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|28th February 2009, 08:47 AM||#1|
Join Date: Aug 2008
Filter for 4" FR Tang Bands
I'm making my first set of speakers (it's actually a portable boombox) and have a quick question before I wire them up.
There are two enclosures driven by an Amp6-Basic with one 4" Tang Band W4-1320SB full range driver in each enclosure. The dimensions of each enclosure are 125x145x230mm with a round port of 38x90mm. The drivers parameters are:
Vas: 5.9 litres
Fs: 75 Hz
Re: 6.8 ohms
SPL: 89.02 dB
Pe: 25 watts
Now I've given all the technical stuff... onto my question:
Throughout the various threads I've made during this project, I have been told several times it would be wise to add a filter or some such thing to eliminate lower end bass as it could damage the speakers. Personally, I have no idea if this is necessary or not or how to implement it. So, basically I was wondering if anyone could please enlighten me on what exactly this filter I may/may not require is, whether it would be good to put in and how to go about that.
Thanks for your help.
|28th February 2009, 12:56 PM||#2|
Join Date: Jan 2009
Location: upper austria/near linz
there is a slip of pen: qts=0,37
usually you do not need a subsonic filter i think.
only for special applications,like in combination with a subwoofer or so.................
simpliest filter is a non polarised electrolytic cap round about 1000uf in series with the box.
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