User manual

2.1.5 Power Tube Life
The power tubes of your amplifier are subjected to a certain aging
process. Oncesigns of aging, such as unreliability or unusual noise, are
detected, we suggest thatyou replace all power tubes at once.
Matched tube sets age relatively evenly, soour experience suggests.
This means that if one goes, the others are not far frommeeting the
same fate.The aging process manifests itself by a depletion of a thin
layer of wolfram on theanodes. This can take anywhere from 6 month
to 3 years, depending on theamount of use of the amplifier.
Chapter Three: Peripheral Connections
3.1 Front Panel Connections
3.1.1 The input jack (“IN”) receives your Electric Guitar signal by means of
a shieldedguitar cord with 1/4” mono style plug.
Your guitar cord is an important part of your signal chain and its
quality andconstruction type clearly affect the overall tone of your
rig. Try and buy the bestquality guitar cord that you can or want to
afford. Call us if you have doubts andneed recommendations. This is
where the smart “weak link” comment comes in.
3.1.2 Cable ABC
Some cords and cables sound very neutral; others color the sound
spectrum and/orattenuate high frequencies due to capacitance inside
the wire and the shield. Whatare we talking about? OK. A capacitor is
used in electronic crossovers, amongstother things, to divide low and
high frequencies. Capacitance in a cable cuts yourguitar’s high end to
a certain degree. Generally, the longer of a cord you use, themore of
the cord’s inherent characteristics will be audible.
3.1.3 Cable Selection
In certain circumstances, it is desirable to match a guitar cord to a
specificinstrument. One may use the otherwise undesirable qualities of
a cord to one’sadvantage, if one has the time and patience to
experiment with different cords andguitars. This should be done while
playing with your band, or while recording.Sometimes it is difficult to