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1,500W RMS NEP Authority v2 LFS Subwoofer

Regular price $699.99 USD
Regular price $699.99 USD Sale price $699.99 USD
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Shipping calculated at checkout.

Quantity can be Updated in the Cart.

Please bear with us as we prepare the final photos and datasheets. We are working hard to build and publish everything ASAP.

10" / D1

Enclosure Recommendations

Sealed Box Sealed Box
1.0 ft³
Ported Box Ported Box:
1.75 ft³
30.0 Hz

10" / D1

T/S Parameters

- Qes:
- Qms:
- Qts:
- Fs: Hz
- Vas: Liters
- BL: Tesla-meters
- Mms: grams
- Re: Ω
- Sd: cm²
- SPL: dB (1W/1m)
- Xmax: mm
- Power (RMS): 1500W
- Power (MAX): 3000W

10" / D1


Assembled NEP Subwoofer Unit Weight:
40.0 lb
Unit Displacement:
0.108 ft³
NEP Subwoofer Depth Cutout Diameter:
9.25 Inches
Mounting Depth:
8.25 Inches
NEP Dust Cap Large Diameter Molded NEP Dust Cap
NEP Cone and Surround Type Non-Pressed Pulp Cone with Tall Ribbed Surround and Double Stitching
NEP Spider 8.5 Inch, 3 Layer
NEP Audio Voice Coil Type 3 Inch Black Flatwound Aluminum Wire on Aluminum Former.
Subwoofer Basket Ti Basket
Top Plate Thickness Top Plate Thickness:
18.0 mm
NEP Magnet 2 x 7.0 Inch Diameter Y35 Magnets

The All New NEP LFS Subwoofer is built at our facility in Connecticut.


LFS means Low Frequency Series. It's almost like a subwoofer for your subwoofer. Would that be a sub-subwoofer? It is a subwoofer for those who like the lows. We mean, really really low frequencies. It shares the same motor as the NEP Authority v2, but that is where the similarities come to an end. The LFS includes a larger basket, 10 inch suspension, and added moving mass for better low frequency performance.

If you are looking for the windy-est ride in town, as an example, put the 15" in a 6 cubic foot box and tune it to 18Hz. Give it full power at 18Hz. This is what these have been designed for.

WinISD Plot of NEP LFS 15D2

For building boxes and looking at frequency responses, we recommend WinISD. It's quick and easy once you learn how to use it, and best of all, it's free! 

1,500W RMS is a conservative power rating. 


  • Contact Us for Assistance with Boxes
  • Final T/S Parameters will be Published Shortly
  • Contact Us to Customize this Subwoofer
  • Recones are Available in our Store 
  • Build time will be 1 to 2 days in standard configuration, and our automated email system will keep you updated for shipping.
These subwoofers are built to order, and we put a lot of care into each one. We guarantee you will be happy with your NEP purchase.
  • Shipping

    We offer discounted shipping rates which can be calculated during checkout

  • Returns

    You may return an item in new condition with no questions asked for 13 days after confirmed delivery. Please contact us first!

    We encourage you to get in touch with us if something does not seem right, or if you are not getting the results that you expected. Many times we may have a solution for you that can be given over the phone.

  • Warranty

    NEP Audio offers a 2-Year limited warranty on subwoofers. This covers the workmanship of the product. Accidental damage to any part of the speaker, burned out coils, and suspension damage are not covered under this warranty, but these things can be repaired at the customer's discretion. Please contact us at if you have an issue.