Denon AVR-3311 Owner's Manual page 54

Front A/B connection
The second set of front speakers can be connected to the SURR.
BACK/AMP ASSIGN terminals.
In this case, set "Set up "Amp Assign"" (vpage 53) to "Front B".
SW
FL(B) FL(A) FR(A)
For surround playback of a multichannel source, if you connect the
center speaker, surround speakers and subwoofers, 5.1-channel
playback is available.
Front speakers can be used separately, depending on the speaker's
specifications or playback source such as front speakers (A) for
multichannel playback and front speakers (B) for 2-channel playback
(vpage 81 "Front Speaker Setup").
2.1-channel/2-channel connection
FL
FR(B)
2-channel connection
For 2-channel playback, disconnect the
subwoofers.
n For connecting two subwoofers
Two subwoofers can be connected to this unit.
The same signal is output from each subwoofer terminal.
For speaker impedance and speaker cable connections, see page 4.
SW FR
Bi-Amp connection
A bi-amp connection is to connect separate amplifiers to the tweeter
terminals and woofer terminals of speakers compatible with the
bi-amp function. This prevents the back electromotive force (returned
force without output) of the woofer sent to the tweeter, which affects
the sound quality of the tweeter, and you can enjoy playback with
higher-quality sound.
In this case, set "Set up "Amp Assign"" (vpage 53) to "Bi-Amp".
q w
FL FR
(L)
When making a bi-amp connection, the same signal is output from the
front speaker terminal and the SURR.BACK/AMP ASSIGN terminal.
For surround playback of a multichannel source, if you connect the
center speaker, surround speakers and subwoofers, 5.1-channel
playback is available.
NOTE
• Use speakers compatible with bi-amp connections.
• When making bi-amp connections, be sure to remove the short-
circuiting plate or wire between the speaker's woofer and tweeter
terminals.
ENGLISH
Connect
q w
(R)
51