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The Bryston 4B: A Legendary Power Amplifier
The Bryston 4B is a legendary stereo power amplifier that has been a benchmark for high-performance audio since its introduction in 1976. Over the past four decades, it has undergone seven revisions, each improving its performance while maintaining the core design principles that made it so successful. Here's a brief history of the Bryston 4B:
1976: The Original 4B
The first Bryston 4B debuted at the Chicago Consumer Electronics Show in the summer of 1976. This initial version offered 100 watts per channel into 8 ohms and quickly gained acclaim for its neutral sound, robust build quality, and exceptional reliability.
1977: Critical Acclaim and Growing Sales
In 1977, renowned audio critic Peter Aczel published a glowing review of the 4B in Stereophile magazine, praising its transparency, power reserves, and ability to drive demanding speakers. This review significantly boosted the 4B's popularity and sales took off.
1978-1992: Subsequent Iterations
Over the next 15 years, Bryston continued to refine the 4B, releasing several updated versions with improved performance characteristics. These included the 4Be (1978), 4B NRB (1982), and 4B ST (1987). Each iteration retained the core strengths of the original while incorporating new technologies and design tweaks.
1993-2008: The 4B SST and SST²
The 1990s saw the introduction of the 4B SST, a significant upgrade that featured a new circuit board layout, improved thermal management, and higher power output (200 watts per channel into 8 ohms). In 2003, the 4B SST² was released,offering further refinements such as balanced inputs and a THX Ultra2 certification.
2008-Present: The 4B³ and Trade-Up Program
In 2008, Bryston launched the 4B³, the current iteration of the iconic amplifier. This latest version boasts a further increase in power output (300 watts per channel into 8 ohms), updated circuitry, and a sleek new design. Additionally,Bryston introduced a unique trade-up program in 2017, allowing owners of older 4B models to upgrade to the latest version at a discounted price.
Impact and Legacy
The Bryston 4B has had a profound impact on the high-fidelity audio industry. Its exceptional performance, longevity, and dedication to quality have earned it a loyal following among audio enthusiasts and professionals alike. It remains a benchmark for power amplifiers and a testament to Bryston's commitment to crafting audio equipment that stands the test of time.
Here are some helpful resources where you can learn more about the Bryston 4B: