diyAudio

diyAudio (https://www.diyaudio.com/forums/index.php)
-   Full Range (https://www.diyaudio.com/forums/full-range/)
-   -   Tang Band W8-1772 Impressions. (https://www.diyaudio.com/forums/full-range/150267-tang-band-w8-1772-impressions.html)

TYM 1st August 2019 01:04 PM

1 Attachment(s)
Thank you for your answer, I appreciate your helps!
I will use your recommandation: a baffle step filter.
Here is the TQWT plan, I have built.
Musically
TYM

Eric 1st August 2019 02:50 PM

TYM - Thanks for the plans, that's the same one that I've been contemplating building for a little while. I'm certainly curious to hear your impressions after you tame the treble in your build.

TYM 1st August 2019 05:09 PM

You are welcome...
Alright, I will report the filter effect.
Do you have a schematic for building this BSC filter, “In parallèle, in serie” is not very clear for me... thank you

planet10 1st August 2019 06:02 PM

Quote:

Originally Posted by TYM (https://www.diyaudio.com/forums/full-range/150267-tang-band-w8-1772-impressions-post5869659.html#post5869659)
Thank you for your answer, I appreciate your helps!
I will use your recommandation: a baffle step filter.
Here is the TQWT plan, I have built.
Musically
TYM

What you have looks like an ML-TQWT (better to call it an ML-Voigt/ML-V). The mass loading dramatically better suppression of ripple ein the bass.

Are there any sims to go with the box?

dave

Eric 1st August 2019 06:09 PM

1 Attachment(s)
How's this?

Roughly speaking: The signal from your amp must pass through both the inductor and resistor at the SAME time (thus, the inductor and resistor are in parallel). The signal must pass through the inductor+resistor combination BEFORE it gets to the speaker (inductor+resistor combination is in series with the speaker).

TYM 1st August 2019 06:16 PM

Thank you Eric, it is clear now...

TYM 6th August 2019 01:19 PM

Good morning,
Finally, I built your baffle step corrector recommandation ( coil 3,9 mH- 1,4 mm/ resistor 10 Ohm-10w) and I have to say after several minutes of careful listening: it works very well. I am pretty glad and thank you very much for this great advice. The result is a global better balanced spectrum and no more acidity and fatiguing effect... :-) I don’t have the feeling of losing details or deepness.
I have, please, another question: shall I add a Zobel network in order to achieve the optimisation?
Warmest regards,
TYM

Eric 6th August 2019 02:21 PM

TYM - great to hear that you are happier with your speakers now! As you can see above, there are a number of combinations of coil and resistor values that people have used to solve this problem. Each will provide a slightly different result and I suspect that each works better for different room sizes/configurations and speaker placement. You might want to experiment a little with different coil sizes or resistors sizes and see which you like best.

I don't have any real insight on adding a Zobel, perhaps others can help here. I'm of the general opinion that the fewer things between your amp and driver, the better.

larryldspkr 6th August 2019 10:18 PM

TMY, I don't use a zobel no need really. You can experiment with one to see the results, that's what DIY is about. I found a zobel can roll off the highs and you don't want this with most full range drivers.

Larry

planet10 6th August 2019 10:32 PM

Quote:

...a zobel no need really...
A zobel affects the amplifier not the speaker.

dave


All times are GMT. The time now is 10:45 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 17.65%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio

Wiki