Sonido 250 Open Baffle

[DUC985]

so, i am waiting on my drivers as we speak. The idea is to start a journey with my first open baffle.

The fullrange will be the below model from Sonido. Tricky question starts now with the woofer and the XO.

Cuurent idea is a Faital 15PR-400 most probably on a U-Baffle to save some space ...

Hopefully over xmas i will find some time for a prototype ...

 

[Zen Mod]

keep us informed

 

[adason]

i would suggest biamp with active crossover, but you may be in a hurry to listen with passive
there is lots of good info about crossovers for basszilla on dick olsher site
Tip_81

 

[DUC985]

I am considering Nelsons active crossover, but you are right i will probably start passive ...

 

[Lukyk]

I'm very curious about your impression with Sonido fieldcoil drivers. Do you have any other FR's to compare to?

I also want to do some WAW and Sonido drivers are on top of my list. Although I didn't considered Open Baffle so far.

My strategy for X-over is to try / measure best point with decent DSP (which will than take role in hometheater scenario) and than mimic optimal values with Nelson's active crossover from store.

 

[adason]

Yes, Nelson has plenty of active crossovers to copy...
I puchased his board for lxmini, but adopted it for his open baffle circuit, that was very convenient

 

[djn]

I have the same drivers and power supply in the mail from Istvan. I'm using 4 powered subwoofers to handle the low end.

 

[DUC985]

So this is probably what i will start with. Just noticed that the Visaton BGS40 is a suitable woofer. I have two in the house from another project and therefore will probably start of with the Visaton NoBox based design ...

The VISATON NoBox BB Loudspeaker Kit Review By Dick Olsher

 

[bobikdartanan]

There is a project based on Goldwood GW-1858 Woofer on H-Frame Open Baffle
Goldwood GW-1858 - 18" Open Baffle Woofer

 

[djn]

I built those H frames. They sound good but I had to bump the low end to get strong below 30hz.

 

[djn]

opps, I built the H frames wit the Goldwood 15" not the 18".

 

[Mattes]

Hi Duc,


before I bought my AE Dipole 18, I had lots of fun with an AD R 1830 in a moderate sized OB. Depending on baffle size for the Sonido, I would be careful with an H-frame for the woofer when going passive, as you most likely will find that a crossover frequency between 250 and 350 Hz works well, and then you´re in the resonance region of any folded baffle, not good.

The R 1830 worked quite well with both a TB 1808 and a EMS LB8; should be fine with the Sonido as well. I even have a pair, should you be interested, just send me a PM.


All the best and lots of fun with the Sonido


Mattes

 

[brianco]

Sondino appear to have been missed by Google of late....(which incidentally is becoming about the worst search engine imaginable ... unless you require a pair of computer speakers or an MP3 set-up. When I last managed to get to their site virtually everything was out of stock.

Any helpful suggestions?

 

[djn]

I just went to the site. It is in tact.

 

[James Olson]

Thank you very much for the information. Keep us informed, thanks.

 

[djn]

Have you been breaking in your 250s? How do they sound?

 

[DUC985]

Nope, got the woofers this week from Mattes and now busy with some basic wood work ... hopefully within the next weeks ...

The drivers look well made, there are are a few minor cosmetical issues with the casting at the back of the basket but for this amount no big deal. Will post some images

 

[djn]

I have a pair of them too. The castings look good to me. Mine have been playing on OBs while I plan and build the cabinets. The definently need break in time for the low end.

 

[brianco]

Thanks DJN,

I can find the products on another site - a multi-agency shop, but STILL cannot find the Sonido makers website.

The shop - also in Cz appears to be out of all Sonido drivers in which I am interested.

I shall be very grateful if you can send me the correct address for the factory site.

Many thanks

 

[DUC985]

Sonidu.hu