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Flatlyne Series Subwoofer

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Incriminator Audio has been known for years to be a company dedicated to SPL. It is no secret that IA products have won numerous world records in the SPL lanes, and are all designed to be able to handle the extreme stress an SPL vehicle places on a product. The goal of the IA Flatlyne subwoofer was to crush all the rumors of IA only producing SPL products. The Flatlyne is an under-hung sound quality based subwoofer that will reproduce low octave tones with unmatched accuracy.


  • 8 Spoke Black Cast Basket
  • 3" 8 Layer Round Copper Voice Coil
  • Dual Black Progressive Spiders with Woven Tinsel Leads
  • Injected Pulp Matrix Fiber Reinforced Cone
  • Dual Layer Foam Surround
  • 8" 100 Oz Single Magnet with an Underhung Topology
  • 448 Oz / 28 Pound Motor Structure and Black Nickel Finish
  • Interlocking Aluminum Spider Spacer Assembly
  • CILD² - Center Interlocking Dustcap
  • ADC - Air Driven Cooling
  • Nickel Plated Push Terminals
  • Wrap Around Rubber Gasket
  • 600 Watt RMS Rated
  • DVC 2 ohm or 4 ohm


12 Inch 15 Inch 18 Inch
28 Hz N/A N/A
8Ω Series 8Ω Series 8Ω Series
3.88 4.58 N/A
.55 .65 N/A
.43 .51 N/A
224 g 296 g N/A
0.14 mm/N 0.14 mm/N 0.14 mm/N
480 cm² 810 cm² 1210 cm²
36.9 L 118 L N/A
83.7 db 85.8 db N/A
14.6 14.6 14.6
18 mm 18 mm 18 mm
Sub Diameter
12.37" 15.50" 18.50"
11.12" 14.12" 16.87"
6.75" 7.50" 8.87"
.13 Cu. Ft. .15 Cu. Ft. .18 Cu. Ft.
600 RMS 600 RMS 600 RMS


Incriminator Audio, LLC
7751 Hwy 72
Killen, AL 35645

  • 1.256.417.6658
  • This email address is being protected from spambots. You need JavaScript enabled to view it.

Hours of Operation

Monday 9am - 5pm CST
Tuesday 9am - 5pm CST
Wednesday 9am - 5pm CST
Thurday 9am - 5pm CST
Friday 9am - 5pm CST
Saturday closed
Sunday closed

Why Choose IA?

We are enthusiasts true and true, we live, eat, and breathe car audio. That passion spills over into the products that we produce and the end results are products that are Over built, Over Deliver, and Under Priced. More...

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