GET sum.mation, Руководство пользователя

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with both a built-in active summing network, as well as a passive summing
node - basically an amplified and unamplified mode. Due to the nature of
the servo controlled summing amp design, both modes
can not be used
at the same time. To select passive mode simply unplug the AC cable;
remove the top cover; and switch the left & right stereo bus jumpers from
"active" to "passive" as marked on the circuit board:
A sum.mation unit
must be in passive mode in order to cascade into
another sum.mation unit. A maximum of two units may be cascaded
together on the same summing bus. The receiving unit may be in passive
or active mode as the user sees fit. Failure to follow these instructions
may damage the unit and void the warranty.
When using sum.mation in passive mode with external microphone
preamps as makeup gain,
be aware that 48V phantom power can damage
the sum.mation circuitry. Please be sure to turn off phantom power on
your mic pre's before connecting sum.mation to them.
**A few words about grounding**
When using sum.mation, the user must be aware that there are several
ground paths possible: the sum.mation chassis; the chassis of the
equipment feeding
into
sum.mation; the chassis of the equipment
sum.mation is feeding
into
; and the USB connection to the host computer.