Attenuate tweeter level by 2 db

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bastek

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Joined 2005
I need to lower the highs by 1.5-2db without altering the crossover phase. I can use a 3R in series with the 13R, or a 25R in parallel with the tweeter. What's the best way to do it?
 

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Inductor

Inductor

Member
Joined 2006
bastek said:
Thanks for the link, but i can't use the L-pad formula. I can only add one resistor in series or in parallel. What's the correct value for 2 db attenuation? The tweeter impedance is 7 ohms.
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Why is that? What you are looking for, maybe is this.
http://www.troester.org/ls/lpad.html

But the model should be tested. You want to use your xover or similar (same results) with a different attenuation, if I'm right. If you need help just ask. What is your tweeter (besides the 7 thing)?
 
Inductor

Inductor

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Joined 2006
djarchow said:
The 25 Ohm in parallel with the tweeter gives you the most even attenuation across the passband and keeps the phase closer to the original schematic.

regards,

Dennis
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Dennis, that gives a good attenuation of ~2dB.

bastek, I wouldn't be amazed if you find kind of a peak at ~15k of 6dB with this tweeter/xover, unless you have a fullrange kind of driver or a first order midwoofer with low roll-off + good integration. (Cons. xover at ~2K5 for the NeoCD).
 
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