Akiko Audio Castello Ground Conditioner

“A high quality component ground conditioner”


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    Akiko Audio Component ground conditioner – Castello

    Introducing the Akiko Audio Castello Ground Conditioner.

    Over the past years the team at Akiko has become very experienced in reducing the noise floor in the rendering chain. Noise pollution is an unwanted signal in the rendering chain, that affects all connected devices in your audio and video system.

    The ground in the power supply has a more complicated task than is generally assumed. It is often seen as a mere safety precaution and thus receives little attention. Nonetheless, the grounding also influences your devices.

    The potential of all connected devices differs and is influenced by the resistance in your cables and in the connectors in your meter cupboard. Similarly, the grounding has a variable energy level of itself as well. Akiko have noticed that a correctly applied grounding can have major influences on the sound and image quality.

    The Ground Conditioner Castello operates independently and is therefore not influenced by other electrical equipment in your house. The compact unit is passive and forms a zero-reference for your system. High frequency surface electricity seeks a low energy point and will therefore use the Ground Conditioner as a ground.


    The Castello has three compartments, which are separated from each other yet still work together because they are encased in a single aluminium housing. The contents are stabilized with special black resin. The Ground Conditioner has three connectors and every unit comes with three ground wires. It works especially well with digital source equipment, preamplifiers, computer related devices, DACs and high-end LED screens. It is a modular system, which means you can add multiple units to your set if more connections are required.

    The Ground Conditioner Castello combines very well with other Akiko Audio tuning products and improves the effects of the Power Conditioner Corelli. There is now a version with a single outlet, the Castello Solo, designed especially for the Corelli. It is the same price as the Castello with three outlets.

    Improvements can you expect:

    • A very honest, neutral and relaxed rendering
    • Improved dynamics and spaciousness
    • Music is experienced more naturally
    • Improvements in the image and sound quality of video systems
    • Improvements in voice rendering and acoustic instruments
    • Deeper immersion into the recording


    • Dimensions (w x d x h cm): 16 x 16 x 11
    • Weight: 4.5 kg
    • Gold plated Hirschmann 4mm banana sockets
    • All soldering is done with silver solder
    • 3 x 1.5m RCA cables included – can be configured with XLR male/female; 4mm spade; 6/8mm spade. (other connectors available on request)
    • Additional cables (from £75.00) Standard length 1.5m
    • 10 years factory warranty