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PrimaLuna EVO 400 video review

  • The EVO 400 is an all-tube integrated amplifier from PrimaLuna. It is designed in the Netherlands – with heavy input from US distributor Kevin Deal – and made in China. The tube complement sees an octet of EL34 power tubes bridged with a quad of 12AU7 pre-tubes by a pair of 12AU7 driver tubes. All internalised output transformers and toroidals are wound in-house and the wiring protocol is strictly point-to-point. The tube sockets are ceramic. The volume pot is an ALPS. Nichicon and Realcap supplied the capacitors; WBT the speaker binding posts. The single-ended inputs number five and are gold-plated with additional RCA sockets added for HT bypass and mono/stereo subwoofer outputs. Don’t be fooled by the phono stage input. It only functions once the MM pre-amplifier board has been fitted to the amplifier. (In my case, it wasn’t). A quarter-inch headphone socket adorns the front panel but the amplifier must be switched into ‘HP’ mode for the main circuit’s feed to be suitably rediverted. Put down the multi-meter and screwdriver though! One of the EVO 400’s key selling points is its adaptive auto-biasing circuit that works continuously in real-time to ensure that each tube receives the correct dose of voltage at all times. Price? US$5600.

    🎥 Camera: Olaf von Voss / John Darko
    🎬 Editor: John Darko
    🌈 Colour: Olaf von Voss
    🕺🏻 Motion GFX: John Darko
    💰 Ad segment: Jana Dagdagan

    🎵 Song IDs? Playlists of all music heard in this video – and other videos – can be found on PATREON:

    Further information: PrimaLuna USA

    👉🏻 As seen in this video…

    PrimaLuna adaptive auto-bias

    Beginners guide to tubes/valves in audio

    Zu DWX

    Klipsch Forte IV

    Vivid Audio Kaya S12

    NAD Masters M23

    Lyngdorf TDAI-3400

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    Written by John Darko

    John currently lives in Berlin where he creates videos and podcasts for Darko.Audio. He has previously contributed to 6moons, TONEAudio, AudioStream and Stereophile.

    Darko.Audio is a member of EISA.

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