This is a way to use the same amps and speakers for stereo listening and surround FL and FR speakers.
By using two passive switch boxes The DirectStream DAC w/Bridge II can be the preamp for the same power amps and speakers used for in a theater system.
The RCA outs of the DirectStream connect to Y cables. One set connects to “In 1” of the first box and out to M700’s. These cables end in 50Hz high pass filters for the 3.6 speakers. The second set of Y cables goes to “In 1” of the second box and out to GR Research W/Frame OB subs.
The XLR outs of a Oppo 205 connects to “In 2” of the first box and out to M700’s. This is a XLR to RCA cable with a capacitor dividing network built into the cable for the 3.6 speakers. The RCA outs of the 205 go to “In 2” of the second box and out to the OB subs.
There is only one stereo out of the first box to the M700 amps. Selecting 1 or 2 does the routing. Same with box to to the OB subs.
Pushing button “1” on both boxes selects DirectStream stereo. Pushing button “2” on both boxes selects Surround.