3 Installation
3.1 Unpacking
Unpack your L1 preamplifier and store the packaging for future use.
3.1.1 Removing the security screw
The transformer base plate must be secured during transportation to avoid damage to the isolating silent blocks. The security screw
is located at the bottom of the unit. To remove the security screw, tilt the unit on its side and unscrew. Do not tilt the unit on the
front or back panels as this may damage the user control knob or the connectors.
Security screw location
(1) Security screw. Must be mounted for transport and removed at installation
3.2 Positioning your unit
Position the L1 unit on a stable and sturdy base. Make sure air is able to flow freely around the unit.
For best transmission and immunity to external noise, the L1 input should be connected to the upstream unit using a balanced XLR
cable like the CH Balanced Link cable.
3.2.1 Unit level adjustment
The L1 preamplifier is equipped with adjustable feet. Each foot has an internal spike which, when correctly adjusted, allows the unit
to rest on the spikes and provides a preferred path to evacuate mechanical vibrations. When delivered from factory, the
Rev 1.0 L1 User Manual 15
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