This leads me to a question I have had about the Powered Towers. I have a set of BP2004TLs. The manual states, when talking about speaker-wire only connection:
" The speaker’s electronics will take an infinitesimally small signal from the speaker level input and convert it to a low-level signal which then drives the built-in subwoofer power amp."
Normally a speaker system's impedance drops as frequency drops, hence a low frequency signal will draw more power from the amp. Since the Mid-Bass drivers in this system have passive crossovers, I imagine they will not lead to a large draw of power at the lower frequencies.
So, is this statement infering that the input to the sub's amplifier is high impedance, therefore, impedance at the speaker wire terminal for low frequencies is high, and, therefore, system this does not put the demand on the AVR amp at low frequencies that a passive system would?
Is there a measured impedance graph available for the Powered Towers?