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Resumen del manual
The Contour EQ curve offers high frequency enhancement to complement the clarity and attack of your instrument. Experiment with this switch position to find the voicing that best complements your desired tone. LINE OUT 14. LOW Z BALANCED OUTPUT Provides an electronically balanced, low impedance signal source for use with external equipment. Though this source can be used to trigger lights or go to an effects rack, its designed function is to provide a direct balanced signal to the Low Z inputs of a mixer (thereby eliminating the need for a “direct box”. This eliminates the need for external direct boxes. 15. GROUND LIFT SWITCH Place this switch in the “GND LIFT” (in) position to lift the ground on the Low Z Balanced Output (14). This is used to prevent hum when connecting the output to external equipment. 16. POST EQ/PRE EQ This switch changes the position of the Low Z Balanced Output (14) in the signal chain. As indicated, placing this switch in the POST EQ (in) position allows the equalized signal to be sent out of the Low Z Balanced Output. EQUALIZATION 17. HIGH An active tone control (shelving type, ±15 dB) that varies the high frequency boost or cut. 18. LOW An active tone control (shelving type, ±15 dB) that varies the low frequency boost or cut. 19. GRAPHIC IN/OUT SWITCH The “in” position of this switch routes the instrument signal through the seven-band equalizer. The “out” position removes the graphic equalizer from the signal path. 20. GRAPHIC EQUALIZER This seven-band, graphic equalizer provides 15 dB of boost or cut at each center frequency. EFXLOOP 21. SEND/RETURN This is a low-level (0.3 V RMS) post-EQ effects patch. To patch an effects unit, connect the SEND jack to the input of the effects unit. Next, connect the output of the effects unit to the RETURN jack. Remember to always use high-quality shielded cables for these connections. 22. REMOTE SWITCH JACK A single switch footswitch (mono 1/4" plug) can be used to switch the effects loop off and on. The recommended footswitch for this application is the Peavey model # 00051000. CROSSOVER 23. FREQUENCY The Frequency control varies the crossover frequency from 100 Hz to 1 kHz. Set this control to the desired crossover frequency, keeping in mind manufacturer’s recommendations for the speakers being used. To set up the COMBO 115 for biamp operation, a separate amplifier and speaker cabinet will be necessary. Biamp Example: Connect the HIGH output of the crossover to the PWR AMP IN of the COMBO 115. Next, connect the LOW output of the crossover to the input of an external power amplifier. Connect the speaker output of the external power amplifier to a separate speaker enclosure. Set the crossover frequency to suit your taste, keeping in mind the manufacturer’s recommendations for the equipment being used. 24. LOW OUT This mono 1/4" jack provides an output for the low frequency signal produced by the internal crossover. The bandwidth of the signal present at this jack is determined by the Frequency (23) control. 25. HIGH OUT This mono 1/4" jack provides an output for the high frequency signal produced by the internal crossover. The bandwidth of the signal present at this jack is determined by the Frequency (23) control. MASTER 26. VOLUME Controls the overall volume level of the amplifier. The final level adjustment should be made with this control after the desired tone has been achieved. 27. PREAMP OUT/POWER AMP IN These mono 1/4" jacks are provided for in-line patching of effects units. To patch an effects unit, connect the PREAMP OUT jack to the input of the effects unit. Next, connect the output of the effects unit to the PWR AMP IN jack. The preamp output can also be used to route the amplified signal to a mixing console, tape recorder, etc. Connect the PREAMP OUT jack to the input of the console or tape recorder, etc. This will not affect the operation of the amplifier. Remember to always use high-quality shielded cables for these connections. 28. DDT™ SPEAKER PROTECTION SYSTEM SWITCH The COMBO 115 utilizes our DDT compression circuit to effectively eliminate the possibility of clipping (square wave) the power amplifier. The amplifier should be operated such that the DDT display is NOT lit constantly, but is lit intermittently. When the display is on all the time, this is an indication that the power amplifier is being driven excessively hard. To avoid this situation, either reduce the gain or reduce the EQ settings until the DDT display lights intermittently. To defeat the DDT speaker protection system, place the switch in the “DEFEAT” (down) position. The “status” LED lights “green” when the power is on and will only light “red” when DDT is active (when DDT switch is in the “in” position.) NOTE: It is highly recommended to utilize the DDT speaker protection system. COMBO® 115 SPECIFICATIONS SYSTEM SPECIFICATIONS: • Mains fuse = 8 amps • Mains voltage = 120 VAC 60 Hz • Power Consumption = 300 watts...