Hi Brucek and Wayne,
The pre-out L+R is still active when I run the main speakers with the internal power of my receiver so I donīt need to split the signal. The active sub has itīs own adjustable low cut filters, selectable 12 or 24dB/oct. The BDF will only be hooked up with the sub signal.
The reason to add a pre-amp (remote controlled) is to make adjustments from the sweet spot, nothing else. The ordinary sub-out can be controlled with the receivers remote, but unfortuanately is this output not activated in Source Direct mode...
What will happen if the signal is kind of low into the BDF, letīs say I only reach half the blinking leds when I listen with normal to high volumes? I mean, if you listen with only 10 % of the potential volume, will the BDF make the sub sound less good? I donīt understand
Anyway, a BDF is ordered!
I will get a pre-amp if I feel itīs necessary after the installation of the BDF/REW.
Thank you so far
Martin