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Power amplifiers mono — Line Magnetic Audio LM-41.2-212

Description, images, technical data and specifications

Line Magnetic Audio LM-41.2-212
Image source — © Line Magnetic Audio

The Line Magnetic LM-41.2-212 is a monoblock single-ended amplifier built around the 212 transmitting triode. Its styling draws on the Western Electric 41 and 42 amplifiers, and a pair of chassis makes up a stereo setup.

Key specs that matter

Rated power per chassis is 20 W into 8 ohms. The 41.2 input section has a 600 ohm input impedance and offers 600 ohm and 8 ohm outputs. The frequency response runs from 10 Hz to 20 kHz at -3 dB, S/N measures 88 dB, and THD+N is 1 percent with full global feedback.

Engineering and use context

A large directly heated 212 output triode runs at high voltage and gives off a lot of heat, so each chassis needs a stable, well-ventilated position away from enclosed cabinets.

Specifications

  • Model name

    LM-41.2-212

  • Input sensitivity (mV)

    N/A

  • Input impedance (balanced) (Ω)

    100 000

  • Input impedance (single-ended) (Ω)

    100 000

  • Output impedance (balanced) (Ω)

    N/A

  • Output impedance (single-ended) (Ω)

    N/A

  • Max current (A)

    N/A

  • Output power (8Ω) (W)

    20

  • Output power (4Ω) (W)

    N/A

  • Gain (dBu)

    N/A

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

    10

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

    20 000

  • Signal to Noise Ratio (dB)

    88

  • Total Harmonic Distortion + Noise (0% global feedback) (%)

    N/A

  • Total Harmonic Distortion + Noise (100% global feedback) (%)

    1

  • Max power consumption (W)

    N/A

  • Damping factor

    N/A

  • Dimensions (mm)

    174.0 х 57.0 х 52.0

  • Weight (kg)

    204

  • Official link

    https://line-magnetic.eu/collections/all

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