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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: Re: CD compensation networks causing distortion? help! posted by stuck.wilson@gmail.com on May 8, 2007 at 17:26:21:
HiThe problem with horns and compression drivers is that they need the response to be corrected and they are nothing like a resistor as a load on the crossover.
You will notice there is a roll off at the high end, a flat mid area then a lower shelf and then a real sharp low roll off.
So, to keep parts count down and since this is not based on real numbers you might try the following.Connect a 8 ohm resistor across the compression driver, this will help make the load less frequency dependant. Try a series cap to the compression driver between 3 and 5 mfd, connected to your L-pad.
This will give you something around a 2khz knee with flat response above..
You can have a lower crossover point if you want to add more parts each time you unkink a response a step further..
For example, if you push the flat response to 1500Hz, you can do it with this.
Connect the 8 ohm across the C-driver.
Connect 10 mf in seres with the C-driver.
Make a parallel tank circuit out of a .5Mhy choke, 10Mfd and 8 Ohms.
Connect this is series with the 10Mf Cap.
Connect this to the L-pad.The tank circuit is needed to flatten the hump in the middle.
The BEST way to do this is to have accurate measurements of both amplitude, phase and impedance.
Anyway, hope this helps.
Best,Tom
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Follow Ups
- Re: CD compensation networks causing distortion? help! - tomservo 18:16:43 05/08/07 (1)
- holy! - stuck.wilson@gmail.com 18:50:59 05/08/07 (0)
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