VERY nice looking ride.
There are some people dropping their cars around here... and they regret is very quickly!
It's all bumps and alley accesses with a rise or drop, so they all get their front fenders broken off.
I have a truck! and even sometimes, I feel I need more clearance! 😀
I only chose a slight drop, and Koni Sport shocks. It totally transforms the car. An instant love affair 😀.
Still, it's one cm lower than Audi's top model of the time, the Audi TT Quatro Sport.
I've only driven low and stiff sports cars for years (for most of my life). So the Audi felt like a SUV to me.
I left enough clearance so I can safely travel our roads, speed bumps and what not. Most of the young Euro Scene
nowadays drop with wheels tucked into the fenders, sporting wide rims with quite narrow tires. I'm still old-fashioned
with wide tires and a sporty drop at max. I like the way it drives and how it looks. Like it means business.
(yeah, looking back at my rides I've always been in some sort of midlife crisis, as apparently, I never did grow up 😀)
Somehow I always expected to end up with a big car collection, but in the end, i just like to drive them, not collect them as much.
But this has been the first time since I was 22 that I only have one car. Almost feels naked.
Still, it's one cm lower than Audi's top model of the time, the Audi TT Quatro Sport.
I've only driven low and stiff sports cars for years (for most of my life). So the Audi felt like a SUV to me.
I left enough clearance so I can safely travel our roads, speed bumps and what not. Most of the young Euro Scene
nowadays drop with wheels tucked into the fenders, sporting wide rims with quite narrow tires. I'm still old-fashioned
with wide tires and a sporty drop at max. I like the way it drives and how it looks. Like it means business.
(yeah, looking back at my rides I've always been in some sort of midlife crisis, as apparently, I never did grow up 😀)
Somehow I always expected to end up with a big car collection, but in the end, i just like to drive them, not collect them as much.
But this has been the first time since I was 22 that I only have one car. Almost feels naked.
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I fell in love with wide tires when the neighbor dropped by with the Countach, those rear tires were so wide, it looked like they could tear asphalt away from the road!
Glad you have many "loves" still in your life!
Cars, Towers, family... they are all important... just to stay sane! 🙂
Glad you have many "loves" still in your life!
Cars, Towers, family... they are all important... just to stay sane! 🙂
I worked for 10 years with line-arrays?
So I do think I have an understanding how they work.
I also do think a couple of things are being overlooked here.
Point is, ok fine if things have been discussed, just simply refer to the post instead of assuming that someone even has the time to dig through 7000 posts?
Not a single person in this world with a paid job has even that time?
That's just a bizarre thing to ask anyone.
fyi, I NEVER EVER said that my opinion is better?
That's words you put into somebody's else's mouth.
The only thing I did, is dropped an idea down.
What really puts me in the very wrong direction, is just the simple fact that somebody has a thought about a concept.
Instead of responding to it nicely, that person is basically leveled with the floor.
Not even considered that that person has to say.
You have vented some, now it's my turn (again). If you believe some things have been overlooked, that's fine, that would be your opinion. It does come over to me that you really don't "know' me very well yet. Just because some things are done differently to the way it always has been done doesn't mean it was done 'by accident' or 'uninformed' or even 'wrongly' but it was done on purpose. I never just 'do' something. Lots of time is always spend researching (and weighing off the risks) before I even make a first move. So I could get all worked up just because you said 'overlooked'. 😉
--10 Years of what kind of array. I think we all would be way more interested in that than continuing this style of posts.--
The truth is, you never did respond to the actual words written. I typed in a lot of them, I know. But that's just my writing style because I want or try to to 'unload' my thoughts. I only got a partial reaction from you. You went over it quite quickly to get back to your ideas/suggestions. Nothing new (to me) was presented though, sorry.
Other members typed in their response as well, your rebuttal wasn't showing you got their true intend either? Post #7324 doesn't seem all that hateful or negative to me? Quite the opposite in fact. It just tried to explain that there is history behind the choices made. Yet, it fired you off, but it didn't say: go read it all. It was just meant to be informative towards you that there is history behind it all. At least, that still is how it reads to me.
I see more than one doing that. Dropping your credentials to give it body worked against you in that regard. I get it that it wasn't meant like that. But words on a screen can always be given different meaning if you don't "see" the intent. I use emoticons liberally to express myself. Some times I think I overuse them. But it is quite hard to make sure the other party is "getting the point".
Quite frankly, you dropped into a thread full of ideas, certainly not all mine. If it exploded on you it just might not be everyone else that is to blame.
I don't think I'll say more on this. This has always felt like a place where we could vent on all topics related to the subject without getting into this type of thing.
If it was new to you, it sure was new to us or this thread as well.
It's bad for my heart (lol).
Disclaimer: -- neh... that last sentence wasn't serious!--
If b_force can accept the fact that we've made an informed decision, and know and are aware of the risks involved, I'd like to think it is.
(and that the recent posts may have been intended with way less harm in mind than was assumed for all parties involved)
I'd hope it's closed, not disclosed 😉.
(and that the recent posts may have been intended with way less harm in mind than was assumed for all parties involved)
I'd hope it's closed, not disclosed 😉.
Spending an afternoon trying to figure out how to distribute the impedance curves into valid groups.
It is slightly different than one would need for an unshaded array, as there is some added resistance to certain groups due to the added filters.
Basically the goal is to have an average equal impedance across the board for all groups. Making the average of the peaks line up as well.
Here's a first attempt, showing all 5 groups and the resulting impedance:
As seen, the groups don't have an exact peak match up, as it's hard to line it up that way due to the added resistance of the added filters.
The peak values line up though, and if all goes well, the other array will be the same. I first divided all drivers into matched pairs,
upon which I started to group them by their peak Hz value. From there on I created groups of 5 to have the average line up at the
same frequency. I could try to get the peaks to match as well, but more importantly, I wanted to see what it did for power distribution
with the filters in-line:
Power distribution with 100 watt applied to the array (8 ohm load, 5 series, 5 x parallel).
Red is the middle unfiltered drivers.
Black is the top group of 5, that only helps out on the bottom end.
Blue is the group that is split above (2 drivers) and below (3 drivers) the middle unfiltered group.
The remaining groups are quite similar, 5 on bottom end, 5 drivers below the black top group and above the split group.
The single line deviations are the notch filters I added later on. (to make up for the split up of the blue group)
I think I can live with this arrangement. Provided the other array looks similar 🙂.
It is slightly different than one would need for an unshaded array, as there is some added resistance to certain groups due to the added filters.
Basically the goal is to have an average equal impedance across the board for all groups. Making the average of the peaks line up as well.
Here's a first attempt, showing all 5 groups and the resulting impedance:
As seen, the groups don't have an exact peak match up, as it's hard to line it up that way due to the added resistance of the added filters.
The peak values line up though, and if all goes well, the other array will be the same. I first divided all drivers into matched pairs,
upon which I started to group them by their peak Hz value. From there on I created groups of 5 to have the average line up at the
same frequency. I could try to get the peaks to match as well, but more importantly, I wanted to see what it did for power distribution
with the filters in-line:
Power distribution with 100 watt applied to the array (8 ohm load, 5 series, 5 x parallel).
Red is the middle unfiltered drivers.
Black is the top group of 5, that only helps out on the bottom end.
Blue is the group that is split above (2 drivers) and below (3 drivers) the middle unfiltered group.
The remaining groups are quite similar, 5 on bottom end, 5 drivers below the black top group and above the split group.
The single line deviations are the notch filters I added later on. (to make up for the split up of the blue group)
I think I can live with this arrangement. Provided the other array looks similar 🙂.
Second array added, I guess the trick worked to first make 2 near identical groups. You can't see much of a difference here.
Power distribution in these groups:
Small, very small differences. I might be able to adjust it just that little bit.
If not, I can be happy with this result though. Looks quite even.
There. Second array is sorted.
Starting over, X-Sim crashed on me. 3rd time today. Failed to open a saved file.
Attachments
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Able to redo it quickly, all done. And saved both of the schematics with driver numbers corresponding to the impedance plots.
So 50 drivers marked with a fixed spot in each array 😉.
(every once in a while I have a problem re-opening a schematic made in X-sim. I do make reserve copies but apparently not often enough)
So 50 drivers marked with a fixed spot in each array 😉.
(every once in a while I have a problem re-opening a schematic made in X-sim. I do make reserve copies but apparently not often enough)
Impedance of all groups and final curves of both arrays.
Close up of both averages. Spot on. If it turns out like this in the final build I'd be very happy.
(damping and enclosure is bound to make it look different 😉)
I tried a few different ways to sort the groups. As far as voltage or power distribution at the impedance peak goes, sorting them by impedance peak definitely had the best results.
That showed a very even distribution of energy at that point. However, the wattage used at the rest of the spectrum showed way larger differences. So in each group of 5 drivers, it looked like they did not (get to) use equal power, at least not as well as the prior way of grouping them.
I did tweak the results slightly to get each group as closely bundled as I could for power consumption over the widest area, while keeping an eye on the deviation at impedance peak.
Had too much spare time as the weather wasn't that great to go cut some driver frames 😉.
That showed a very even distribution of energy at that point. However, the wattage used at the rest of the spectrum showed way larger differences. So in each group of 5 drivers, it looked like they did not (get to) use equal power, at least not as well as the prior way of grouping them.
I did tweak the results slightly to get each group as closely bundled as I could for power consumption over the widest area, while keeping an eye on the deviation at impedance peak.
Had too much spare time as the weather wasn't that great to go cut some driver frames 😉.
so with the change to the 10f's is there any subjective aspects that stick out i.e. increased sound field, better imaging, personal satisfaction of a job well done and yup i'm still curious as to the fate of the remaining Tc9's....
