User manual

Chapter Two: Using Your Einstein
2.1 Mains Connections, Power and Standby
2.1.1 Mains/Connection to Power Outlet
Please make sure that both switches (Power and Standby) are in the
off positionbefore connecting to the mains circuit. Verify line voltage
before connecting thepower cord. Never start Einstein without
connecting speakers to the properterminals. (See 3.2.5)
2.1.2 Power up, Warm up, Standby off
First, turn the Power switch to on (facing up). The indicator light will
turn on.This starts the tube heating process. After about 40 seconds,
the tubes should besufficiently heated for normal operation. Your
Einstein is then ready for operationand the standby switch can be
turned to “run” (also facing up). Prematureactivation of the standby
switch will lead to unnecessary tube stress andsubsequent reduction of
the power tube’s life span.
2.1.3 Power Tube Caution
Tubes are electronic components that function only with vacuum intact
and undervery high operating temperatures. Each tube has one or
more heating filaments,much like a light bulb. These filaments heat up
the anode of the tube. If youswitch the standby switch to the “run”
position before these anodes have reachedtheir operating temperature
(when the anode surfaces are not heated evenly), thiscauses undue
stress to the tubes and their related components inside the
amp.Always give the amp its much needed warm-up time, even if
musical inspirationhits you with a full force.
2.1.4 Operating Temperature
It will take a little more time after warm-up until everything inside the
amp isworking in sync and to its fullest potential. A trained ear will
notice a slightlywarmer tone and better complexity in tone after
playing the amp for a short while.It’s like stretching before exercising.