Linear Tube Audio ZOTL10 Mk.II, User Manual, Page: 5 / 8

Operating Modes
DIRECT: RCA inputs go directly to the amplifier, bypassing the
volume control.
W/VOL: RCA inputs go through a volume control, adjustable via
the front panel knob.
Stereo/Mono Switch: Two ZOTL10 amplifiers can be operated as
mono-blocks, which deliver approximately 1.7x the power into 8
Ohms. To operate in the mono mode:
1. Set the Stereo/Mono switch to Mono.
2. Use the left input of either the DIRECT or W/VOL pairs of
RCAs, depending on which you plan to use.
3. Using jumpers cables, bridge the two positive (red)
speaker terminals together and bridge the two
negative (black) speaker terminals together. DO NOT
CONNECT the red and black speaker output terminals
together, as this shorts the amplifier. Once bridged,
either positive terminal and either negative terminal
can be used to connect your speaker.
Protection Circuit
The amplifier is DC-coupled and has a protection circuit that will
shut down the amplifier internally if certain parameters are sensed.
The protection circuit can also be triggered by over-driving the
amplifier. If the amplifier goes into protection, which is signaled by
the amplifier being turned on but not playing music (be sure to
check that it is the amplifier causing the problem and not another
component), simply turn it off, wait a few minutes, and turn the
amplifier back on. If the amplifier does not reset successfully, try
waiting an hour before turning back on. If the amp is still
unresponsive, or if the protection circuit is continuously triggered,
contact us.
Fuses
There are two 5x20mm 4A Slow Blow fuses in the IEC inlet of the
Power Supply.