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2012 BMW 128i

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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 2012 BMW 128i

Find speakers to upgrade your sound and fit in the factory speaker location for your 128i.  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.

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

Under Front Seat

Under Front Seat Speakers

Speakers for your under front seat.

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Speaker Location
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 (24)
PRO Series (12)
S Series (12)
ZXI Series (10)
PRO-GM Series (9)
V Series (9)
Machete Series (8)
Punch Series (8)
SPL (8)
SPL Show Series (8)
NEO Series (7)
Club Series (6)
EQ Series (6)
Reference Series (5)
Zeus Series (5)
A Series (4)
Apocalypse Series (4)
DMD Series (4)
G-Series (TSG) (4)
MSNEO Series (4)
N-Series (4)
PNW Series (4)
Polk DB+ Series (4)
Prime Series (4)
Street Reference Pro (4)
Stroker Pro Series (4)
VEX Series (4)
XED Series (4)
XL Series (4)
8PRO Series (3)
BASSREV Series (3)
Dieci Series (3)
GX Series (3)
HED Series (3)
M Series (3)
MC Series (3)
MSPRO Series (3)
MX Series (3)
PRO-HY Series (3)
Stage 3 Series (3)
C1 Series (2)
C2 Series (2)
Cento Series (2)
CS Series (2)
DMDX Series (2)
DRVN Series (2)
Formula Series (2)
Godfather Series (2)
Hannibal Series (2)
KFC Series (2)
LCMR Series (2)
MA Series (2)
OptiSound Series (2)
PANCADÃO Series (2)
PRO-NS Series (2)
PRO-SM Series (2)
PS Series (2)
Punch Pro Series (2)
Reserve Series (2)
Sport Series (2)
VEGA Series (2)
Colossus Classic Series (1)
CVPRO Series (1)
CVPX Series (1)
CX Series (1)
Discus Series (1)
DR Series (1)
DS Series (1)
ECX Series (1)
EPIC PRO Series (1)
EQ NEO Series (1)
EXL Series (1)
Gen-X (1)
Godfather Pro Series (1)
Hawk Series (1)
HED Pro Series (1)
KS Series (1)
MAS Series (1)
MM Series (1)
MotorSport Series (1)
MR Series (1)
NEO SPL Series (1)
Octagonal Series (1)
Pro Audio on Wheels Series (1)
Pro Audio Series (1)
PRO-CF Series (1)
PRO-FR Series (1)
PRO-ZT Series (1)
Punch P1 Series (1)
Rage Series (1)
Road Thunder Extreme Series (1)
RS Series (1)
SA Series (1)
SQ Series (1)
Stage 2 Gen 2 Series (1)
Stage 3 Gen 2 Series (1)
Stage Series (1)
Stallion Series (1)
Terminator Series (1)
VSP Series (1)
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Infinity Reference REF-4032CFX with Installation Accessories

70W RMS Reference Series 4" 2-Way Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

REF4032CFXAM, FRING4, SDSK2, SDRLR1, BTK106 big
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Infinity Reference REF-4032CFX with Installation Accessories

70W RMS Reference Series 4" 2-Way Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 105 watts Peak Each, 35 watts RMS Each
• Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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Install kits available for most vehicles

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114
List price $212.66
-45% $117.75 /pair

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• 105 watts Peak Each, 35 watts RMS Each
• Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Diamond Audio MP84 with Installation Accessories

200W RMS 8" PRO Full-Range Coaxial Horn Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

MP84, XBAF8, SDSK2, SDRLR1, BTK106 big
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Diamond Audio MP84 with Installation Accessories

200W RMS 8" PRO Full-Range Coaxial Horn Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 200 watts Max Each, 100 watts RMS Each
• 1" Aluminum Horn Tweeters
• Heavy duty die-cast aluminum basket
• Advanced voice coil heat sink design for better heat dissipation
• Sensitivity: 103 dB
• Mounting Depth: 7.09"

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140
List price $622.70
$595.80 /pair

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• 200 watts Max Each, 100 watts RMS Each
• 1" Aluminum Horn Tweeters
• Heavy duty die-cast aluminum basket
• Advanced voice coil heat sink design for better heat dissipation
• Sensitivity: 103 dB
• Mounting Depth: 7.09"

Infinity Reference REF-4032cfx with Sound Damping

210W Peak (70W RMS) Reference Series 4" 2-Way Car Speakers + NVX SDSK2 Sound Damping

REF4032CFXAM_SDSK2 big
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Infinity Reference REF-4032cfx with Sound Damping

210W Peak (70W RMS) Reference Series 4" 2-Way Car Speakers + NVX SDSK2 Sound Damping

• 105 watts Peak Each, 35 watts RMS Each
• 1" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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47
List price $158.69
-40% $94.98

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• 105 watts Peak Each, 35 watts RMS Each
• 1" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Massive Audio MC 8II (Pair, 2-Total)

1200W Max (400W RMS) 8" MC Series 8-Ohm Midrange Component Speakers (Pair)

MC8II_2 big
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Massive Audio MC 8II (Pair, 2-Total)

1200W Max (400W RMS) 8" MC Series 8-Ohm Midrange Component Speakers (Pair)

• 600W Max Each, 200W RMS Each
• 56 oz. Strontium Magnet
• Kevlar Impregnated Paper Cone
• 8 ohm Impedance
• Sensitivity: 98dB
• Mounting Depth: 3.15"

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• 600W Max Each, 200W RMS Each
• 56 oz. Strontium Magnet
• Kevlar Impregnated Paper Cone
• 8 ohm Impedance
• Sensitivity: 98dB
• Mounting Depth: 3.15"

JBL GX428 (JBLGX428AM) with Sound Damping

210W Peak (70W RMS) 4" GX Series 2-way 2.3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

GX428AM_SDBSK2 big
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JBL GX428 (JBLGX428AM) with Sound Damping

210W Peak (70W RMS) 4" GX Series 2-way 2.3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 105 watts Peak Each, 35 watts RMS Each
• Edge-driven Soft Dome tweeters with deflector
• Polypropylene Plus One woofer cone material
• Impedance: 2.3 ohm
• Sensitivity: 90 dB

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46
$79.94

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• 105 watts Peak Each, 35 watts RMS Each
• Edge-driven Soft Dome tweeters with deflector
• Polypropylene Plus One woofer cone material
• Impedance: 2.3 ohm
• Sensitivity: 90 dB

Massive Audio MX4 with Sound Damping

300W Peak (60W RMS) 4" MX Series 2-way 4-ohm Coaxial Car Speakers+ NVX SDBSK2 Premium Sound Damping

MA-MX4_SDBSK2 big
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Massive Audio MX4 with Sound Damping

300W Peak (60W RMS) 4" MX Series 2-way 4-ohm Coaxial Car Speakers+ NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 30 watts RMS Each
• 0.51" Hard diaphragm Dome tweeters with ferro-fluid cooled VC
• Laminate-Treated Paper cone material
• 2 custom painted metal speaker grilles Included
• Impedance: 4 ohm
• Sensitivity: 91.5 dB

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47
List price $68.73
-20% $54.98

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• 150 watts Peak Each, 30 watts RMS Each
• 0.51" Hard diaphragm Dome tweeters with ferro-fluid cooled VC
• Laminate-Treated Paper cone material
• 2 custom painted metal speaker grilles Included
• Impedance: 4 ohm
• Sensitivity: 91.5 dB

Massive Audio MC 8II (Sold Individually) with Sound Damping

600W Peak (200W RMS) 8" MC Series 8-ohm Pro-Audio Midrange Car Speaker + NVX SDBSK2 Premium Sound Damping

MC8II_SDBSK2 big
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Massive Audio MC 8II (Sold Individually) with Sound Damping

600W Peak (200W RMS) 8" MC Series 8-ohm Pro-Audio Midrange Car Speaker + NVX SDBSK2 Premium Sound Damping

• 600 watts Peak Each, 200 watts RMS Each
• Kevlar-Enhanced Paper cone material
• Impedance: 8 ohm
• Sensitivity: 98.1 dB

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List price $118.73
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• 600 watts Peak Each, 200 watts RMS Each
• Kevlar-Enhanced Paper cone material
• Impedance: 8 ohm
• Sensitivity: 98.1 dB

Hertz SX 200 NEO with Sound Damping

520W Peak (260W RMS) 8" NEO SPL Series 2-way 4-ohms coaxial car speakers + NVX SDSK2 Sound Damping

SX200NEO_SDSK2 big
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Hertz SX 200 NEO with Sound Damping

520W Peak (260W RMS) 8" NEO SPL Series 2-way 4-ohms coaxial car speakers + NVX SDSK2 Sound Damping

• 260 watts Peak Each, 130 watts RMS Each
• 1-3/4" PEI (Polyetherimide) Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99.5 dB

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47
List price $723.74
-15% $614.98

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• 260 watts Peak Each, 130 watts RMS Each
• 1-3/4" PEI (Polyetherimide) Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99.5 dB

Diamond Audio MS8NEO (2-Pairs, 4-Total)

2800W Peak 1400W 8″ MS Neo Series Midrange Coaxial Speakers (2-Pairs)

MS8NEO_2 big
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Diamond Audio MS8NEO (2-Pairs, 4-Total)

2800W Peak 1400W 8″ MS Neo Series Midrange Coaxial Speakers (2-Pairs)

• 700 watts Max Each, 350 watts RMS Each
• Neodymium Cone Tweeters
• Waterproof Black DUPONT™ Kevlar Cone
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.15"

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• 700 watts Max Each, 350 watts RMS Each
• Neodymium Cone Tweeters
• Waterproof Black DUPONT™ Kevlar Cone
• Impedance: 4 ohm
• Sensitivity: 96 dB
• Mounting Depth: 3.15"

Hertz SX 200 NEO (2-Pairs, 4-Total)

1040W Peak (520W RMS) 8" NEO SPL Series 2-way 4-ohms coaxial car speakers (2-Pairs)

SX200NEO_2 big
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Hertz SX 200 NEO (2-Pairs, 4-Total)

1040W Peak (520W RMS) 8" NEO SPL Series 2-way 4-ohms coaxial car speakers (2-Pairs)

• 260 watts Peak Each, 130 watts RMS Each
• 1-3/4" PEI (Polyetherimide) Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99.5 dB

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1
List price $1410.00
-15% $1,199.98

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• 260 watts Peak Each, 130 watts RMS Each
• 1-3/4" PEI (Polyetherimide) Dome Tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99.5 dB

Infinity Reference REF-4032cfx (2-Pairs, 4-Total)

420W Peak (140W RMS) Reference Series 4" 2-Way Car Speakers (2-Pairs)

REF4032CFXAM_2 big
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Infinity Reference REF-4032cfx (2-Pairs, 4-Total)

420W Peak (140W RMS) Reference Series 4" 2-Way Car Speakers (2-Pairs)

• 105 watts Peak Each, 35 watts RMS Each
• 1" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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1
List price $279.90
-43% $159.98

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• 105 watts Peak Each, 35 watts RMS Each
• 1" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Massive Audio MX4 (2-Pairs, 4-Total)

600W Max (120W RMS) 4" MX Series 2-Way Coaxial Car Speakers (2-Pairs)

MA-MX4_2 big
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Massive Audio MX4 (2-Pairs, 4-Total)

600W Max (120W RMS) 4" MX Series 2-Way Coaxial Car Speakers (2-Pairs)

• 150W Max Each, 30W RMS Each
• .5" PEI Tweeter
• Laminated Paper Cone
• 4 ohm Impedance
• Sensitivity: 91.5 dB
• Mounting Depth: 1.63"

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1
List price $99.98
-20% $79.98

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• 150W Max Each, 30W RMS Each
• .5" PEI Tweeter
• Laminated Paper Cone
• 4 ohm Impedance
• Sensitivity: 91.5 dB
• Mounting Depth: 1.63"

Rockford Fosgate Prime R14X2 (Open Box, Great)

120W Peak (60W RMS) 4” Prime Series 2-way 4-ohm Coaxial Car Speaker

R14X2 big
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Rockford Fosgate Prime R14X2 (Open Box, Great)

120W Peak (60W RMS) 4” Prime Series 2-way 4-ohm Coaxial Car Speaker

• 60 watts Peak Each, 30 watts RMS Each
• 1/2" Silk Dome tweeters
• Vacuum polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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14
List price $64.99
-15% $55.24 /pair

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JL Audio C2-400x (Open Box, Great)

100W Peak (70W RMS) 4” Evolution C2 Series 2-way 4-ohm Coaxial Car Speakers

C2-400X big
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JL Audio C2-400x (Open Box, Great)

100W Peak (70W RMS) 4” Evolution C2 Series 2-way 4-ohm Coaxial Car Speakers

• 50 watts Peak Each, 35 watts RMS Each
• 0.75" Silk Dome Tweeters
• 2 speaker grilles included
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 87.5 dB

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Install kits available for most vehicles

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9
List price $189.99
-15% $161.49 /pair

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Limited time!

NVX NSP4

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers

NSP4 big
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NVX NSP4

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.88"

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Install kits available for most vehicles

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25
List price $59.99
-25% $44.99 /pair

In stock

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Used from: $27.99
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NVX VSP4

450W Peak (150W RMS) 4" V-Series 2 Way Coaxial Car Speakers

VSP4 big
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NVX VSP4

450W Peak (150W RMS) 4" V-Series 2 Way Coaxial Car Speakers

• 225 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

2+ offers available
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Install kits available for most vehicles

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17
List price $65.99
-17% $54.99 /pair

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Available Offers (2) for NVX VSP4
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Dads & Grads Sale! Save 15% at Checkout!
List price $65.99
-17% $54.99
$46.74 with coupon | Price details
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2026-06-30 23:59:00
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Used from: $38.49
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DS18 PRO-X8MSE (Pair)

1100W Peak (500W RMS) 8" PRO-X Series Midrange Loudspeakers Sealed Back (Pair)

PROX8MSE_2 big Out of stock
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DS18 PRO-X8MSE (Pair)

1100W Peak (500W RMS) 8" PRO-X Series Midrange Loudspeakers Sealed Back (Pair)

• 550 watts Peak Each, 275 watts RMS Each
• Glossy Red steel basket
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

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List price $135.90
$131.82
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• 550 watts Peak Each, 275 watts RMS Each
• Glossy Red steel basket
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

Rockford Fosgate Punch Pro PPS4-8 (Sold Individually)

250 Peak (125W RMS) 8” Punch Pro Series Pro-Audio 4-ohm Speaker

PPS4-8 big Out of stock
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Rockford Fosgate Punch Pro PPS4-8 (Sold Individually)

250 Peak (125W RMS) 8” Punch Pro Series Pro-Audio 4-ohm Speaker

• 200 watts Peak Each, 100 watts RMS Each
• Fiber-Reinforced High Strength Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

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$99.99
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• 200 watts Peak Each, 100 watts RMS Each
• Fiber-Reinforced High Strength Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

Limited time!

Metra OS-BMW4V4

690W Peak (230W RMS) 4" OptiSound Series Direct Replacement Front Door 2-Way Component 4-ohm Speakers for

OS-BMW4V4 big Out of stock
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Metra OS-BMW4V4

690W Peak (230W RMS) 4" OptiSound Series Direct Replacement Front Door 2-Way Component 4-ohm Speakers for

• 345 watts Peak Each, 115 watts RMS Each
• 1" Silk Dome tweeters
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Direct fit for

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• 345 watts Peak Each, 115 watts RMS Each
• 1" Silk Dome tweeters
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Direct fit for

JBL STAGE3 GEN2 48F (STAGE348F)

800W Peak (100W RMS) 4" Stage3 Gen2 Series 2-Way Coaxial 4-ohm Car Speakers

STAGE348F big Out of stock
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JBL STAGE3 GEN2 48F (STAGE348F)

800W Peak (100W RMS) 4" Stage3 Gen2 Series 2-Way Coaxial 4-ohm Car Speakers

• 400 watts Peak Each, 50 watts RMS Each
• PEI (Polyetherimide) Balanced Dome Tweeters
• Plus One Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Install kits available for most vehicles

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List price $89.95
-22% $69.95 /pair
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• 400 watts Peak Each, 50 watts RMS Each
• PEI (Polyetherimide) Balanced Dome Tweeters
• Plus One Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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    FAQ for Speakers in 2012 128i

    Q: Can I upgrade or change the Speakers in 2012 BMW 128i?

    A: Yes this page includes all the best Speakers that work in your 128i.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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