Avid Technology Eleven Rack, User Manual

Page: 17 / 124

Chapter 2: Hardware Overview 9
Control Knobs
Use the Control knobs to access amp and effects
controls, as well as other settings throughout
Eleven Rack. The controls are pre-assigned, de-
pending on the current mode. The knobs light
up in different colors, depending on their state:
Amber
The current knob is assigned to an amp,
cab, or FX loop parameter.
Green
The current knob is assigned to an effects
parameter.
Red
The current knob is positioned differently
than the assigned control’s saved position in the
current Rig. You can match the knob position to
the saved parameter by turning the knob until it
lights Amber or Green again.
When a Control knob isn’t active in the current
screen, it is not lit.
Phones Output
The Phones output is a 1/4-inch TRS jack that
drives a pair of headphones with the same signal
that is being sent out of the Main outputs of
Eleven Rack. This can be either the output of the
current Rig when using Eleven Rack, or the out-
put of Pro Tools or other applications when us-
ing Eleven Rack as an audio interface.
The headphone output level is adjusted in tan-
dem with the Main volume when you turn the
Volume knob on the front panel of Eleven Rack
or adjust the Main volume from within
Pro Tools. If you want the headphone volume to
differ from that going to your speakers, you can
adjust the Headphone Offset setting in User Op-
tions mode.
Output To Amp 1 (L)
The Output To Amp 1 (L) is one of two outputs
specifically designed for connecting to the input
of a guitar amplifier. Since most amplifier input
jacks are located on the amp’s front panel, we
put one of these jacks on the front panel of
Eleven Rack for easy patching.
The other Output to Amp jack is located on the
back of Eleven Rack. It can be used indepen-
dently of Output 1, or along with it for stereo
amplifier configurations. The Output to Amp
jacks can output a live guitar signal in real time
as you play, or a pre-recorded signal from
Pro Tools, for re-amping purposes.
You can select from specific points in the signal
chain to feed each Output To Amp jack. This lets
you choose the amount of processing you want
on the output signal.
Guitar Input with True-Z
The Guitar input is a 1/4” TS, instrument-level
input. Designed for electric guitars, the jack also
works well with bass and acoustic guitars with
pickups, or even vintage electric pianos.
Eleven Rack features a special variable-imped-
ance circuit called True-Z, which automatically
changes the input impedance of the Eleven Rack
guitar input depending on which amp or effects
model is first in the signal chain of the current
Rig.
True-Z alters the frequency response of your gui-
tar signal by loading your pickups in the same
manner as plugging into a real amp or effect.
This feature can also be manually controlled
and saved as part of a Rig setting.
For more information on Headphone Offset,
see“Headphone Volume” on page 94.
Most recent keyboards have line-level out-
puts and should be connected to the Line in-
puts on the back panel of Eleven Rack.