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Integrated amplifiers — Musical Fidelity B1xi

Description, images, technical data and specifications

Musical Fidelity B1xi
Image source — © Musical Fidelity

The B1xi is an entry integrated amplifier with a built-in DAC from Musical Fidelity, positioned as an accessible two-channel hub with moving-magnet phono capability. Musical Fidelity has built a considerable reputation across several price tiers, and the B1xi represents the brand's genuinely accessible entry point for a first serious two-channel system.

Position in line

It sits below the M2SI and M6xi in Musical Fidelity's integrated amplifier range, with the simplest feature set and lowest output among the three. As the entry point in a clearly graduated three-model comparison here, the B1xi trades some of the refinement and output the higher-tier models offer for a genuinely accessible price point.

Key specs that matter

Rated output is 60 W into 8 ohms, rising to 100 W into 4 ohms. Distortion is specified at 1%, notably higher than Musical Fidelity's higher-tier amplifiers, typical of an entry-level design measured under different conditions than a more refined design would be. Damping factor is 30, a modest figure. At 430 x 90 x 324 mm and 7.2 kg it is a compact, lightweight chassis, genuinely practical for a small system or first apartment setup.

Sound and use context

Expect a functional, unfussy presentation for the price class - the modest damping factor and higher distortion figure point to a simpler output stage than Musical Fidelity's higher-tier models use, though this remains a genuinely serviceable entry point rather than a compromised design.

Pairing

Three line-level inputs plus a moving-magnet phono input cover a modest source lineup without needing a separate phono stage, a genuine practical convenience for a first vinyl-capable system.

Alternatives

The M2SI and M6xi sit above this model in Musical Fidelity's range, with more refined output stages and lower distortion figures, worth the step up for a listener who has outgrown this entry model's more modest ambitions. Musical Fidelity broader amplifier range, spanning from this genuinely accessible model through to considerably more ambitious separates, gives buyers a clear upgrade path within a single trusted brand as listening ambitions grow over time. A dealer demonstration alongside the step-up M2SI helps clarify exactly how much the improved damping factor and lower distortion translate into an audible difference for a specific system. Overall this remains a sensible, accessible entry point into Musical Fidelity broader amplifier catalogue.

Specifications

  • Model name

    B1xi

  • Type

    Integrated amplifier with DAC

  • Analog inputs (balanced)

    N/A

  • Analog inputs (single-ended)

    3 +MM phono

  • Input sensitivity (mV)

    N/A

  • Input impedance (balanced) (Ω)

    N/A

  • Input impedance (single-ended) (Ω)

    N/A

  • Output impedance (balanced) (Ω)

    N/A

  • Output impedance (single-ended) (Ω)

    N/A

  • D/A conversion

    N/A

  • Phono MM/MC current-sensing input impedance (Ω)

    N/A

  • Output power (8Ω) (W)

    2 x 60

  • Output power (4Ω) (W)

    2 x 100

  • Gain (dBu)

    N/A

  • Frequency response low +/- 3dB (Hz)

    N/A

  • Frequency response high +/- 3dB (Hz)

    N/A

  • Signal to Noise Ratio (dB)

    N/A

  • Total Harmonic Distortion + Noise (%)

    1

  • Damping factor

    30

  • Dimensions (mm)

    430 x 90 x 324

  • Weight (kg)

    7.2

  • Official link

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