B2 Audio Reference Series 3-Way Crossover Pair B2-REF3WBX
SKU: 51406112211

B2 Audio Reference Series 3-Way Crossover Pair B2-REF3WBX

$161.95 $179.95
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Description

B2 Audio Reference Series 3-Way Crossover Pair B2-REF3WBXCLEAN SIGNAL DISTRIBUTION: Properly separates frequencies between woofer, midrange, and tweeter for improved clarity and staging SHOW QUALITY DESIGN: Transparent acrylic cover and exposed copper coils create a premium high end appearance TUNABLE HIGH FREQUENCIES: Adjustable tweeter attenuation allows fine tuning for different vehicles and listening preferences BUILT FOR REFERENCE SYSTEMS: Designed to complement high performance component speaker

  • CLEAN SIGNAL DISTRIBUTION: Properly separates frequencies between woofer, midrange, and tweeter for improved clarity and staging
  • SHOW-QUALITY DESIGN: Transparent acrylic cover and exposed copper coils create a premium high-end appearance
  • TUNABLE HIGH FREQUENCIES: Adjustable tweeter attenuation allows fine tuning for different vehicles and listening preferences
  • BUILT FOR REFERENCE SYSTEMS: Designed to complement high-performance component speaker systems and SQL builds
  • PREMIUM INTERNAL COMPONENTS: Features large copper inductors, high-voltage capacitors, and durable resistors for stable performance
  • EASY INSTALLATION: Clearly labeled terminals simplify wiring for multi-speaker setups


B2 Audio Reference 3 Way Crossover Pair B2-REF3WBX


This Listing Includes



  • (2) B2 Audio 3 Way Crossovers B2-REF3WBX


Built for serious sound quality systems, the B2 Audio REF3WBX 3-Way Passive Crossovers are designed to bring clean signal distribution and refined tuning control to high-end speaker setups. Featuring a premium exposed-component design under a clear acrylic cover, these crossovers don't just perform beautifully, they look like audio jewelry for your install. Red copper-wound inductors, high-grade capacitors, and heavy-duty connection terminals give the REF3WBX the kind of "show build" energy that belongs behind plexiglass and RGB glow.


Designed for 3-way component systems, the REF3WBX helps properly distribute frequencies between your woofer, midrange, and tweeter for smoother response, improved clarity, and more balanced imaging. Adjustable tweeter attenuation settings allow you to fine-tune the top end to better match your vehicle acoustics and personal listening preferences.


Whether you're building a clean SQL setup, reference-grade front stage, or a full European-inspired sound quality install, the REF3WBX delivers the detail and control expected from B2 Audio’s Reference lineup.


Features



  • Premium 3-way passive crossover network

  • Designed for woofer, midrange, and tweeter integration

  • Adjustable tweeter level attenuation

  • High-quality copper inductors and premium components

  • Clear acrylic protective cover with exposed showcase layout

  • Heavy-duty screw-down terminals

  • Compact mounting-friendly design

  • Ideal for SQ and high-end custom audio systems

  • Signature B2 Audio Reference styling

  • Sold as a pair


Specifications



  • Model: B2-REF3WBX

  • Type: 3-Way Passive Crossover

  • Configuration: Woofer / Midrange / Tweeter

  • Tweeter Level Adjustment: Yes

  • Connection Type: Screw Terminal

  • Protective Cover: Clear Acrylic

  • Quantity: Pair

  • Application: Car Audio Component Systems


Dimensions



  • Length: 5.5"

  • Width: 3.7"

  • Depth: 1.6"

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: 51406112211

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4.3 ★★★★★
Based on 2275 reviews
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Verified Purchase
Reviewer JR
Natrona Heights, US
★★★★★ 3
Not as good as I expected
When it first came, the box fell apart as I was taking it out, and a lot of some kind of dirt or sand kept falling out all over my table and floor. I had the take the entire thing apart and thoroughly wash it. After drying age reassembling it, I tried it on my portafilter that came with my Breville Barista Express, but, somehow, it doesn't always make the tamping level. You would think with the ridge that rests on the side of the portafilter that it would force it to remain level, but, somehow, it doesn't, at least not consistently. It also has varying lengths (heights, or depths), and a single spring tension, so you may still over tamping or under-tamp. I was expecting it would have a censor that would just detect once it reached 30 lbs of force and cut off after that, similar to a torque screwdriver, but that's not what this is. I'll still give it 3 stars because, despite the problems mentioned above, it at least produces some amount of consistency, even if that isn't measurable; but, I can't give it 5 stars because of those issues mentioned above.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2025
B
Verified Purchase
Bernard Eisenfeld, M.D.
Lexington, US
★★★★★ 5
This is the one.
Size: 58.3mm, Color: Black
As an el Supremo Coffee Geek, I've wasted money on lots of different tampers. Save your money and buy this one or it's equivalent. This thing is heavy duty, solid, well-made, self-leveling, tamps at 30 pounds and is fool-proof even for fools. Also, it's a palm tamper meaning more fun and more satisfying to use as you prep the puck for your morning buzz. Buy it. You will thank me.
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Reviewed in the United States on March 30, 2024
L
lesserof2weevils
Houston, US
★★★★★ 5
Super easy to use and takes the guess-work out of getting even pressure on the grounds
Size: 58.3mm, Color: Black, Size: 58.3mm, Color: Black
I have been using a hand tamper for many years and have a good idea of the pressure I am applying to the grounds in the portafilter. I honestly considered spring tampers to be a bit silly. But this tamper really does take the guess-work out of pressing the coffee grounds. The shroud helps guide the press so that pressure is applied even and flat across the surface. With the manual tamper, there will be some play when pressing, or some unevenness in pressure. This is especially true when cranking out many espressos during a breakfast party with friends. Having the spring tamper makes quick work of turning out a lot of coffees with consistency. There are no instructions for taking this tamper apart to clean inside, and you may not really need to do that very often. After each use, just pull back the shroud (the black piece that moves up and down) and wipe off the tamper (the shiny steel part). This will help prevent grounds from working their way inside. If you do want to take it apart, it’s easy. Pull back the shroud and unscrew the tamper. It will come apart into three pieces. Wipe the pieces off and reassemble. Super quick and easy. This tamper is very heavy. My scale shows 656 g (about a pound and a half). It fits the portafilter exactly, with no slop. Just place on top of grounds and press!. Don’t even worry about pressure, just push down all the way. Overall I had fun using this tamper versus my manual one. And since I make myself a cappuccino very early in the morning, I don’t have to be very awake to get a good pack on the grounds and get my coffee fast!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2024
C
Verified Purchase
Cooper
Grantham, US
★★★★★ 5
Great upgrade
Size: 54mm Fits Breville Barista/Bambino/Infuser
I just got a Breville barista express for Christmas and was searching for upgraded tools. I stumbled across this accessory kit and was worried about the quality. I’m pleased to say I’ve very happy with the quality for the price that you get these for, all the tools are heavy and feel sturdy. My coffee is much better not. This fits the barista express perfect. The metal design is very nice in the hands and easy to use. Functions exactly as I would expect. Overall great buy for anyone looking for an affordable upgrade.
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Reviewed in the United States on January 20, 2026
L
Verified Purchase
~Life Is Beautiful~
Battle Creek, US
★★★★★ 5
Quality well made kit, happy with my purchase
Size: 54mm Fits Breville Barista/Bambino/Infuser
I am so glad I went ahead and purchased this 7 piece espresso accessories kit! All the tools included are very well made. The tamper is exceptional, sometimes the spring can get misaligned, as I have read with pretty much all tampers, the set is made Well. I have not had any problems. I'm very well satisfied with the upgrade. The appearance is quality and feels heavy and expensive. I searched for many of these espresso accessory kits, and I'm glad that I went with this one.
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Reviewed in the United States on April 17, 2026

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