how tune my subsonic filter with my BTL 15?

[Damien02 0]

Hello all

my box is finished,carpeted ,tuned at 33hz... what is the best tune for my subsonic filter? my ampi is a DD Z1

thanks a lot

[JimJ 11]

You probably won't need it.

Unless you listen to a lot of baroque organ pieces.

There's simply not that much there in mainstream music below 30Hz.

[Fi Car Audio 64]

As it is a 24dB/Oct filter I would set it 28 Hz or so. This should give you good coverage below tuning. Without an scope it is difficult to tell exactly where on the dial that is though...

You simply want to keep the sub from moving too far mechanically under tuning. So if you feel or hear issues, turn it up a little higher, if not... good

Please keep us posted on how it sounds.

Thanks,

Scott

[almond 0]

use a dmm.

[JimJ 11]

use a dmm.

There's going to be a impedance spike near tuning, unless you have a clamp meter I'd be very careful with this...

[almond 0]

i'd unplug the sub and then use the dmm sorry for being unclear. that will give you a constant voltage.

[Damien02 0]

thanks for all your answer

i will go to use a 28hz tune cd track and tune the subsonic to no hear it...