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Old 18th January 2013, 03:02 PM   #6081
ds23man is offline ds23man  Netherlands
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To put things in perspective:

You can lower the gain of the ncore with 13db and in combination with a 113db compression driver you still have a 100db sensitivity. Combined with direct radiating drivers there is still a big mismatch......
 
Old 18th January 2013, 03:20 PM   #6082
akasha is offline akasha  Denmark
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Originally Posted by ds23man View Post
To put things in perspective:

You can lower the gain of the ncore with 13db and in combination with a 113db compression driver you still have a 100db sensitivity. Combined with direct radiating drivers there is still a big mismatch......
you take parts out of the whole equation

lower the gain of the ncore will not change the sensitivity of the compression driver
 
Old 18th January 2013, 03:43 PM   #6083
ds23man is offline ds23man  Netherlands
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Originally Posted by akasha View Post
you take parts out of the whole equation

lower the gain of the ncore will not change the sensitivity of the compression driver
Depends from which side you are looking. From the active crossover side you still need to att. the compression driver.
 
Old 18th January 2013, 03:59 PM   #6084
akasha is offline akasha  Denmark
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Depends from which side you are looking. From the active crossover side you still need to att. the compression driver.
true, but in case with too much gain as well as noise, is better to attenuate noise as well as signal before the ncore instead of reducing gain of the ncore, whatever comes from ncore will still be used with 113db sensitivity
 
Old 18th January 2013, 04:28 PM   #6085
ds23man is offline ds23man  Netherlands
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Or put a 16R resistor in series with your 16R driver, the ncore will be limited to 50 watt and the resistor will soak half of it so you will have a nice an healthy 25 watt at the driver.... Should be sufficient for home applications.
 
Old 18th January 2013, 04:35 PM   #6086
akasha is offline akasha  Denmark
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Originally Posted by ds23man View Post
Or put a 16R resistor in series with your 16R driver, the ncore will be limited to 50 watt and the resistor will soak half of it so you will have a nice an healthy 25 watt at the driver.... Should be sufficient for home applications.

and some might not even notice before a proper ABX test
 
Old 18th January 2013, 05:01 PM   #6087
ds23man is offline ds23man  Netherlands
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And it is wise to put a capacitor in series with the driver as a safety device, remember the ncore is dc coupled! It would be very if a high DC voltage is applied to a nice TAD 4001 750 dollar diaphragm......

I am building a system with B&G RD-50's and I will put in a series C, if something goes wrong it would be a nice 50" Led Line for a short period......

Last edited by ds23man; 18th January 2013 at 05:07 PM.
 
Old 18th January 2013, 05:07 PM   #6088
ds23man is offline ds23man  Netherlands
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and some might not even notice before a proper ABX test
And they will not hear anything again after an ABX test with 25 watts on a 113db driver......
 
Old 18th January 2013, 05:19 PM   #6089
akasha is offline akasha  Denmark
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Originally Posted by ds23man View Post
And it is wise to put a capacitor in series with the driver as a safety device, remember the ncore is dc coupled! It would be very if a high DC voltage is applied to a nice TAD 4001 750 dollar diaphragm......

I am building a system with B&G RD-50's and I will put in a series C, if something goes wrong it would be a nice 50" Led Line for a short period......
may I reccomend:
Duelund Chorent audio have some nice ones called "Cast" series silver: only 1200-EUR for 10uF (1 pc.) you can barely hear them
 
Old 18th January 2013, 05:52 PM   #6090
Julf is offline Julf  Europe
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Quote:
Originally Posted by ds23man View Post
Or put a 16R resistor in series with your 16R driver, the ncore will be limited to 50 watt and the resistor will soak half of it so you will have a nice an healthy 25 watt at the driver.... Should be sufficient for home applications.
Especially on cold nights like this...
 

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