Constellation Audio Hercules II - Manual (Page 13)

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4. If these steps do not restore sound to both speakers, turn the rear power switch off on the Hercules II Mono
or biwired Hercules II Stereo connected to the speaker that is not working, or on the single Hercules II Mono
amp. Leave the music playing, and allow it to continue to play until the sound dies out. This will discharge the
power supply to avoid possible electrical shock or amplifier damage. If you are using Hercules II Monos or
biwired Hercules II Stereo amps, connect the left speaker to the amplifier normally used for the right channel,
and vice-versa. If you are using a non-biwired Hercules II Stereo amp, switch the speaker cables, connecting
the left speaker to the amplifier’s right channel and the right speaker to the amplifier’s left channel. If the
same speaker doesn’t work—if, say, the left speaker was silent before and it’s still silent after you switch the
cables—you probably have a malfunction in that speaker. If the sound moves to the other speaker—i.e., if only
the left speaker was playing but now only the right speaker is playing—contact your Constellation Audio
dealer.
Sound seems unfocused
1. Play a CD of typical pop vocals and sit in front of your speakers at an equal distance from both (at least 8
feet away from each speaker). If the vocals seem to come from between the speakers, they are connected
correctly. Alternatively, you can use the “barking dog” test from the Stereophile Test CD or a similar phase
check test from another test CD.
2. If the vocals seem to come from all around you, make sure that the cables on both Hercules II Monos (or
both channels of the Hercules II Stereo amp) are connected properly, with the marked connectors or cables
connected to the positive (red or +) binding post on the amplifier, and the unmarked connectors or cables
connected to the negative (black or -) binding posts.
3. If you need to change the speaker cable connection, turn the amplifier off first. To avoid possible electrical
shock or damage to the amplifier, you must discharge the energy stored in the power supply. To discharge
the power supply, turn the power off with music playing. It may take up to a minute or so for the sound to die
out. After the sound dies out, it is OK to change or adjust the cables.