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Onkyo Scepter Mark II Series Project

SuperToaste7

Active Member
So I just wanted to make this post to just share some of my acquisitions from the previous year and some plans I have going forward for this long term project of mine. To start, I had purchased a set of Onkyo HM-300A MKII Horns earlier last year and planned to eventually get as much of the original set of the Mark II line as I could. I was somehow able to get a NOS TW-9A original in box with the original wood support as well as the matching Acoustic Lens attachments AL-9A. I also got the entire set of cross-over filters and dividers that were paired with this line of drivers; NT-500H, NT-500L which use large and the Divider NT-5000A. Due to the age of those and the original MP capacitors on them, not entirely sure if those will be used exclusively though I did test them and they do work. I got my hands on the LC-8A level controllers that pair with the Midrange horn. Lastly the giant 38cm W-38AMKII woofer which is 'like new' in box, it does not even look like it was ever used which is was an amazing find along with the earlier "Osaka Onkyo" marking which all these drivers were made during the early 70's. I just need to find one more woofer and the whole driver set will be complete. I also have the TW-7SMKII Super Tweeter which I might use to make a full 4 way scheme speaker. The next step will be having a cabinet made, which will be an interesting project in of itself since I have never done anything like that but I know there are many knowledgeable people who can help. Last is the making of the crossover if the High Pass and Low pass filters I mentioned before don't suit my needs. What I really like about these drivers from Onkyo's Scepter line is the flexibility to do what you want with them however you really prefer and in some of their catalogs and manuals, they have some diagrams on how to use them in certain configurations which is really helpful. I'm excited to hear how these will all sound together, especially owning a pair of E-804A Scepters and hearing the base and midrange that they produce alone; these will be incredible. I attached some pictures of the woofer and the tweeter, everything else mentioned is in accessible storage if one wants a picture. I will make posts as more of this project gets completed step by step. That's all for now! Thanks for reading!
 

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