This product is a downloadable item. It does not include any physical clones or parts. The transaction will be completed after you download the assembly PDF manual from the internet. Please purchase the parts and assemble them yourself. After receiving the product, we will provide after-sales support through transaction messages. At your request, we have added instructions for "Niev-kun Original," "Niev-kun DI," "Niev-kun Kai (Vintage)," and "Niev-kun Kai (Reproduction)," as well as transformer-related materials to the manual. Advantages of Niev-kun: You can experience the sound quality changes that were only available with expensive analog equipment at a low cost. You can add an analog feel to digital devices. Disadvantages of Niev-kun: The volume doubles just by passing audio through it, which can lead to the illusion that the sound has improved. In reality, the difference is so small that it's unnoticeable in a blind test. Niev-kun is a copy of the NEVE 1073 input microphone transformer section, so the input impedance is too low for line input, and it can't be used with condenser microphones because phantom power is not supported. It's a somewhat half-baked specification. It is said that the secret to the sound of vintage NEVE lies in the transformer. The sound quality degradation, in a sense, that occurs when passing through the transformer is highly regarded as being very musical. The Marinair transformers used in the original NEVE are now manufactured as OEP/Carnhill, and they continue to produce audio transformers. The vintage (Carnhill) reproduction costs around 60 euros, and the current product (OEP) costs around 5000 yen, and they make excellent transformers. (The current product can be purchased domestically, but the reproduction is only imported.) I made three types: the current product, the reproduction, and, if I was lucky enough to get one, the vintage version. The vintage, reproduction, and current versions were better in that order. Since it only passes through an audio transformer, the change in sound quality is extremely slight. It doesn't change the sound significantly like an effects pedal. How to import the reproduction (Carnhill): DTM DRIVER! https://dtmdriver.com/carnhill-how2