User manual

Chapter Five: Power Amplifier
5.1 Tone and Volume of the Power Amplifier
5.1.1 Master Volume
As the name suggests, this controls the overall, volume of the
amplifier.
There is also a second, selectable master volume control, which allows
volume
adjustments via remote control device while playing.
5.1.2 Presence The presence knob controls frequencies over 3kHz. Treble is
produced anddispersed in a very small beam from the speaker, so be sure to
position yourself inthe projection area of the speaker when making
adjustments.
5.1.3 Deep
The Deep Control is an active bass control contrary to conventional
bass controls.It controls the frequencies around 120Hz without
influencing the overall dynamicrange of the power amplifier. Diezel Co.
is not responsible for disintegratingspeaker cabinets.
5.2 Power Amplifier Tubes
5.2.1 Function
As the name suggests, the power amp section is the part of the
amplifier thatproduces output power, measured in watts. Preamp
signals are sent to the poweramp(s), which amplifies this signal to a
level that is acceptable for loudspeakers.Guitar amplifiers utilize
several different types of power amps, which differ inoutput power
and tone. We chose the tube type power amplifier for its tried
andtrue performance and familiar tonal behavior.
5.2.2 Selection
Diezel Co. installs the most reliable and best sounding tubes that are
currentlyavailable in sufficient quantities. So it is possible that tube