Hello everybody. greeting from BULGARIA
I found this forum very helpfull, although allmost all the components (excluding Pioneer, Sony, Alpine, Panasonic) you are using for building yours sound system are "very hard to find" here.
I've just finished building a sub box (23 litres, "looking stealthy" closed box - it's small, but I need the trunk for other purposes also) for my car trunk and saw one install that have a pressure plate infront of the speaker and was wondering the meaning and if someone could explain the benefits and howto for that....
I've heard that it brings also some benefits to sound pressure.
Normal closed box works as closed rear chamber of the bandpass box. "Pressure plate" is about 40-60mm away from the box and the space between box & plate works as tuned chamber of the bandpass box.
here is the link:
http://www.kalliojarvi.net/autos&sec.htm
Doesn't anybody know facts?
I found this forum very helpfull, although allmost all the components (excluding Pioneer, Sony, Alpine, Panasonic) you are using for building yours sound system are "very hard to find" here.
I've just finished building a sub box (23 litres, "looking stealthy" closed box - it's small, but I need the trunk for other purposes also) for my car trunk and saw one install that have a pressure plate infront of the speaker and was wondering the meaning and if someone could explain the benefits and howto for that....
I've heard that it brings also some benefits to sound pressure.
Normal closed box works as closed rear chamber of the bandpass box. "Pressure plate" is about 40-60mm away from the box and the space between box & plate works as tuned chamber of the bandpass box.
here is the link:
http://www.kalliojarvi.net/autos&sec.htm
Doesn't anybody know facts?