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Instructions Ampeg, Modèle HERITAGE SVT-CL

Fabricant : Ampeg
Taille : 1.35 mb
Nom Fichier : HeritageSVTCL_OM.pdf
Langue d'enseignement: en
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Facilité d'utilisation


The midrange frequency output is flat at the center position. Rotate the control counter-clockwise for a “contoured” sound (more distant, less midrange output) or clockwise for a sound which really cuts through. 9 10 1112 13 8. FREQUENCY: This control allows you to select the center frequency for the midrange control, giving you a choice of five “voices” for the midrange. The numbers correspond to the following center frequencies: 1=220 Hz, 2=450 Hz, 3=800 Hz, 4=1.6 kHz, 5=3 kHz. 9. TREBLE: Use this to adjust the high frequency level of the amplifier. This provides up to 15 dB of boost, or 20 dB of cut at 4 kHz. The high frequency output is flat at the center position. 10. MASTER: Use this to control the overall output level. It affects the speaker outputs and the preamp output. Use it wisely, and turn it down when making connections or trying something new. 11. STANDBY/POWER/FAULT INDICATOR LED: This is a multi-function LED. In Standby mode, it glows red. In the On mode (when the high voltage comes on) it glows green. If it does not turn green in the On mode, there is no high voltage present and the unit needs to be serviced. If the amp detects a fault in the power tube circuit, the high voltage is turned off and the LED flashes between red and green. This usually indicates a bad power tube. The amp will remain in this condition until the unit is turned off. Heritage SVT-CL Bass Guitar Amplifier The Front Panel continued 1 2 3 4 hi lo ultra hi / lo 5 master standby standby/ power/ fault powertreblefrequencymidrangebassgain-15dB0dB 13121110987654321 12. STANDBY SWITCH: Use this switch to turn the standby power on or off. Press the top of the switch to turn the standby on. The Standby mode allows the tubes to warm or remain warm without high voltage being applied to them. This extends tube life. This switch should be OFF when first turning the amplifier on. Allow the unit to warm up for at least 20 seconds before switching to the ON position. During short periods of non-use, the amp should be put into Standby mode. The Rear Panel 14. IEC POWER INPUT CONNECTOR: This is where you connect the supplied AC power cord. Plug the male end of the cord into a grounded AC outlet. DO NOT DEFEAT THE GROUND PRONG OF THE AC PLUG! 13. POWER SWITCH: Use this switch to turn the overall system power on or off. Press the top of the switch to turn on the power. The power switch should be engaged prior to the standby switch (as mentioned to the left, #12). This switch must be turned off to reset the amp after a Fault condition. 15. FUSE: This protects the unit from damage due to overload conditions or power line surges. If the fuse blows, replace it only with the same size and type. 14151617181920212223 Heritage SVT-CL Bass Guitar Amplifier 7 The Rear Panel continued 16. POLARITY: Place this switch in the position that provides the least electrical buzz from the unit. 17. BIAS SECTION: These two controls and sets of LEDs allow the user to properly bias the power amp. See “Setting Tube Bias” on page 9 for a complete description of how to use this section. 18. SLAVE OUT: This jack receives the same signal that is being sent to the power amp. It is useful for powering another amp (slave) from this unit’s preamp. 19. BALANCED OUT: This XLR jack is the output at the power amp in. Thus, it will include any processing done in the Preamp Out/Power Amp In loop. This signal may be used to feed an external power amplifier, mixing console or house PA system. 20. POWER AMP IN: This jack connects directly to the internal power amp for use with an external preamp. When using an external source, connect the OUTPUT of the source to this jack using a shielded instrument cable to feed the signal into the power amp section. The internal signal is disconnected when a plug is inserted into this jack. 21. PREAMP OUT: This jack is a direct post master preamp output for use with an external power amp. Connect the external amp’s input to this jack using a shielded instrument cable. 22. IMPEDANCE SELECTOR: Use this switch to match the output impedance of the amp to the speaker(s) being used (2 or 4 ohms). For help in deciding the total impedance of your system, consult the chart below. 23. SPEAKER OUTPUTS: Two 1/4” output jacks and one Speakon® output jack supply speaker-level power to the cabinet. The rated power output is 300 watts rms into 2 or 4 ohms. The two identical outputs are wired in parallel, and you can use either one, or use both. Make sure the total speaker impedance load is 2 ohms or greater. Use speaker cables with Speakon® or 1/4" TS ends to make the connections. Do not use instrument cables as they may overheat. NOTE: In some areas, 1/4” speaker jacks are not appropriate for use on amplifiers with high output power levels. For this reason, use the Speakon® jack instead. 14 15 16 17 18 19 20 21 22 23 Cabinet Number of Total Impedance Cabinets Impedance 2 ohms 1 2 ohms 4 ohms 1 4 ohms 4 ohms 2 2 ohms 8 ohms 2 4 ohms 8 ohms 4 2 ohms Heritage...


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