A Second First Date (DR200s with Ribbons)

[dougc]

Yes! Love me some DJ Die beats.

Also... event video. Camera audio only,

That sounds petty good, but you should get some binaural microphones, they are microphones that are mounted in or near the ears, the resulting effect is almost spooky in it's realism.

PS: it does look a little non busy in there, maybe you could suggest they mix up the slow dance material with
some Drum n' Praise? I'd come.

[88h88]

Praise da lord!



I sometimes forget how rough Stigma is as a track... Daaaaaaaaaaaamn

[BrentEvans]

Dayton Audio PT2C-8 Planar Tweeter

http://www.parts-express.com/pe/showdet ... er=275-085



Beston RT002A Ribbon Tweeter

http://www.parts-express.com/pe/showdet ... er=277-112

Thanks -- Robb !!!!!!!!

The beston is not as good as the dayton. Two in an Beta or 2512 OT12 should keep up about as well as they don in a Beta DR200. They wouldn't keep up with a 3012HO. Biamp only.

[stduncan]

Hey BE;
Which ribbons did you use? That vid sounds great.....

Jujuman

Dayton PT2C-8, 2 per cab in series. Spacing was done so that when stacked, the individual ribbons are equidistant. This means they're cheated slightly to the outside from perfect center on the cab.

Are there any issues with the ribbons not being right close together vertically?

[BrentEvans]

Hey BE;
Which ribbons did you use? That vid sounds great.....

Jujuman

Dayton PT2C-8, 2 per cab in series. Spacing was done so that when stacked, the individual ribbons are equidistant. This means they're cheated slightly to the outside from perfect center on the cab.

Are there any issues with the ribbons not being right close together vertically?

Holy thread resurrection Batman! 6.5 years might be a new record.

Theoretically there might be some interactions from the distance, but it wasn’t noticeable as the interaction would be close to the cab and high frequency in nature.

[Mac The Sound Guy]

Hey there, I'm looking into using the same PT2C-8's for a build coming up soon! I'm having a hard time deciding between The Otop 8, the Otop 12 J array version, or the Jack 15. I could also go with something like the SLA Pro, but it just depends! Do you think one of these designs would work better than the others with the PT2C-8? Thanks!
I am looking to build up a system that can rival a small Funktion 1 or Void Acoustics system. I currently have 2 Tuba 30's at 24" wide and I'm currently working on a 30Hz horn design I found over at speakerplans for the 10x-16x JBL 2226H drivers I have on hand.... *Maniacal laughter*
Someday I want to make some T48s as well, but that's for some point in the future!

[Bruce Weldy]

If you are planning on stacking two OT8s or OT12s, then you'll have to put the Ribbons on the bottom of the top box and top of the bottom box to couple them.

They are too wide to go in an SLA Pro without some kind of mod to the plans as far as I can tell.

[Mac The Sound Guy]

So would the ribbons need to stick out proud of the box slightly? Or would I be able to get away with 3 ribbons coupled one right on top of the other? The dimensions of the PT2C-8 and the external dimensions of both the OT8s and OT12s seem as if they should support it. I don't have the plans for anything except the Tuba 30 :/ I'm thinking about getting the USB of all the plans, but that's still up in the air!

[Bruce Weldy]

So would the ribbons need to stick out proud of the box slightly? Or would I be able to get away with 3 ribbons coupled one right on top of the other? The dimensions of the PT2C-8 and the external dimensions of both the OT8s and OT12s seem as if they should support it. I don't have the plans for anything except the Tuba 30 :/ I'm thinking about getting the USB of all the plans, but that's still up in the air!

It depends on the box. The OT8 is taller than the OT12. How many are you planning to build? Also, at $80 each for the ribbons, why not just use the single CD suggested in the plans in an OT12? You'd save money using one driver instead of two ribbons and be able to use the 1.2khz crossover option.

Kinda' the same argument on the OT8, why put 3 drivers in that box as opposed to two? It costs more and more than likely, the three driver option would outrun the woofers....and would probably take a change to the crossover to balance the two unless you are going to bi-amp the boxes.

If you are set on trying the ribbons, then start with one if building an OT12 as the crossover would be correct for an 8 ohm ribbon. On the OT8, you could use two to match either the 2k 4 ohm high pass or the 16 ohm high pass.....depending on whether you wire series or parallel.

Making decisions on which components to use based on the physical dimensions is not the right way to do it.

If you are going to invest the expense and time to build one of the OT designs, use the correct components and you'll be insured of having a great sounding box.

Bottom line, you might make 'em work if you consider the sound implications and not the size issues - that will mean some adjustment on the number of ribbons and where you position the ribbons in the box if you are going to stack two of them.

Remember the old saying....."Just because you can, doesn't mean you should."

[Mac The Sound Guy]

Really appreciate the feedback!

I mainly wanted to go with the ribbon drivers as I currently have a pair of SLS LS8695 Loudspeakers that utilize 8x 6" midrange speakers and 9x 5" ribbon tweeters in a column array and they sound other-worldly. So I wanted to see if it even made sense to try one of these boxes with the ribbons so that I could get lower extension than what I currently get with the LS8695's. They are incredible speakers, but they roll-off pretty fast after about 150Hz.

I also would be Bi-amping everything too, I currently don't have the same limitations I had 13 years ago when I joined the forum in high-school haha. I have access to many more toys now than I did all those years ago! I now work professionally in the live sound and A/V business and usually mix on a rig of 8-16 RCF HDL-30A line array boxes with 4 RCF 9006AS subwoofers. Just about everything we do from rock, to rap, to country, to corporate sounds effortless on this system!

I'm thinking about building around 8 Boxes total by the end of everything (whether that be OT12s OT8s or...?)
My co-worker and I are planning on building up a sound system over the next few years that we can deploy for mainly "Bass Music" shows (which we don't currently do at my company, but that could be a potential down the road) We want to have a system that is completely homebuilt but can compete with F1 and Void sound systems (small ones of course, at first)

That's why I knew I needed to come to Bill's website, he has all the best horns!

[Bill Fitzmaurice]

If you plan on stacking more than two high it's critical that the tweeters account for no less than 90% of the height of the box, so that will affect what you're able to use.