Linear Tube Audio UL+ Instructions Manual page 10

VOL - The volume display turns off but the input LEDs remain on.
ALL - The volume display and input LEDs turn off.
L-R Remote Arrows: There are two functions that can be selected
for the Left-Right Arrow buttons as follows:
Off – the remote Left-Right arrow buttons are deactivated.
BAL – the remote Left-Right arrow buttons will control the balance.
Inp – the remote Left-Right arrow buttons will select the input.
Sub Out: The subwoofer output can be configured for Stereo,
Mono, or Mute. Stereo is the default output. Mono sums the two
stereo outputs. Mute disables the subwoofer output for all inputs
and outputs.
Phono: This sub-menu appears if you have an MM/MC phono
preamp installed in your ULi+. Please refer to the separate Phono
manual for detailed information.
Power-On Override: When activated, the unit powers on when the
AC power is turned on without needing push the front panel
power button.
Reset to Default: The amplifier controls are set to Balance = 0, Gain
Level = 0dB, Display Timeout = Off, Home Theater Mode = None,
and Display Brightness = 1, and Remote Left-Right Arrow buttons
set to Not Active.
Tubes
The ULi+ is supplied with selected vintage miniature dual-triode
tubes and New Old Stock (NOS) 17JN6. The 17JN6 are a
Compactron-style, beam-power pentode "Sweep Tube" designed
for horizontal-deflection in cathode ray televisions with limited
commercial audio application outside of our unique ZOTL circuit.
The tubes operate at low current, which allows them to have an
extended life.