YELLOW SINGLEPREAMPS
7
PRACTICAL ADVICE
AVOID GAIN STAGING: When using YELLOW SINGLE with other equipment such as mixers, speakers
or ampliers, it is important to avoid distorted input signals as these can cause damage to equipment.
When setting input levels on your YELLOW SINGLE, start turning up the GAIN control until the OVERLOAD
LED starts to blink. At this point, turn the GAIN back down slightly. This correctly sets the preamp level
depending on your actual input signal. Set the MASTER VOLUME between 30% and 60% to avoid raising
the natural noise level of the circuit to an audible level. Now you can freely set the channel volume as you
please.
GROUND CONNECTION: Although all ground connections are correctly implemented on YELLOW
SINGLE, they are not directly connected to ground (and are therefore “oating”), as they actually depend
on the grounding connection of the device to which the YELLOW preamp is connected. If that device is not
properly grounded, or generates a ground loop, it is possible to experience hum. Solving the problem
requires attention to the device’s ground connection, usually via its GROUND LIFT switch.
In short: the ground connection must be provided by the device to which YELLOW SINGLE is connected.
POWER SUPPLY: We highly reccommend to only use the provided power supply in order to avoid any
possible noise inducted by the electrical system. However, if you really want to use another PS, please be
sure that the connection is center positive. You should see this symbol (or a similar one) on the DC connector.
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