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Copyright © 2012-2015 Cavalli Audio, LLC
Input/Output Selection
The Liquid Glass® has two single-ended (RCA) inputs, #1 and #2. Input #2 also has a loop out so
that you can connect other equipment from the LG. The LG also has two outputs, headphones
or preamp. The preamp output is located on the rear along with the input jack (P).
The headphone outputs are located on the right side of the front panel. The top, #1 Jack is a
standard TRS jack. The bottom #2 Jack is a 4 pin balanced XLR connector. Although the LG is a
single ended amp jack #2 is provided for headphones which are terminated with this type of
connector.
The input selector switch is the leftmost switch on the right side of the amp, under the volume
control. The left position selects input #1 and right position selects input #2.
The output selector is the rightmost switch under the volume control. The left position selects
for headphones. The right position selects for preamp output.
Using Preamp Out
The Liquid Glass® preamp out comes directly from the headphone output and cannot be used
at the same time as the headphone out is used. When using preamp out please remember that
the Liquid Glass® has an offset detector which disconnects the headphones if significant DC is
present at the output for any reason. This “disconnect” can sometimes lead to a loud pop in the
headphones. When the LG is used as a preamp this pop will be transmitted to the power
amplifier. It is rare for the Liquid Glass® to disconnect the output during normal listening, but it
can happen if there is something that goes wrong.
Please be aware of this when connecting
the LG to a power amp. Always turn on the LG first and wait for it to completely stabilize
before turning on the power amp. Do the reverse when turning the equipment off.
Cleaning
We recommend removing dust accumulation on the LG with compressed air from a can. Make
sure that the amp has been off and is cool before cleaning. For the front panel use canned air
and then, if needed, a good microfiber cloth to remove dust and other dirt from the front panel
and the inside of the tube cage.
