Great thread as usual Andy, keep up the good work.

Craig

Dave M's presentation had been scheduled to start at 7:30 so Lee posted that the draw would take place at 8:30 ish. Meanwhile, you hungry vultures had all logged on for the prize draw! We were all taking our seats to listen to what Dave M had to say so the prize draw will have to wait until he has finished.
Simon, who was driving Lee's van, is in the light blue jumper next to Lee. You'll notice he is an accomplished pick-pocket.

The guy second left seems fascinated by the design on the carpet!

Thankyou Craig, Peter and Lee for your kind words, it makes seem it worthwhile for me

To start the presentation, Dave J introduced himself and Dave M to us, then started a demonstration of different types of music played through each of the three ALT type speakers. 5s, 9s and 3s.

Let's hear it for Dave Moulton!

Dave started by showing us how the Beolab 5 automatically callibrates itself to suit the room it is in.
Here he is pointing at a little microphone that 'magically' emerges from the bottom of the speaker. The speaker then emits three or four tones at different levels which the microphone detects. The onboard computer then works out the optimal output for this room, with this amount of people in it, and this amount of furnishings. Amazing!!
Apparently, the computer in Struer that sets Beosound 9000 to give the right output, is not as powerful as the one in each Beolab 5!

Happy to see you've started your thread Andy. I've enjoyed everything so far and look forward to more!

Thanks Henry

Now, you will have to forgive my ignorance over the next few threads as I am not very technically minded, and the next three pictures are of pictures of pictures so are not the best!

Dave, please correct any inaccuracies, don't sue me!

The acoustic lenses as we know them were a bi-product of an experiment to get more sound out of a tweeter.
What Dave and his team did, was to fire a tweeter into two kind of dishes made of hardened clay, in the hope that this would make a louder, directional sound. These concave indentations were, for obvious reasons, nicknamed 'The inverted Dolly Parton', and where the focal point of both met, generated a 'phantom' tweeter.
I believe they are in the top, black rectangle on this picture.

Thanks Dave, it's nice to know you are on my shoulder

Once it was ready, it was introduced to David Lewis the designer. Having heard it, he said he would like to make a speaker that sounded just like that .......but didn't look like it!
His wife Mariane at first didn't want it in the house but she relented when she heard it, and it was in David Lewis' house for 9 months.
It was David Lewis' idea to put the acoustic lens high up, on a neck above the bass complex of the speaker.
Here is a picture of Dave M with David Lewis. (I always think David Lewis looks like a Terrier!)

That was a guess! I never heard of TWBL before!

Dave Moulton:

The speakers that David Lewis got were the first B&O prototypes that combined the acoustic lenses with Adaptive Bass Control.  They were the Truly Ugly Monstrosities!  But they sure did the job!  

Best regards,

Is this the one that looks like a washing machine on wheels? just tried searching for a pictue but gave up. Seem to remeber one been taken of one on the trip to Struer.

Craig

Craig:

Dave Moulton:

The speakers that David Lewis got were the first B&O prototypes that combined the acoustic lenses with Adaptive Bass Control.  They were the Truly Ugly Monstrosities!  But they sure did the job!  

Best regards,

Is this the one that looks like a washing machine on wheels? just tried searching for a pictue but gave up. Seem to remeber one been taken of one on the trip to Struer.

 

Craig

Perhaps if you'd searched for a picture instead??

(Sorry but it is Wednesday)

This works great Dave!
I tell half the story then you sort it out. Wonderful. Thanks mate.

Yes Craig, I remember that picture too. It wasn't on my Struer thread though. I'll see if I can find it.

Found the picture of the prototype.

Craig

Jandyt:

That's the one. Where did you find it? Was it by one of us Struer visitors?

It was in the photo gallery.

Craig

That look like the little room outside the 'The Cube' 

Lee

Dave Moulton:

The speakers that David Lewis got were the first B&O prototypes that combined the acoustic lenses with Adaptive Bass Control.  They were the Truly Ugly Monstrosities!  But they sure did the job!