Manual

OPERATION.

Input Selection

You must ensure that the correct input connector, mic, instrument or line, is being

used from the required source. You can select the type of input by pressing the 'LINE'

switch at the top of each channel strip in or out. In the "up' position the mic input is

selected; depressing the 'LINE' switch selects the line input or instrument input as the

source. Note that you can have mic and a line / instrument input connected at the

same time but you will only be able to select a single input at a time. (NB do not have

anything connected to the line input when you have an instrument plugged into the

instrument input unless you want to combine 2 signals on the channel. Not

recommended)

Channel Gain Control

The gain control should be set to obtain the best signal to noise ratio, whilst preserving

adequate headroom. (i.e. as high as possible without causing signal distortion ) Any

changes in gain level should be gradual to avoid sudden overload or severe distortion.

Extra care should be taken with higher level inputs, and high gain settings should be

used sparingly to avoid an increase in the noise floor and the introduction of distortion.

Line Input

A typical line input will require less gain than a microphone signal, as it is a 'hotter'

source. You should have the gain set to a minimum when connecting a line input,

then gradually increase it to achieve the required level.

Instrument Input

A typical instrument level input will be lower in level than a line level signal but you

should still exercise caution with the gain, starting at a minimum setting and slowly

increasing until desired setting is reached. When connecting an instrument like guitar,

you can connect straight into the Fat Track without the need for an additional DI unit

or amplification stage, the Fat Track’s input stage acts as both your DI and preamp.

Microphone Input

When connecting a microphone to the Fat Track, start with the gain set to a minimum

value and gradually increase until the sound source is just tickling 0dB on the meters

when the source sound is at average output level. You can than choose how much you

would like to drive the valves to produce the required sound. If Phantom power is