Good evening to all! I join diyaudio to learn how to rebuild existing loudspeakers and share my knowledge about building loudspeakers from scratch. Currently rebuilding Infinity Kappa 9 loudspeakers and will require advice from members. So far I have built open baffle, h-frame and closed loudspeakers. I have also modified a 3-way loudspeaker to active crossover with satisfying results. My mother tongue is french and I may express myself in odd ways. Thanks for letting me in!
I am a loudspeaker and electronics hobbyist since I was 14 years old. I joined diyAudio nearly 20 (!) years ago when trying to repair old rotten woofer surrounds.
I learned a lot by following this forum!
Currently I try to understand how to design "ideal" bass reflex ports.
I learned a lot by following this forum!
Currently I try to understand how to design "ideal" bass reflex ports.
stv, I hope you find your answers on this site for the ideal bass reflex port. Bass reflex loudspeakers are on my list of things to learn. To you, what is the ideal compared to:
Fb=v/(2∗π∗√(Vb∗ρ/A))Fb=v/(2∗π∗√(Vb∗ρ/A))
Variables:
I copied this from https://calculator.academy/bass-reflex-calculator/
hpbuilder
Fb=v/(2∗π∗√(Vb∗ρ/A))Fb=v/(2∗π∗√(Vb∗ρ/A))
Variables:
- Fb is the tuning frequency of the bass reflex speaker
- v is the speed of sound in air (approximately 343 m/s)
- π is a mathematical constant whose value is approximately 3.14159
- Vb is the volume of the speaker box
- ρ is the density of air (approximately 1.2 kg/m³)
- A is the cross-sectional area of the port
I copied this from https://calculator.academy/bass-reflex-calculator/
hpbuilder
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Have a look at the linked thread - it's not so much about the vent calculation formula but rather about how the vent should be designed to avoid resonances and chuffing noises, compression etc.
