High pass filter slope of alpine pdx 1.600 mono amplifier?

[papiboul]

does anyone know the slope of the high pass filter (ssf, subsonic filter slope) of the amp?

it isn't in some places ive looked. i havent called anyone to find out.

but if it isnt stated than it goes by the slope of your subs? e.g mine my subs are 12/db octave in a sealed box.

the low pass filter slope for the 1.600 amp is 24/db/octave. it can't be the same as to the high pass filter slope can it?

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