Another impressive Design from Troels

[meb46]

And yet another impressive design from Troels... and I wont even start on the exceptional woodworking skills!

http://www.troelsgravesen.dk/Illuminator-5.htm



Anyone considering building these? Would love to hear first listening impressions! The one thing Troels doesn't share

[tktran]

I have the greatest respect for Troels, and have been following his website for over a decade.

But for the life of me, I can't fathom his designs decisions and what's driving them. They are getting bigger and bigger and more complex. I mean, a 5 way 10/8/7/4/1" vented box with a 5 way passive crossover??

Why not go for broke and have a 15/12/10/8/7/5/3/0.75" 8 way?

Its gotta be better...

[Steve Manning]

And yet another impressive design from Troels... and I wont even start on the exceptional woodworking skills!

http://www.troelsgravesen.dk/Illuminator-5.htm

Anyone considering building these? Would love to hear first listening impressions! The one thing Troels doesn't share

The guy does make it look easy doesn't he ...... Lots of practice me thinks.

[Jonasz]

Love the 5-way thing but why on earth go for a so advanced (ugly 8O ?) box that only a handful of people will be able to build?

[TEK]

But for the life of me, I can't fathom his designs decisions and what's driving them. They are getting bigger and bigger and more complex. I mean, a 5 way 10/8/7/4/1" vented box with a 5 way passive crossover??

He does claim that he get a better sound transition, is able to use the elements in there comfort area as well as is getting a lot more clean dbl out of this design - so he seems to be doing it because he think it gives a better result.
But you have to wonder if he get's some provisons from scan-speak - a LOT of drivers in that big boy

Love the 5-way thing but why on earth go for a so advanced (ugly ?) box that only a handful of people will be able to build?

I suspect he is inspiered by Wilson Maxx



When you look at the hardwood edges, the rounded top and so on I think I have made much of it to make it look good.
Not the type of looks I prefer dough... Seems to be quite an advanced build as well.

I think Jon made something with a similar type of design one time back in the good old days. BIG speaker.

[Face]

Using two different sized woofers is absolutely silly. And IMO, a facetted cabinet would be much more aesthetically pleasing.

[5th element]

Lets not forget that Troels likes to appeal to the masses and I more get the impression the more audiophile orientated market rather than the more technically adept of us.

He is simply trying to copy the aesthetic and design ideas that Wilson follow and he's done this a couple of times in the past too. A good idea for impressing people, but certainly not for design replication.

I really do enjoy his website but I often question his design ideas on a technical front. Occasionally he'll get it right though.

[---k---]

Interesting design. Doubt I would ever build it. I would love to hear it.

Did Troels seriously use NPE caps in the woofer?



I've done it. Nothing wrong with it. Just didn't expect it from him.

[Face]

1000uf+ worth of film caps would take up a considerable amount of real estate.

[dar47]

This one was after "the Next", so Next Next. The next one should have a 12", 10" 8" mid, 5" mid, tweet and finally a super tweet, haha.

What's with the funky wedges under the mid and tweet. The tweet is set back from that front sharp lip, is this adjustable front and back for tuning. Whats with that tweet choice you have room for a normal one in the lineup. I don't know some parts of this cab design are complicated and fit well together other parts looks like an after thought, not sure especially at this price point. I've built his super mini's which are great but I think he losing it or running out of ideas some where after the Janzen / Ellam builds. Also seams tentative to go bigger and get a real base section with these almost monsters and I agree whats with the 2 different base drivers. Maybe Scan said "close your eyes I have something for you, your next mish mash that no one else would try",Haha.

[JonMarsh]

I have the greatest respect for Troels, and have been following his website for over a decade.

But for the life of me, I can't fathom his designs decisions and what's driving them. They are getting bigger and bigger and more complex. I mean, a 5 way 10/8/7/4/1" vented box with a 5 way passive crossover??

Why not go for broke and have a 15/12/10/8/7/5/3/0.75" 8 way?

Its gotta be better...

That will be next....

I mean, I bet you never thought you'd see production street cars with 9 speed transmissions, either. But they're here.

[JonMarsh]

Interesting design. Doubt I would ever build it. I would love to hear it.

Did Troels seriously use NPE caps in the woofer?



I've done it. Nothing wrong with it. Just didn't expect it from him.

Wow... most of those crossover parts make my skin crawl.... mind you, I've bought and tested them, and even used them in the case of the C-core. I can see using an NPE in an impedance control network where it's not really part of the signal path, and where the ESR is a small part of the total net series resistance. (doing that in the Isiris Monitor Model One). It's all about trying to make the right trade-offs cost wise. The bobbin inductors are not too cool, though...

[JonMarsh]

Well, gee, guys, I think Troels has been spending too much time in the vicinity of the Wilson Audio factory! :W

One of the things about having a super adjustable design that concerns me is that they're are many ways to get it wrong, and really only one way to get it right- of course, that is being a bit narrow minded about where the listening position should be, and I suppose this gives flexibility for adjusting so many drivers to get it optimized at one point.

I do applaud the 12MU choice - I really like the 7" illuminators, but they don't match up well with very many tweeter setups- they require a low and steep crossover to attempt that. (particularly the aluminum one I prefer).

I don't have time to look this over carefully today, or maybe even this month, but I will at some time. OTOH, I can't help but think that Steve Manning has a better idea if one wants to "go Wilson".... one we're kicking around.

This might be called the Isiris Monitor Model Two. The floor stander, with the C18EN001, and dual SDX10's wired in series, with SS PR's galore... (you know, some's good, more is better, and too much is just enough?




No adjustability per se for aligning two midranges and a tweeter... none needed.

Steve might even offer it in colors other than racing red, too! :W :B But that's his choice- he's the one with the mad chops in Sketchup!

This cabinet is setup (if I recall correctly) for the QB3 style alignment with 2 PR's per SDX10. Working response in room down to 25 Hz, with just a titch of boundary reinforcement.

Image not available

[Renron]

Well, If both Jon and Troels like the SS 12Mu then I guess I can live with it in my Ardents. LOL
Ron

Yeah, I agree that's not a very "eye candy" design. Much prefer the Osiris style.
Ron

[sdl2112]

Well, gee, guys, I think Troels has been spending too much time in the vicinity of the Wilson Audio factory! :W

One of the things about having a super adjustable design that concerns me is that they're are many ways to get it wrong, and really only one way to get it right- of course, that is being a bit narrow minded about where the listening position should be, and I suppose this gives flexibility for adjusting so many drivers to get it optimized at one point.

I do applaud the 12MU choice - I really like the 7" illuminators, but they don't match up well with very many tweeter setups- they require a low and steep crossover to attempt that. (particularly the aluminum one I prefer).

I don't have time to look this over carefully today, or maybe even this month, but I will at some time. OTOH, I can't help but think that Steve Manning has a better idea if one wants to "go Wilson".... one we're kicking around.

This might be called the Isiris Monitor Model Two. The floor stander, with the C18EN001, and dual SDX10's wired in series, with SS PR's galore... (you know, some's good, more is better, and too much is just enough?




No adjustability per se for aligning two midranges and a tweeter... none needed.

Steve might even offer it in colors other than racing red, too! :W :B But that's his choice- he's the one with the mad chops in Sketchup!

This cabinet is setup (if I recall correctly) for the QB3 style alignment with 2 PR's per SDX10. Working response in room down to 25 Hz, with just a titch of boundary reinforcement.

Image not available

Another great design concept! I hope this come to fruition.

I think Troels is working on a design with the C18EN001 also so it should be interesting what he comes up with.

I too have ideas for the C18...but I need to finish my current project...this stuff is addictive :B