DD Audio 615 - (NLA-2020)

615 - Designed & Engineered in the USA


The 600 Series is a great entry point for a higher performance system design that keeps the vehicle as close to stock as possible. These subs will perform like a boss on as little as 300-600 Watts, meaning even multiple woofer systems can be driven with one moderate powered amplifier. This keeps electrical upgrades minimal with less added strain on the vehicle. With a high energy, double stack motor paired with a laminated triple layer poly cotton spider suspension the 600 Series works best with vented and multi-order enclosures.

We believe in quality for the masses. The budget-minded audio enthusiast should be able to get quality car audio that fits into their price range. The REDLINE is our answer to that. These subs are hand-built in our offshore facility with the same high energy design philosophy as our HiDef and Power Tuned subwoofers making it possible to get the performance you demand, at the price you want.



  • EROM surround
  • High-temp, 2.5”, voice coil
  • Triple Layer Deep bass, high excursion spider system
  • Unique glass fiber and natural pulp cone
  • Back plate coil gap venting
  • Extended pole piece
  • DD stamped steel basket (610-612)
  • DD cast basket (608)



  • Driver Size (In): 15
  • Watts RMS: 500 - 800
  • Peak Power: 2400
  • VCD (In): 2.5
  • Impedance: D2 / D4
  • Piston Diameter (In): 13
  • Fs (Hz): 33.6
  • Qms: 4.327
  • Qes: 0.524
  • Qts: 0.468
  • Vas: 82.36
  • Xmech (MM): 60
  • Xmax (MM): 14
  • Frame OD (In): 15 3/16
  • Frame OD w/ Gasket (In): 15 7/16

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