Your Filters
RMS Power Handling
401–800 watts [x]
Narrow Your Results
Price range: $40–$632
Items in range: 190
Availability:
In Stock (162)
Impedance (Per Voice Coil):
4 (109)
2 (68)
3 (4)
6 (4)
8 (3)
1 (2)
Subwoofer Design:
Round (172)
Square (17)
Shallow Mount Installation:
No (164)
Yes (10)
Main Cone Color:
Black (141)
Silver (13)
Red (2)
Blue (2)
Recommended Enclosure Type:
Sealed (177)
Bandpass (11)
Xmax (millimeters):
Subwoofer Size:
12 (74)
10 (56)
15 (48)
8 (7)
13.5 (4)
13 (1)
Items per page: 20 50 100

All Car Subwoofers

12" Dual 4 ohm VS-Series Car Subwoofer
Free Ground Shipping within the 48 states
12" VS-Series Subwoofer • Dual 4-ohm Voice Coil • Power Range: 400-600 Watts RMS • Hybrid Carbon And Fiberglass Woven Cone With A Pressed Paper Backing • High Excursion 3-Layer Foam Surround • Stamped Steel Basket • Dual Nomex Spiders
Limited Time! FREE Ported 12" Sub Box with NVX VSW Sub
$169.99
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (4 reviews)
12" Dual 4 Ohm Type-R Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Type-R Series Subwoofer • Dual 4-Ohm Voice Coil • 3000W Max • 300-1000W RMS • Kevlar Treated Pulp Cone • Durable HAMR Santoprene Surround
$169.99
Shipping: FREE
To the US 48 • other rates
  • 4.8
  (25 reviews)
12" Dual 4 ohm Punch Stage 3 Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Punch P3 Series Dual 4 Ohm Subwoofer • 1200W Peak • 600W RMS • Anodized Aluminum Heat Sinking Cone • Santoprene Vertical Attach Surround Technique • 4-Layer 2-1/2" Voice Coil • Proprietary Spider Venting
$139.99
Shipping: FREE
To the US 48 • other rates
  • 4.9
  (37 reviews)
12" Dual 4 ohm SE-X Series Car Subwoofer
Free Ground Shipping within the 48 states
12" SEX Series Car Subwoofer • 600 Watts RMS • Dual 4 ohm • Rubatek Foam Surround • Dual Composite 2-Piece Cone • Tork-Tite Terminals • Progressive Spiders • Triple Stacked Magnets
$159.99
Shipping: FREE
To the US 48 • other rates
  • 4.8
  (61 reviews)
15" Dual 4 ohm CompVR Series Car Subwoofer
Free Ground Shipping within the 48 states
15" CompVR Series Subwoofer • 1000W Max • 500W RMS • Polymineral Injection ISD Cone • Stamped Steel Basket • Ultra-Length Voice Coils • Rear Cone Brace
$119.99
Shipping: FREE
To the US 48 • other rates
  • 4.6
  (42 reviews)
8" Dual 4 ohm Solo-Baric L7 Series Car Subwoofer
Free Ground Shipping within the 48 states
8" Dual 4 Ohm Solo-Baric L7 Series Subwoofer • 900W Max • 450W RMS • Titanium deposit impregnated cone woofer with rolled outer edge • Santoprene rubber surround • Highly-efficient UniPlate™ pole-piece/back plate
$178.54
Shipping: FREE
To the US 48 • other rates
  • 4.8
  (9 reviews)
12" Dual 4-Ohm Axis Series Subwoofer
Free Ground Shipping within the 48 states
12" Axis Series Subwoofer • Dual 4-Ohm Voice Coils • 1000W Max • 500W RMS • Injection Molded Polypropylene Cone • Butyl Rubber Surround • Sensitivity: 94dB
$59.99
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (2 reviews)
15" Dual 2 Ohm Solo-Baric L3 Series Car Subwoofer
Free Ground Shipping within the 48 states
15" Solo-Baric L3 Series Subwoofer • 1000W Max • 500W RMS • Double-Stitched Santoprene Rubber Surround • Stamped Steel Basket • Vented 360° Back Bracing • Poly-Cotton Semi-Progressive Spider
$149.99
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (2 reviews)
10" Dual 4 ohm SE-X Series Car Subwoofer
Free Ground Shipping within the 48 states
10" SEX Series Car Subwoofer • 600 Watts RMS • Dual 4 ohm • Rubatek Foam Surround • Dual Composite 2-Piece Cone • Tork-Tite Terminals • Progressive Spiders • Triple Stacked Magnets
$129.99
Shipping: FREE
To the US 48 • other rates
  • 4.8
  (36 reviews)
10" Dual 2 ohm P3 Series Car Subwoofer
Free Ground Shipping within the 48 states
10" Dual 2 ohm P3 Series Subwoofer • 2000W Max • 800W RMS • Polypropylene injection molded cone woofer • Poly cotton spider • KSV Kapton voice coil • Nickel plated 8 Gauge compression wire terminal
$79.99
Shipping: FREE
To the US 48 • other rates
  • 4.5
  (8 reviews)
12" Dual 4-Ohm Type-S Car Subwoofer
Free Ground Shipping within the 48 states
12" Type-S Series Subwoofer • Dual 4-Ohm Voice Coil • 1500W Max • 500W RMS • Kevlar Treated Pulp Cone • Durable HAMR Santoprene™ Surround
$99.95
Shipping: FREE
To the US 48 • other rates
  • 4.5
  (10 reviews)
10" Dual 4 ohm CompR Series Car Subwoofer
Free Ground Shipping within the 48 states
10" CompR (CWR) Subwoofer • Dual 4 Ohm • 1200 Watts Max • 600 Watts RMS • Injeced Molded Polypropylene Cone • Double Stitched Surround • Ribbed Santoprene Surround • Spring-Loaded Terminals • Spiralead Tinsel Leads
$129.95
Shipping: FREE
To the US 48 • other rates
12" Dual 2 ohm CompR Series Car Subwoofer
Free Ground Shipping within the 48 states
12" CompR (CWR) Subwoofer • Dual 2 Ohm • 1600 Watts Max • 800 Watts RMS • Injeced Molded Polypropylene Cone • Double Stitched Surround • Ribbed Santoprene Surround • Spring-Loaded Terminals • Spiralead Tinsel Leads
$149.95
Shipping: FREE
To the US 48 • other rates
15" Dual 2 ohm Type-R Series Car Subwoofer
Free Ground Shipping within the 48 states
15" High Performance Subwoofer • Dual 2 Ohm Voice Coil • 750W RMS • 2000W Max • Multi-Roll Santoprene Surround • Parabolic Kevlar / Pulp Fiber Cone • CRC Motor Structure • Concealed Mount Gasket System • One-Sided Terminal Layout
$199.99
Shipping: FREE
To the US 48 • other rates
  • 4.9
  (37 reviews)
10" Dual 2 ohm SE-X Series Car Subwoofer
Free Ground Shipping within the 48 states
10" SEX Series Car Subwoofer • 600 Watts RMS • Dual 2 ohm • Rubatek Foam Surround • Dual Composite 2-Piece Cone • Tork-Tite Terminals • Progressive Spiders • Triple Stacked Magnets
$129.99
Shipping: FREE
To the US 48 • other rates
  • 4.9
  (17 reviews)
12" Dual 4 Ohm Square Brutus Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Brutus Series Square Subwoofer • Dual 4 Ohm • 1200 Watts Max • 600 Watts RMS • Polypropylene Cone • Rubber Surround • Dual Nomex Spiders • Push and Insert Speaker Terminals • 2.5" High-Temperature Voice Coil
$82.99
Shipping: FREE
To the US 48 • other rates
  • 4.4
  (25 reviews)
10" Dual 4 ohm Punch Stage 3 Series Car Subwoofer
Free Ground Shipping within the 48 states
10" Punch P3 Series Dual 4 Ohm Subwoofer • 1000W Peak • 500W RMS • Anodized Aluminum Heat Sinking Cone • Santoprene Vertical Attach Surround Technique • 4-Layer 2-1/2" Voice Coil • Proprietary Spider Venting
$129.00
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (3 reviews)
12" Dual 4 ohm P2 Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Dual 4 ohm P2 Series Subwoofer • 1400W Max • 700W RMS • Polypropylene injection molded cone woofer • Butyl rubber surround • Poly cotton spider • Texture coat finish on stamped steel basket • Nickel plated 8 Gauge compression wire terminal
$59.99
Shipping: FREE
To the US 48 • other rates
  • 4.0
  (7 reviews)
12" Dual 2 ohm Punch Stage 3 Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Punch P3 Series Dual 2 Ohm Subwoofer • 1200W Peak • 600W RMS • Anodized Aluminum Heat Sinking Cone • Santoprene Vertical Attach Surround Technique • 4-Layer 2-1/2" Voice Coil • Proprietary Spider Venting
$139.99
Shipping: FREE
To the US 48 • other rates
  • 4.5
  (19 reviews)
15" Dual 2 ohm SE-X Series Car Subwoofer
Free Ground Shipping within the 48 states
15" SEX Series Car Subwoofer • 600 Watts RMS • Dual 2 ohm • Rubatek Foam Surround • Dual Composite 2-Piece Cone • Tork-Tite Terminals • Progressive Spiders • Triple Stacked Magnets
$169.99
Shipping: FREE
To the US 48 • other rates
  • 4.9
  (14 reviews)
12" Dual 4 ohm Vibe Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Dual 4 ohm Subwoofer • 1600W Max • 800W RMS • Black polypropylene cone woofer • Treated foam edge suspension • 2-1/2" High temperature dual voice coil
$44.99
Shipping: FREE
To the US 48 • other rates
  • 4.2
  (16 reviews)
12" Dual 4 ohm CompR Series Car Subwoofer
Free Ground Shipping within the 48 states
12" CompR (CWR) Subwoofer • Dual 4 Ohm • 1600 Watts Max • 800 Watts RMS • Injeced Molded Polypropylene Cone • Double Stitched Surround • Ribbed Santoprene Surround • Spring-Loaded Terminals • Spiralead Tinsel Leads
$149.95
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (3 reviews)
12" Dual 4 ohm Brutus Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Brutus Series Subwoofer • Dual 4 Ohm • 900 Watts Max • 450 Watts RMS • Polypropylene Cone • Rubber Surround • Dual Nomex Spiders • Push and Insert Speaker Terminals • 2.5" High-Temperature Voice Coil
$99.99
Shipping: FREE
To the US 48 • other rates
15" Dual 2 ohm CompVR Series Car Subwoofer
Free Ground Shipping within the 48 states
15" 1000 watt Component Subwoofer • Dual 2-ohm Voice Coils • 500W RMS • Polymineral Injection ISD Cone • Stamped Steel Basket • Ultra-Length Voice Coils • Rear Cone Brace
$129.99
Shipping: FREE
To the US 48 • other rates
  • 4.7
  (31 reviews)
Availability: Out of Stock - Backorder
E-mail me when it is in stock
15" Dual 4 ohm SE-X Series Car Subwoofer
Free Ground Shipping within the 48 states
15" SEX Series Car Subwoofer • 600 Watts RMS • Dual 4 ohm • Rubatek Foam Surround • Dual Composite 2-Piece Cone • Tork-Tite Terminals • Progressive Spiders • Triple Stacked Magnets
$169.99
Shipping: FREE
To the US 48 • other rates
  • 4.7
  (18 reviews)
15" Dual 4-Ohm Type-S Car Subwoofer
Free Ground Shipping within the 48 states
15" Type-S Series Subwoofer • Dual 2-Ohm Voice Coil • 1500W Max • 500W RMS • Kevlar Treated Pulp Cone • Durable HAMR Santoprene™ Surround • Progressive Spider for Reliable and Consistent Control
$119.99
Shipping: FREE
To the US 48 • other rates
  • 4.9
  (8 reviews)
10" Dual 4 ohm P2 Series Car Subwoofer
Free Ground Shipping within the 48 states
10" Dual 4 ohm P2 Series Subwoofer • 1200W Max • 500W RMS • Polypropylene injection molded cone woofer • Butyl rubber surround • Poly cotton spider • KSV Kapton voice coil • Suspension integrated tinsel leads • 110 oz. Magnet structure
$42.95
Shipping: FREE
To the US 48 • other rates
  • 4.0
  (9 reviews)
12" Dual 4 ohm Mean Machine Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Mean Machine Series Subwoofer • Dual 4 ohm • 1000 Watts Max • 500 Watts RMS • Black Polypropylene Cone • High Excursion Rubber Surround • Made for Sealed or Ported Enclosures • Blue Illuminated Mean Machines Logo
$49.99
Shipping: FREE
To the US 48 • other rates
  • 4.0
  (12 reviews)
10" Dual 4 ohm Power T1 Series Car Subwoofer
Free Ground Shipping within the 48 states
10" Dual 4 ohm T1 Power Series Subwoofer • 1200W Max • 600W RMS • High Excursion TPE (Thermo-Plastic Elastomer) Surround • SWIFT Impedance Selection • Dual Opposing Spiders • Parabolic Triangular Cone Geometry
$209.99
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (5 reviews)
15" Dual 4 ohm Punch Stage 3 Series Car Subwoofer
Free Ground Shipping within the 48 states
15" Punch P3 Series Dual 4 Ohm Subwoofer • 1200W Peak • 600W RMS • Anodized Aluminum Heat Sinking Cone • Santoprene Vertical Attach Surround Technique • 4-Layer 2-1/2" Voice Coil • Proprietary Spider Venting
$169.99
Shipping: FREE
To the US 48 • other rates
  • 4.7
  (10 reviews)
15" Dual 4 Ohm Solo-Baric L3 Series Car Subwoofer
Free Ground Shipping within the 48 states
15" Solo-Baric L3 Series Subwoofer • 1000W Max • 500W RMS • Double-Stitched Santoprene Rubber Surround • Stamped Steel Basket • Vented 360° Back Bracing • Poly-Cotton Semi-Progressive Spider
$159.95
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (1 review)
10" Dual 4 ohm Vibe Series Car Subwoofer
Free Ground Shipping within the 48 states
10" Dual 4 ohm Vibe Series Subwoofer • 1200W Max • 600W RMS • Black polypropylene cone woofer • Treated foam edge suspension • 2" High temperature dual voice coil
$39.99
Shipping: FREE
To the US 48 • other rates
  • 4.1
  (19 reviews)
12" Dual 4 ohm Solo-Baric L7 Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Solo-Baric L7 Series Subwoofer • 1500W Max • 750W RMS • Titanium deposit impregnated cone woofer with rolled outer edge • Santoprene rubber surround • Highly-efficient UniPlate™ pole-piece/back plate
Save 50% on a Ported Ground Shaker Box with Purchase!
$349.95
Shipping: FREE
To the US 48 • other rates
  • 4.5
  (23 reviews)
12" Single 4 ohm Chaos Exxtreme Series Car Subwoofer
Free Ground Shipping within the 48 states
12" EXXTREME Series High Power Subwoofer • 1400W Peak • 700W RMS • 4 Ohm Impedance • Custom Tooled Polypropylene Cone • Butyl Rubber Surround • 2" High Temperature Aluminum Voice Coil • 39 oz Magnet Structure
$44.99
Shipping: FREE
To the US 48 • other rates
  • 4.1
  (24 reviews)
Availability: Out of Stock - Backorder
E-mail me when it is in stock
10" Dual 4 ohm Chaos Exxtreme Series Car Subwoofer
Free Ground Shipping within the 48 states
10" Dual 4 Ohm Chaos Exxtreme Series Subwoofer • Peak: 1200W • RMS: 600W • Poly Injection Woofer Cone • Butyl Rubber Surround • Silver Spring Binding Posts • 2" High Temperature Kapton Voice Coil • Mounting Depth: 5-7/8"
$44.99
Shipping: FREE
To the US 48 • other rates
  • 3.4
  (8 reviews)
15" Dual 2 ohm Power T0 Series Car Subwoofer
Free Ground Shipping within the 48 states
15" Dual 2 Ohm Power T0 Series Subwoofer • 1600W Peak • 800W RMS • Kevlar Fiber Reinforced Paper Cone • Vertical Attach Surround Technique • Flex Fit Basket • Stitched Tinsel Leads • CEA-2031 Certified
$284.95
Shipping: FREE
To the US 48 • other rates
  • 4.5
  (2 reviews)
12" Dual 4 ohm CompVX Series Car Subwoofer
Free Ground Shipping within the 48 states
12" CompVX Subwoofer • Dual 4 Ohm • 1500 Watts Max • 750 Watts RMS • Improved SoloKon Cone • Ribbed Santoprene Surround • Stitched Surround • Spiralead Tinsel Leads • Aluminum Basket
$299.95
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (33 reviews)
12" Dual 4 ohm Chaos Exxtreme Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Chaos Exxtreme Series Subwoofer • Dual 4 ohm • 1500 Watts Max • 750 Watts RMS • Polypropylene Injection Molded Cone • Butyl Rubber Surround • 2" High Temperature Kapton Voice Coil
$49.99
Shipping: FREE
To the US 48 • other rates
  • 3.8
  (14 reviews)
15" Dual 2 ohm Punch Stage 3 Series Car Subwoofer
Free Ground Shipping within the 48 states
15" Punch P3 Series Dual 2 Ohm Subwoofer • 1200W Peak • 600W RMS • Anodized Aluminum Heat Sinking Cone • Santoprene Vertical Attach Surround Technique • 4-Layer 2-1/2" Voice Coil • Proprietary Spider Venting
$169.99
Shipping: FREE
To the US 48 • other rates
  • 4.5
  (4 reviews)
12" Single 4 ohm W3v3 Series Car Subwoofer
Free Ground Shipping within the 48 states
12" W3 Single 4 ohm Subwoofer • 1000 watts Max • 500 watts RMS • Efficiency: 87.15 dB SPL • DMA (Dynamic Motor Analysis) modeling to deliver unsurpassed dynamic stability
$249.99
Shipping: FREE
To the US 48 • other rates
  • 4.9
  (44 reviews)
15" Dual 4-Ohm Axis Series Car Subwoofer
Free Ground Shipping within the 48 states
15" Axis Series Subwoofer • Dual 4-Ohm Voice Coil • 1200W Max • 600W RMS • Injection Molded Polypropylene Cone • Butyl Rubber Surround
$69.99
Shipping: FREE
To the US 48 • other rates
10" Single 4 ohm W3v3 Series Car Subwoofer
Free Ground Shipping within the 48 states
10" Single 4 Ohm W3v3 Series Subwoofer • 600W Max • 500W RMS • Mineral-filled polypropylene cone woofer • Nitrile-butylene rubber surround • Vented reinforcement collar • Spider and lead wire assembly
$215.95
Shipping: FREE
To the US 48 • other rates
  • 4.7
  (32 reviews)
12" Dual 4 ohm Marine Certified Mobile Monitor Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Mobile Monitor Series Subwoofer • Dual 4 ohm • 850 watts • 425 watts • Polymer woofer cone • Butyl rubber surround • Carbon Composite Basket • Marine Certified • Klippel Distortion Analyzer
$149.99
Shipping: FREE
To the US 48 • other rates
  • 4.4
  (10 reviews)
12" Dual 2 Ohm CompRT Shallow-Mount Thin Car Subwoofer
Free Ground Shipping within the 48 states
12" Series Subwoofer • Dual 2 ohm Voice Coil • 1600W Max • 800W RMS • Injection-Molded Polypropylene Cone • Tough Santoprene Surround with Interlocking Front Gasket • Inverted-Bumped Back Plate and Bumped Top Plate for Voice-Coil Clearance and Excursion • High-Temperature Voice Coil for Increased Power Handling
$189.95
Shipping: FREE
To the US 48 • other rates
10" Single 4 ohm Shallow Mount Type-R Series Car Subwoofer
Free Ground Shipping within the 48 states
10" Single 4 ohm Type-R Shallow Mount Subwoofer • Peak: 1,200 Watts • RMS: 600 Watts • Aluminum Woofer Cone • Santoprene Rubber Surround • Cast Aluminum Frame • Radial Finned Heat Sink • Special Spider Design
$299.00
Shipping: FREE
To the US 48 • other rates
  • 4.0
  (9 reviews)
10" Dual 2 ohm Punch Stage 3 Series Car Subwoofer
Free Ground Shipping within the 48 states
10" Punch P3 Series Dual 2 Ohm Subwoofer • 1000W Peak • 500W RMS • Anodized Aluminum Heat Sinking Cone • Santoprene Vertical Attach Surround Technique • 4-Layer 2-1/2" Voice Coil • Proprietary Spider Venting
$129.95
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (8 reviews)
12" Single 4-Ohm Axis Series Subwoofer
Free Ground Shipping within the 48 states
12" Axis Series Subwoofer • Single 4-Ohm Voice Coil • 1000W Max • 500W RMS • Injection Molded Polypropylene Cone • Butyl Rubber Surround
$52.99
Shipping: FREE
To the US 48 • other rates
10" Dual 4-ohm VC-Series Car Subwoofer
Free Ground Shipping within the 48 states
10" VC-Series Subwoofer • Dual 4-ohm Voice Coil • RMS Power Range: 600-750 watts • Pressed Paper Cone With Woven Fiber Top • High Excursion Foam Surround
Limited Time! FREE Ported 10" Sub Box with NVX VCW 10-inch
$199.99
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (4 reviews)
8" Dual 4 ohm Solo-Baric L7 Series Car Subwoofer
Free Ground Shipping within the 48 states
8" Dual 4 Ohm Solo-Baric L7 Series Subwoofer • 900W Max • 450W RMS • Titanium deposit impregnated cone woofer with rolled outer edge • Santoprene rubber surround • Highly-efficient UniPlate™ pole-piece/back plate
Save 50% on a Ported Ground Shaker Box with Purchase!
$249.95
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (1 review)
12" Single 4 ohm Shallow-Mount Diablo Series Car Subwoofer
Free Ground Shipping within the 48 states
12" Single 4 Ohm Diablo Series Shallow-mount Subwoofer • 1000W Max • 500W RMS • Poly injection woofer cone material • Butyl rubber surround • 2" voice coil • 80oz magnet structure • Frequency response: 28-20000 Hz
$49.95
Shipping: FREE
To the US 48 • other rates
  • 4.1
  (13 reviews)
Items per page: 20 50 100
Change zip [X]
Enter your zip code below to get accurate shipping quotes:
Zip:

Related Categories

Vehicle Specific Sub Enclosures
Looking for a subwoofer enclosure designed specifically for your vehicle? Browse our large selection of vehicle specific boxes that will fit perfectly in your car, truck, SUV, or any other vehicle you might have. Check checking back for the latest application for these enclosures.

All Car Subwoofers Information

There is arguably no greater improvement you can make to your car audio system than adding a subwoofer. A subwoofer is simply a large speaker designed to play low frequency notes that most car speakers cannot handle. These low-frequency drivers are available in a variety of sizes, ranging from tight, punchy-sounding 8” subwoofers up to boomy, bone-rattling 18" varieties. A subwoofer is equally vital for all types of music, whether you are listening to rock, hip-hop, jazz, classical or country. The bass doesn't have to be loud and boomy, but instead adds a richness and depth to the music. A sound system with a subwoofer doesn’t just let you hear the music, it lets you experience and enjoy it.

When shopping for car subwoofers, you will notice a diversity of wattages and voice coil configurations. Although this can make shopping for a subwoofer a bit more challenging, you’ll be able to get the perfect sub for your application rather than a "one-size-fits-all" model. While this is definitely not a steadfast rule, subwoofers below 400W RMS are typically good subs to add complementary bass to a factory or basic upgraded stereo system. Subwoofers between 400-800W RMS tend to be great woofers for most listeners, offering a great amount of powerful bass without requiring electrical upgrades or taking up excessive space. Subwoofers ranging from 800 watts and up are usually considered SPL (sound pressure level) woofers, which are designed for true bass-heads and bass competitors.