superlux 668b

  1. Ezequiel Casas

    Headphone Calibration: From a Harman Curve to a Flat Curve

    Hi. First of all I want to clarify that I am not an expert user. Simply this PDF is based on research and homemade experiments based on common sense. I tried to use a friendly language for everyone, leaving aside technicalities. This process is valid for all headphones of the AutoEQ project. I...
  2. DallaPo

    SUPERLUX - SHOOTOUT (Over-Ear | Semi-Open)

    Shootout between the HD681 EVO, HD668 B and HD672 Criteria: Over-Ear + Semi-Open Price range: 20 € - 50 € Explanation: I keep my headphone reviews as simple as possible and in blog form. For the most part, headphones in a similar price range and with comparable technical characteristics are...
  3. T

    Fisher CA-G5 vintage amp

    What's the general consensus about vintage amps like this? Found a used, working one for $18 and I absolutely love the way it looks. Unfortunately, I tried googling for it, but I can't find anything. I plan to hook it up to my PC and mainly use it to drive my Superlux HD 668b.
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