Hi,
Judging from the graphs below ... would the sub I wanna build outperform the PB12-NSD sub made by SVS ?
Its a 120 liter box tuned to 20hz using a 500watt bash amp with PEQ at 80hz -2db and static gain +3db with high pass filter @15hz
Transfer Magnitude
SPL
Max SPL
[img="http://img185.imageshack.us/i/maxspl.png"]Imageshack - maxspl.png[/img]
Amp load
Cone excursion
Group Delay
Transfer Function Phase
Thanks
Judging from the graphs below ... would the sub I wanna build outperform the PB12-NSD sub made by SVS ?
Its a 120 liter box tuned to 20hz using a 500watt bash amp with PEQ at 80hz -2db and static gain +3db with high pass filter @15hz
Transfer Magnitude
An externally hosted image should be here but it was not working when we last tested it.
SPL
An externally hosted image should be here but it was not working when we last tested it.
Max SPL
[img="http://img185.imageshack.us/i/maxspl.png"]Imageshack - maxspl.png[/img]
Amp load
An externally hosted image should be here but it was not working when we last tested it.
Cone excursion
An externally hosted image should be here but it was not working when we last tested it.
Group Delay
An externally hosted image should be here but it was not working when we last tested it.
Transfer Function Phase
An externally hosted image should be here but it was not working when we last tested it.
Thanks
I dn't know if it is overkill, but you have forgotten to take room gain into account. I shoot for a response that starts declining at 50-80 hz and am looking for the lowest F10 (f3 is meaningless)
Add a 3-6 dB per octave uplift with a corner at ~70 hz and see where your curve ends up.
dave
Add a 3-6 dB per octave uplift with a corner at ~70 hz and see where your curve ends up.
dave
Dave's exactly right about the advice he's provided. With the results you show, the only place that it'll sound right is outdoors.
Best Regards,
TerryO
Best Regards,
TerryO
Ok, Thanks for the replies.. would this be any better then ?
Transfer function magnitude
Imageshack - 17995002.png
SPL
Imageshack - 16619855.png
Transfer function magnitude
Imageshack - 17995002.png
SPL
Imageshack - 16619855.png
If this is for movies the first one will do.
If this is for music the last one will do.
If this is for both you want the first one, and something to customize the EQ.
If this is for music the last one will do.
If this is for both you want the first one, and something to customize the EQ.
..If this is for both you want the first one, and something to customize the EQ.
In this enclosure: Use any Sub-amp > 160W and EQ is not necessary as this enclosure should be stuffed with wool like an TL to half-ways down the line, counted from the rear of the driver:
b🙂
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