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- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Woofer.
The Genuine Porsche Woofer 99764555100 is an original replacement bass loudspeaker for selected Porsche 911 997, Boxster 987 and Cayman 987C models.
Fits:
Cars With Option Codes:
441 - Prepared For Radio
Diagram Ref No 7
Installed within the vehicle's door audio system, the woofer is responsible for reproducing the lower-frequency portion of music and other audio. It works together with the vehicle's higher-frequency speakers to provide a balanced sound across the audible range.
As the original speaker ages, its cone, suspension, voice coil or electrical connections can deteriorate. Common symptoms include distorted bass, buzzing, rattling, reduced output or complete loss of sound from one side of the vehicle.
Replacing a failed speaker with the correct Genuine Porsche unit helps restore the original audio balance and retains compatibility with the factory speaker mounting, wiring and audio-system specification.
What This Product Does:
The woofer reproduces low-frequency sound from the factory Porsche audio system.
Its main functions include:
- Reproducing bass frequencies.
- Adding depth and weight to music.
- Working with the dashboard and mid-range speakers.
- Maintaining balanced left-to-right audio output.
- Reproducing lower-frequency instruments accurately.
- Providing greater fullness at normal listening levels.
- Maintaining the intended factory sound-system character.
Symptoms Of Wear Or Failure:
Common symptoms include:
- Distorted bass.
- Buzzing noises.
- Rattling.
- Crackling.
- Popping.
- Weak bass response.
- One side sounding quieter than the other.
- No bass from one door.
- Complete loss of sound.
- Intermittent sound.
- Sound cutting in and out.
- Distortion increasing with volume.
- Mechanical scraping noises.
- Speaker vibration sounding uncontrolled.
Why Replacement Matters:
Replacing a worn or failed woofer helps restore:
- Proper bass response.
- Balanced left-to-right sound.
- Clear audio reproduction.
- Reduced buzzing and distortion.
- Correct factory speaker operation.
- Original Porsche audio-system performance.
A defective woofer can affect the entire listening experience even when every other speaker remains functional.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99764555100
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
OE Match Central Dashboard Speaker
Upgrade the sound quality of your classic Porsche without
compromising originality with this OE Match Central Dashboard Speaker. Beautifully
engineered to replicate the dimensions and appearance of the original Blaupunkt
speaker, this premium replacement combines authentic factory looks with
significantly improved acoustic performance.
Fits:
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Designed as a direct replacement, the speaker fits straight into the original mounting holes and retains the classic appearance of your dashboard while benefiting from modern internal components. Installation is quick and straightforward, requiring no dashboard or windscreen removal, making it an ideal upgrade for both restoration projects and regularly driven classic Porsche models.
Featuring a modern high-quality diaphragm, upgraded voice coil and powerful driver magnets, this speaker delivers crisp, balanced sound with a maximum output of 40 Watts, 4 Ohm impedance and a broad frequency response of 60Hz to 18,000Hz, providing a noticeable improvement over the ageing factory speaker.
Installation clips and fixing screws are supplied for a simple factory-style installation.
What Does the Central Dashboard Speaker Do?
The central dashboard speaker is the primary front speaker within the original Porsche audio system. It reproduces music, speech and radio broadcasts while maintaining balanced sound throughout the cabin.
Its primary functions include:
- Delivering clear front audio.
- Improving overall sound quality.
- Maintaining balanced cabin acoustics.
- Preserving the original dashboard appearance.
- Supporting factory radio systems.
- Enhancing the classic Porsche driving experience.
This upgraded OE Match speaker provides modern audio performance while remaining visually faithful to the original Blaupunkt unit.
Why Upgrade the Original Speaker?
After more than fifty years, many original Blaupunkt speakers suffer from deterioration that affects both sound quality and reliability.
Common issues include:
- Perished paper speaker cones.
- Weak or distorted audio.
- Cracked surrounds.
- Failing voice coils.
- Reduced volume.
- Corrosion caused by moisture.
- Heat-related ageing.
- General wear from decades of use.
This upgraded replacement retains the authentic factory
appearance while dramatically improving sound reproduction using modern speaker
technology.
Features and Benefits
When Should the Dashboard Speaker Be Replaced?
Replacement is recommended whenever:
- Audio quality becomes distorted.
- The original speaker no longer functions.
- Sound output is weak or intermittent.
- The speaker cone has deteriorated.
- Restoring the interior.
- Upgrading the factory audio system while maintaining originality.
- Returning a modified vehicle to factory appearance.
Replacing the original speaker restores crisp, clear sound while preserving the authentic character of your classic Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91155203103
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Fits:
Porsche 911 1970-74
Click 'Zoom in' for large parts diagram.
Diagram ref no 29.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91155204803709
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 911 1983-89
Porsche 964 1989-94
Porsche 993 1994-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 37
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91155521700
The product you are viewing cross references to these numbers