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post #181 of 253 Old 12-27-2011, 03:59 PM
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"The Center Channel/PA Column alignment like I built was designed to lie horizontally if it's for Center Channel duty."

there is no getting around the simple physics of off axis comb-filtering when a speaker like this is turned on its side. when the different distance between one driver and another playing the same frequency is 1/2 wavelenth, it will destructively interact and cause a big dip in frequency response similar to the response of a crossover network wired 180 degrees out of phase. if it doesn't matter to the listener, then great, but it is not accurate. if you can listen more or less on axis, then it will be fine, but might have floor/ceiling bounce that need to be dealt with just as uprights need to work with wall reflections.

Listen. It's All Good.
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post #182 of 253 Old 12-27-2011, 04:28 PM
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Quote:
Originally Posted by LTD02 View Post

"The Center Channel/PA Column alignment like I built was designed to lie horizontally if it's for Center Channel duty."

there is no getting around the simple physics of off axis comb-filtering when a speaker like this is turned on its side. when the different distance between one driver and another playing the same frequency is 1/2 wavelenth, it will destructively interact and cause a big dip in frequency response similar to the response of a crossover network wired 180 degrees out of phase. if it doesn't matter to the listener, then great, but it is not accurate. if you can listen more or less on axis, then it will be fine, but might have floor/ceiling bounce that need to be dealt with just as uprights need to work with wall reflections.

Some of your concerns are mitigated in the XO and the C to C spacing of the two mids can be reduced dramatically simply by offsetting the tweeter. The four drivers used as woofers are on the other end of a .5 inductor so no lobing issues with the tweeter either. Certainly, it's not ideal, but far better than commercial offered MTMs in the same price catagory.
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post #183 of 253 Old 12-28-2011, 07:16 PM
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Isn't the crossover the same across the entire line though, even the center channel?


Most of the cross overs I have seen from curt c typically have a different setup but they also have a different driver layout. This is the first speaker I have seen from curt outside of the tritrix that has the same crossover.
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post #184 of 253 Old 12-28-2011, 08:11 PM
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Quote:
Originally Posted by stgdz View Post

Isn't the crossover the same across the entire line though, even the center channel?

Most of the cross overs I have seen from curt c typically have a different setup but they also have a different driver layout. This is the first speaker I have seen from curt outside of the tritrix that has the same crossover.

You'll find on Curts page that the four woofers are after a 1.5mh inductor, which introduces an electrical LP filter for those woofers, separate of the two midrange drivers. It's a common network referred to as .5.......not truly a three way but no need for three when all of the drivers are the same. In this design, it works in both the vertical and the horizontal but as I mentioned earlier, if doing a horizontal CC I'd offset the tweeter upwards and get the spacing of the two mids as close as possible.
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post #185 of 253 Old 12-29-2011, 06:42 AM
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Quote:
Originally Posted by mayhem13 View Post

as I mentioned earlier, if doing a horizontal CC I'd offset the tweeter upwards and get the spacing of the two mids as close as possible.

That's a really good idea, Mayhem13.
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post #186 of 253 Old 12-29-2011, 08:36 AM
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Doesn't offsetting introduce other variables though? Lots of the center channel designs have the layout that you mention but the cross is diffeernt. Wouldn't the arrangement change the mid and tweet component values?


Also pi, how many sheets of arauco did you go through making these two?
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post #187 of 253 Old 12-29-2011, 09:00 AM
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The changes are likely very small, well worth offsetting. Diffraction is the only real concern. And woofer cavity effect I suppose, which is a form of diffraction. It would be very small.
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post #188 of 253 Old 12-29-2011, 09:03 AM
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Mayhem,

Just to make sure I am not missing anything, are you talking about moving the tweeter in the original design, if this speaker is used as a center channel or moving the tweeter for the specific center channel layout Curt shows on his page? Hope that makes sense. Thanks.

James
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post #189 of 253 Old 12-29-2011, 10:40 AM
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Quote:
Originally Posted by exojam View Post

Mayhem,

Just to make sure I am not missing anything, are you talking about moving the tweeter in the original design, if this speaker is used as a center channel or moving the tweeter for the specific center channel layout Curt shows on his page? Hope that makes sense. Thanks.

James

All the drivers are mounted along a center line, whichever configuration is used. Mayhem suggested moving the tweeter off-center, which would allow the mids on either side of it to be moved in closer.
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post #190 of 253 Old 12-29-2011, 10:48 AM
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Can you change the woofed distances also and bring them in closer? The cab would get narrower but deeper.
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post #191 of 253 Old 12-29-2011, 11:24 AM
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Quote:
Originally Posted by PassingInterest View Post

All the drivers are mounted along a center line, whichever configuration is used. Mayhem suggested moving the tweeter off-center, which would allow the mids on either side of it to be moved in closer.

Thanks PI.

I guess I just look at as if Curt felt changes would need to be made to the center channel design they would have been made. Just my 2 cents.

James
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post #192 of 253 Old 12-29-2011, 11:49 AM
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Exo, that was my thought as well. Its a cc design, how much simpler and elegant can you get.
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post #193 of 253 Old 12-29-2011, 01:17 PM
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I'll leave the final word to Curt. It's his design after all.
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post #194 of 253 Old 01-09-2012, 06:13 AM
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Nice write up of the Stentorions.

I'm just getting into building speakers. I just finished a set of stentorions for my wood shop. I've been doing woodworking for at least 20 years now and it was the funnest project I ever built.
When it came to cutting the holes for the drivers I was stumped on how to get the holes so precise. I ended up buying the Jasper jig combo pack. I,m not sure if you have one of these. Its definitely a handy little jig that will come in handy for me on future furniture builds.


On the back...Instead of leaving it open ,I made a speaker grill for it.


All in all a very fun build.
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post #195 of 253 Old 01-09-2012, 06:50 AM - Thread Starter
 
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The grill cover on the back is a nice touch and probably very practical in a few situations inside the house and in the garage. Still, I found it strangely appealing to have the crossover exposed. I think it brings out the nerd in me.

Nice paint job on yours. Very creative. My first thought was Flames. But then I thought it looked more like melted wax dripping down the cabinet walls. It looks great either way. A very nice touch.

I like your creative wall mounts.

How do you like the sound? I see you have the tweeters up pretty high. Does that negatively impact the sound quality for you? I'm sure it's a distance thing, so you might be fine.

I liked the ones that I had for the brief few songs that I heard through them before they got delivered.

I'm currently trying to think of a good excuse to build another pair, because I really want to build some of BeerParty's Curved Stentorians. Price is one great excuse already. I'll think of something. Wait a minute...Plenty of very creative people frequent this board.

Hey guys, does anyone have any good excuses for building another pair of Stentorians? Let's get creative here.
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post #196 of 253 Old 01-09-2012, 07:58 AM
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Excuse PM'd
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post #197 of 253 Old 01-09-2012, 08:40 AM
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I was just thinking about this thread. How did the guy like his gift?!
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post #198 of 253 Old 01-09-2012, 09:31 AM - Thread Starter
 
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Quote:
Originally Posted by tuxedocivic View Post

I was just thinking about this thread. How did the guy like his gift?!

He received them with excitement, but I haven't gotten any feedback on how he likes the sound. I'm not sure when his next gig is, but I hope he uses them soon. I think Curt would like the feedback from a ProSound use.
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post #199 of 253 Old 01-09-2012, 11:25 AM
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Quote:
Originally Posted by kidbeater View Post

I just finished a set of stentorions for my wood shop.

Quote:
Originally Posted by Dusty Shopfloor View Post

How do you like the sound? I see you have the tweeters up pretty high. Does that negatively impact the sound quality for you? I'm sure it's a distance thing, so you might be fine.

Typically you want the tweeters close to ear height. kidbeater, depending on how high they are mounted you may want to try flipping them over so the tweeter is closer to ear height. Mine are going to be off the floor as well, that is why I am using the mid tweeter version Curt included in his design write-up.

Chris

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post #200 of 253 Old 01-09-2012, 11:28 AM
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Originally Posted by Dusty Shopfloor View Post

Hey guys, does anyone have any good excuses for building another pair of Stentorians? Let's get creative here.

They double as terrific plant stands?
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post #201 of 253 Old 01-09-2012, 11:43 AM - Thread Starter
 
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They double as terrific plant stands?

Yeah! Now we're talking!
Keep the excuses flowing, guys.
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post #202 of 253 Old 01-09-2012, 12:27 PM
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...because they're not going to make themselves
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post #203 of 253 Old 01-09-2012, 03:28 PM
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They sound awesome, but not as good as they did when I had them in the house.I was planning on flipping the speakers upside down as was suggested to me in another forum. I just haven't got around to it yet. I'm doing a complete shop overhaul so I've been busy trying to get organized.
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post #204 of 253 Old 01-09-2012, 03:42 PM
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Quote:
Originally Posted by Dusty Shopfloor View Post

I'm currently trying to think of a good excuse to build another pair, because I really want to build some of BeerParty's Curved Stentorians. Price is one great excuse already. I'll think of something. Wait a minute...Plenty of very creative people frequent this board.

Hey guys, does anyone have any good excuses for building another pair of Stentorians? Let's get creative here.

You know I based my Stentorian design on your Howitzer Build, right? The ones you have in your house right now (according to pictures in post 147). You really should building some speakers that match the Howitzer's design so everything matches up better in that room. You are too good of a builder to have mismatching cabinets in your house.

There, how is that for an excuse?

Chris

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--Despair, Inc. "Regret"

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post #205 of 253 Old 01-09-2012, 07:15 PM - Thread Starter
 
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Let's see...
They make good Plant Stands.
They won't make themselves.
They match my Howitzers.
All great excuses to make a curved pair of Stentorians.
Thanks guys.
I'll have to back-burner the curved version for the time being.

But, I've also been handed a good reason to make a Standard Issue pair, by request.
I'm juggling things right now, but I hope to start on them real soon.
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post #206 of 253 Old 01-09-2012, 10:13 PM
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lets hear it for local excuses

any other thoughts on people that run these on how they sound??
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post #207 of 253 Old 01-10-2012, 12:31 AM
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Any thoughts on putting a cd in it in place of the dome?

Dumb enough to spend lots of cash on this junk!
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post #208 of 253 Old 01-10-2012, 04:35 AM - Thread Starter
 
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Originally Posted by flyng_fool View Post

Any thoughts on putting a cd in it in place of the dome?

For home use, these will get loud enough to run you out of the house, yet still sound really good. If you swap the tweeter for a compression driver and wave-guide as Mass-Mayhem is planning on doing, it won't necessarily improve the sound, but will improve power-handling. But if you do, these speakers will no longer be the Value Leader they are now. According to a recent post, Curt has had no complaints from anyone that they popped a tweeter.

I know Mayhem's CD version will sound great, but at a big cost increase. I'm sure it will be worth it for some people, but maybe not everyone.
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post #209 of 253 Old 01-10-2012, 03:44 PM
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Quote:
Originally Posted by Dusty Shopfloor View Post

But, I've also been handed a good reason to make a Standard Issue pair, by request.
I'm juggling things right now, but I hope to start on them real soon.

Care to share the details, or do we have to wait for the build to start?

Chris

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post #210 of 253 Old 01-10-2012, 04:18 PM - Thread Starter
 
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Originally Posted by BeerParty View Post

Care to share the details, or do we have to wait for the build to start?

I was asked to build a pair for someone, but he changed his mind. So the build is off. For now, anyway. It appears that I'll be building a pair of cabs for two Mael 18s instead (not mine).
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