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weighting speakers and resistance loading????

I have heard these terms while I was looking at reviews for my speakers, and am unsure as to why/how it would be accomplished. I have Mission M73 floor standing speakers

I have heard that weighting down the speakers helps the sound... How is this possible? My speakers have the speakers on the top of the cabinet that is ported out the back. Below that in a seperate chamber is a n opening that has a plastic cover on. At first I thought this was for the upgraded model and an extra port, but now I am thinking it is for adding weight. Do I just pour sand in there? how much do I add, and how does this help?

Also resistance loading, I think I know what this means, but how is it done, and what does it improve?

Thanks for any help.
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Showing 1 response by marakanetz

marakanetz's avatar
marakanetz
5,473 posts
 
Don't ever put send into the port. Speakers usually have a designated loading hole separated with the plane bellow the port. If such doesn't exist than don't bother.

A resistance loading needed when speaker represents a tough load. Usually you connect to the speaker wires a resistor in-series to match the amp's minimal load resistance.
The effect is you'll tame bass freequencies where your amp hasn't enough power to deliver.

If your amp clips at high freequencies than you need to decrease the resistance and you add in-parallel load resistor to the speaker binding posts so your speaker will have lower impedance. There you should make sure that your amplifier is able to deliver enough current to already decreased load otherwise you might face a blown woofer which is substantially more costly than tweeter.
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