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December 24, 2013

When Should You Use Port Plugs?

Filed under: Audio Knowledge,How-To — Tags: , , — Andrew Welker @ 8:41 am

We have recently started shipping our newest product, the M100 Floorstanding Speaker, which is the first model of ours to come with port plugs. A port plug, as its name suggests, is simply something that will plug one of the loudspeaker ports, keeping air from moving in and out of the cabinet.

There are a number of reasons why you might want to use these, and they are going to be offered on the website as an accessory, so I’ll also cover where you might want to use these other than for the model M100.

When you place a loudspeaker in a room, if it has to be close to anything called a room boundary (back walls, side walls), you get something called boundary reinforcement happening. Boundary reinforcement will tend to accentuate the mid-bass frequencies. In a speaker like the M100 that has very good low frequency extension and output capabilities, you can easily end up with ‘too much of a good thing’ in those environments. And if you’re in a small listening room or environment, you can find that because everything is closer to the boundaries that you’ll also get that midbass accentuation, which can be too much of a good thing and can actually make things sound really slow and congested.

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