Millercarbon's Mega Moab Mod Meander


One of the all time great automotive engineers, Norbert Singer, was a key player in every one of the 16 Porsche LeMans victories from 1970 to 1998. His dominance was such that at one point Porsche had won LeMans more than all other marques combined. This was all accomplished by building on the already solid foundation of Porsche production models. The air cooled flat 12 in the 917 was really two flat sixes combined to make 12. This car so dominated motorsport the rules had to be changed to stop it!  

So Norbert Singer modified Porsche production technology to extract the absolute most for racing. His legacy is today’s Singer Vehicle Design https://singervehicledesign.com Norbert doesn’t make for a very good car name so they called it Singer. What is a Singer? It is a modified Porsche. It is in essence a hot rod. What Norbert Singer did was make the most hot rod racing Porsche. What Singer does is take that to the next level, capturing every aspect of Porsche right down to excellence of design and aesthetics.  

I am not anywhere near the level of Singer. But that is the spirit of what we are doing: taking an already world-class design and hot-rodding it to be even better. Well, better for me anyway- or so we hope!

The early modders started with substituting off the shelf parts to get more power or less weight. That is pretty much all we are doing here. Would be cool if some day people are doing this with a lot more sophisticated approach. Maybe they will. Maybe even I will. For now though we have the current crossover project.

My approach is pretty simple: better parts sound better.  

This lesson was learned back in the late 90’s with Linaeum Model 10 speakers. The designer had a new tweeter and told me how to modify the crossover for it. Simple mod, one cap, one resistor. Bought the parts from Radio Shack, put it together, sounded like crap. Absolute horrid crap! Called him up, he said those parts are crap. Said Musicap, Vishay. But they measure the same? Just do it. I did. It worked. Even though they measure exactly the same, the sound difference is off the charts.  

Even though they measure exactly the same. There is a lesson here. For those willing to learn.

So this is the essence of it: Eric Alexander has made a speaker the equivalent of a Porsche 911. Even better: an affordable Porsche 911! But after a while with my 911, after learning what makes it drive and feel the way it does, it was only natural to change the shocks and torsion bar and other items to bring out even more of what I like so much about the 911.  

That is what we are doing here. Hot-rodding a speaker. Thank you Rick for the metaphor!  

The parts are on order. Next week the fun begins!
128x128millercarbon
bullitt5094, Ulf would be a much bigger project. Mine with the new parts will barely fit back in. Pretty sure a little cutting will be called for. My bet would be Eric follows the same pattern and you will find yours behind whichever driver is across from the terminals on the back.  

I have never seriously considered active because every time it runs into the stone wall of reality. Active means more amps, more power cords, more interconnects, more speaker cables. Every single one of these incredibly important they be done right. It just seems way too easy to give up more than you gain, and that is even before considering money. The parts for this will be almost $2k. The improvement should be staggering. But $2k will not be enough to cover even one good amp if I went active. A good thought experiment. But there is a reason we almost never see anyone doing this at a high level.  

So don't let imaginary perfection hold you back from making real progress. Even just replacing the resistors in there would no doubt be a big improvement. They are relatively inexpensive too- and might actually fit! ;)
@rixthetrick, thanks, very nice work you have done. Oh those chocolate looking Duelunds.
Chuck the sound will change (improve over time) as the caps settle in. 
I know there is a whole camp out there who have their opinion on that however that's what Bill mentioned in our conversations and I found him to be correct on that.
I agree with the concept of what you're saying Chuck, but in reality, most Porsche tinkerers have tuner shops do the upgrades of suspension, roll cages, etc. I don't know of many audio "tuners" out there, heck, there are hardly any repair shops.

You doing your own lab work is great, and there is a small number of audiophiles who want to get their hands this dirty. I am surprised there isn't a business out there seeking to upgrade crossovers and drivers in speakers, SS components, etc.

If the manufacturers can economically improve the sound, I would think they would want to. Once you start spending more on the product, you have to charge more, and the marketing positioning changes. What you are doing is providing the free labor and paying more for the parts. It's like that car show Wheeler Dealers where they try to make money fixing and improving used cars and selling them at a profit. When they do the summaries at the end of the show, they never appropriately value all the time spent by the mechanic, and even the main guy's time hunting around for various parts.

Just like older Porsches typically command more money for originality, I wonder what the market is for homemade upgrades on audio. Now, if they came from a manufacturer, that would be another conversation.