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-   -   Seas Bifrost (https://www.diyaudio.com/forums/multi-way/115301-seas-bifrost.html)

nicoch58 8th March 2008 02:57 PM

sr71 are good speaker ,the CNO are top speaker, all dipends level quality of cd-amp...

If you love music CNO have good price for 15year....

not last the possibility to upgrade http://www.troelsgravesen.dk/AcapellaNEXT.htm

very definitive ,with mid in OB!!!!

peter_m 8th March 2008 03:47 PM

Just wanted to add that the CNO version has a higher x-over frequency. It helps the tweeter with it's distortion levels at lower frequencies... on the other hand, the increased x-over frequency approaches the woofer's break-up frequency... it's a tough trade.

A listening test between the CNO and the original Bifrost as the drivers are the same and the x-over parts are relatively inexpensive except for the largest inductor which can be expensive depending on what type you choose.

PS: In my previous post I might have been too harsh on the Bifrost's woofer, I really meant to say it was a little better but in my opinion not enough to justify the price.

nicoch58 8th March 2008 05:25 PM

hi peter , yes this driver are very good....
I'm on scanspeak side from 20year ,I have ellam, the troels xover sound fantastic !!!!(2300hz)

peter_m 8th March 2008 05:48 PM

Hi nicoch46,
strange that on Troel's site he has this graph showing a much higher X-over point then 2300hz: http://www.troelsgravesen.dk/CNO_files/RC-circuit.GIF

Further in his page he shows this graph:http://www.troelsgravesen.dk/CNO_fil..._W18height.jpg

His words:"Point of crossover is 2800 Hz."

What am I missing?

nicoch58 8th March 2008 05:54 PM

eheh,sorry 2300hz are for my speaker Ellam ,Cno are 2800hz!!

not too much difference but I have 5,25" driver, CNO are 6,5"but don't worry troels know what do!

peter_m 8th March 2008 05:57 PM

Quote:

Originally posted by nicoch46
...don't worry troels know what do!
I never said he didn't. Just pointing out differences between the Bifrost and CNO. Didn't know we were talking about the Ellam...

Cheers,

nicoch58 8th March 2008 06:06 PM

well , the xover are quite difference serial vs parallel .
the second coil in series an seas design kill the woofer transient ,this from my personal experience on my scan 15w when change my xover with troels design...

peter_m 8th March 2008 06:18 PM

Dude, try this before posting: http://www.google.com/translate_t?langpair=it|en

SpikyTim 8th March 2008 09:32 PM

Some more pictures.
An externally hosted image should be here but it no longer works. Please upload images instead of linking to them to prevent this.

An externally hosted image should be here but it no longer works. Please upload images instead of linking to them to prevent this.

An externally hosted image should be here but it no longer works. Please upload images instead of linking to them to prevent this.


Furthermore some comments on the cost. At a certain level the relation between price and performance is not justified anymore. And the discussions are just a matter of taste. I also bought these units for the looks. And I'm a happy man with this system.
Everybody has to make out for themselfes if they want to spend the money for these units.

greetz,

Tim

nicoch58 8th March 2008 09:50 PM

HI Tim nice girls :)

DIY value are 10x rispect commercial product ;)


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