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
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.
rushfan71 yes I am sure they will! Ted Denney tells me it is time not power level that soaks and equilibrates dielectrics, so just leave on 24/7 for a week. The Melody blew a tube last week, have been running it on an old spare backup set, might just leave it one and see what happens. At least the first few days anyway, I am off this weekend and next Mon/Tues.  

Great news! DHL notified me my Townshend Pods are out for delivery! I will have them today! Thank you John Hannant for getting them out so fast! 

Was thinking the crossovers would have to go in without, then add Pods later. Now it will all be in one fell swoop! Yes!!  
sokogear, I am working on another project in tandem with this one. That one in some respects is actually ahead of this one. What I mean, it has passed proof of concept. It has been done. It works. The challenge now is to figure out how to make it cost effective, to sell at a profit and still be good value, and of course to be something people can actually use. 

Because yes there is a skill level, and there is time. There was a time we had Dynaco and Speakerlab and even today we have some kits people can get a lot for their money if they are willing and able to turn a screwdriver and solder. That is about the level we are talking. That is the way I started, building a Dynaco ST400 in High School.  

This current project, everything all-in is well over $2k. Probably close to $3k if you count the BDR, Mats, and Pods. Some of this like BDR was already here just sitting around left over but you get the idea. One guy on FB was wanting me to make him one- until I said $2k just in parts! 

BUT this is more a learning curve thing than an actual problem. The learning curve is what all us who have done mods know very well, that manufacturers always use the cheapest possible parts they can get away with! This means the guy with mere soldering skills can easily do a $5k or even $10k upgrade for $1k worth of parts. We who have done this know this. Problem is hardly anyone else gets it. 

That is my big motivation for doing this. Already know very well these punch way above their weight even in stock form. With this crossover upgrade, forget about it! Mine are 194 & 195. There are probably by now 200 pair out there. Ten percent market penetration would be huge, but even that would only be 20. So whatever I do will be with the thought in mind there could be a market for this- of a whopping 10-20 customers. Maybe. 

Michael Spallone does something like this. He figured out a great cap and diode mod for Synergistic Active Shielding MPC. I know, I bought it. Because even though I can DIY he is the man who knows which parts really sound the best. So it would be like that. IF I can get the wiring figured out AND find some really primo wire AND figure out how to deliver something your average motivated screwdriver solderer can handle... but yeah you are right. Any way you slice it, huge amount of work to sell only a small number, just not worth it. 

That is the challenge all these manufacturers face. Eric's real genius was to figure out a better way of using the same parts to deliver sound at a level no one can touch at that price point. If he made them like mine, even though he would pay maybe $1k for the parts that cost me $2k that would still wind up being $3k for him to profit. At that price people look and see Encore has more drivers. There we are back at the learning curve, they see more and better drivers, crossover components are hidden inside, the average customer just does not and probably will not ever get it. 

Oh well. We do. Man am I stoked for this weekend!!!
@danvignau
Are you talking about the 1992-1995 turbo MR2?
You can get Japanese ones with no t-top at all, my friend had one, and it was a little go kart.
A decent body guy could do a cut and shut and you'd be in the business mate! Hardtop MR2,just like it was factory.


Come on MC even if it’s just one photo of where you’re at on the crossover?? I wanna see