SKU: 73576710510

Bryston 3B³ Cubed Dual-Mono Amplifier

Sale price$4274.55 Regular price$4749.50
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Description

Bryston 3B³ Cubed Dual-Mono Amplifier3B Cubed Dual Mono Amplifier Way back in 1973, a young engineer named Chris Russell took his new prototype amplifier, the PRO 3, to an A list studio in Toronto for an audition. He left with an order for two. Nearly five decades later, that amp has evolved into the Bryston 3B Cubed. It's twice as powerful as the original and ten times as impressive. Though it's one of our smaller amplifiers, it features all the same technology found in our venerable

3B Cubed Dual-Mono Amplifier

Way back in 1973, a young engineer named Chris Russell took his new prototype amplifier, the PRO 3, to an A list studio in Toronto for an audition. He left with an order for two. Nearly five decades later, that amp has evolved into the Bryston 3B Cubed. It's twice as powerful as the original and ten times as impressive. Though it's one of our smaller amplifiers, it features all the same technology found in our venerable 4B. One big advantage, however, is the shallow depth. The 3B Cubed is a great all around amp, but is especially useful for shallow mounting depth applications.

Features

  • Balanced XLR and Single ended RCA input
  • 2 Channels each with fully independent power supplies including transformers
  • 200W into 8 ohms (and up to 300 into 4 ohms) per channel
  • The patented Salomie circuit found in all Cubed Series amplifiers
  • Switchable gain (23dB or 29dB)
  • Fully convection cooled means no noisy fans
  • Machined and anodized aluminum enclosure and dress panel
  • Less than 500mW standby power consumption
  • SoftStart microprocessor controlled startup sequence won't trip circuit breakers
  • DC trigger for automated turn on and turn off
  • Legendary Bryston 20 Year Warranty

Options

  • Silver or black faceplate
  • 17” or 19” faceplate (non-rack mountable) 19" comes with front mounted handles
  • PRO version includes 19" rack mount dress panel in black plus rear panel channel trim pots (-14 to 0dB)

Reviews

After our extensive tests, we can conclude that with the 3B³ you really get a heck of an amplifier. A powerhouse that is not only enormously robust, but also plays with delicate, almost surgical precision. We can only say that the 3B³ belongs in the absolute reference class.

Harro Tillema

Alpha Audio

The interesting thing about the new sound is that it is smoother and warmer, yet still comes across as completely neutral, and with a refinement and low-level resolution that leaves nothing to be desired. The most amazing quality perhaps is in the treble, which is supremely subtle and decidedly non-edgy, even with the most critical speakers.

Christiaan Punter

HFA

Last but not least, a very exciting insight: Whether it's the high damping factor or the broadband - the Bryston power amp has perfectly harmonized with all my speakers and literally made the most of them.

Jochen Reinecke

Fairaudio

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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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: 73576710510

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4.3 ★★★★★
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Petra
Fort Morgan, US
★★★★★ 5
Exceeded My Expectations
Size: 1PCS, Color: Holo Silver
Love love LOVEEE. I feel like a fairy! You only need a short spritz to get a perfect amount of glitter. The sparkles are beautiful, rainbowy and long lasting. I sprayed some on me yesterday and it's still going strong. It dries quickly and really gets those sparkles down. Even if you rub the part of you that's been glittered, it sticks! It doesn't even have a chemically smell, it's kind of flowery? Which I totally didn't expect. However I would recommend spraying yourself outside because the glitter gets all over the house. Unfortunately (or fortunately) my floor will forever be glittered.
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Reviewed in the United States on March 29, 2025
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Verified Purchase
Kristina Lozon-Kimling
Phoenix, US
★★★★★ 5
Really pretty sparkle!
Size: 1PCS, Color: Gold
I actually bought this product (one can) so I could spray this on my small area of frog ornaments and rocks by our pool. *The product does not state it is intended for craft use. I am very okay with that. Being in Arizona with sun and wind, I wasn’t sure how this would work, turns out what little I did do, (I was afraid my bottle would run out), did a nice job! Half the glitter I sprayed survived a serious thunderstorm we had one night a week or two ago! I did end up spraying some glitter on my arm, it’s really pretty, subtle, small size glitter, but definitely noticeable outside. You can make your layers as thin or thick as you like. The glitter comes out of the can like hairspray. Very faint smell that will go away within 5-10 minutes, depending on much you use.  I will definitely be purchasing more of this item in more colors in the future. 
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Reviewed in the United States on July 12, 2025
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Verified Purchase
Ruthanime
Draper, US
★★★★★ 5
Must buy!!
Size: 1PCS, Color: Holo Silver, Size: 1PCS, Color: Holo Silver
After carefully looking at the reviews, I ended up purchasing the silver holographic body glitter spray. I immediately sprayed it on my arm, and it blasted my arm full of glitter! I wiped my arm and already dried down! I can’t wait to spray this in my hair and see how long this can last, but I’m definitely buying more with a different variety of colors. Definitely worth the money. I’m obsessed! I will say that if you don’t want glitter everywhere then spray outside.
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Reviewed in the United States on March 5, 2026
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DreamandBelieve
Boise, US
★★★★★ 1
Waste of money
Size: 1PCS, Color: Green
Barely noticeable! I bought the green glitter and let's just say there's Very little glitter! Pretty much non-existent. Definitely not worth $10 and It's not returnable. For $10 I would have expected something noticeable
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Reviewed in the United States on May 16, 2026
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Anneliese
Chelsea, US
★★★★★ 4
Very pretty.....but it spreads.....a lot
Size: 1PCS, Color: Holo Silver
I put this on my cosplay wig, but I had to take it outside to apply. This gets EVERYWHERE. I'm still finding glitter months later. It is easy to apply and dries quickly initially, but it just spreads everywhere.
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Reviewed in the United States on January 8, 2026

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