[Kal Rubinson]

Small and large are inappropriate terms. The real issue is the low frequency roll-off of the speaker. OTOH and IMHO, all speakers in a HT system should be bass managed so that a dedicated subwoofer can handle the real lows.

 

[Kal Rubinson]

No, they won't unless something else is screwed up. Do you have any useful crossover frequency options on your AVR?

 

[Kal Rubinson]

Seems like much is far amiss in your setup. Yes, you can select crossovers. See page 28 of the manual.
You can set distances and you can set levels (and they are more than likely NOT all the same).

 

[Kal Rubinson]

Crossover network
• Default setting:
100Hz
This setting decides the cutoff between bass
sounds playing back from the speakers
selected as
LARGE, or the subwoofer, and bass
sounds playing back from those selected as
SMALL
.4 It also decides where the cutoff will
be for bass sounds in the LFE channel.
1 Select ‘
X.OVER’
from the SP SETUP menu.
2 Use
/
to choose the frequency cutoff
point.
Frequencies below the cutoff point will be sent
to the subwoofer (or
LARGE
speakers).

As I said, you can select it.