MartinLogan Speaker - Manual (Page 9)

This setup is recommended if your Abyss will be used in a
2-channel only system with full-range front loudspeakers .
When a signal is connected to the Abyss’s Left/Right Inputs,
the Abyss’s internal low pass filter is active .
Signal .Connection .(see .figure .8):
1 Connect the left and right outputs of your amplifier to
the left and right speaker level (high level) inputs of the
Abyss using quality speaker cable .
If your amplifier only has one set of outputs you may
connect your amplifier to your speakers as normal and
run an additional set of cables from your speakers to the
Abyss’s left and right speaker level (high level) inputs .
It is also possible to connect the left and right outputs
of your amplifier to the left and right speaker level (high
level) inputs of the Abyss and run an additional set of
cables from your Abyss to the speakers .
Recommended .Control .Settings .(see .figure .9):
1 Set the low-pass filter switch to the closest option equal to
70% of your loudspeakers lowest frequency response .
2 While playing music with bass content, turn the level con-
trol up until the music has deep extended bass, being
careful to avoid levels that become overwhelming .
3 Try the phase control in different settings until the best
blending is obtained . If you are using the Abyss to augment
other MartinLogan products, we suggest you start with the
phase set at 90° .
Figure .9 . Control settings for 2-channel mode using speaker level inputs .
2-Channel Mode Using Speaker Level Inputs
Figure .8 . Signal connection for 2-channel mode using speaker level inputs .
Connections and Control Settings