JL Audio

JL Audio Subwoofer 8" M8IB5-CG-TB Titanium classic grille

OEM # JL91371
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08.17.0267
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AED 827.00
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JL Audio

Subwoofer 8" M8IB5-CG-TB Titanium classic grille

Description

With appropriate system setup, the addition of a subwoofer allows your smaller main speakers to be free of the burden of reproducing low frequencies. This allows your whole system to play louder and to sound cleaner at all listening levels.
Purpose-engineered and built for real marine duty, the M-Series infinite-baffle woofers are designed to operate without a dedicated enclosure. Long excursion capability and rugged suspension systems help produce deep, powerful bass response that will transform your boat’s audio system.
The M8IB5 is best used with amplifier power in the 50W
- 200W range and is optimized to operate with just a large volume of air behind it (at least 1.5 cu. ft. / 42.5 l). If you prefer to use a dedicated  nclosure, refer to one of the suggested designs located in the Specifications section for optimum performance. Like all JL Audio marine speakers, this driver is built to withstand a real saltwater marine environment and deliver years of listening enjoyment.

 

Nominal Diameter 8.0 in / 200 mm
Overall Diameter (A) 8.8 in / 224 mm
Bolt Hole Circle Diameter (B) 7.97 in / 202 mm
Motor Outer Diameter (C) 5.50 in / 140 mm
Frontal Grilles Protrusion* (D) 1.45 in / 37 mm
Mounting Hole Diameter (E) 7.375 in / 187 mm
Mounting Depth (F) 5.18 in / 132 mm
Driver Displacement 0.032 cu ft / 0.91 L
Net Weight 6.82 lb / 3.094 kg
Continuous power handling (RMS) 250 W
Nominal impedance (Znom) 4 Ω
Parameters
Free air resonance (Fs)  53.37 Hz
Electrical “Q” (Qes) 0.833
Mechanical “Q” (Qms) 11.827
Total speaker “Q” (Qts) 0.778
Equivalent compliance (Vas) 0.57 cu ft / 16.00 L
One-way linear excursion (Xmax)*  0.53 in / 14 mm
Reference efficiency (no) 0.28%
Efficiency (1 W / 1 m)**  86.7 dB SPL
Effective piston area (Sd)  35.15 sq in / 0.0227 sq m
DC resistance (Re) 2.958 Ω

* Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied.
** Efficiency (1 W / 1 m) is not an accurate indicator of a subwoofer’s output capability and should not be used as a comparison to other subwoofers to determine which one is “louder”.

Enclosure Specifications
Minimum sealed enclosure volume 2.0 cu ft / 56.6 L (or larger)
Optimum sealed enclosure volume 2.5 cu ft / 70.8 L
Infinite baffle use Yes
  • Physical Specification

     

    Nominal Diameter 8.0 in / 200 mm
    Overall Diameter (A) 8.8 in / 224 mm
    Bolt Hole Circle Diameter (B) 7.97 in / 202 mm
    Motor Outer Diameter (C) 5.50 in / 140 mm
    Frontal Grilles Protrusion* (D) 1.45 in / 37 mm
    Mounting Hole Diameter (E) 7.375 in / 187 mm
    Mounting Depth (F) 5.18 in / 132 mm
    Driver Displacement 0.032 cu ft / 0.91 L
    Net Weight 6.82 lb / 3.094 kg

  • Technical Specification

    Continuous power handling (RMS) 250 W
    Nominal impedance (Znom) 4 Ω
    Parameters
    Free air resonance (Fs)  53.37 Hz
    Electrical “Q” (Qes) 0.833
    Mechanical “Q” (Qms) 11.827
    Total speaker “Q” (Qts) 0.778
    Equivalent compliance (Vas) 0.57 cu ft / 16.00 L
    One-way linear excursion (Xmax)*  0.53 in / 14 mm
    Reference efficiency (no) 0.28%
    Efficiency (1 W / 1 m)**  86.7 dB SPL
    Effective piston area (Sd)  35.15 sq in / 0.0227 sq m
    DC resistance (Re) 2.958 Ω

    * Xmax specifications are derived via one-way voice coil overhang method with no correction factors applied.
    ** Efficiency (1 W / 1 m) is not an accurate indicator of a subwoofer’s output capability and should not be used as a comparison to other subwoofers to determine which one is “louder”.

    Enclosure Specifications
    Minimum sealed enclosure volume 2.0 cu ft / 56.6 L (or larger)
    Optimum sealed enclosure volume 2.5 cu ft / 70.8 L
    Infinite baffle use Yes

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Product Options

Product OEM EEPN Availability Price Qty
JL91370
08.17.0265
AED 798.00
-
+
JL91372
08.17.0266
AED 798.00
-
+
JL91371
08.17.0267
AED 827.00
-
+

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