I need one for each of my 2 way moniters, with a flat sweep the bass is considerably lower volume so I have to have the bass turned up on my preamp which I don't like. The problem is I have no idea to how much I need to 'quieten' the tweeter to meet the woofers volume. Both drivers are a 8 ohm and are crossed at 3KHz.
Thanks
Boscoe
Thanks
Boscoe
Padding the tweeter won't have the same effect as the bass lift control on your pre-amp. The control on your pre-amp probably boosts around the 100Hz and under range, if you pad the tweeter you'll effectively boost 3kHz and under, it will effect a lot more than just the bass end! Why do you dislike using the tone control if it does what you want it to?
It's not vital but I like the speakers to have a flat response then change the the tone control. Don't know really just how I want them!!
Open up the speaker and tell us what's in the crossover.
Best approach will be to increase the resistor value in series with the tweeter.
Best approach will be to increase the resistor value in series with the tweeter.
I'd take aboard what has already been said, but for future reference, just google 'speaker attenuator calculator'.
L-Pad (Driver Attenuation Circuit) Designer / Calculator
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L-Pad (Driver Attenuation Circuit) Designer / Calculator
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OK, that 2.5 ohm/12 ohm resistor combination is giving about 3.5dB attenuation to the tweeter..
I suggest you reduce the 12 ohm resistor to 8 ohms and increase the 2.5 ohm resistor to 3.5 ohms. That will give about 5.5 dB attenuation (i.e. an extra 2 dB), without altering the 3kHz crossover point.
I suggest you reduce the 12 ohm resistor to 8 ohms and increase the 2.5 ohm resistor to 3.5 ohms. That will give about 5.5 dB attenuation (i.e. an extra 2 dB), without altering the 3kHz crossover point.
Just a few questions:
is it a commercial speaker or a diy one?
the 300-500 Hz region is also lower volume than the treble?
In my limited experience I would say that there isn't a correct BSC.
Ralf
is it a commercial speaker or a diy one?
the 300-500 Hz region is also lower volume than the treble?
In my limited experience I would say that there isn't a correct BSC.
Ralf
BSC = Baffle Step Conpensation
For an explanation of the baffle step effect see (for example): Baffle Diffraction Step
Here you can find a useful (an free) software that can simulate the effect: Baffle Diffraction Simulator
The compensation of the effect is done primarily with the main woofer inductor, for you that means you have to rework the entire crossover.
Ralf
For an explanation of the baffle step effect see (for example): Baffle Diffraction Step
Here you can find a useful (an free) software that can simulate the effect: Baffle Diffraction Simulator
The compensation of the effect is done primarily with the main woofer inductor, for you that means you have to rework the entire crossover.
Ralf
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