[Vintage-Audio] Front Vs Rear Ports

[Duane Fischer, W8DBF]

Hi All,

Is there any advantage in using a rear ported speaker cabinet versus a front 
ported one?

The bass reflex system uses a tuned front port to phase the sound from the 
rear of the speaker cones with the sound from the front of the speaker 
cones. This provides about a 25% boost in audio, especially the lower 
frequencies.

The rear ported cabinets bounce the sound from the rear of the speaker cones 
off what, a wall? How does this keep the front and rear sound waves in 
phase?


Duane Fischer, W8DBF - WPE8CXO
E-Mail: dfischer at usol.com
Hallicrafters web site: www.w9wze.net
HHRP web site: hhrp.w9wze.net