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In Reply to: RE: Mixing Speaker Impedances posted by Cpwill on November 27, 2016 at 13:44:04
You can do just what you said, but you have to pay attention to differing driver sensitivities with equal voltage input. Resistive padding of a tweeter is easy, of a woofer isn't.
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Thanks, Bill. Can you elaborate any? The drivers at hand are 98db sensitivity for both the woofer and wide-range and 108 for the super tweeter. Thanks in advance.
Don't go by the 1m/1w sensitivity, you have to go by 1m/2.83v, as all the drivers will receive the same voltage. 98dB/1w is 2.83v into 8 ohms, but it's 4v into 16 ohms. So if they're both rated 98dB/1w then the 16 ohm driver will have 3dB lower sensitivity with equal voltage input. Padding down a tweeter with a resistor LPad is no biggy, but with a full range or woofer the resistor power requirements could be substantial. OTOH if the woofer has higher voltage sensitivity that would help offset the need for baffle step compensation.
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