Garage
Shop

See all parts that fit your 1971 99

Sundown Audio Z-8 D2 8" (Z8D2) (Like New (Open Box))

4000W Peak (2000W RMS) 8" Z Series Dual 2-ohm Car Subwoofer (SW-Z8D2)

Sundown Audio
Shop all Sundown Audio
highlight-star-icon

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Mount depth: 9.5"
• Sensitivity: 78.77 dB

Learn more about the ls-z8d2-u9

We apologize

This item has been discontinued

Description


Sundown Audio brand icon

Authorized dealer

Item Condition - Like New (Open Box):

This product works and looks like new. It may have been opened for a visual demo or product video. In some cases there may be signs of an attempt at installation like opened packaging or mounting screw holes used, but there is no real sign of use or wear. Includes all original parts, packaging and accessories (or suitable replacement)


Sundown Audio Z-8 D2

Don’t let the size fool you — the Z8 Series 8” subwoofer is built to perform well beyond expectations. With an incredible 2000 watts RMS and 4000 watts peak power handling, this compact beast is ready to drop low, hit hard, and take a beating — all while maintaining control and clarity. Designed for high-output systems with limited space, the Z8 offers the same elite-level engineering found in our larger Z Series drivers, packed into an 8-inch frame.

This sub is built around a black aluminum 2.75" 8-layer voice coil with a massive 30mm Xmax, giving it incredible excursion and power handling for its size. Every component is engineered for airflow and cooling: from the optimized high-velocity pole vent to the cast-aluminum vented frame spacer ring and heavily vented magnetic gap. Add in stitched XL tinsel leads, a Mega-Roll v.2 surround, custom spider packs, and a large aluminum Faraday ring, and you’ve got a sub that’s made for real-world abuse and long-term performance.


Product Details:

  • 8" Dual 2 ohm Z Series Subwoofer
  • Power Handling:
    • Peak: 4000 watts
    • RMS: 2000 watts
  • Polypropylene Cone
  • Mega Roll V2 Surround
  • Heavily vented magnetic gap
  • Spring loaded terminals
  • Optimized high-velocity pole vent
  • Innovative high-velocity cast-aluminum vented frame spacer ring
  • Custom tooled basket for added durability
  • Large aluminum Faraday shorting ring
  • Stitched on XL tinsel leads to prevent fatigue and failure
  • Custom-tooled ultra-linear spider packs
  • 2.75" High Temperature Aluminum Voice coil
  • 4-layer round-winding voice coil
  • Built with proprietary ultra-thick winding method
  • 30 mm Xmax
  • Double Stacked magnet motor structure
  • Resonance Frequency (Fs): 44.198 Hz
  • Sensitivity: 78.77 dB
  • Recommended ported box volume: 1.0 cubic feet
  • Top-mount depth: 9.5"
  • Cutout diameter: 8.2"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Sundown Audio Z-8 D2 8" (Z8D2) (Like New (Open Box)) Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Sundown Audio Z-8 D2 8" (Z8D2) (Like New (Open Box)) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Sundown Audio Z-8 D2 8" (Z8D2) (Like New (Open Box)) Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

Wiring Guide to Wire 4 Sundown Audio Z-8 D2 8" (Z8D2) (Like New (Open Box)) Subwoofers

2 Channel Amp

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
Z Series
Subwoofer Size
8"
Peak Power Handling
4000 watts
RMS Power Handling
2000 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
2 ohm
Voice Coil Material
Aluminum
Voice Coil Diameter
2.75"
Sensitivity
78.77 dB
Xmax (millimeters)
30 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polypropylene
Woofer Surround
Mega Roll V2
Magnet Structure
Double Stacked
Subwoofer Grille
No
Re-Cone Kit Available
No
CTA-2031 Compliant
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Optimum Ported Box Volume
1.0 cubic feet
Top-Mount Depth (Mounting Depth)
9.5"
Cutout Diameter
8.2"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
44.198 Hz
Equivalent Compliance (Vas)
3.922 liters
Total Speaker Q Value (Qts)
0.591
Electrical Q Value (Qes)
0.67
Electrical Resistance of Voice Coil (Re)
3.515 ohm
Mechanical Q Value (Qms)
5.026
What is in the box?
Paperwork
User manual
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SW-Z8D2-3

Weight:

20.00lbs

Internal SKU:

ls-z8d2-u9

Internal Product ID:

229359

Customer Ratings & Reviews


Sundown Audio Z-8 D2 8

5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

1971 Saab 99

2008 Saturn Vue

1998 GMC Jimmy

1987 Mercury Lynx

1994 Ford Explorer

2012 Suzuki Kizashi

2004 GMC Sierra 3500

2005 Honda Pilot

2016 Kia Optima

1994 Mitsubishi Eclipse

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

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.