Speck Electronics Xtramix - Manual (Page 38)

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Refer to Figure 6 for location of items 1 thru 4
Typically, this input is used to connect one side of a stereo or dual voice
source. When a channel is operated in the stereo mode, the left input is
assignable via the Input Channel Level and Balance/Pan Controls to the
four odd subgroups; 1,3,5,7.
Typically, this input is utilized to connect the alternate side of a stereo or
dual voice source. An input channel cannot function in stereo unless the
right input is connected. When a channel is operated in the stereo mode,
the right input is assignable via the Input Channel Level and Balance/
Pan Controls to the four even subgroups; 2,4,6,8.
Connections to the 20 stereo input channels of the Xtramix should be
made with standard balanced tip, ring, and sleeve (TRS) 1/4" plugs as
shown in Figure 7.
When connecting a single source (mono signal), to any stereo input
channel, use only the left input connector. Doing so effectively converts
the channel status from stereo to mono thereby eliminating the need for
any external "Y" type connections.
Each stereo channel incorporates an effects Stereo/Mono switch. When
this switch is in the Stereo (out) position, the source for the odd effects
sends (1,3,5, & 7) is the left input signal, and the source for the even
effects sends (2,4,6, & 8) is the right input signal.
When the Stereo/Mono switch is in the Mono (in) position, the source
for effects sends 1 thru 8 is the algebraic sum of the left and right synth
signals, post (after) the input level control.
A yellow LED at the front of the input channel will illuminate whenever
its Stereo/Mono Switch is depressed, indicating the Mono status of
operation.
Input Channel
Connections and
Switches
REAR PANEL CONTROLS
1. Left/Mono Channel Input Jack
2. Right Channel Input Jack
Mono or Single Source
Connection
3. Effects Stereo/Mono Select
Switch
Fig 7 Stereo (TRS) plug
Chapter 4 Operation Section