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Multi-Way Conventional loudspeakers with crossovers

original crossover schematics for clone ATC SCM 100
original crossover schematics for clone ATC SCM 100
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Old 12th December 2013, 07:12 PM   #151
TwangBar is offline TwangBar  Canada
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Cool - Are you willing to post your crossover??

Quote:
Originally Posted by Audio Elite View Post
I have my own passive versions with the crossover to the mid at 700hz and the tweet at 3.5k and I can tell you they sound better that the Active's I have done side by side comparison with 2 other friends and the vote was unanimous. The midrange is the best I have ever heard form any speaker. I use the Scan BE tweeter up top and the highs are sublime. The speakers also sound great with just 80 watts of valve power and just get better as you climb the amplifier chain.
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Old 4th January 2016, 05:16 PM   #152
darkmatter is offline darkmatter  United Kingdom
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Quote:
Originally Posted by Audio Elite View Post
I have my own passive versions with the crossover to the mid at 700hz and the tweet at 3.5k and I can tell you they sound better that the Active's I have done side by side comparison with 2 other friends and the vote was unanimous. The midrange is the best I have ever heard form any speaker. I use the Scan BE tweeter up top and the highs are sublime. The speakers also sound great with just 80 watts of valve power and just get better as you climb the amplifier chain.
Hello

Are you prepared to share the crossover?

Thanks

Simon
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Old 13th January 2016, 09:35 PM   #153
vintageaxeman is offline vintageaxeman  United Kingdom
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Anyone interested in this thread might also be interested in my two ATC boards on Pinterest.....

First, a board that holds my collection of research on ATC speakers (and a few other bits and bobs):
https://uk.pinterest.com/TheTrike/at...m150aslt-conv/

Second: my build project:
https://uk.pinterest.com/TheTrike/at...ecording-stud/
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Old 10th November 2017, 05:45 PM   #154
hugo stiglitz is offline hugo stiglitz  Germany
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I am continiously reading that ATC SCM100 lacks deep bass..
I am considering a Wilmslow Audio K100 kit but what about the bass issue?
I dont would want to need additional subwoofers if I build speakers that size
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Old 10th November 2017, 09:06 PM   #155
howarthcd is offline howarthcd  United Kingdom
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Quote:
Originally Posted by hugo stiglitz View Post
I am continiously reading that ATC SCM100 lacks deep bass..
I am considering a Wilmslow Audio K100 kit but what about the bass issue?
I dont would want to need additional subwoofers if I build speakers that size
Hi Hugo

I built the Wilmslow Audio K50 kit earlier in the year (based on the SCM50) and the bass is plentiful. I really don't see what a subwoofer would add - the bass extension is superb.

My kit was purchased before they switched to using a Volt mid-range driver. It would be worth contacting them to see if the crossover has been revised as the Volt and ATC mid-ranges have different recommended crossover frequencies.

Thanks
Chris
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Old 12th November 2017, 12:44 AM   #156
hugo stiglitz is offline hugo stiglitz  Germany
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Quote:
Originally Posted by howarthcd View Post
Hi Hugo

I built the Wilmslow Audio K50 kit earlier in the year (based on the SCM50) and the bass is plentiful. I really don't see what a subwoofer would add - the bass extension is superb.

My kit was purchased before they switched to using a Volt mid-range driver. It would be worth contacting them to see if the crossover has been revised as the Volt and ATC mid-ranges have different recommended crossover frequencies.
Hi Chris,

thanks, I already got hold of a pair of those ATC mid drivers second hand and ATC 12" bass driver.. so I should come close
gonna listen to some SCM100ASL in out local hi-fi shop next week.
from there I'll take my decision if I give it a go or sell the chassis and keep looking .. thank you
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Old 18th November 2017, 09:27 AM   #157
hugo stiglitz is offline hugo stiglitz  Germany
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Quote:
Originally Posted by howarthcd View Post
I built the Wilmslow Audio K50 kit earlier in the year (based on the SCM50)
have you ever had the chance to compare to real ATCs SCM50?
does the Wilmslow Kit come close?
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Old 18th November 2017, 12:29 PM   #158
frede4500 is offline frede4500
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Quote:
Originally Posted by ocstony View Post
Hi, Frede4500,

where you got your crossover?
brand new from Wilmslow UK?
would you mind to post a closeup pictures for your crossover? thanks!
no i got all drivers and filters from atc ,filters are upgraded with Jantzen silver z caps and superes resistors ,with that upgrade it sounds better than the active versions
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Old 18th November 2017, 05:43 PM   #159
hugo stiglitz is offline hugo stiglitz  Germany
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Quote:
Originally Posted by frede4500 View Post
no i got all drivers and filters from atc ,filters are upgraded with Jantzen silver z caps and superes resistors ,with that upgrade it sounds better than the active versions
You're lucky.. they don't do that anymore nowadays.
Would you mind to share pictures? Maybe you even have schematics of this?
Highly appriciated
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Old 18th November 2017, 07:00 PM   #160
howarthcd is offline howarthcd  United Kingdom
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Quote:
Originally Posted by hugo stiglitz View Post
have you ever had the chance to compare to real ATCs SCM50?
does the Wilmslow Kit come close?
No I haven't been able to compare. I'd be surprised if they sound significantly different given that the K kits were designed with input from ATC.

The mid driver and tweeters are both closed-back units so I would think the cabinet has minimal influence on the performance of those. The positioning and alignment of all drivers looks to be similar to the SCM50.

It would be interesting to compare the crossover schematic with that of the genuine article.
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