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RTJ 18 Dual Subwoofer

Dual Modular Subwoofers

Key Features

  • 2x 18″ Sub Module
  • 2x 2400w External Amplifier
  • 10hz-200hz (In Room)
  • 12 amp @ 120 volts (¼ Power)





Improve dynamics and reduce low-frequency distortion with two (2) subwoofers. Purchase these outstanding subwoofers individually or in quantities of 2 and 4. In this dual model, you get two (2) 18 series subs which are passive and come with two (2) separate rack mountable amplifiers. Once again,  JTR Speakers does not disappoint with the RTJ Audio line developed strategically for an ultimate home theater experience. In short, any speaker in this line is of the finest fidelity and delivers maximum dynamics.

  • Small and Modular: The floor standing speakers and subs were specifically designed to have the same footprint. So, at 15" they are stackable and also shallow enough to maximize your space.
  • Ultimate Soundscape: These high quality speakers produce monumental and majestic sound.
  • Impressive Construction and Finishing: All cabinets are made to order in the U.S.A constructed in Baltic Birch and finished in a striking non-reflective black textured paint.

This product is Made to Order in the U.S.A and will require some extra lead time. Contact us today and we will help you create your very own RTJ Audio system.

Product Highlights

Dimensions and Warranty

  • 22.5" x 22.5" x 15" (Each Module)
  • Warranty: 5 Year Manufacturer Defect
  • Our 30-day money-back guarantee
  • MFR # 18Sub Dual

Additional information


RTJ Audio

Frequency Response

10hz – 200hz (In Room)

Low Frequency Point


Dimensions (H x L x P)

22.5" x 22.5" x 15" each


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