Rear Panel Callouts - Hartke TX300 Owner's Manual

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Rear Panel Callouts

PREAMP OUT Jack - This output jack is fed from the preamp, and may be used with an

external power amplifier, to connect to a mixing console, or to an effects processor. Use a

standard 1/4" instrument cable when connecting to external devices.

POWER AMP IN Jack - This line level input, low impedance jack connects directly to the

internal power amp, and can be used with external preamps. Use a standard 1/4" instrument

cable when connecting devices to this input. The internal signal path is interrupted when a

cable is connected to the POWER AMP IN jack.

DIRECT OUT GROUND LIFT Switch - When pressed in (the "LIFT" position), pin 1 is removed

from the chassis. This should be used only when a ground loop hum or buzz is heard.

Otherwise, leave it in the out ("GROUND") position.

DIRECT OUT Jack - Use this electronically balanced XLR jack to route signal from the TX300

to a professional mixing console, as a tap to a main PA system via a mic input on the console,

or to an external amplifier. The DIRECT OUT signal is pre EQ, meaning that the signal is taken

right after the input and is unaffected by the onboard EQ.

SPEAKER OUTPUT - Use these outputs to connect speakers to the amplifier output. The

amplifier provides both 1/4" and twist-and-lock output connectors, wired in parallel. It is

recommended to use the twist-and-lock jack whenever possible. The total impedance of the

speakers connected to all of the jacks must not be less than 4Ω.

Fan - The variable speed fan provides vital cooling to the amplifier. Make sure that it is kept

free of all obstructions and that cool, fresh air is accessible at all times.

AC input V- Connect the supplied standard 3-pin "IEC" plug here.

AC Voltage selection switch - This switch is used to set the operation voltage. Be sure to check

that the switch is set correctly for your country.

Fuse sled - This contains a fuse holder for the amplifier. Make sure the voltage rating is

correctly set before powering up the amplifier.

10. POWER Switch - Use this to power the TX300 on or off. The switch lights whenever the

amplifier is powered on.

TX300 - 300 Watt Bass Amplifier

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