My DIY Active 3-Way Floorstander!
- Thread starter bijinmb
- Start date
jk_chaos
Active Member
Wow! that just looks amazing.. Awesome :clapping::clapping::clapping:
Going by the photographs, the fit and finish look fabulous and it sounds unbelievable that these are DIY effort.
How was the length of the tubes (which affects the volume) determined? Has the TSPs of the drivers determine that or something else?
Are these speaker/xover parameters? Looks like amp's parameters to me.
How was the length of the tubes (which affects the volume) determined? Has the TSPs of the drivers determine that or something else?
Are these speaker/xover parameters? Looks like amp's parameters to me.
@captrajesh
A gain of factor 1 (equivalent to 0 dB) where both input and output are at the same voltage level and impedance is known as unity gain.
Frequency response: Within 1dB from 10Hz to 20kHz.
This is actually a amplitude (SPL/db) Vs Frequency (Hz) graph which shows the responce of the xover when we give a swing of 10Hz to 20kHz at 1db amplitude.
Filter attenuation slope: 24dB/octave
This an important factor in xover design.
This is the steepness or severity of a filter's attenuation. As an example, a filter slope of 6dB per octave would be more subtle or less severe than a filter slope of 12 or 24dB per octave.
These all are big topics which is beyond the scope of this thread!
A gain of factor 1 (equivalent to 0 dB) where both input and output are at the same voltage level and impedance is known as unity gain.
Frequency response: Within 1dB from 10Hz to 20kHz.
This is actually a amplitude (SPL/db) Vs Frequency (Hz) graph which shows the responce of the xover when we give a swing of 10Hz to 20kHz at 1db amplitude.
Filter attenuation slope: 24dB/octave
This an important factor in xover design.
This is the steepness or severity of a filter's attenuation. As an example, a filter slope of 6dB per octave would be more subtle or less severe than a filter slope of 12 or 24dB per octave.
These all are big topics which is beyond the scope of this thread!
ranjeetrain
New Member
Oh man! It's shockingly good, and every bit I always wanted to do but never did. I have to hear how does it sound in real.
ranjeetrain
New Member
Where did you find such a pipe? Is it strong enough? I was thinking of using cardboard pipes. But two reasons, (1) they are not strong enough, (2) they are not available in all sizes.
Thanks for the reply.
My query was only regarding the unity of gain and the pipe length. Hope to listen to them when I visit Cochin.
@ranjeetrain
It's a very strong and costly Pipe !
It is called HDPE (High-density polyethylene)
More info. can be found in the below location.
High-density polyethylene - Wikipedia, the free encyclopedia
I find this pipe best for audio purpose since its very strong and have good acoustic property. It is available in various dia. and thickness which satisfy all your needs!
It's an industrial grade pipe for heavy duty purposes. It's available everywhere.
I have used around 17mm wall thickness pipe for this project!
It's a very strong and costly Pipe !
It is called HDPE (High-density polyethylene)
More info. can be found in the below location.
High-density polyethylene - Wikipedia, the free encyclopedia
I find this pipe best for audio purpose since its very strong and have good acoustic property. It is available in various dia. and thickness which satisfy all your needs!
It's an industrial grade pipe for heavy duty purposes. It's available everywhere.
I have used around 17mm wall thickness pipe for this project!
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victor77
New Member
@bijinmb we would really appreciate it if you could post a video of the speakers and how it sounds!!
keith_correa
Well-Known Member
Unreal!!! Really unreal!!! Awesome build!!!
Outstanding! good to see such creative designs in DIY.
Have you taken any FR measurements yet? I am keen to to see the upper midrange and high frequency spectrum.
You could get more gain at low frequencies by converting the LF section into a bipole - ie: connecting another 10" driver to the other end.
Have you taken any FR measurements yet? I am keen to to see the upper midrange and high frequency spectrum.
You could get more gain at low frequencies by converting the LF section into a bipole - ie: connecting another 10" driver to the other end.
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