Does Plugging Bass Port Affect Pace, Rhythm and Timing?

That will do it, and depends how far away.

You could also try turning the speaker upside down. Many are measured on tweeter axis, so this will restore the vertical relationship.

Of course, it only matters if you can hear it.

Best,

E

Glad we could help, OP.

Best,

E

@prof - That’s actually an often repeated myth.

The overall efficiency is determined by the driver and crossover. The cabinet and port affects the bottom end of the driver’s response. Plugging the port does raise the -3 dB point up to about an octave or so.

I should point out that when I bought MA Silvers they came with factory foam plugs for the bass port, so this technique is quite normal.

@bdp24 - You are kind of right, in that an optimized sealed cabinet is usually quite smaller than an equally optimized ported cabinet, BUT that assumes they are going to be used the same way. If you are going to take a stand-mounted speaker, and then put it on a bookshelf, plugging the port is a very very good way to compensate for the additional bass reinforcement.


Best,

E

Hi Jetter, 

It actually works the other way. Below the port resonance, driver excursion increases dramatically faster than with a sealed cabinet. 

Below resonance, the tube acts as a simple vent, eliminating the air-spring (i.e. acoustic suspension) portion of the cabinet. By plugging the cabinet, the air-spring remains working at all frequencies, controlling excusrion but also, of course, reducing bass up to a point. 

At around -10 to -20 dB sealed and ported speakers have about the same output.

Best,

E

Hi Rwinner,

Not really. Actually my S1's came with plugs. Reducing the bass is a good idea when you have speakers not really designed for close boundary locations. It will help even out the bass response. 

You 

Best,

E