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Power amplifiers stereo — PrimaLuna EVO 400-4

Description, images, technical data and specifications

PrimaLuna EVO 400-4
Image source — © PrimaLuna

The PrimaLuna EVO 400 Power is the oldest of the four power amplifiers, producing 2 x 38 Watts of triode operation on EL34 lamps or 2 x 70 watts in ultraline mode. It can also operate on KT88 / KT120 / KT150 lamps, respectively, producing 2 x 43 / 2 x 45 / 2 x 51 watts in triode mode or 2 x 72 / 2 x 85 / 2 x 89 watts in ultralinear mode.

Specifications

  • Model name

    EVO 400-4

  • Input sensitivity (mV)

    1100

  • 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)

    70 / 72 / 85 / 89

  • Output power (4Ω) (W)

    N/A

  • Gain (dBu)

    27 / 26.5 / 26.5 / 26 ; 30 / 30 / 30 / 30 (UL)

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

    8

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

    70 000

  • Signal to Noise Ratio (dB)

    95 - 105

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

    N/A

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

    < 0.1

  • Max power consumption (W)

    550

  • Damping factor

    N/A

  • Dimensions (mm)

    405 x 385 x 205

  • Weight (kg)

    31

  • Official link

    https://www.primaluna.nl/tube/power/primaluna-evo-400-tube-poweramplifier/

PrimaLuna EVO 300-4

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    The PrimaLuna EVO 100 Power is the youngest of four power amplifiers, producing 2 x 40 watts on EL34 lamps. This stereo power amplifier can be easily switched to mono mode using the switch on the back panel. After that, your monoblock gets another outlet outlet for 2-ohm loads (in addition to 4-ohm and 8-ohm), and two output transformers will provide better alignment with the speakers.

  • EVO 200-4

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    The PrimaLuna Evolution 200 Power tube power amplifier is built according to a push-pull circuit. The device is made in a classic metal case with an open lamp installation. The latter can be covered with a casing to protect them from accidental touching.

  • EVO 300-4

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    PrimaLuna EVO 300-4

    This stereo power amplifier can be easily switched to mono mode using the switch on the back panel. After that, your monoblock gets another tap at the output for a 2 ohm load (in addition to a 4 ohm and an 8 ohm), and two output transformers will provide better alignment with the speakers.

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