Lexicon MPX G2 - Manual (Page 25)

Lexicon MPX G2 User Guide
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The MPX G2 Insert Send is always active. When Gain is on, its signal is from the
Gain block output. When Gain is bypassed, or when no Gain effect is in the
program, its signal is from the Gain block input. Note that this signal passes
through a programmable level control (Edit mode: Mix: Send Level) and analog
noise gate before leaving the unit via the Insert Send jack. Note also that
whenever there are no active effects between the guitar input and the Insert
Send, a relay automatically switches in a “straight-wire” bypass path. This
ensures that there is nothing between your guitar and your amp unless one or
more pre-gain effects are active. (Until the MPX G2, the only way to get this same
kind of analog purity when using effects was to install a dedicated effects loop
switching unit.)
Inserting a jack into either (or both) Insert Return connectors breaks the
normalled connections between pre-gain and post-gain paths, allowing you to
insert an external device (guitar preamp, effects processor, etc.) into the MPX
G2 signal path. When an external device is inserted, the front panel Insert button
LED will light.
The external device can be bypassed by pressing Insert (its LED will go out).
When the MPX G2 is connected to an amp’s effects loop, you can use the Insert
button to bypass the amp’s preamp and send MPX G2 signals directly into the
amp’s power amp. This feature allows you, for example, to switch between your
amp’s high-gain channel and an MPX G2 Gain effect clean channel.
The Insert Return jacks have software-controlled sensing and switching circuitry
to automatically route signals depending on which jacks are used and the MPX
G2 bypass state.
When only the Right Insert Return is connected, its signal is split and sent into
both the left and right channels of the post-gain path. When the unit is bypassed,
the dry Insert signal will be present at both outputs.
When both Left and Right Insert Returns are connected, their signals are sent
in stereo to the left and right channels of the post-gain path. When the unit is
bypassed, the dry stereo signal is present at the outputs.
When only the Left Insert Return is connected, its signal is sent only to the left
channel of the post-gain path. The right channel of the post gain path is
“normalled” to the right channel of the pre gain path. When the unit is bypassed,
the dry Insert signal is present on the left output and the Guitar Input signal is
present on the right output.
Insert Send
Insert Returns
Automatic
Insert Return
Signal Routing
Right (Mono) Only
Stereo
Left Only