Marathon RMS-15SW

800W, 15" High-Power Active Subwoofer System with Built-in Power Protection Circuit

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Customer Testimonial

SONIC has the best prices, and fast shipping. This was my second purchase. This time I got new Front & Rear speakers for my truck. I installed them the day they arrived and they sound great. No need to ever go anywhere else looking for equiptment.

- Scooby from Phoenix, AZ

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The New High End Active Line of Subwoofers!

Compact and Active RMS Subwoofers the RMS-15SW ™ comes with proprietary amplifier capabilities. Phenomenal 800 watts of amplifier power with built-in power limit protection circuit to complement the high efficient chamber design. Precised woofer technology and ultra-high chamber design that gives faster and tighter bass response.

Superior features such as adjustable 80 to 200Hz low pass filter, Off/80Hz/125Hz high pass filter, optional balanced and unbalanced signal input and phase reverted switch. Marathon® RMS Series, Moving forward and leading the powered speakers technology.

Product Features

  • Compact 15" Powerful Active Subwoofer System
  • Amplifier Power: 800 Watt
  • High Pass Filter: OFF/80Hz/125Hz
  • Low Pass Filter: 80 - 200Hz
  • Precision woofer technology
  • Efficient and tight bass response
  • Built-in power protection circuit
  • Balanced and unbalanced signal input
  • Dimensions: 31"W x 20" D x 26" H
  • 1-year Manufacturer's warranty
Subwoofer Specifications
Power Configuration Active
Number of Drivers 1
Driver Size 15"
Inputs XLR
Outputs XLR
Powered Subwoofer Specifications
Continuous Power 800 watts
Controls High-Pass Filter (HPF)
Low-Pass Filter (LPF)
Case Specifications
Mounting Options Floor Standing
Convenience Features Built-in Handles
Integrated Mounting Pole-Cup
Enclosure Material Solid Plywood with Durable Finish
Grille Yes
Height 26"
Width 31"
Depth 20"
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Manufacturer
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Product Summary

Manufacturer: Marathon
Model number: RMS-15SW
UPC: 111311007296
Weight: 70.00 lbs
Internal SKU: marms15sw
Internal product ID: 31214