I'm installing 3-way component speakers in my car and want to calculate the ideal sealed enclosure volumes for the mid and woofer which will be mounted in separate 'pods'
I'm trying to use the calculator at micka.de but not sure what to put in as desired QTC.
Can some one explain what I number I should enter?
The specs of the drivers are as follows:
I'm trying to use the calculator at micka.de but not sure what to put in as desired QTC.
Can some one explain what I number I should enter?
The specs of the drivers are as follows:
An externally hosted image should be here but it was not working when we last tested it.
Look at the huge peak in the response at around 200Hz. This indicates your box volume is too small for the woofer/desired Qtc. A Qtc. for the enclosure of .707 is maximally flat and that's OK.
Call me a whatever, but I've never liked sealed enclosures with a "flat" Q of 0.707, probably because they're rolling off a bit sooner than other designs. I usually go for a Q of 0.9 or so to compensate.
No reason to call you anything other than a contributor to this thread.
The calculated "Q" and real world, realized, "Q" might turn out to be different.
I have heard some spot on .707 bass systems that were amazing; I have also heard several sealed Q .707 (supposedly) that were awful.
Right, a flat Q of a unit that has really low Fs is a completely
different experience than the one with significantly higher.
What's the use of Q conserns if the speaker will sound thin!
I don't know.
different experience than the one with significantly higher.
What's the use of Q conserns if the speaker will sound thin!
I don't know.
I have woofers that sound horrible when tuned to 0.7 in a sealed box. Tried them in a BR optimally tuned and didn't sound good too.
In the end, I tuned them with a higher Q. I lose the low bass but at least I get some bass detail.
And this is with them measured with DATS and LMS. I can only conclude that while TS can predict the bass response, it cannot tell how a woofer will sound like. The only way is to load it and play some music.
In the end, I tuned them with a higher Q. I lose the low bass but at least I get some bass detail.
And this is with them measured with DATS and LMS. I can only conclude that while TS can predict the bass response, it cannot tell how a woofer will sound like. The only way is to load it and play some music.
Put a bump in the response somewhere at around 70Hz to make them sound dynamic and compensate for the small cone Sd. So, Qtc > 0.7 - I`d go with 0.9-1 🙂)
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