Constellation Audio Virgo Preamplifier - Manual (Page 18)

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F. Check that the volume is at a sufficient level. Do not turn the volume all the way up to check this, as if
sound is reestablished while the Virgo is set to output maximum volume, damage can be done to your
speakers and amplifiers.
G. If none of these actions restores the sound, 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 your amplifier are connected
properly, with the marked connector or cable connected to the positive (red or +) binding post on the amplifier,
and the unmarked connector or cable connected to the negative (black or -) binding post.
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.
Sound comes from the wrong speaker
If left-channel sounds are coming from the right or vice-versa (i.e., the violins in an orchestral recording come
from the right speaker, not the left), check the cable connections between the source and the Virgo, and the
Virgo and your amp. Make sure left-channel cables are connected to the left channels of the Virgo and amp,
and right to the right channels.
Only one speaker is working, or one speaker is playing a different piece of music
1. Check each cable, starting with the source component. Make sure the left channel of the source goes to the
left input on the Virgo (which is on the right side, as you're looking at the back panel), and the right channel to
the right input (which is on the left side). On the back of the Virgo, the left and right inputs are NOT next to each
other. They are on opposite sides of the unit. In other words, the XLR input numbers are 1, 2, 3, 4, 4, 3, 2, 1,
and the RCA input numbers are 5, 6, 7, 8, 8, 7, 6, 5.
2. Check that the cables to the amp are on the correct channels of the preamp. The XLR and RCA outputs on
the back of the Virgo, from left to right, are 1, 2, 2, 1.
Remote control does not work
1. Push any button to see if the remote’s backlight illuminates. If the backlight does not illuminate, use a
3/32” Allen wrench to remove the remote’s battery compartment cover, then replace the remote’s two AAA
batteries and replace the cover.
2. If the remote’s backlight does illuminate, move the remote a few feet away to a different location and try
again. The remote requires a clear line-of-sight to the infrared detector on the Virgo’s front panel.
Left-to-right balance seems off
1. If the unit has not warmed up for at least 15 to 30 minutes, there may be a temporary imbalance in the
volume control’s light-dependent resistors that will cause a slight channel imbalance. You can compensate for
this with the balance control, or just wait for the unit to warm up. Better yet, we recommend leaving the Virgo
on all the time for the best performance.
Balance and volume controls do not function
1. If you are using the input configured for home theater bypass, this situation is normal—volume and balance
controls do not function in this mode.
2. If you are not using an input configured for home theater bypass, you need to clear out the minimum and
maximum volume settings for the input you are using. Press the multifunction button labeled Setup on the
screen, then press the Default button.