SKU: 17999925538

CU-6.5 | 6.5" 350 Watt RMS Subwoofer

Sale price$112.50 Regular price$125.00
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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For Your Every Summer RSVP, with Code: SUMMER15

Description

CU-6.5 | 6.5" 350 Watt RMS SubwooferThe Wolfram Audio Cu series are high performance, cost effective, competition grade subwoofers that stand out from the crowd in every aspect. The Cu series features a double stacked 180oz ferrite motor, 2" high temperature copper voice coil, and an advanced cooling design. Cu is the chemical symbol for Copper an inexpensive, yet precious metal. In other words, the Cu series is a fantastic option for daily bangin' without breaking the bank!

The Wolfram Audio Cu series are high performance, cost effective, competition grade subwoofers that stand out from the crowd in every aspect. The Cu series features a double stacked 180oz ferrite motor, 2" high temperature copper voice coil, and an advanced cooling design. 

Cu is the chemical symbol for Copper - an inexpensive, yet precious metal. In other words, the Cu series is a fantastic option for daily bangin' without breaking the bank!

Specifications:

  • Wolfram Audio Cu-6.5
  • Dual 2 or 4 Ohm Voice Coil Configuration
  • Peak Power : 700 Watts
  • RMS Power : 350 Watts
  • Competition Grade Pressed Paper Cone
  • Stitched High Roll Foam Surround
  • 180oz Stacked Magnet
  • 2 layer PC spider
  • 2" Copper Voice Coil
  • 8 Gauge Push Terminals

 

  • Sensitivity : 82 dB
  • Fs : 49.5 Hz
  • Re : 2.0 or 4.0 Ohms
  • Qms : 3
  • Qes :  0.36
  • Qts :  0.32
  • Nref :  0.1%
  • Bl :  17.5
  • Vas :  3.1 L
  • Mms :  90.7 gr
  • Xmax :  12mm (One-Way)

Enclosure Recommendations:

Sealed: 0.15 ft³ 

Ported: 0.2 - 0.4 ft³ Tuned 36hz-45hz

Mounting Depth: 5 1/8

Cutout: 5 7/8

Outer Diameter With Gasket: 7 1/4

Displacement: 0.06 ft³

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17999925538

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★★★★★ 5
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Elizabeth
Fort Morgan, US
★★★★★ 5
Good quality and definitely worth it for energetic dogs.
Color: Orange
The automatic moving and rolling action really grabs my dog’s attention, and the rope adds extra fun for chasing and playing. It helps reduce boredom and keeps my dog mentally stimulated, especially when indoors. The motion activation works well, and it’s a fun and engaging toy overall.
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Jason Dong
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my dogs love it
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Reviewed in the United States on April 25, 2026

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