer is engineered for a low mounting depth so it clears tight spaces where a standard sub will not fit, such as behind-seat and under-seat truck locations. It keeps the depth minimal while still moving real air, making it the right choice for trucks, powersports, and stealth installs.
Audio Intensity manufactures CNC-cut enclosures spec-matched to specific drivers in this collection. Internal volume, port tuning, and baffle dimensions are calculated from each driver's Thiele-Small parameters and cut to 0.005 inch tolerance in Tullahoma, Tennessee. No other retailer carrying these brands builds matched enclosures this way, so the subwoofer performs the way it was designed to rather than approximated in a generic box.
Yes. Every subwoofer in this collection is brand new, sold by an authorized dealer, and carries the full manufacturer warranty. We are not a closeout or grey-market retailer. Closeout pricing applies only to specific clearly marked SKUs, typically previous-generation models being phased out.
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