This project allows one to build a very high quality version of the Stax SRD-7MkII headphone adapter to allow one to use an existing favorite amplifier to power your stax headphones. (Let Birgir know what amplifier you have to find out if the adapter is possible in your setup. ) If you can find a used SRD-7MkII, which are pretty rare, it likely wou
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ld be less expensive (~$300 ) than the project adapter. But because this project uses high quality parts (mainly the James Transformers, Teflon insulation silver coated wiring, and silver solder), you might achieve superior sound quality. I have had a SRD-7MkII and I believe subjectively that the project adapter achieves superior channel separation, instrument isolation, detail and bass quality. Included below is a complete parts list. Total parts cost is about $400 - $500. I don`t have the receipts for a few parts but I estimated the cost on those. I only added a normal bias stax connector since I use the wonderful Stax Lambda Normal headphones. But the circuit board allows connection for both normal and high (pro) bias, and one could easily cut another hole in the chassis for another Stax headphone connector so that you can have both possibilities available like the SRD-7MkII does. It took me about 4 months to build working as time permitted. I think that this could be finished in a week or less if one has the dedicated time. I`ve been using this for nine months with perfect operation. Thanks so much to Birgir for his help throughout the project. Please feel free to comment and suggest improvements. 14 ga Silver-coated wire (Teflon-insulation I think) for Speaker Circuit and what I have been using as speaker wire for many years (bought from Scott Welbourne many years ago) The circuit is based around a voltage multiplier...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
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The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
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In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
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