PM me and we can discuss.

Best,

Steven

I'll keep you posted on the progress.

Unfortunately I can't measure anything for the time being, but I will share my test results as soon as I receive the Tascam US-366 I ordered to connect the microphone to my PC.

Nice job and such progress for just weekends...

The efforts will be paid back in years of listening pleasure.

Keep us posted!

Bert

I too underestimated how much work it takes to create one of these. You did a very nice job.

Keep the pictures coming.

This is my first post on this forum, but I've been following for a while, especially regarding the Orelo projects.
I've had the chance to listen to the Orelo at Bert's, and decided to have a go at building a pair of these.

It's been a couple of weeks now, I sure did underestimate the time it takes to build one of these, and today I finally got to perform the first tests

I still have to put the back panels on, veneer this first Orelo and obviously the mid-high Oris horn is still missing, but the first test was successful.

I haven’t been able to measure anything so far, but based on the sound quality they should measure just fine.
Very nice and deep bass response while very clean and well controlled

I’m looking forward to building the second one and fine-tune everything in combination with the Oris horns.
As I can only work on them during the weekend it will probably take a few more weeks, but it’s certainly worth.

Hereby some pictures:

Thanks a lot Bert for the design and all the help you’ve provided.

Best regards,
Diederik

The Orelo fires a lot more energy forward (boosted) compared to the rear energy giving it less a cancellation problem (between rear(wall) and front waves) compared to a normal open panel design.

Less issues with placement and less issues with phase problems as a result.

This means that I can make a smaller Orelo being 50cm wide (same size as the Quasar as an example) giving a better performance (more dB's in the bass) compared to a flat design.

Looking better too...

Bert

The wings certainly make a difference.

The thickness does make a difference in rigidy but the wings basically do the same making it all more stiff. Another design feature for the Quasar is that you can cover the whole so it looks like a normal flat speaker without anything sticking out. Most women do not like to see the techical parts...

For the rest the Quasar is just a "simple" OB speaker.

Bert

Hi Rudy,

You should know this yourself... imagine the Orelo without wings which is then basically the same as the Quasar.

Bert

Bert,

I was aware of the basic performance based on my outside measurements. I did not know if the thickness of the Quasar had any positive effect on the low end which is where I mostly saw a difference between the baffle alone and the wings added on.

The wings certainly make a difference.

You should know this yourself... imagine the Orelo without wings which is then basically the same as the Quasar.

Bert

I was looking into various open baffle designs and ran into something called the Quasar. A quick Google search led me right back here to your Quasar MKII design. What a funny coincidence!

So, how do you find the comparison between your designs? Granted, your Orelo has 4 drivers, but am curious as to the performance difference of 1/2 an Orelo and the Quasar.

Very interesting!

At some point, I might look at that myself just for fun. The way I built mine, it will be easy to keep the baffle and change out wings ad desired.

Thank you for all your help and the great idea.

Glad to be helpful with good working out ideas... in the meantime there were several smaller "Orelino's" being designed in my head already, very soon I will start cutting and experimenting further for those with a low WAF using the advantages of the basic principles used.

Enjoy listening!

Bert

Your design works extremely well, very clean and efficient. I ended up having to reduce the sensitivity on all three amplifiers powering the DIY Orelo's when I was running frequency response plots.....just proved that the Orelo concept is more efficient than the ported enclosures I was using.

Thank you for all your help and the great idea.

I am crossing from the DIY Orelo to my HF horn at 780Hz based on the performance of both sets of drivers.