Beyma 8AG/N horn or "the Viech"

[bubuxxl]

Originally Posted by juluska

in a small electronics shop here in Tarragona, Spain. The drivers are made in Valencia.

have you finished your viech´s?I´m finding them quite hard to tune the bass and stopping mid/high frequencies from comming through the horn mouth...
what materials are you using to stop this?

[hifisucks]

Originally Posted by bubuxxl

have you finished your viech´s?I´m finding them quite hard to tune the bass and stopping mid/high frequencies from comming through the horn mouth...
what materials are you using to stop this?

Hi, are you still having problems?... I solved mine putting a role of dynavox damping wool just underneath the chassis and stuffing some wool in the room behind the chassis... worked great. I now have a great speaker
PS: Dont forget to cut out the dust cap... and put a self made phase plug in...


http://www.funpic.de/foto/465635#

[pukka]

hifisucks, Do you have closer photos?

What did you use for the phase plug in?

Does anyone knows if theres a version of that document in english?

[hifisucks]

Here is a Link to my Viechs I sold last week...I have no more photos... but what precisly do you want to know?
The material of the phase plugs is aspen wood. I just took a piece of a branch and carved so long till I had the right shape and size. At planet 10 hifi you can see some original plugs...Cyburgs-Viech bei eBay.de: (endet 10.03.11 16:50:59 MEZ)
I know no translation of the site about the Viech... But please ask some questions...!!!

[bubuxxl]

sorry about taking so long to reply...I still haven´t managed to solve the bass problem,it really is very bass shy!
I have the foam thing just behind the speaker and some wool fill just under the driver,but still,no significant improvements...
But i´m about to try the dust cap removal mod!Does it do wonders?What improvements in sound did you took notice of?
thank you for your kindness!

[bubuxxl]

Originally Posted by hifisucks

Hi, are you still having problems?... I solved mine putting a role of dynavox damping wool just underneath the chassis and stuffing some wool in the room behind the chassis... worked great. I now have a great speaker
PS: Dont forget to cut out the dust cap... and put a self made phase plug in...


Viech

i´m a bit affraid to cut the dust cap...does the mod work?
does some of the midband coloration disappear with the mod?

[hifisucks]

Originally Posted by bubuxxl

sorry about taking so long to reply...I still haven´t managed to solve the bass problem,it really is very bass shy!
I have the foam thing just behind the speaker and some wool fill just under the driver,but still,no significant improvements...
But i´m about to try the dust cap removal mod!Does it do wonders?What improvements in sound did you took notice of?
thank you for your kindness!

Hi, no problem... what kind of "foam thing" do you have behind the driver? It still must be fluffy! Not stuffed!

Do you have some detail fotos?

Maybe there is a gab somewhere in the box construction?

Where do the boxes stand?

Do you have a nice thin scalpel for cutting? There is really no problem cutting! Just dont cut off too much at one time...you will then see where to stop...
Beyma1

[hifisucks]

Originally Posted by bubuxxl

i´m a bit affraid to cut the dust cap...does the mod work?
does some of the midband coloration disappear with the mod?

Hi, the mids are just a little tamed...

But you must try to make a plug!!! The highs are more delightfull!!!

Bass shy? Try taking some stuffing out from underneath the driver or move your speakers...

[bubuxxl]

Originally Posted by hifisucks

Hi, no problem... what kind of "foam thing" do you have behind the driver? It still must be fluffy! Not stuffed!

Do you have some detail fotos?

Maybe there is a gab somewhere in the box construction?

Where do the boxes stand?

Do you have a nice thin scalpel for cutting? There is really no problem cutting! Just dont cut off too much at one time...you will then see where to stop...
Beyma1

I never really took the time to take photos of the construction process,I just cared about listening to it!the foam looks just like the same that cyburg used and that you can see in the original thread pictures.it´s egg crate shaped foam.
the box is completeley sealed,there are no gaps at all...

about the amount of bass,I tried several times to remove damping material from below the driver,but this only results in more mids comming from the horn mouth and in even more coloration...It always sounds a bit too dry for my taste!

And I´ll be choppin´ off that dust cap,today!I really hope to tame the mids a little!
thank you for the replies and for the detailed photo!

[bubuxxl]

Originally Posted by hifisucks

Hi, the mids are just a little tamed...

But you must try to make a plug!!! The highs are more delightfull!!!

Bass shy? Try taking some stuffing out from underneath the driver or move your speakers...

oh,one more thing...the boxes don´t have spikes or anything,they´re coupled directly to the floor.does this have too much influence on sound?