SWR 750x Instrucciones De Funcionamiento página 18

2. An input for pre-recorded music, for playing along and practicing purposes. To accomplish this, insert
a CD player or other sound source into the Effects Receive jack. (It must be a MONO 1/4" plug that
goes into this input, so you'll have to use a stereo-to-mono cable adapter of some kind.) You can adjust
the level of recorded music versus the "live" sound of your instrument by using both the Effects Blend
control (the more clockwise the control, the more pre-recorded music signal you'll hear) and the volume
control of your CD (or other) audio source. The mixed sound will be heard through your speakers.
Besides pre-recorded music, this is also an excellent way to practice along with a drum machine.
Input impedance of the Effects Receive jack is 27k Ohms minimum.
Note: Inserting a plug into the Effects Receive jack activates the Effects Blend control. The control
receives this command through the ground created by the phone plug making contact with the
jack. The plug must be a mono plug (tip and ground). If you have a stereo plug only, it will be nec-
essary to tie the ring and the ground together.
Preamp Out
This jack provides another audio output, but it is located later in the signal chain than the Ef fects Send
jack. This signal is post-EQ AND post-effects loop, but still before (pre) the Master Volume control. You
should use this jack when using an effects device in the effects loop and wish to achieve:
1. A line level output for use in conjunction with an additional (slave) power amp—such as SWR's Power
750.
2. An unbalanced output suitable for recording or live mixing board purposes.
Effects Activator Footswitch Jacks
Your 750x comes equipped with the capability for hands-free control of the onboard Overdrive and
SubWave™ effects. To achieve this function, locate the dual footswitch included in your 750x packaging.
Connect the end with the two 1/4" color-coded phone plugs to the corresponding input jacks on the rear of
your 750x as follows:
Red = Overdrive
Blue = Subwave
Turn the effects on and off by stepping on the desired switch or switches. As you do so, the illuminated
switches above the Overdrive and Subwave™ controls on the front panel should alternate on and off, and
the chosen effect(s) should engage and disengage accordingly. (Just so you know, we left the footswitch
jacks independent of each other just in case you want to use your own separate footswitches and locate
them in different positions on your custom pedalboard.)
Note: The type of switches contained inside the footswitch chassis are both momentary, normally
open. Also, if you connect the footswitch to the unit while the unit is on, the effects may engage.
This is normal.
Cooling Fan & Fan Mode Switch
With the Fan On/Off switch in the "On" position, the internal cooling fan will run at slow speed when the
internal heatsink temperature is below 85 degrees C and at high speed when the temperature is above 85
degrees C. The Fan On/Off switch should be left in the "On" position for normal operation.
With the Fan On/Off switch in the "Off" position, the internal cooling fan will be off when the internal
heatsink temperature is below 85 degrees C and at high speed when the temperature is above 85
degrees C. SWR recommends that the "Off" position be used ONLY in situations where fan noise might
be audible and therefore problematic—such as when miking the internal speakers in a recording situation.
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