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$ 6,795 .00
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SKU

56905

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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
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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

ConditionNew
Active or PassiveActive
Chassis19-inch Rack-mount
ChannelsDual-Channel
Number of Inputs2
Number of Outputs2
Amp Wattage1000w
Impedance4 or 8 Ohms

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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.
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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.
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