New open baffle pictures

[Nuuk]

Well chaps, it's Sunday so how about some pictures?

I have finally got rid of my rather utilitarian baffles and replaced them with something a bit more at home in a living room.





There are more pictures and a description HERE on Decibel Dungeon.

[Ian J]

Nuuk,
What (super)tweeter do you have there?
How is the 'great dipole woofer' search going?
Ian

[Nuuk]

Hi Ian,

It's just a cheapish silk dome which comes in at around 14K. I am going to try a second pair firing backwards.

The best option for the woofers still appears to be the Alpine SWE 1250 which is around 53UKP. I am still looking......

[dezzz]

Have you considered the Neo3 ribbontweeter, would make a perfect openbaffle match... It would be a shame though to cut it off that high...

[Ian J]

Nuuk,
Came across John Kreskovsky's new design the other day. This U-frame idea looks interesting in that only one driver would be necessary, though I don't know if the requirements on driver Q would be relaxed (and of course the driver he uses isn't easily available in the UK...).
If I read correctly he says the cardiod should sound similar to a dipole as they're both 'velocity source' rather than 'pressure source' systems. Must think about this...
Ian

[Nuuk]

Have you considered the Neo3 ribbontweeter

Not that particular ribbon but others. The thing is, as the tweeter comes in quite high, it seems a bit extravagant to spend a lot on one at present.

The priority is to extend the bottom end.

[Nuuk]

Came across John Kreskovsky's new design the other day.

Hi Ian, while your post was coming through, I started another thread on that topic! So I won't respond here or we will get things split between the two threads!

[Svante]

Nice woodwork! I just wonder; how did you go about when you decided the shape of the baffle?

[Nuuk]

Nice woodwork! I just wonder; how did you go about when you decided the shape of the baffle?

Well it was a case of 'necessity being the mother of invention' really.

I wanted the solid part of the baffle as narrow as possible so the width was set at the diameter of the main driver plus the depth of the slots for the glass. Luckily, this coincided with the width of two of the flooring panels used to make the front of the panels.

The height (and top curve) was based on drawing an arc from the centre of the main driver, where the radius was the distance from the centre of the driver to the closest edge of the baffle.

This resulted in the height of the baffles being some 120mm less than that of my prototype baffes and as I have found there to be a slight reduction in bass, I think that I should have made them a bit taller but that's DIY hi-fi! As I am adding woofers anyway, it is not the end of the world

The dimensions of the 'glass wings' were chosen to produce a slightly wider baffle than the prototypes and I just chose to put a quarter round on each corner.

[Mentero]

Hi Nuuk,

Beautifull looking speakers. Congrats.

Regards
Miguel