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Best Value Integrated Amplifier Award 2025-2026 – EISA
Versatile 100 WPC Integrated Amplifier with Rich, Dynamic Tube-Like Sound
The B1xi integrated amplifier channels Musical Fidelity’s renowned amplifier expertise into a versatile, high-performance package. Driven by the design principles of the company's flagship models, the B1xi delivers 100W per channel into 4 ohms through a refined Class A/B circuit, offering a rich and dynamic tube-like sound.
Designed for today’s diverse listening needs, it features a comprehensive input selection: MM phono stage, coaxial and optical digital inputs, ARC, Bluetooth, and three RCA line inputs – all engineered for seamless source integration. A variable RCA pre-out supports subwoofer connection or bi-amping, while a 5V USB-C output provides convenient and clean high-quality power for an external streamer.
Award-Winning Performance
The Musical Fidelity B1xi won an award for Best Value Integrated Amplifier 2025-2026 from EISA, the Expert Imaging and Sound Association.
"Having earned a 2024-2025 EISA Award for its revived A1 amplifier, Musical Fidelity repeats the trick with its resurrection of the B1. While retaining the original’s Class AB topology, the new B1xi integrated amplifier is a modern interpretation of the 1980s icon, with an improved power supply and re-engineered circuit design now including a USB digital input."
"Extra attention paid to reducing the impact of RF interference and the implementation of a new phono stage pays off, both when spinning vinyl or other sources through digital and analogue inputs."
Superior Sonic and Build Quality
Encased in robust all-metal construction with solid metal controls and a solid aluminum front panel, the B1xi offers the sonic and build quality Musical Fidelity is known for, delivering a pure, uncompromised audio experience for discerning music lovers.
With its inclusion of high-end elements – such as the robust metal controls, extruded aluminum front panel, and a chassis crafted entirely from meta – the B1xi occupies an enviable position for discerning audiophiles seeking an unadulterated high-end amplifier.
Pure Class A/B Excellence with True High-End Audiophile Design
Transistor amps in Class A/B are best after tubes and Class A amps. With tube-like sound and power, the B1xi delivers 60 watts per channel into 8 ohms, 100 watts into 4 ohms and 140W peaks into 2 ohms. It won’t struggle to drive a wide range of speakers, even power-hungry models.
The fully discrete Class A/B power amp, complemented by its dedicated power supply and generously proportioned toroidal transformer, guarantees reserves for proper peak delivery and a wide dynamic range. Power hungry and difficult speakers are driven with ease. Low impedance dips are managed gracefully and the judiciously rated output devices won‘t faulter under any load.
No WiFi on Purpose
The B1xi remains committed to sound quality instead of WiFi, a fancy display, and an app. There is no WiFi streaming on purpose. There has been a surge in offerings from hi-fi companies with all-in-one solutions and, unfortunately, such developments are typically hugely expensive. As a result, many manufactures save money by using cheap plastic cabinets, low-cost digital amplifiers, and low-cost power supplies.
Musical Fidelity stands for sound quality and robust design that lasts for decades. The company invests its money and resources in top-tier hardware and the pursuit of optimal music reproduction. This results in robust mechanics, discrete circuits, oversize transformers, and Class A/B amp designs.
Fast moving streaming technology is best kept separate and, therefore, will not negatively impact the lifecycle of the B1xi. For that reason, the B1xi features a high-quality isolated USB C 5V power output for your favorite modern streamer – effectively also doubling as a power supply upgrade for your streamer.
Making High-End Affordable Like Never Before
Any RF frequencies influence the performance of the analog amplifier. Consequently, the design team, headed by chief technical director Simon Quarry took a full year to improve the layout of the circuitry and match the boards in relation to the transformer.
Additionally, the B1xi relies on carefully selected components for long-term availability and reliability, to avoid any change which would cause a redesign of the product, along with RF shielding and board placement to avoid interference with analog stages.
All in all, the B1xi achieves price/performance like never before for Musical Fidelity. With carefully selected components, precisely tuned circuitry layout and years and years of research and development, the B1xi stays true to the Musical Fidelity philosophy and makes high-end affordable like never before.
