Electro-Harmonix LPB-2UBE Quick Start Manual

Congratulations on your purchase of the LPB-2ube! The LPB-2ube is a full bandwidth
(20-20K), stereo pre-amp with an all-tube signal path using two premium 12AX7WB
vacuum tubes. Carefully reading these instructions will ensure you will get the most
out of your LPB 2ube.
Included with the LPB-2ube is a unique 12VAC/1000mA adapter.
adapter supplied. Using any other adapter can cause harm to you, the LPB-2ube and
the adapter. DO NOT LEAVE THE ADAPTER PLUGGED INTO A POWER OUTLET IF IT
IS NOT PLUGGED INTO THE LPB-2UBE.
WARNING: There are extremely high voltages in the LPB-2ube even when it
is unplugged – DO NOT OPEN THE LPB-2UBE.
INPUT LEVEL Switch –Selects between LO and HI input level. The LO setting will
provide more overall gain through the LPB-2ube, the HI setting provides less gain. If
the input signal is from a low-level source such as a guitar or an instrument that uses
pickups, then the LPB-2ube will work best in the LO setting. If the input signal is
from a line level source such as a synthesizer, sampler, or mixer, the LPB-2ube will
work best in the HI-setting. This switch controls both the left and the right channels
simultaneously.
DRIVE R & DRIVE L Knobs – Adjusts the amount of gain or drive for each channel.
Drive R controls the right channel and DRIVE L adjusts the left channel.
VOLUME R & VOLUME L Knobs – Adjusts the overall output level or volume for each
channel. VOLUME R controls the right channel and VOLUME L adjusts the left
channel.
LPB-2UBE
Stereo Tube Pre-Amp

- OPERATING INSTRUCTIONS -

- CONTROLS -

Use only the