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Infinity 8" Dual 2 ohm Flex Woofer - Flex 8D (Open Box Complete)

600W Max (150W RMS) 8" 2 ohm Dual Voice Coil Adjustable Depth Subwoofer for Factory Location Upgrade

JBL
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• 600W Max
• 150W RMS
• Polypropylene Cone
• Large Roll Rubber Surround
• Adjustable Height
• Mounts in Factory Locations
• Keeps Factory Look in Vehicles

Learn more about the ls-refflex8d-obc5

We apologize

This item has been discontinued

Description


JBL brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

Item Condition - Open Box, Good Condition:
A Good Open Box used product shows wear from consistent use, but it remains in good condition and works perfectly. It may be marked, have identifying markings on it, or show other signs of previous use or installation. Original packaging, paperwork or protective wrapping may be missing or not included in its entirety. Warranty details are included in the item description or comments.


General Features:

  • 8" Dual 2 ohm FLEX Series Subwoofer
  • Power Handling:
    • Peak: 600 watts
    • RMS: 150 watts
  • Built for installing an upgraded subwoofer in your vehicle's factory location
  • Polypropylene cone
  • Large roll rubber surround
  • Adjustable height: Proprietary sliding flange helps ensure factory look when installing
  • Flange snaps in place
  • Spring-loaded terminals
  • 1-9/16" dual voice coil
  • Top-mount depth: 2.5"
  • Cutout diameter: 7-9/16"
  • Frequency Response: 25 - 500Hz
  • Sensitivity: 84dB
  • Resonance Frequency (Fs): 40.8
  • Also Available as a Single 2 Ohm Model: Infinity REF-FLEX8S
  • Authorized Internet Dealer
  • 30 Day Sonic Electronix Warranty
  • Priced Individually

Check out the Flex 8D Owner's Manual

PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Infinity 8" Dual 2 ohm Flex Woofer - Flex 8D (Open Box Complete) Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Infinity 8" Dual 2 ohm Flex Woofer - Flex 8D (Open Box Complete) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Infinity 8" Dual 2 ohm Flex Woofer - Flex 8D (Open Box Complete) Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

Wiring Guide to Wire 4 Infinity 8" Dual 2 ohm Flex Woofer - Flex 8D (Open Box Complete) Subwoofers

2 Channel Amp

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
REF-FLEX
Subwoofer Size
8"
Peak Power Handling
600 watts
RMS Power Handling
150 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
2 ohm
Frequency Response
25 - 500 Hz
Sensitivity
84 dB
Xmax (millimeters)
3.1 mm
Subwoofer Design
Round / Circle
Main Cone Color
Dark Gray
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Subwoofer Grille
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Sealed
Optimum Sealed Box Volume
.93 cubic feet
Optimum Ported Box Volume
.9 cubic feet
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
40.8 Hz
Equivalent Compliance (Vas)
12.228 liters
Total Speaker Q Value (Qts)
1.363
Electrical Q Value (Qes)
1.704
Electrical Resistance of Voice Coil (Re)
1.89 ohm
Mechanical Q Value (Qms)
6.794
What is in the box?
Paperwork
User manual
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
30 days
Labor Warranty Duration
30 days
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

JBL

Model Number:

REF-FLEX8D-2

Weight:

8.00lbs

Internal SKU:

ls-refflex8d-obc5

Internal Product ID:

182691

Customer Ratings & Reviews


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

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  • 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.