Technics SA-DA20 Operating Instructions Manual page 11

Front speakers (bi-wiring connection)
t
^Note ■
This receiver does not have an amplifier for
the subwoofer.
To connect a passive subwoofer
• Connect another amplifier and connect
the subwoofer to it.
Or
® Connect a passive subwoofer that has
front speaker terminals.
(See the operating instructions of the
speaker system for details.)
11
RQT5982