8
Trigger Out Connection
The Trigger Out jack lets you loop or “daisy-chain” the trigger voltage to additional
amplifiers or other components.
Audio Trigger Sensitivity Adjustment
The Auto On Audio Sensitivity Control adjusts the audio signal level threshold to turn on
the Zamp v.2. It adjusts the audio trigger sensitivity from 30 mV (fully clockwise) to 2 V
(fully counterclockwise). The center position corresponds to 50 mV, which is suitable in
most cases.
Ground Lift Switch
The Ground Lift Switch isolates the circuit ground from chassis ground. This often helps
eliminate hum that results from ground loops caused by multiple ground paths such as
metal-to-metal contact with other components in an equipment rack plus the ground of the
AC cord. If you experience hum in the system, try moving the Ground Lift Switch to its
Lift position.
AC Power Connections and AC Grounding
If possible, plug your Zamp v.2 into the same AC outlet that powers your accompanying
audio components and especially the system controller. If you use a different AC outlet,
you may encounter AC hum caused by its differing ground potential.
Operating the Zamp v.2
Refer to the drawing on Page 4
On-Off Button
Manual Turn On
Press the On-Off button once to turn the unit on, press it again to turn the unit off.
Automatic Turn On
Your Zamp v.2 can be turned on automatically. See Automatic Turn On Options for
details about automatic triggering.
Level Controls
Each channel has an input level knob so you can adjust the input sensitivity of the Zamp
v.2 for the best signal-to-noise ratio with your preamplifier or system controller. If there
is no increase in background noise, we recommend setting both Level controls fully
clockwise.
Front Panel Indicators
AC Line
The amber AC Line indicator lights whenever the unit is plugged into a live AC source.
On
The On indicator lights green when the Zamp v.2 is on.
