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Multi-Way Conventional loudspeakers with crossovers

Visaton W200S + TW70
Visaton W200S + TW70
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Old 25th September 2019, 03:55 PM   #51
Mrcloc is offline Mrcloc  South Africa
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I think I should just add that I don't think it matters at all. 15 W average power is something massive, probably in the region of 200 W peak power. According to this thread it looks like most people are happy with an average of only a few watts.
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Old 25th September 2019, 04:06 PM   #52
Lojzek is offline Lojzek  Croatia
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Quote:
Originally Posted by rrmitko View Post
Is it going to be noticeable if I do the change?

Thanks

It should be an obvious improvement for the better. Perhaps you can source magnet wire somewhere cheaply and build the inductors yourself. Would be a great exercise though.
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Old 25th September 2019, 08:41 PM   #53
rrmitko is offline rrmitko
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Quote:
Originally Posted by Mrcloc View Post
I'm going to take a crack at this.


With the 0.6 mm inductor:
Power going to the driver is down 1.6 dB. You won't hear this, but it means that a lot more power is dissipated by the inductor. For an average power of 15 W into the speaker, 4.8 W is dissipated in the inductor.


With the 1 mm inductor:
Power going to the driver is down 0.6 dB. The power dissipated in the inductor is a much smaller percentage of the power going to the speaker. For an average input of 15 W, only 1.9 W is dissipated in the inductor.


Furthermore, you will be able to drive more power into the speaker with the 1 mm inductor (I think by about 22 %).


As far as sensitivity is concerned, sensitivity is 2.2 dB less with the 0.6 mm inductor. Using the theoretical 88 dB for the driver at 1 W, at 2.83 V, the sensitivity is as follows:
0.6 mm: 87.6 dB
1 mm: 89.8 dB


You will need to adjust the tweeter accordingly, but again, with the 1 mm inductor, you will use a smaller value resistor on the tweeter and therefore dissipate less power in that.


I hope I'm accurate...
Quote:
Originally Posted by Mrcloc View Post
I think I should just add that I don't think it matters at all. 15 W average power is something massive, probably in the region of 200 W peak power. According to this thread it looks like most people are happy with an average of only a few watts.
Quote:
Originally Posted by Lojzek View Post
It should be an obvious improvement for the better. Perhaps you can source magnet wire somewhere cheaply and build the inductors yourself. Would be a great exercise though.
Thanks a lot for the info guys! To be honest I didn't expect much when I start building them,but they they turn out good at least the cabinets.And with some corrections they sound good as well.Probably I will change the inductors and see if I can hear the difference
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Old 30th September 2019, 12:59 PM   #54
rrmitko is offline rrmitko
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Quote:
Originally Posted by Lojzek View Post
edit: How is the final circuit now?
Sorry I did't saw your question earlier. I was using the optimisation in Boxsim.
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File Type: png Boxsim2.png (110.2 KB, 139 views)
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Old 30th September 2019, 02:55 PM   #55
Lojzek is offline Lojzek  Croatia
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No problem, thank you. Looks reasonable.
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Old 21st November 2019, 06:27 PM   #56
acamilicko is offline acamilicko  Serbia
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Mine version of this combo, a bit different approach, woofer is 4 ohm

Visaton W200S + TW70-skretnica_final-jpg-9398234c1a21019c5022c54d56cbcd31-jpg

60 liters cab, detachable front (in case I change my mind and build something else )

Visaton W200S + TW70-psx_20191104_010757-jpg-82e85a5ae67931c77183105b37a9287d-jpg

Visaton W200S + TW70-psx_20191104_010639-jpg-26153a6ab973f44b36040c6daba2fab8-jpg

More info here: Visaton W by VladaC (aka WLM La Scala) aka Alex edition, a posle i možda nešto drugo - Project gallery/WIKI - diyAudio.rs

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Old 22nd November 2019, 12:30 AM   #57
system7 is offline system7  United Kingdom
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Great work, acamilicko!

When I first saw the WLM La Scala, I just wondered how those guys were charging 3,000 Euros for something with a ten buck tweeter!

Click the image to open in full size.

Actually, they reminded me of my first serious Ł35 speakers back in 1972, the Wharfedale Linton II's:

Click the image to open in full size.

I have tried the Visaton TW70 and the similar Monacor HT-22 tweeters. TBH, I prefer the Monacor:

Click the image to open in full size.

Click the image to open in full size.

I haven't taken the Monacor apart, but I suspect it doesn't have a spider, The Visaton tweeter does. I only know this because I put a screwdriver through the Visaton tweeter cone one day, by accident!
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Last edited by system7; 22nd November 2019 at 12:32 AM.
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