M-AUDIO Fineline - Manual (Page 5)

Overview
While reading the following description of how FineLine works it may be
helpful to refer to the preceding Front and Rear Panels - Figure 1, or the
Block Diagram - Figure 3 located in the back of this manual.
Left and Right Inputs, Level Pots, LED Indicators and the
Mono/Stereo Switch
Basically, FineLine functions as either a 10 channel, stereo or 20 channel
mono line mixer. With the front panel Mono/Stereo Switch set to Stereo,
signals plugged into the 10 Left Inputs will be mixed to the Left Output
jack, and signals plugged into the 10 Right Inputs will be mixed to the
Right Output Jack.
The level of the Left and Right mixed Output signal is set by the Left and
Right Level pots which provide 12 dB of gain when turned all the way up.
When the Mono/Stereo Switch is set to Mono, all 20 inputs are combined
and fed to both the Left and Right Outputs while the Left and Right Level
pots independently control their respective output levels.
The Left and Right input signals are each monitored by LEDs which show
signal present and clipping levels.
Headphone Output and Phones Level
The left and right output signals are also routed to a stereo headphone
amplifier which has its own volume pot for convenient monitoring.
Send Inputs (9, 10, 19 & 20), Send Level Pots & Send
Output
In addition to being sent out the normal Left and Right Outputs, channels
9 and 10 of the left inputs and 19 and 20 of the right inputs, are sent to
another mixing buss - the Send Out. These signals are mixed according to
the four front panel Send pots and are mixed at the mono Send Output.
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