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1979 Porsche 928

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Subwoofers and enclosures, specifically designed for your 1979 928, as well as universal fit solutions

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

Subwoofers and Boxes for 1979 Porsche 928

A subwoofer that works with, or is designed for, your 1979 Porsche 928 will add bass, clarity and depth to your music and system. A quality subwoofer will give realism and an overall rich, complete sound that you otherwise would not get with a factory car sound system.

Subwoofer bass packages

Universal Subwoofer Bass Packages

These packages include an amp, sub(s), an enclosure and amplifier wiring. They should fit your Porsche 928, but verify your trunk/rear vehicle area.

Universal Subwoofers

Universal Subwoofers

These sub(s) are perfect for adding to a empty box or custom built enclosure. They should work with your Porsche 928, but verify your trunk/rear vehicle area.

Universal-fit loaded and powered sub boxes

Universal-fit Loaded Subwoofer Boxes

These boxes include sub(s) and some include an amp. They should fit your Porsche 928, but verify your trunk/rear vehicle area.

Universal-fit empty unloaded sub boxes

Empty Universal-fit Sub Box Enclosures

These boxes are ready for you to add a sub and amp. They should fit your ride, but verify your trunk/rear vehicle area.

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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.
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.
Punch Series (72)
CompRT Series (43)
S Series (43)
W3 v3 Series (40)
CompR Series (38)
CompC Series (36)
SA Series (35)
Prime Series (30)
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E-Series (29)
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Z Series (18)
N-Series (17)
Reference Series (16)
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Polk Audio MM1 Series (2)
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W0 v2 Series (1)
XD Series (1)
XO 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.
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.
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.
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.

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.
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.
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.

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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Sundown Audio SA-8 v.3 D2 8" (SA8V3D2)

1200W Peak (600W RMS) 8" SA Series Dual 2-ohm Car Subwoofer (SW-SAV38D2)

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Sundown Audio SA-8 v.3 D2 8" (SA8V3D2)

1200W Peak (600W RMS) 8" SA Series Dual 2-ohm Car Subwoofer (SW-SAV38D2)

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Treated Paper Cone
• Treated Foam Surround
• Mount depth: 6.625"
• Sensitivity: 82.79 dB

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MTX SLH15X2

Empty Dual 15" Ported Enclosure

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MTX SLH15X2

Empty Dual 15" Ported Enclosure

• 15" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.02 cubic feet
• Mounting hardware included

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NVX - Worth the Envy - Direct to Consumer Car Audio

Kicker Comp 10 (43C104)

300W Peak (150W RMS) 10" Comp Series Single 4-ohm Car Subwoofer

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Kicker Comp 10 (43C104)

300W Peak (150W RMS) 10" Comp Series Single 4-ohm Car Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Single 4 ohm
• SoloKon Polypropylene Cone
• Ribbed Poly-Foam Surround
• Mount depth: 5 1/16"
• Sensitivity: 86.2 dB

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Atrend 12JLX3SV

Empty Single 12" Vented Enclosure for JL Audio WX-W3 Series Subwoofers

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Atrend 12JLX3SV

Empty Single 12" Vented Enclosure for JL Audio WX-W3 Series Subwoofers

• 12" Single Ported Subwoofer Enclosure
• Fits JL Audio WX-W3 series subwoofers
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium charcoal carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 1.5 cubic feet

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NVX ESW124

500W Peak (250W RMS) 12" E-Series Single 4-ohm Car Subwoofer

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NVX ESW124

500W Peak (250W RMS) 12" 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: 5.56"
• Sensitivity: 87 dB

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Alpine W10S4

750W Peak (250W RMS) 10" Bass Series Single 4-ohm Car Subwoofer

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Alpine W10S4

750W Peak (250W RMS) 10" Bass Series Single 4-ohm Car Subwoofer

• Peak Power: 750 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Poly-Foam Surround
• Mount depth: 5-1/16"
• Sensitivity: 86.6 dB

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Deaf Bonce Machete ML-10R D2

1000W Peak (500W RMS) 10” Machete Series Dual 2-ohm Car Subwoofer

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Deaf Bonce Machete ML-10R D2

1000W Peak (500W RMS) 10” Machete Series Dual 2-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 2 ohm
• Mount depth: 4.91"
• Sensitivity: 86.00 dB

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Rockford Fosgate Power T1 T1S2-10S

1000W Peak (500W RMS) 10" T1 Slim Series Single 2-ohm Shallow Subwoofer for Sealed Enclosures

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Rockford Fosgate Power T1 T1S2-10S

1000W Peak (500W RMS) 10" T1 Slim Series Single 2-ohm Shallow Subwoofer for Sealed Enclosures

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Single 2 ohm
• Optimized for sealed enclosures
• Carbon Fiber/PMI/Glass Fiber Cone
• Synthetic organic polymer Surround
• Mount depth: 3.01"
• Sensitivity: 82 dB

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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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Kicker L7R122 (45L7R122)

1200W Peak (600W RMS) 12” Solo-Baric L7R Series Dual 2-ohm Subwoofer

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Kicker L7R122 (45L7R122)

1200W Peak (600W RMS) 12” Solo-Baric L7R Series Dual 2-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 2 ohm
• Injection-molded SoloKon Cone
• Ribbed Santoprene Surround
• Mount depth: 6 7/8"
• Sensitivity: 86.7 dB

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Rockford Fosgate Power T2 T2S1-13

4000W Peak (2000W RMS) 13" Power Series Single 1-ohm Car Subwoofer

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Rockford Fosgate Power T2 T2S1-13

4000W Peak (2000W RMS) 13" Power Series Single 1-ohm Car Subwoofer

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Triple 1 ohm
• Glass Fiber Cone
• Injection molded foam Surround
• Mount depth: 9.7"
• Sensitivity: 90 dB

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Cerwin-Vega VS12SH

600W Peak (300W RMS) Loaded Single 12" Passive Slim Spare Tire Enclosure

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Cerwin-Vega VS12SH

600W Peak (300W RMS) Loaded Single 12" Passive Slim Spare Tire Enclosure

• Sealed slim enclosure with 1 11" VS Series Subwoofer
• 300 watts RMS (600 watts Peak)
• Final Impedance: 4-ohm

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Deaf Bonce Apocalypse DB-4515R D2

9000W Peak (4500W RMS) 15” Apocalypse Series Dual 2-ohm Car Subwoofer

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Deaf Bonce Apocalypse DB-4515R D2

9000W Peak (4500W RMS) 15” Apocalypse Series Dual 2-ohm Car Subwoofer

• Peak Power: 9000 watts
• RMS Power: 4500 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Cone
• Foam Surround
• Mount depth: 11.95"
• Sensitivity: 87.80 dB

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JL Audio MicroSub CP208LG-W3v3

500W RMS Loaded Dual 8" Vented Enclosure

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JL Audio MicroSub CP208LG-W3v3

500W RMS Loaded Dual 8" Vented Enclosure

• Ported enclosure with 2 8" MicroSub Series Subwoofer
• 500 watts RMS
• Final Impedance: 2-ohm
• Dimensions: 35.5" L x 11" H x 5.125" W

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Alpine SBT-S10V

1000W Peak (350W RMS) Loaded Single 10" Vented Truck Enclosure

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Alpine SBT-S10V

1000W Peak (350W RMS) Loaded Single 10" Vented Truck Enclosure

• Ported truck enclosure with 1 10" SWT Series Subwoofer
• 350 watts RMS (1000 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 21 7/8" L x 15 1/2" H x 7 1/2" W x 4 1/4" W2

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JBL Stage 82 (JBLSUBST82AM)

800W Peak (200W RMS) 8" Stage Series Single 4-ohm Car Subwoofer

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JBL Stage 82 (JBLSUBST82AM)

800W Peak (200W RMS) 8" Stage Series Single 4-ohm Car Subwoofer

• Peak Power: 800 watts
• RMS Power: 200 watts
• Impedance: Single 4 ohm
• Polypropylene Subwoofer Cone material
• Rubber Subwoofer Surround material
• Mount depth: 3-15/16"
• Sensitivity: 88 dB

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Alpine S2-W8D4

900W Peak (300W RMS) 8" S-Series Dual 4-ohm Car Subwoofer

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Alpine S2-W8D4

900W Peak (300W RMS) 8" S-Series Dual 4-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Polypropylene Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 3.71"
• Sensitivity: 82.7 dB

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Sundown Audio U-12 v.2 D2 12" (U12V2D2)

4000W Peak (2000W RMS) 12" U Series Dual 2-ohm Car Subwoofer (SW-UV212D2)

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Sundown Audio U-12 v.2 D2 12" (U12V2D2)

4000W Peak (2000W RMS) 12" U Series Dual 2-ohm Car Subwoofer (SW-UV212D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Double-Stitched Surround
• Mount depth: 8.43"
• Sensitivity: 85.19 dB

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Kicker L7S104 (44L7S104)

1200W Peak (600W RMS) 10” Solo-Baric L7S Series Dual 4-ohm Subwoofer

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Kicker L7S104 (44L7S104)

1200W Peak (600W RMS) 10” Solo-Baric L7S Series Dual 4-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Injection Molded Polypropylene Cone
• Ribbed Santoprene Surround
• Mount depth: 6-1/4"
• Sensitivity: 85.87 dB

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Deaf Bonce Machete ML-12R D4

1000W Peak (500W RMS) 12” Machete Series Dual 4-ohm Car Subwoofer

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Deaf Bonce Machete ML-12R D4

1000W Peak (500W RMS) 12” Machete Series Dual 4-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 5.3"
• Sensitivity: 88.0 dB

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    FAQ for Subwoofer and Sub Box Upgrades in 1979 928

    Q: Can I upgrade or change the Subwoofer and Sub Box Upgrades in 1979 Porsche 928?

    A: Yes this page includes all the best Subwoofer and Sub Box Upgrades that work in your 928.

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