![]() ![]() I'm sorry it took forever to make it happen but its finally here as of today. So now you can order it without having to send me a special request under the table, etc. we have finally made the Signal Art direct box 'official' and finally given it a home here on the website. people like these builds, and many people who also do re-amping like to 'complete the circuit' using an all SAE path if they can. It's just a well built box, made from what I consider the best available transparent/wide bandwidth DI transformer. I guess part of the reason I never released it as a product was because (unlike my ReAmp), I didn't feel like I was offering anything new with it. It's never been on my website, always by request, and I've always just taken the requests and milled them out on a drill press from a standard enclosure, and sold it directly. Direct boxes, I've actually been making even longer, all the way back to some time in the 1990's, and there have been even far more permutations! I make them every year for clients, usually based around Cinemag's or Jensen's premium direct box transformer (I've made half a dozen this year probably) yet for some reason I never got around to 'making it official'. I've been making some version of my ReAmp design since around 2002 or 2003 (over twenty years), although its gone through several permutations. type devices.Now let's talk about the DI box, the new guy in town! Well, sort of. I'm sure I'm not the only one who noticed that he only seemed to appear when someone would bring up the subject of homemade ReA. But when he showed up on the other messageboard and started attacking me for expressing an opinion on his circuit and the patentability thereof, including false accusations of endorsing competitor's products, which I never did-well, that left a pretty poor impression on me, and apparently others as well. I don't know the guy and have never used his ReA. I don't think USPTO reviews the claims as carefully as they should. Patenting obvious circuits, or circuits which are already disclosed in prior art, is not unheard of-just ask Mesa-Boogie, they've done it. My circuit, Jensen's circuit, and probably twenty other possible variations should work just as well. No need to build it as shown and risk violation of patent. I doubt there's any magic in the "official" ReA. ![]() This should give you plenty of signal for the guitar amp.Īs I stated on the other messageboard-thus incurring the wrath of J.C.-it's a simple problem with a fairly obvious solution. I assumed +4dBm -40dB pad +16dB for transformer should give youĨ6mV across the pot. Since you need to throw away levels in this application the connection of 1:3.5 may work better for this transformer. Warning any transformer may need the termination resistor to get best square wave response. Wire it as a 1:7 stepup with High Z going to the guitar amp through the output pot. If you assume a high quality DI transformer like the Lundahl L1530 (to simulate a guitar speaker roll off above 5Khz). XLR connector to a ballanced H pad PAD assume 40dB for now. Think like this a "passive DI box backwards". US6005950 in the "View Patent Application" box to search for any US patent. ![]() General link: Hint Put US before the patent # If you have real Acrobat, open page one and keep adding pages behind page one! Then save the multi page file. ![]() It gives you PDF's although one page at a time. ![]()
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