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Infinity Reference-Flex8

600W Max (150W RMS) 8" Single 2 ohm Adjustable Depth Car Subwoofer for Factory Location Upgrades

Infinity
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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 refflex8s

We apologize

This item has been discontinued


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Description


Infinity brand icon

Authorized dealer


General Features:

  • 8" Single Voice Coil 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" single voice coil
  • Top-mount depth: 2.5"
  • Cutout diameter: 7-9/16"
  • Frequency Response: 25 - 500Hz
  • Sensitivity: 83dB
  • Resonance Frequency (Fs): 41.3
  • Also Available as a Dual 2 Ohm Model: JBL REF-FLEX8D
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • Priced Individually

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Infinity Reference-Flex8 Subwoofer

Mono Amp

Wiring Guide to Wire 2 Infinity Reference-Flex8 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 3 Infinity Reference-Flex8 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Infinity Reference-Flex8 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
REF-FLEX
Subwoofer Size
8"
Peak Power Handling
600 watts
RMS Power Handling
150 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
2 ohm
Voice Coil Diameter
1-9/16"
Frequency Response
25 - 500 Hz
Sensitivity
84 dB
Xmax (millimeters)
4.65 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polypropylene
Woofer Surround
Rubber
Magnet Type
Ferrite
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Sealed
Optimum Sealed Box Volume
.4 cubic feet
Optimum Ported Box Volume
1.08 cubic feet
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
41.3 Hz
Equivalent Compliance (Vas)
13.694 liters
Total Speaker Q Value (Qts)
1.101
Electrical Q Value (Qes)
1.345
Electrical Resistance of Voice Coil (Re)
2.29 ohm
Mechanical Q Value (Qms)
6.071
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:

Reference-Flex8

Weight:

8.00lbs

Internal SKU:

refflex8s

Internal Product ID:

143597

Customer Ratings & Reviews


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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.