SUMMO64 – 300w Single 4 Ohm


In the ancient Japanese sport of SUMO the rules are simple. When the Gyoji waves his fan; push the other guy out of a big circle. Massive Audio created the “SUMMO” line of subwoofers with the same goal in mind. Summo Series subwoofers play so low and with such a deep center of force that the competition cannot help but to bow out gracefully.

Models include the Summo 15”, 12” and 10” all rated at 3000 watts. Then there is the 600 watt 8” right on down to the crowd pleasing 300 watt 6” subwoofer. Let there be no doubt that with Massive Audio you will be the “King of the Ring.”




  • Die Cast Basket with Black Textured Finish
  • Kevlar Fiber Enhanced Non-Pressed Paper Cone with Textured Paint Finish
  • EROM Foam Surround with Red Stitching
  • 3.0″ 4-Layer Hi-Temp Voice Coil (15″, 12″, 10″)
  • 2.0″ 4-Layer Hi-Temp Voice Coil (8”)
  • 1.5″ 4-Layer Hi-Temp Voice Coil (6”)
  • Fiberglass Woven Dust Cap
  • Triple Stacked 225oz High Energy Magnets (15″, 12″, 10″)
  • Double Stacked 90oz High Energy Magnets (8”)
  • Enhanced Cooling T-yoke Design with Black Anodized Finish
  • Customized Rubber Gasket and Magnet Boot
  • 10 Gauge Power Cable with Direct Lead Connection (15”, 12”, 10”)
  • 16 Gauge Power Cable with Direct Lead Connection (8″, 6”)
  • Triple Black Poly Cotton Spiders with Mirror Image Layout


Size 6″
Peak Watts 300
RMS Watts 150
Cone Non-Pressed Paper
Voice Coil 1.5″ Single 4 Ohm
Surround EROM Foam with Red Stitching
Magnet 48oz Double Stacked
Terminals Heavy Duty Direct Input Wires Connection
Basket Die Cast
Tinsel Leads Heavy Duty Triple
X-Max (2-Way) 9mm
SPL 85dB
Install 120 mm I x 180 mm D
Sealed Box 7,1 L


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