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2004 Porsche Boxster

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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 Independance Day Sale

Speakers & Speaker Installation for 2004 Porsche Boxster

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

Dash Corner

Dash Corner Speakers

Speakers for your dash corner

Front Door Panel Speakers

Front Door Speakers

Speakers for your front door panels

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Speakers with sound damping,
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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.
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Rockford Fosgate Power T152 with Sound Damping

240W Peak (120W RMS) 5.25" Power Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

T152_SDBSK2 big
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Rockford Fosgate Power T152 with Sound Damping

240W Peak (120W RMS) 5.25" Power Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome offset cantilever coaxial mounted tweeters
• Polypropylene-Carbon Fiber Hybrid cone material
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

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70
List price $238.73
$234.98

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• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome offset cantilever coaxial mounted tweeters
• Polypropylene-Carbon Fiber Hybrid cone material
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

Alpine S2-S40C with Sound Damping

280W Peak (90W RMS) 4" Next-Generation S-Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

S2S40C_SDSK2 big
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Alpine S2-S40C with Sound Damping

280W Peak (90W RMS) 4" Next-Generation S-Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

• 140 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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49
List price $198.74
-25% $149.95

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• 140 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Infinity Primus 503CF (PR503CF) with Sound Damping

300W Peak (100W RMS) 5.25” Primus Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

PR503CF_SDSK2 big
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Infinity Primus 503CF (PR503CF) with Sound Damping

300W Peak (100W RMS) 5.25” Primus Series 2-Way Component Speaker System + NVX SDSK2 Sound Damping

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

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49
List price $168.69
-20% $134.94

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• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

JBL GT7-5C with Sound Damping

270W Peak (90W RMS) 5.25" GT7-Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

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JBL GT7-5C with Sound Damping

270W Peak (90W RMS) 5.25" GT7-Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 135 watts Peak Each, 45 watts RMS Each
• 1-3/16" Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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51
List price $168.69
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• 135 watts Peak Each, 45 watts RMS Each
• 1-3/16" Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Cerwin Vega XED42 with Sound Damping

500W Peak (40W RMS) 4" XED Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

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Cerwin Vega XED42 with Sound Damping

500W Peak (40W RMS) 4" XED Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 250 watts Peak Each, 20 watts RMS Each
• 1" Metallic Dome Tweeters
• Curvilinear polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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52
List price $66.73
-18% $54.98

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• 250 watts Peak Each, 20 watts RMS Each
• 1" Metallic Dome Tweeters
• Curvilinear polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Diamond Audio DMD52 with Sound Damping

160W Peak (80W RMS) 5.25" DMD Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

DMD52_SDSK2 big
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Diamond Audio DMD52 with Sound Damping

160W Peak (80W RMS) 5.25" DMD Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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48
List price $138.73
-10% $124.98

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• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

Hertz K 130 with Sound Damping

440W Peak (110W RMS) 5.25” Uno Series Component Speakers + NVX SDSK2 Sound Damping

K130_SDSK2 big
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Hertz K 130 with Sound Damping

440W Peak (110W RMS) 5.25” Uno Series Component Speakers + NVX SDSK2 Sound Damping

• 110 Watts Max Each, 30 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

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49
List price $168.74
-32% $114.98

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• 110 Watts Max Each, 30 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

JBL Club 422F (SPKCB422FAM) with Sound Damping

210W Peak (70W RMS) 4" Club Series 2-way 3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

CLUB422FAM_SDBSK2 big
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JBL Club 422F (SPKCB422FAM) with Sound Damping

210W Peak (70W RMS) 4" Club Series 2-way 3-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 105 watts Peak Each, 35 watts RMS Each
• 3/4" Edge-driven Silk Dome Tweeters
• UV-Treated Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 90 dB

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48
List price $148.69
-29% $104.94

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• 105 watts Peak Each, 35 watts RMS Each
• 3/4" Edge-driven Silk Dome Tweeters
• UV-Treated Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 90 dB

JVC CS-DR521 with Sound Damping

520W Peak (80W RMS) 5.25'' DRVN Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

CSDR521_SDBSK2 big
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JVC CS-DR521 with Sound Damping

520W Peak (80W RMS) 5.25'' DRVN Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 260 watts Peak Each, 40 watts RMS Each
• 1" Polyetherimide Balanced Dome tweeters with small cover
• Robust and lightweight Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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48
List price $137.74
-17% $113.99

In stock

Only 2 Left!

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• 260 watts Peak Each, 40 watts RMS Each
• 1" Polyetherimide Balanced Dome tweeters with small cover
• Robust and lightweight Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Limited time!

NVX NSP4 with Sound Damping

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

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NVX NSP4 with Sound Damping

300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 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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73
List price $78.73
-30% $55.48

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• 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"

Limited time!

NVX VSP525 with Sound Damping

480W Peak (160W RMS) 5.25" V-Series 2-Way Coaxial Speakers with 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

VSP525_SDBSK2 big
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NVX VSP525 with Sound Damping

480W Peak (160W RMS) 5.25" V-Series 2-Way Coaxial Speakers with 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.16"

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71
List price $114.73
-21% $90.48

In stock

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• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.16"

Limited time!

NVX VSP525KIT with Sound Damping

750W Peak (250W RMS) 5.25" V-Series 2-Way Component Speaker System with 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

VSP525KIT_SDBSK2 big
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NVX VSP525KIT with Sound Damping

750W Peak (250W RMS) 5.25" V-Series 2-Way Component Speaker System with 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

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75
List price $138.73
-20% $110.48

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• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

Rockford Fosgate Punch P142 with Sound Damping

120W Peak (60W RMS) 4" Punch Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

09-P142_SDBSK2 big
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Rockford Fosgate Punch P142 with Sound Damping

120W Peak (60W RMS) 4" Punch Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded mineral-filled polypropylene cone material with VAST technology
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

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59
List price $128.73
$124.98

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• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded mineral-filled polypropylene cone material with VAST technology
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

MB Quart FKB 110 (FKB110) with Sound Damping

140W Peak (70W RMS) 4" Quart Formula Series 2-way 4-ohm Coaxial Car Speakers. + NVX SDBSK2 Premium Sound Damping

FKB110_SDBSK2 big
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MB Quart FKB 110 (FKB110) with Sound Damping

140W Peak (70W RMS) 4" Quart Formula Series 2-way 4-ohm Coaxial Car Speakers. + NVX SDBSK2 Premium Sound Damping

• 70 watts Peak Each, 35 watts RMS Each
• 1" Aluminum Dome Tweeters
• Lightweight thermal-formed polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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48
List price $65.73
-32% $44.98

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• 70 watts Peak Each, 35 watts RMS Each
• 1" Aluminum Dome Tweeters
• Lightweight thermal-formed polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

MB Quart FKB 113 (FKB113) with Sound Damping

180W Peak (90W RMS) 5.25" Formula Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

FKB113_SDBSK2 big
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MB Quart FKB 113 (FKB113) with Sound Damping

180W Peak (90W RMS) 5.25" Formula Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 90 watts Peak Each, 45 watts RMS Each
• 1" Aluminum Dome tweeters
• Thermoformed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $88.73
-49% $44.98

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• 90 watts Peak Each, 45 watts RMS Each
• 1" Aluminum Dome tweeters
• Thermoformed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Hertz DSK130.3 with Sound Damping

120W Peak (60W RMS) 5.25” Dieci Series Component Speakers + NVX SDSK2 Sound Damping

DSK1303_SDSK2 big
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Hertz DSK130.3 with Sound Damping

120W Peak (60W RMS) 5.25” Dieci Series Component Speakers + NVX SDSK2 Sound Damping

• 60 Watts Max Each, 30 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

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List price $248.74
-14% $214.98

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• 60 Watts Max Each, 30 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

Infinity Kappa 53XF (INFSPKKA53XFAM) with Sound Damping

360W Peak (120W RMS) 5.25" Kappa Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

KAPPA53XF_SDSK2 big
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Infinity Kappa 53XF (INFSPKKA53XFAM) with Sound Damping

360W Peak (120W RMS) 5.25" Kappa Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 180 watts Peak Each, 60 watts RMS Each
• 1" Silk Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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List price $268.69
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• 180 watts Peak Each, 60 watts RMS Each
• 1" Silk Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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MTX Audio THUNDER51 with Sound Damping

360W Peak (180W RMS) 5.25" Thunder Series 2-way 4-ohm Component Speakers System + NVX SDBSK2 Premium Sound Damping

THUNDER51_SDBSK2 big
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MTX Audio THUNDER51 with Sound Damping

360W Peak (180W RMS) 5.25" Thunder Series 2-way 4-ohm Component Speakers System + NVX SDBSK2 Premium Sound Damping

• 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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49
List price $258.69
-17% $214.95

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

AudioControl PNW-4 with Sound Damping

150W Peak (50W RMS) 4″ PNW Series High-fidelity 2-way 3-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

PNW4_SDSK2 big
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AudioControl PNW-4 with Sound Damping

150W Peak (50W RMS) 4″ PNW Series High-fidelity 2-way 3-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

• 75 watts Peak Each, 25 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm

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49
List price $207.74
-11% $183.99

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• 75 watts Peak Each, 25 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm

Hertz DCX100.3 with Sound Damping

120W Peak (60W RMS) 4" Dieci Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

DCX1003_SDSK2 big
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Hertz DCX100.3 with Sound Damping

120W Peak (60W RMS) 4" Dieci Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 30 Watts Max Each, 15 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI dome tweeter
• 4 Ohm Impedance
• Sensitivity: 92 dB
• Mounting Depth: 1-3/4"

Save 15% Off Package Deals at Checkout!
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List price $168.74
-14% $144.98

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• 30 Watts Max Each, 15 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI dome tweeter
• 4 Ohm Impedance
• Sensitivity: 92 dB
• Mounting Depth: 1-3/4"

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    Shop your 2004 Boxster
    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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