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 12 - Aug 17

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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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Aaron
Battle Creek, US
★★★★★ 5
good shoes
Size: 8, Color: Black/White/Iron Grey
better than what i estimated. it took a day for θem 2 sink in, letting me feel full eφect.
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Reviewed in the United States on May 7, 2026
P
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personas de 40 aÑos en adelante
Alexandria, US
★★★★★ 4
son comodos
Size: 9, Color: Black/White/Iron Grey
muy satisfecha con esta compra,
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Reviewed in the United States on April 29, 2026
T
Verified Purchase
Timothy B.
New York, US
★★★★★ 5
A great everyday companion.
Overall this is a great watch for the price. Swiss Made and the right size for a larger dial vs. others in the class. The dial color is more gray than black which was a plus for me as I was looking for a gray dial. I switched out the band for a black field band bought on Hamilton’s website. I am very happy with the results!
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Reviewed in the United States on November 14, 2025
J
Verified Purchase
Jonathan Lee
Waukegan, US
★★★★★ 5
The Perfect Everyday Watch
This hands down is the best everyday watch. I have a large wrist so the 42mm works perfectly for me. The all brushed titanium looks great. The subdued look and clear dial just only make it better. I didnt want to believe the Hamilton hype but I have to say that Hamilton makes a great solid watch. If you are looking for the everyday watch that just feels right, is solid, and works, look no further. I am sure the standard version is just as good also. ALSO, the dial is not black black. It is slightly a grayish tone. At first I hated this detail but after looking at it, it just looks so good.
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Reviewed in the United States on October 12, 2020
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Verified Purchase
Lamar.Fandango
Belleville, US
★★★★★ 1
Hamilton titanium is worse than mediocre
Where can I start with how bad this watch is? (1) the movement is a derated movement with a low beat rate. This means the seconds hand visibly clicks almost like a quartz watch. (2) the beautiful dial is rarely seen because there is no anti-reflective coating. Instead, you see overhead lighting when you check your watch. (3) the watch is already oversized, but the excessive lug-to-lug length makes this look like a clown watch. Make sure your wrist is 8" or more for this watch. (4) it's dainty for a field watch. The push-down crown easily pops out, making rain or sweat a real watch killer. It's also gets scratched at the slightest touch. (5) the superluminova on the hands and face is so thin that it is worthless. (6) When I say Seiko and Timex make better automatic watches, I don't mean "better value" or "better for the money." I mean that Seiko and Timex have better movements, better styling, better wearability, better durabity, better visability... all around better. The Hamiltons released with the low-beat H-10 are bringing shame to the one-respected Hamilton brand.
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Reviewed in the United States on July 24, 2023

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