Quicksilver Audio Line Stage Preamplifier
Operating Instructions
Thank you for purchasing a Quicksilver Audio Line Stage Preamplifier. This unit was designed to be simple
and reliable and to give wonderful sound quality at a reasonable price. We, at Quicksilver, are confident you
will enjoy it!
ALLOW ADEQUATE VENTILATION
The preamplifier should be placed where it will have at least 4 inches of air circulation above it.
SYSTEM GROUNDING
Your preamp has a three pronged grounded AC plug. For best grounding the Quicksilver Line
Stage Preamp should provide the system ground. If you ground other pieces independently, a
slight hum may be audible.
AUTO-MUTE
When the preamp is first turned on, it will automatically mute the outputs for approximately 30
seconds. During this time the LED on the front panel will light RED. When the preamp comes out
of auto-mute, the LED will light GREEN. If the preamp is turned off, or power is lost for longer
than 3 seconds, the auto-mute circuit will re-engage.
TUBES
Your preamp is shipped with J.J. 12AT7s, which we feel provide the best sound, and have a
life span of many thousands of hours. The J.J. 12AT7 is a new design and provides superior
performance to new old stock 12AT7s. The Chinese also have a redesigned 12AT7 which
provides very good performance.
FUSE
Never use larger than a 0.5 amp fast-blo fuse. If the fuse continually blows, the preamp should
be returned to Quicksilver for servicing.
NOISE
A small amount of hiss from the speakers, in most systems, is normal. If excessive noise is noticed
in one channel, with the volume control turned all the way down, then a tube may be noisy. When
facing the preamp front panel, the tube for the left channel is on the left side and the tube for the
right channel is on the right side. If reversing the tubes causes the noise to go to the other channel,
then that tube is the noisy one. If it makes no difference, the noise problem could be another
component.
This preamplifier is phase inverting.
