Fender Super-Sonic 100 Head and Twin Combo Owners Manual - Page 7

Rear Panel ON TYPE: PR 903 INPUT POWER V Hz 325W FUSE 4A L 250V OFF POWER STANDBY ARENA CLUB MIN MAX SEND LEVEL SEND RETURN MIN MAX RETURN LEVEL PRE AMP OUT POWER AMP IN FOOT SWITCH WARM ADJUST NORMAL COOL AUTOMATIC BIAS 2A 1A 1B 2B OUTPUT TUBE STATUS PATENT PENDING NORMAL LOOSE TIGHT SERIAL NUMBER PARALLEL SPEAKER OUTPUTS 4Ω min TOTAL 100W 4Ω 8Ω 16Ω DAMPING CONTROL IMPEDANCE MAIN EXTERNAL SPEAKER SPEAKER M. POWER - Switches the unit on-off. ♫ You can extend the life of the amplifier tubes by keeping the STANDBY {N} switch down for 60 seconds when you first switch on the power. N. STANDBY - In standby, the amplifier outputs are disabled while power is supplied to the tube filaments only, keeping them warm and ready to play. ♫ Use STANDBY instead of switching the power off during short breaks to extend tube life span and to avoid the tube warm-up delay upon returning to play the amp. O. IEC POWER INPUT SOCKET - Connect to a grounded outlet using the supplied power cord in accordance with the voltage and frequency specifications shown on the rear panel of your amplifier. P. FUSE - Protects the amplifier from electrical faults. Only replace a blown fuse with the type and rating specified on the rear panel of your amplifier. Q. ARENA / CLUB - Select ARENA for maximum power output (100W) when playing larger venues. Select CLUB for lower power output (25W) when playing smaller venues or recording. ! It is recommended that you change the position of the ARENA/CLUB switch only when the amplifier is OFF or in STANDBY to reduce stress on the tubes and to extend tube life span. R. SEND LEVEL - Adjusts the output level of the SEND {S} jack. Use to accommodate the input sensitivity of your external effects device. S. SEND / RETURN - These effects loop jacks have been tested and found compatible with instrument-level stomp boxes and line-level effects processors. Connect SEND to your effects device input and RETURN to the effects output. To set the Effect Loop "Unity Gain Level" (so the effects loop volume level equals the volume with the effects loop disabled): 1. Start with the SEND LEVEL {R} at maximum and the RETURN LEVEL {T} at minimum. 2. If any distortion is noted with the effects processor, reduce the SEND LEVEL (and/or the processor's input level control) until the distortion is no longer present). 3. Then increase the RETURN LEVEL (and/or the processor's output level control) so the effects loop output is at unity gain (or to your preference). ♫ The Effects Loop button on the footswitch can be configured as a switchable lead volume boost without effects by simply connecting SEND to RETURN with an instrument cable. The effects loop will provide an additional 12dB gain when both SEND LEVEL {R} and RETURN LEVEL {T} are set to maximum. Lower the RETURN LEVEL for less boost if preferred. T. RETURN LEVEL - Adjusts the RETURN {S} jack input level going into the power amp. Use to match the volume level of the amp when effects are off, or to set an alternate volume level selectable from the footswitch. U. PRE AMP OUT - An unbalanced, line-level output (includes Reverb). V. POWER AMP IN - A direct input to the power amplifier. The preamp circuit is automatically disconnected when a plug is inserted into this jack. W. FOOTSWITCH - Connect the included 4-button footswitch to enable remote selection of: Amp Voicing {C}, Channel {F}, Reverb and FX Loop Bypass. NOTE: The front panel push buttons are disabled when the footswitch is connected. X. AUTOMATIC BIAS - Select the desired tube bias temperature (WARM/NORMAL/COOL) using the up and down arrows, after the amplifier has warmed up (at least one minute). The amplifier will remember your last setting the next time you switch the unit on. NOTE: Press the up and down arrows simultaneously for one second to restore factory automatic bias settings. The OUTPUT TUBE STATUS indicator LEDs will display the following information depending on the status of each tube: LEDs scan left The amplifier is warming up (takes approximately 1 to right: minute). LED is solid The tube is OK and the bias matches the selected bias green: temperature (WARM/NORMAL/COOL). LED is blinking green: The tube bias does not match the selected bias temperature. This may happen for individual tubes from time to time while the automatic bias system is adjusting the bias. It usually will take less than 20 seconds to reach to the target bias and for the LED to go back to solid green. If the LED continues to blink after 5 minutes, its bias setting is beyond the range of the automatic bias and this tube should be replaced. LED is red: The tube has failed or is missing. LED is orange: The tube has shutdown. A tube may shutdown when the other tube in the pair (1A/1B) or (2A/2B) is bad or missing. Y. DAMPING CONTROL - Use to select a "looser" or "tighter" response from the speakers. Damping is the interaction of the tube power amp with the speakers. Z. IMPEDANCE SELECTOR - Select the speaker output impedance that matches the total impedance load of the speaker configuration you have chosen from the table below {AA}. AA. MAIN SPEAKER / EXTERNAL SPEAKER - ! A speaker must ALWAYS be connected to the MAIN SPEAKER jack when the amplifier is ON or damage may occur to the unit. Switch the amplifier OFF or to STANDBY while changing speaker connections or impedance settings. Connect speaker enclosures and set the IMPEDANCE SELECTOR {Z} according to the table below. MAIN EXTERNAL SPEAKER SPEAKER 16Ω + None = 16Ω + 16Ω = 8Ω + None = 8Ω + 8Ω = 4Ω + None = IMPEDANCE SELECTOR 16Ω 8Ω 8Ω 4Ω 4Ω f e n d e r. c o m 7