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2007 BMW 328xi

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Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Speakers & Speaker Installation for 2007 BMW 328xi

Find speakers to upgrade your sound and fit in the factory speaker location for your 328xi.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

All car speakers

Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

Center Dash Speaker(s)

Center Dash Speakers

Speakers for your center dash

Far-Rear Side Panels

Far-Rear Side Panel Speakers

Speakers for your far rear side panel speakers

Front Door Panel Speakers

Front Door Speakers

Speakers for your front door panels

Rear Deck Corner

Rear Deck Corner Speakers

Speakers for your corner rear deck

Rear Door Panel Speakers

Rear Door Panel Speakers

Speakers for your rear door panels

Under Front Seat

Under Front Seat Speakers

Speakers for your under front seat.

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Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
RMS Power Handling
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.
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.
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".
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.
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.
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
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.
PRO-X Series (19)
Machete Series (12)
PRO Series (10)
Punch Series (9)
Reference Series (9)
V Series (9)
Polk DB+ Series (8)
C2 Series (6)
EQ Series (6)
HED Series (6)
S Series (6)
C1 Series (5)
CS Series (5)
PRO-GM Series (5)
ZXI Series (5)
Apocalypse Series (4)
Club Series (4)
DMD Series (4)
G-Series (TSG) (4)
MSNEO Series (4)
Prime Series (4)
PS Series (4)
SPL Show Series (4)
VEX Series (4)
XED Series (4)
XL Series (4)
8PRO Series (3)
A Series (3)
BASSREV Series (3)
Cento Series (3)
Dieci Series (3)
EXL Series (3)
Kappa Series (3)
KS Series (3)
M Series (3)
MAS Series (3)
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Power Series (2)
Prime Series (2)
PRO-FR Series (2)
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Punch P1 Series (2)
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Reserve Series (2)
RS Series (2)
Sport Series (2)
SQ Series (2)
Stage 3 Gen 2 Series (2)
Stage 3 Series (2)
Street Reference Pro (2)
Stroker Pro Series (2)
Thunder Series (2)
VTEK Series (2)
Black Hydra Series (1)
CVPRO Series (1)
CVPX Series (1)
Diamond Elite Series (1)
E-Series (1)
ECX Series (1)
EPIC PRO Series (1)
EQ NEO Series (1)
eXcelon Series (1)
Godfather Pro Series (1)
GT7 Series (1)
GX Series (1)
Hawk Series (1)
HED Pro Series (1)
KFC Series (1)
MA Series (1)
MM Series (1)
MSPRO Series (1)
MX Series (1)
NEO SPL Series (1)
Octagonal Series (1)
Polk Audio MM1 Series (1)
Premium Series (1)
Pro Audio on Wheels Series (1)
Pro Audio Series (1)
PRO-CF Series (1)
PRO-SM Series (1)
PRO-ZT Series (1)
Rage Series (1)
Road Thunder Extreme Series (1)
SA Series (1)
Signature Series (1)
Stadium (1)
Stadium Series (1)
Stage 2 Gen 2 Series (1)
Stallion Series (1)
Studio Series (1)
Symphony Series (1)
Tsunami Series (1)
Uno Series (1)
Zeus Series (1)
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JL Audio C1-525x

100W RMS 5.25" C1 Series 2 Way Coaxial 4-ohm Car Speakers

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JL Audio C1-525x

100W RMS 5.25" C1 Series 2 Way Coaxial 4-ohm Car Speakers

• 50 watts RMS Each
• 3/4" Silk-Suspended Aluminum Edge Driven Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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$129.99 /pair

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Alpine BRV-S80C

300W Peak (100W RMS) 8" BassRev Series 2-Way 4-ohm Component Speaker System

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Alpine BRV-S80C

300W Peak (100W RMS) 8" BassRev Series 2-Way 4-ohm Component Speaker System

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Teteron Dome Tweeters
• Polypropylene-Mica cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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List price $455.00
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Cerwin-Vega XED525C

500W Peak (60W RMS) 5.25” XED Series 2-Way 4-ohm Component Speaker System

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Cerwin-Vega XED525C

500W Peak (60W RMS) 5.25” XED Series 2-Way 4-ohm Component Speaker System

• 250 watts Peak Each, 30 watts RMS Each
• 1/2" Metal Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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JBL Stage3 527 (STAGE3527AM)

400W Peak (80W RMS) 5.25” Stage3 Series 2 Way Coaxial 3-ohm Speakers

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JBL Stage3 527 (STAGE3527AM)

400W Peak (80W RMS) 5.25” Stage3 Series 2 Way Coaxial 3-ohm Speakers

• 200 watts Peak Each, 40 watts RMS Each
• Polypropylene cone material with Plus One woofer architecture
• Impedance: 3 ohm
• Sensitivity: 91 dB

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Hertz SV 200.1

1000W Peak (400W RMS) 8" SPL Show Series 4-ohm Midrange Car Speakers

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Hertz SV 200.1

1000W Peak (400W RMS) 8" SPL Show Series 4-ohm Midrange Car Speakers

• 500 watts Peak Each, 200 watts RMS Each
• Ultra-Light Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 100 dB

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• 500 watts Peak Each, 200 watts RMS Each
• Ultra-Light Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 100 dB

PRV Audio 5MR450-NDY-4 (Sold Individually)

900W Peak (450W RMS) 5" MR Series Pro Audio Midrange 4-ohm Car Speaker

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PRV Audio 5MR450-NDY-4 (Sold Individually)

900W Peak (450W RMS) 5" MR Series Pro Audio Midrange 4-ohm Car Speaker

• 900 watts Peak, 450 watts RMS
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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List price $137.39
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JL Audio C2-525

120W RMS 5.25" C2 Series 2-Way 4-ohm Component Speaker System

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JL Audio C2-525

120W RMS 5.25" C2 Series 2-Way 4-ohm Component Speaker System

• 60 watts RMS Each
• 3/4" Silk Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Hertz SV 200L

1000W Peak (500W RMS) 8" SPL Show Series 4-ohm Midbass Component Woofers

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Hertz SV 200L

1000W Peak (500W RMS) 8" SPL Show Series 4-ohm Midbass Component Woofers

• 500 watts Peak Each, 250 watts RMS Each
• Pulp Cotton Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94.5 dB

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Infinity Kappa 53XF (INFSPKKA53XFAM)

360W Peak (120W RMS) 5.25" Kappa Series 2-Way Coaxial 3-ohm Car Speakers

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Infinity Kappa 53XF (INFSPKKA53XFAM)

360W Peak (120W RMS) 5.25" Kappa Series 2-Way Coaxial 3-ohm Car Speakers

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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List price $249.95
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Cerwin-Vega V525

600W Peak (200W RMS) 5.25" Vega Series 2025 Edition 2-Way Coaxial 4-ohm Speakers

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Cerwin-Vega V525

600W Peak (200W RMS) 5.25" Vega Series 2025 Edition 2-Way Coaxial 4-ohm Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Balanced Dome Tweeters
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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$149.99 /pair

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Polk Audio DB5252 (DB 5252)

600W Peak (200W RMS) 5.25” DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

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Polk Audio DB5252 (DB 5252)

600W Peak (200W RMS) 5.25” DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" dual Silk Dome tweeters
• UV-Resistant Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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Kenwood KFC-1066S

440W Peak (42W RMS) 4" Sport Series 2-Way Coaxial 4-ohm Car Speakers

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Kenwood KFC-1066S

440W Peak (42W RMS) 4" Sport Series 2-Way Coaxial 4-ohm Car Speakers

• 220 watts Peak Each, 21 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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Sundown Audio E-5.25CX

200W RMS 5.25" E Series 2 Way Coaxial 4-ohm Speakers (S-E5.25CX)

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Sundown Audio E-5.25CX

200W RMS 5.25" E Series 2 Way Coaxial 4-ohm Speakers (S-E5.25CX)

• 50 watts RMS Each
• Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm

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List price $119.99
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Sundown Audio SA-8M 8" (SA8M)

500W Peak (260W RMS) 8" SA Series Mid-Bass 4-ohm Speakers (S-SA8M)

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Sundown Audio SA-8M 8" (SA8M)

500W Peak (260W RMS) 8" SA Series Mid-Bass 4-ohm Speakers (S-SA8M)

• 250 watts Peak Each, 130 watts RMS Each
• Woven Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 91.5 dB

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List price $479.99
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Hertz DSK 130.3

240W Peak (120W RMS) 5.25” Dieci Series 2-way 4-ohm Component Speaker System

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Hertz DSK 130.3

240W Peak (120W RMS) 5.25” Dieci Series 2-way 4-ohm Component Speaker System

• 120 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Dome-Cone tweeters with high-energy neodymium magnets
• Water-repellent Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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List price $230.00
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DS18 PRO-X8.4BM (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series 4-ohm Mid-Range Loudspeaker

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DS18 PRO-X8.4BM (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series 4-ohm Mid-Range Loudspeaker

• 550 watts Peak Each, 275 watts RMS Each
• Aluminum Bullet Tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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  • Under Front Seat
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$70.95

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Diamond Audio DMDX8C

390W Peak (130W RMS) 8" DMDX Series 2-Way Component Speaker System

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Diamond Audio DMDX8C

390W Peak (130W RMS) 8" DMDX Series 2-Way Component Speaker System

• 195 watts Peak Each, 65 watts RMS Each
• 1" Soft Dome Tweeters
• Impedance: 4 ohm
• Sensitivity: 87 dB

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• 195 watts Peak Each, 65 watts RMS Each
• 1" Soft Dome Tweeters
• Impedance: 4 ohm
• Sensitivity: 87 dB

Limited time!

Rockford Fosgate Punch P1V2-5

300W Peak (150W RMS) 5.25" Punch P1 Series 3 Way Coaxial 4-ohm Speakers

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Rockford Fosgate Punch P1V2-5

300W Peak (150W RMS) 5.25" Punch P1 Series 3 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 3/4" Tetolon Inverted Dome tweeters
• 3/8" Polypropylene-Piezo super tweeters
• Mica reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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List price $239.99
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MTX Audio THUNDER51

360W Peak (180W RMS) 5.25" Thunder Series 2-way 4-ohm Component Speakers System

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MTX Audio THUNDER51

360W Peak (180W RMS) 5.25" Thunder Series 2-way 4-ohm Component Speakers System

• 180 watts Peak Each, 90 watts RMS Each
• 1" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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List price $239.95
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Cerwin-Vega V4

480W Peak (160W RMS) 4" Vega Series 2025 Edition 2-Way Coaxial 4-ohm Speakers

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Cerwin-Vega V4

480W Peak (160W RMS) 4" Vega Series 2025 Edition 2-Way Coaxial 4-ohm Speakers

• 240 watts Peak Each, 80 watts RMS Each
• 1/2" Silk Balanced Dome Tweeters
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 83 dB

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$109.99 /pair

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    FAQ for Speakers in 2007 328xi

    Q: Can I upgrade or change the Speakers in 2007 BMW 328xi?

    A: Yes this page includes all the best Speakers that work in your 328xi.

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    Shop your 2007 328xi
    Why Use a Vehicle Fit Guide?
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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.

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