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Multi-Way Conventional loudspeakers with crossovers

DTQWTII from Argentina
DTQWTII from Argentina
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Old 21st July 2017, 12:34 PM   #221
DIYBras is offline DIYBras  Brazil
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Thank you for the link!

In fact I listened to the huge old panel (see attachment).
Impressive! Lees coloration than you expect for such old system, but low freq extension not achive "subwoofer response". The low freq. response remembers the TQWT, but with a litle better bass extension and better "body experience" (huge woofers make this, like you said...) Really a enlightening experience!

Is funny that in Brazil almost all HiFi/HiEnd people hates/disdain Selenium; is like a PA or poor man choice (sometimes these people are right, but depends on model). Although the Snake brand makes better "specs" speakers.

A friend of mine, Mauricio, assembled in 1990's a very huge horn made in concrete! 7m long and a large window-sized mouth, for a true 20Hz response. Uses 2 12" Selenium drivers, and Backstage magazine made a "rewiew" of it, with Selenium people. But I need to find the photos... is in my house (I'm in work just now) {see my avatar}
The bass sound makes even the MBL/Avantgarde (put your favorite brand name here) system or all PA systems I've listened to appears distorted and muddy!
My dream thing to built when I have space in future...
Attached Images
File Type: jpg 20170519_161506.jpg (180.2 KB, 218 views)
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Last edited by DIYBras; 21st July 2017 at 12:37 PM.
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Old 24th July 2017, 09:35 PM   #222
academia50 is offline academia50  Argentina
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Originally Posted by DIYBras View Post


A friend of mine, Mauricio, assembled in 1990's a very huge horn made in concrete! 7m long and a large window-sized mouth, for a true 20Hz response. Uses 2 12" Selenium drivers, and Backstage magazine made a "rewiew" of it, with Selenium people. But I need to find the photos...
If you find them it would be good to see them! Someone did the same around here! If someone wants to tackle the construction, it is good to know that a margin of error of 30 cm ( a foot ) will not audibly alter the final result !


Hopefully you can fulfill your dream!
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Last edited by academia50; 24th July 2017 at 09:40 PM.
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Old 26th September 2017, 02:18 AM   #223
Toberius is offline Toberius  Argentina
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Truely nice work and there are good skill woodworking Tano.

Congrats.
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Old 27th September 2017, 02:14 AM   #224
academia50 is offline academia50  Argentina
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Truely nice work and there are good skill woodworking Tano.

Congrats.


Thank you, I'm glad you liked my work.
Regards
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Old 27th September 2017, 04:03 AM   #225
academia50 is offline academia50  Argentina
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Someone did the same around here! If someone wants to tackle the construction



La Bocina subterranea. Parte I | Construyendo nuestra casa con la tecnica del GREB
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Old 27th September 2017, 04:15 PM   #226
DIYBras is offline DIYBras  Brazil
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WOW!!

PS.: oops... I forget to search the promised photos
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Old 28th September 2017, 09:38 PM   #227
academia50 is offline academia50  Argentina
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PS.: oops... I forget to search the promised photos
Do not worry about that, we always have a lot to do and a little time ....
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