Linear microZOTL User Manual

microZOTL Preamplifier User Guide
WARNING: For safety, the cover of this amplifier should be secured at all times. DC
voltages as high as 450V and peak AC voltages as high as 800V are present inside. The
service information contained in this manual is intended only for trained service
personnel.
The Linear Tube Audio microZOTL Preamplifier is a full size, full function, high
quality Class A preamplifier and headphone amplifier utilizing ZOTL (Zero-hysteresis
Output Transformer-Less) technology. There are 5 inputs, 2 preamplifier outputs, a
tape monitor, remote control and front panel controls, input LEDs, and a front panel
display.
Rear Panel
Rear Panel Connections:
Power In: The unit operates in both 115V 60hz and 220-240V 50Hz, but has to be
configured at the factory. The unit should be wired for your country when you
receive your unit from the factory.
Inputs: There are 5 inputs to the microZOTL Preamplifier. All are single ended (not
balanced). Four are RCA stereo pairs. Input 5 uses combination XLR/Phone Jack
inputs. These are not true balanced inputs unless the optional True Balanced Input
option has been purchased and configured at the factory. Connect your DAC, CD
player, Phono Preamp or other line level device to these inputs.
Preamp Outs: There are two identical preamplifier outputs. These are also single
ended (not balanced). Connect your amplifier or subwoofer to one of these outputs.
Tape Monitor In and Out: Whatever Input (1 thru 5) is selected is always present
at the Tape Out connector. This is true even when listening to the Tape In. The Tape
Monitor switch selects whatever is being sent to the Tape In connector. This is
typically a Tape Recorder playback output, but can be used with any device's line
level output.