SKU: 88669649150

B2 Audio Reference Series 3" 4-Ohm 50W Coated paper cone Midrange Speaker REF63

Sale price$179.95 Regular price$199.95
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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Description

B2 Audio Reference Series 3" 4-Ohm 50W Coated paper cone Midrange Speaker REF63High Quality Construction: The B2 Audio REF63 Midrange Speaker features a coated paper cone construction, providing durability and enhanced sound reproduction for your car audio system. Wide Frequency Response: With a frequency response ranging from 200 Hz to 12 KHz, this midrange speaker delivers accurate and detailed sound across a wide range of frequencies, ensuring clear and balanced audio reproduction. Neodymium Magnet: Equipped with a neodymium

  • High-Quality Construction: The B2 Audio REF63 Midrange Speaker features a coated paper cone construction, providing durability and enhanced sound reproduction for your car audio system.
  • Wide Frequency Response: With a frequency response ranging from 200 Hz to 12 KHz, this midrange speaker delivers accurate and detailed sound across a wide range of frequencies, ensuring clear and balanced audio reproduction.
  • Neodymium Magnet: Equipped with a neodymium magnet, this midrange speaker offers high magnetic strength in a compact and lightweight design, allowing for efficient power handling and improved performance.
  • Advanced Parameters: Featuring parameters such as QMS, QES, QTS, VAS, CMS, MMS, and BL, this midrange speaker is designed for optimal performance and compatibility with a variety of audio setups.
  • Easy Installation: With compact dimensions and easy mounting options, the REF63 Midrange Speaker can be seamlessly integrated into your car audio system for enhanced sound quality and performance.


B2 Audio Reference Series 3" 4-Ohm 50W Coated paper cone Midrange Speaker REF63



*This one’s been discontinued, but we’ve got you covered. Check out the B2-REFSQ3.



This Listing Includes:



  • (2) 3" 50W Midrange Speakers


Upgrade your car audio system with the B2 Audio REF63 Midrange Speaker. Constructed with a high-quality coated paper cone, this midrange speaker offers durability and enhanced sound reproduction, ensuring clear and balanced audio performance. With a wide frequency response ranging from 200 Hz to 12 KHz, this speaker delivers accurate and detailed sound across a variety of music genres. The neodymium magnet provides high magnetic strength in a lightweight design, allowing for efficient power handling and improved performance. Equipped with advanced parameters for optimal performance, this midrange speaker is designed to enhance your audio experience. With compact dimensions and easy installation options, the REF63 Midrange Speaker is the perfect choice for upgrading your car audio system.


Specifications:



  • Frequency Response: 200 Hz ~ 12 KHz

  • Sensitivity: 81.2 dB

  • Nominal Impedance: 4 Ohm

  • DC Resistance (RE): 4.9 Ohm

  • Resonance Frequency (FS): 190 Hz

  • Power Handling: 50 Watts

  • QMS: 5.04

  • QES: 1.29

  • QTS: 1.03

  • VAS: 0.1 L

  • CMS: 81 um/N

  • MMS: 6.9 g

  • Voice Coil Diameter: 1"

  • BL: 5.9

  • Magnet Type: Neodymium


Dimensions:



  • Mounting Depth: 1.14"

  • Overall Depth: 1.58"

  • Overall Diameter: 3.38"

  • Mounting Diameter: 2.51"

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: 88669649150

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Halle
Lexington, US
★★★★★ 5
long lasting!
Size: Medium, Color: Black/Assorted
literally my favorite sock i will buy forever. they just started busting through after 6 years and i wear them a lot
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Reviewed in the United States on November 13, 2025
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Verified Purchase
David
Whiting, US
★★★★★ 5
Good quality
Size: Medium, Color: Black/Assorted
Comfy and sturdy
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Reviewed in the United States on January 27, 2025
B
Verified Purchase
Brooke
Carnegie, US
★★★★★ 5
Favorite socks
Size: Medium, Color: Black/Assorted
These are my go to socks! Love these. Great towards sweat and different weather temperatures. Mostly use for working out and love them. Will be getting more!
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Reviewed in the United States on April 9, 2024
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Eric Brockman
Phoenix, US
★★★★★ 5
Real comfort.
Size: Large, Color: (001) Black / Black / Pitch Gray
Second purchase. Good workout sock.
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Reviewed in the United States on May 13, 2026
M
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Mother of M.M.
San Leandro, US
★★★★★ 5
Very nice
Size: Large, Color: (100) White / White / Pitch Gray
I just received these for my son. They are very nice and look sturdy, but he hasn't worn them yet, so I cannot speak to how well they hold up in the wash or when worn. They appear to be the right size and look stretchy, but not the kind of stretchy that feels super tight on the foot (which I don't like). If they wear unusually well or poorly, I will come back and edit this.
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Reviewed in the United States on December 26, 2025

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