Skip To Main Content
Vintage King's Los Angeles and Nashville showrooms are available for curbside pickups. Please set-up an appointment to pick up your order.
Special 0% Financing When you use your Vintage King Credit Card Learn More
Fall into savings! Fresh deals added daily. Shop Now.
  1. Home
  2. Recording
  3. Studio Monitors
  4. Amplifiers & Crossovers
  5. Bryston 4B³ PRO 300-Watt Stereo Power Amplifier

(0)

write a review
$ 6,795 .00
No interest if paid in full within 18 months Learn more
Special Order
Note: This item may not be returnable or could require a restocking fee. Contact one of our Audio Consultants for more details.
Due to the special nature of this item, we order each unit fresh from the factory, exclusively for you! Lead times may vary so please chat, call or email for up-to-date inventory status.

SKU

56905

Questions? Spot a Better Price? Call 888.653.1184 or

Add to List Compare

Bryston 4B³ PRO 300-Watt Stereo Power Amplifier

300-watt stereo power amplifier with active extremely low distortion input buffer, balanced and single-ended audio inputs, and selectable gain at 23 or 29 dB

MFR# 4B3-PRO
Shop All Bryston Limited
main product photo

Product Description

The Bryston 4B³ is a dual-channel (stereo) amplifier which is acclaimed internationally as being suited for the finest and most sophisticated sound systems. It is currently the most popular Cubed Series model.

Power Capabilities:

  • 300W into 8Ω
  • 500W into 4Ω
  • 900W into 8Ω (Bridged Mono)

Features:

  • Active extremely low distortion input buffer
  • Balanced and Single Ended audio inputs
  • Selectable gain at 23 or 29 dB
  • Regulated power supplies to all voltage gain stages
  • Independent power supplies for each channel
  • Convection cooled and housed in a fully aluminum chassis.
  • No fans or other moving parts
  • Bridging switch configures amplifier into a single 900 W Channel

Specifications:

  • Harmonic Distortion: ≤0.005% from 20 Hz to 20 kHz at 300 W
  • Noise below full output: -110dB single ended, -113dB balanced
  • Slew Rate: >60V/µS
  • Power Bandwidth: 0.5 Hz to >100 kHz
  • Damping Factor: >500 at 20 Hz (8Ω)
  • Switchable Gain: 23 or 29 dB

Product Specifications

Condition New
Active or Passive Active
Chassis 19-inch Rack-mount
Channels Dual-Channel
Number of Inputs 2
Number of Outputs 2
Amp Wattage 1000w
Impedance 4 or 8 Ohms

Product Reviews

No one has written a review yet. Be the first!

* Required Fields

Share Your Opinion

The best gear advice always comes from those who use it the most. That's where you come in! Let the pro audio world hear your voice with a review of the Bryston 4B³ PRO 300-Watt Stereo Power Amplifier. Once you submit your review, please check your email and verify your address to have it posted.

How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
Robby T.
I would recommend Vintage King to any one looking for top-class gear, unbeatable customer service and the best prices on the map!
Jake D.
My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
Michael D.
From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
Thomas W.
I am a new customer of yours. You guys provided me the absolute best deals in ordering all the equipment to power my brand new recording studio. Your customer service is amazing and i will always deal with you from here on out.
Rob M.
Thanks for your great service and getting this out today. You guys really are the Kings!
Alan B.
Better than expected! Truly impeccable service. Your team was professional, knowledgeable, provided speedy delivery above and beyond standard. Vintage King Audio is definitely my go to for all of my audio and information needs.
James O.

For assistance in better understanding the content of this page or any other page within this website, please call 888.653.1184 during normal business hours.

© 1993 - 2020 Vintage King Audio All Rights Reserved. Terms and Conditions | Privacy and Security | Accessibility

Signifyd SSL Accessible360