Operation
Power-on and off
Input Selection
The P2X is powered on or off by pressing the control in
and holding it for 5 seconds.
When the unit powers on, it enters a 30-second warm-
up period for the tube to heat up and electronics to
stabilize. During warm-up, the LEDs will illuminate red,
starting with the first LED (all the way
counterclockwise), and advance in a clockwise
direction. When all of the LEDs are on, the 30-second
warmup period is complete.
After warmup, the volume will be ramped from zero to
the setting it was at when the unit was last powered off.
If, during this ramp-up, the knob is rotated, the volume
will stop increasing at the current level.
When powered off, the inverse of this happens, and the
volume is ramped from it’s current level to zero.
The P2X has three inputs. Pressing the control and
releasing it will advance the input selection to the next
input. For example, if you are currently on input 1,
pressing the control will advance to input 2. If you are
on input 3, pressing it will return back to input one.
The LED color will change when you change inputs,
indicating (via color) which input is selected.
When input 1 is selected, the LEDs are green. Input 2
makes the LEDs blue, and input 3 (the one on the front)
light the LEDs Magenta (pinkish).
Once powered on, rotating the control will change the
volume.
Volume is adjusted in 1dB steps, with fully clockwise
corresponding to maximum gain, and fully
counterclockwise muted. The first step up from mute is
-62dB.
Even though there are 64 volume steps, there are only
16 LEDs. So the LED will only advance with every 4
steps of volume change.
You can set the display brightness, as well as change
the appearance of the display from “bar” mode to “dot”
mode, in setup mode.
Adjusting the Volume
Push & Hold
Push & Release
Down Up
Volume
(Bar Mode)
Down Up
Volume
(Dot Mode)
In 1
In 2
In 3
