The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.

Up to 199.99 watts (38)

200–399.99 watts (261)

400–799.99 watts (406)

800–1,199.99 watts (152)

1,200–1,999.99 watts (68)

2,000 watts or more (197)

Peak Power Handling

Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.

Up to 299.99 watts (6)

300–499.99 watts (55)

500–799.99 watts (159)

800–1,199.99 watts (186)

1,200–1,599.99 watts (177)

1,600–2,399.99 watts (172)

2,400 watts or more (250)

Series

Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.

Apocalypse Series (19)

W7 Anniversary Edition Series (12)

Prime Series (11)

R2 Series (11)

Solo-Baric L7S Series (11)

Solo-Baric L7T Series (11)

Punch P3 Series (10)

Reference Series (10)

TW3 Shallow Mount Series (9)

ZR Series (9)

55 Series (8)

CompVT Series (8)

Diamond Elite Series (8)

IXS Shallow Series (8)

Level 4 Series (8)

Mille Pro Series (8)

Nightshade (NS) Series (8)

SA Classic Series (8)

Hifonics Elite Series (7)

Solo-Baric L7R Series (7)

SoloXS L7XS Series (5)

Space Series (5)

Stage Series (5)

Terminator Series (5)

Punch P3 Shallow Mount Series (4)

TW5 Shallow Mount Series (4)

Solo-Baric L7 Series (3)

Earthquake DBXI Series (2)

Elite Series (2)

ES Series (2)

Excelon Reference Series (2)

Mille Legend Series (2)

Polk Audio MM1 Series (2)

Stroker Pro Series (2)

XMAXXX Monster Series (2)

Diamond Shallow Series (1)

GT Series (1)

GTX Series (1)

HF Series (1)

JackHammer Series (1)

Performance Series (1)

Primus Series (1)

Punch P2 Series (1)

S65 Series (1)

SPL Monster Series (1)

Tarantula T5 Series (1)

Subwoofer Size

Refers to the diameter of the subwoofer, measured in inches.

Shallow Mount Installation

This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No (900)

Yes (203)

Top-Mount Depth (Mounting Depth)

The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.

Voice Coil(s)

Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.

Dual (2 voice coils) (854)

Single (1 voice coil) (265)

Triple (3 voice coils) (4)

Quad (4 voice coils) (1)

Impedance (Per Voice Coil)

The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.

Sort Impedance (Per Voice Coil) alphanumerically

Subwoofer Design

This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round (1,062)

Square (62)

Oval (1)

Minimum Sealed Box Volume

This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Up to 0.99 cubic feet (243)

1–1.99 cubic feet (102)

2 cubic feet or more (17)

Maximum Sealed Box Volume

This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Up to 0.99 cubic feet (86)

1–1.99 cubic feet (135)

2 cubic feet or more (120)

Sensitivity

An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".

Main Cone Color

This is the color of the speaker's or subwoofer's cone.

Recommended Enclosure Type

This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Bandpass (17)

Ported / Vented (1,021)

Sealed (843)

Xmax (millimeters)

Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.

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On Sale (165)

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Subs and Sub Box Deals (303)

VIP (525)

Condition

Brand New (992)

Like New & Used (135)

Availability

In Stock (828)

Out of stock (149)

In stock. Ships from manufacturer (150)

Available to order (107)

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PRV Audio RS65-SUBD4

600W Peak (300W RMS) 6.5" RS Series Dual 4-ohm Car Subwoofer

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PRV Audio RS65-SUBD4

600W Peak (300W RMS) 6.5" RS Series Dual 4-ohm Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• High Roll Foam surround
• Mount depth: 3.46"
• Sensitivity: 82 dB

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• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• High Roll Foam surround
• Mount depth: 3.46"
• Sensitivity: 82 dB

DS18 ZXI8.2D

1200W Peak (600W RMS) 8" ZXI Series High Excursion Dual 2-ohm Subwoofer

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DS18 ZXI8.2D

1200W Peak (600W RMS) 8" ZXI Series High Excursion Dual 2-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Non-Pressed Paper Cone
• Foam Surround
• Mount depth: 5.51"
• Sensitivity: 86 dB

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NVX ESW104

500W Peak (250W RMS) 10" E-Series Single 4-ohm Car Subwoofer

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NVX ESW104

500W Peak (250W RMS) 10" E-Series Single 4-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 4.92"
• Sensitivity: 85 dB

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Massive Audio SUMMOXL104

3000W Peak (1500W RMS) 10" SUMMO Series Dual 4-ohm Car Subwoofer

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Massive Audio SUMMOXL104

3000W Peak (1500W RMS) 10" SUMMO Series Dual 4-ohm Car Subwoofer

• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Impedance: Dual 4 ohm
• Non-Pressed Paper Cone
• Foam Surround
• Mount depth: 6.81"
• Sensitivity: 90.3 dB

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Kicker CWRT102 (48CWRT102)

800W Peak (400W RMS) 10" CompRT Series Dual 2-ohm Shallow Car Subwoofer

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Kicker CWRT102 (48CWRT102)

800W Peak (400W RMS) 10" CompRT Series Dual 2-ohm Shallow Car Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 2 ohm
• UV-Treated Polypropylene Cone
• UV-resistant Santoprene Surround
• Mount depth: 3-7/16"
• Sensitivity: 84.8 dB

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Sundown Audio Z-15 v.6 D1 15" (Z15V6D1)

6500W Peak (3250W RMS) 15" Z Series Dual 1-ohm Car Subwoofer (SW-ZV615D1)

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Sundown Audio Z-15 v.6 D1 15" (Z15V6D1)

6500W Peak (3250W RMS) 15" Z Series Dual 1-ohm Car Subwoofer (SW-ZV615D1)

• Peak Power: 6500 watts
• RMS Power: 3250 watts
• Impedance: Dual 1 ohm
• Treated Paper Cone
• Mega Roll V2 Surround
• Mount depth: 12.93"
• Sensitivity: 86.10 dB

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Kicker L7T84 (46L7T84)

700W Peak (350W RMS) 8" Solo-Baric L7T Series Dual 4-ohm Shallow Car Subwoofer

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Kicker L7T84 (46L7T84)

700W Peak (350W RMS) 8" Solo-Baric L7T Series Dual 4-ohm Shallow Car Subwoofer

• Peak Power: 700 watts
• RMS Power: 350 watts
• Impedance: Dual 4 ohm
• SoloKon Polypropylene Cone
• Ribbed Santoprene Surround
• Mount depth: 2-3/4"
• Sensitivity: 84.835 dB

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2026-06-28 23:59:00

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American Bass VFL Comp Signature 18" (VFLCOMP-1811)

10000W Peak (5000W RMS) 18" VFL Competition Series Dual 1-ohm Subwoofer

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American Bass VFL Comp Signature 18" (VFLCOMP-1811)

10000W Peak (5000W RMS) 18" VFL Competition Series Dual 1-ohm Subwoofer

• Peak Power: 10000 watts
• RMS Power: 5000 watts
• Impedance: Dual 1 ohm
• Kevlar Fiber-Enforced Non-Pressed Paper cone
• High Roll Foam surround
• Mount depth: 11"

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American Bass VFL Comp Signature 18" (VFLCOMP-1822)

10000W Peak (5000W RMS) 18" VFL Competition Series Dual 2-ohm Subwoofer

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American Bass VFL Comp Signature 18" (VFLCOMP-1822)

10000W Peak (5000W RMS) 18" VFL Competition Series Dual 2-ohm Subwoofer

• Peak Power: 10000 watts
• RMS Power: 5000 watts
• Impedance: Dual 2 ohm
• Kevlar Fiber-Enforced Non-Pressed Paper cone
• High Roll Foam surround
• Mount depth: 11"

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Kicker CWCD124 (50CWCD124) (Open Box, Great)

600W Peak (300W RMS) 12" CompC Series Dual 4-ohm Subwoofer

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Kicker CWCD124 (50CWCD124) (Open Box, Great)

600W Peak (300W RMS) 12" CompC Series Dual 4-ohm Subwoofer

• Peak Power: 600 watts
• RMS Power: 150-300 watts
• Impedance: Dual 4 ohm
• Injection Molded Polypropylene Cone
• Ribbed Polyurethane Surround
• Mount depth: 5-3/4"
• Sensitivity: 87.1 dB

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Diamond Audio DES82 (Open Box, Great)

500W Peak (250W RMS) 8" DES Series Dual 2-ohm Car Subwoofer

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Diamond Audio DES82 (Open Box, Great)

500W Peak (250W RMS) 8" DES Series Dual 2-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 2 ohm
• Sensitivity: 82 dB

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• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 2 ohm
• Sensitivity: 82 dB

JBL Stage 102 (JBLSUBST102AM)

900W Peak (225W RMS) 10" Stage Series Single 4-ohm Car Subwoofer

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JBL Stage 102 (JBLSUBST102AM)

900W Peak (225W RMS) 10" Stage Series Single 4-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 225 watts
• Impedance: Single 4 ohm
• Polypropylene Subwoofer Cone material
• Rubber Subwoofer Surround material
• Mount depth: 4.525"
• Sensitivity: 89 dB

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Sundown Audio SML-8 D4 8" (SML8D4)

800W Peak (400W RMS) 8" SML Series Dual 4-ohm Shallow Car Subwoofer (SW-SML8D4)

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Sundown Audio SML-8 D4 8" (SML8D4)

800W Peak (400W RMS) 8" SML Series Dual 4-ohm Shallow Car Subwoofer (SW-SML8D4)

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Pressed Paper cone
• Pressed Foam surround
• Mount depth: 3.9"
• Sensitivity: 82.5 dB

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Sundown Audio SML-10 D2 10" (SML10D2)

1200W Peak (600W RMS) 10" SML Series Dual 2-ohm Shallow Car Subwoofer (SW-SML10D2)

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Sundown Audio SML-10 D2 10" (SML10D2)

1200W Peak (600W RMS) 10" SML Series Dual 2-ohm Shallow Car Subwoofer (SW-SML10D2)

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Pressed Paper cone
• Pressed Foam surround
• Mount depth: 3.78"
• Sensitivity: 86.1 dB

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Soundstream T5.122

2000W Peak (1000W RMS) 12" Tarantula T5 Series Dual 2-ohm Car Subwoofer

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Soundstream T5.122

2000W Peak (1000W RMS) 12" Tarantula T5 Series Dual 2-ohm Car Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Impedance: Dual 2 ohm
• Spruce Pulp cone
• Polyether Foam surround
• Mount depth: 7"
• Sensitivity: 86 dB

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2027-05-31 23:59:00

List price $200.99

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JL Audio 12W7AE-3

1000W RMS 12" W7AE Series Single 3-ohm Car Subwoofer

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JL Audio 12W7AE-3

1000W RMS 12" W7AE Series Single 3-ohm Car Subwoofer

• RMS Power: 1000 watts
• Impedance: Single 3 ohm
• Polypropylene Cone
• Polyester Foam Surround
• Mount depth: 9.50"
• Sensitivity: 86.2 dB

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JL Audio 12W1v3-4

300W RMS 12" W1v3 Series Single 4-ohm Car Subwoofer

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JL Audio 12W1v3-4

300W RMS 12" W1v3 Series Single 4-ohm Car Subwoofer

• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 5.41"
• Sensitivity: 86.1 dB

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Rockford Fosgate Punch P2 P2D4-8

500W Peak (250W RMS) 8" Punch Series Dual 4-ohm Car Subwoofer

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Rockford Fosgate Punch P2 P2D4-8

500W Peak (250W RMS) 8" Punch Series Dual 4-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Dual 4 ohm
• Kevlar Reinforced Pulp Paper Cone
• Rubber Surround
• Mount depth: 4.76"
• Sensitivity: 83 dB

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2026-06-30 23:59:00

List price $149.99

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Kicker L7R124 (45L7R124)

1200W Peak (600W RMS) 12” Solo-Baric L7R Series Dual 4-ohm Subwoofer

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Kicker L7R124 (45L7R124)

1200W Peak (600W RMS) 12” Solo-Baric L7R Series Dual 4-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Injection-molded SoloKon Cone
• Ribbed Santoprene Surround
• Mount depth: 6 7/8"
• Sensitivity: 86.7 dB

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2026-06-28 23:59:00

List price $299.99

Save $84.03

-28% $215.96

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Save 25% off a Kicker Specific Vented Subwoofer Enclosure

JL Audio 10W1v3-2

300W RMS 10" W1v3 Series Single 2-ohm Subwoofer

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JL Audio 10W1v3-2

300W RMS 10" W1v3 Series Single 2-ohm Subwoofer

• RMS Power: 300 watts
• Impedance: Single 2 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 4.6"
• Sensitivity: 83.9 dB

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$249.99

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FAQ for Universal Subwoofers in 1984 733i

Q: Can I upgrade or change the Universal Subwoofers in 1984 BMW 733i?

A: Yes this page includes all the best Universal Subwoofers that work in your 733i.

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Universal Subwoofers for 1984 BMW 733i

PRV Audio RS65-SUBD4

PRV Audio RS65-SUBD4

DS18 ZXI8.2D

DS18 ZXI8.2D

NVX ESW104

NVX ESW104

Massive Audio SUMMOXL104

Massive Audio SUMMOXL104

Kicker CWRT102 (48CWRT102)

Kicker CWRT102 (48CWRT102)

Sundown Audio Z-15 v.6 D1 15" (Z15V6D1)

Sundown Audio Z-15 v.6 D1 15" (Z15V6D1)

Kicker L7T84 (46L7T84)

Kicker L7T84 (46L7T84)

American Bass VFL Comp Signature 18" (VFLCOMP-1811)

American Bass VFL Comp Signature 18" (VFLCOMP-1811)

American Bass VFL Comp Signature 18" (VFLCOMP-1822)

American Bass VFL Comp Signature 18" (VFLCOMP-1822)

Kicker CWCD124 (50CWCD124) (Open Box, Great)

Kicker CWCD124 (50CWCD124) (Open Box, Great)

Diamond Audio DES82 (Open Box, Great)

Diamond Audio DES82 (Open Box, Great)

JBL Stage 102 (JBLSUBST102AM)

JBL Stage 102 (JBLSUBST102AM)

Sundown Audio SML-8 D4 8" (SML8D4)

Sundown Audio SML-8 D4 8" (SML8D4)

Sundown Audio SML-10 D2 10" (SML10D2)

Sundown Audio SML-10 D2 10" (SML10D2)

Soundstream T5.122

Soundstream T5.122

JL Audio 12W7AE-3

JL Audio 12W7AE-3

JL Audio 12W1v3-4

JL Audio 12W1v3-4

Rockford Fosgate Punch P2 P2D4-8

Rockford Fosgate Punch P2 P2D4-8

Kicker L7R124 (45L7R124)

Kicker L7R124 (45L7R124)

JL Audio 10W1v3-2

JL Audio 10W1v3-2

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