CU-6.5 | 6.5" 350 Watt RMS Subwoofer
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 Jul 8 - Jul 13

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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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Atlanta
Omaha, US
★★★★★ 5
Cabin air filter
Item Package Quantity: 1
Works great! Easy to install, about 5 minutes or less. Will definitely purchase again and would recommend. Used on Honda CRV.
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Reviewed in the United States on May 23, 2026
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Mike P
Port Orchard, US
★★★★★ 5
It works.
Item Package Quantity: 1
All as shown and performs well. Reasonable price.
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Reviewed in the United States on April 3, 2026
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Sabby
Lake Worth, US
★★★★★ 5
Amazing product
Item Package Quantity: 1
Awesome product , fits perfect for Honda crv sport hybrid touring 2026 . Quality is amazing , looks like the original OEM part .
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Reviewed in the United States on May 13, 2026
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De Jesus
Chelsea, US
★★★★★ 5
Great starter!
Excellent! A year later and it is still going strong! It will probably outlast the truck.
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Reviewed in the United States on May 22, 2026
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Stephanie Quintana
Draper, US
★★★★★ 5
I got exactly what I ordered!
It was the correct part as listed.
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Reviewed in the United States on April 30, 2026

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