reduce volume of Niobium micro dome super tweeter slightly?

[realflow100]

I'm wondering how I can reduce its volume by a dB or two. its just the smallest bit too harsh.
Can I just put a resistor in series with it or something? what value would I use?

 

[rayma]

I'm wondering how I can reduce its volume by a dB or two.

Try a 1R 5W resistor in series with the tweeter.

 

[realflow100]

is a 1 ohm resistor really going to drop it much? im not sure if I have a 1 ohm resistor around.

 

[rayma]

is a 1 ohm resistor really going to drop it much? im not sure if I have a 1 ohm resistor around.

It's a 4 ohm tweeter, yes? That's about -2dB.

 

[Galu]

Here is the calculation if you have an 8 ohm supertweeter:

If we put 2 ohm in series with an 8 ohm tweeter and assume a 10V drive voltage then the current will be V/R = 10/10 = 1A

The voltage across the tweeter will be I x R = 1 x 8 = 8V

Before adding the resistor, the voltage across the tweeter was 10V

So the ratio of new voltage to old voltage = 8/10 = 0.8V

This equals a reduction of 2dB

 

[realflow100]

ok its 4 ohms
I found some that measure like 1.6-something and they seem to work okay but its still pretty crisp O.O

 

[rayma]

ok its 4 ohms
I found some that measure like 1.6-something and they seem to work okay
but its still pretty crisp O.O

Then try two of your resisters in series for each tweeter.
Two dB would still be a fairly small amount of attenuation.

 

[realflow100]

only have two of them.

 

[rayma]

only have two of them.

What else ya got?

 

[Lojzek]

Perhaps the built in HP filter is not optimal. Ever tried to flip the polarity?

 

[PeteMcK]

L pad calculator - attenuation dB damping impedance decibel loudspeaker speaker voltage divider - sengpielaudio Sengpiel Berlin

 

[realflow100]

ok I used the resistors and it definitely helped! Wow! it sounds just about right now! good extra crispyness from the tweeters now without being overpowering

 

[Galu]

ok I used the resistors and it definitely helped!

Care to share your solution with us?

 

[realflow100]

I just used two 1.5 or 2 ohm resistors and since my volume level will never be super loud through these tweeters I only needed 0.5 watt type resistors but it'd probably be a good idea to change them to 2 or 3 watt ones sometime in the future

 

[Galu]

Thanks for satisfying my curiosity!

I'll leave you with an alternative suggestion for the future - a rheostat similar to this:

026TB32R100B1A1 CTS Electronic Components | Mouser United Kingdom