Rear Control Panel |
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1 |
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2 | 3 | 4 |
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1)IMPEDANCE SELECTOR This switch is used to select the appropri- ate impedance and is important in achieving the desired results from the Double Cross. The correct impedance should be selected using the Impedance Selector switch as in the following impedance settings chart. Note: Incorrectly “mismatching” the amp head to a speaker cabinet should not damage the amplifier, but would result in lower output power and could result in shorter output tube life. Also, the Double Cross should never be operated without a speaker plugged into a speaker jack, even when using the Direct Out.
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2)SPEAKER OUTPUTS These paralleled
3)GROUND LIFT This switch is used to eliminate a “ground loop” hum when using the Direct Out. A ground loop can ex- ist when the Double Cross and the mixer it is plugged into are connected to grounded outlets that are in physically different locations and/or on different circuits, and should only be used if there is an audible hum. Pressing the ground lift does not dis- connect the ground connection from the amp’s chassis.
4)DIRECT OUT The XLR Direct Out is designed to connect the Double Cross to a recording or live mixer. The output is speaker- emulated to generate the tone of a Celestion Vintage