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Инструкция по эксплуатации Marshall Amplification, модель PA400

Производитель: Marshall Amplification
Размер: 301.08 kb
Название файла: ea2d0440-d868-9f24-c9fb-9b89d80723a8.pdf
Язык инструкции:en
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Фрагмент инструкции

Low impedance XLR input -For the connection of low impedance microphones. 2. High impedance Jack input -For the connection of high impedance microphones. Also suitable for acoustic instruments with transducer type pick-ups. 3-5. Bass, Middle and Treble EQ controls- A wide range of tonal adjustment can be selected using combinations of these controls. 6. Monitor level -Provides the volume level adjustment from the channel to the monitor section. 7. Effects Level -Provides level adjustment of the signal from the channel to effects units linked through the master effects loop. 8. Reverb Level -Allows the level of the built in reverb to be adjusted on the channel. 9. Volume control -This allows the individual volume level of the channel to be adjusted. Channel 7 (tape channel). 10. Tape inputs -Phono (RCA) sockets to accept the signal from tape or CD players. 11. Tape outputs -Phono (RCA) sockets to provide connection out to cassette or other recording equipment. 12. Recording level control -Provides level control of the output to external recording equipment. 13- 14. Bass and Treble EQ controls -A wide range of tonal adjustment can be selected using combinations of these controls. 15. Monitor control -Controls the level of the tape signal to the monitor output. 16. Volume control -Provides level control of the tape channel output. 8 9 1 2 3 4 5 6 7 16 15 17 18192021222324 14 13 12 11 10 25 26 27 28 29 30 31 Master Section. 17. 9 Band Graphic Equalizer -Provides master EQ control across the audio spectrum. This feature is particularly useful for "shaping" the sound to achieve peak performance in rooms of different size and texture. Adjustment of -12 to +12 dB is provided at 63Hz, 125Hz, 250 Hz, 500 Hz, 1 K Hz, 2 K Hz, 4 K Hz, 8 K Hz and 16 K Hz. The slider tips are loaded with an LED to provide the display of graphic "shapes", even on darkened stages. 18. Master Volume control -Controls the overall volume level of the amplifier. 19. Master Reverb control -Provides the overall level control of the reverb. 20. Effects Return control -Controls the level of the signal returning to the PA-400 from external effects processors which would be linked through effects loop sockets (26 & 27). 21. Effects Send control -Controls the level of the signal from the PA-400 to the input of external effects processors. 22. Monitor output control -Controls the level of the output from monitor socket (25) to drive a separate monitor power amp. 23. Effects to Monitor control -Provides level adjustment of the effects return into the monitor mix. 24. Reverb to Monitor control -Provides level adjustment of the reverb into the monitor mix. 25. Monitor output -Jack socket for connection to power amplifier driving the monitor system. 26. Effects Send -Jack socket for connection to the input of external effects processors. 27. Effects Return -Jack socket which accepts the signal from the output of external effects processors. 28. Footswitch socket -For connection of a two way (FS02) switch for reverb on/off and effects loop in/out. If a single footswitch is used, the reverb only will be switched. 29. Pre-amp output -Provides a signal directly out from the pre-amp (also mutes the power amp) allows external processing of signal which can then be returned to Power Amp in socket (30). 30. Power Amp input -Provides a direct input to the power amp stage of the PA-400. Also acts as the effects return for series connected processors linked via socket (29). 31. Slave output -Sends out an overall signal from the mixer section, suitable for driving extra power amps, if the system needs to be extended. PA400 REAR PANEL Rear Panel Features. 32. Mains switch -Mains on/off switch 33. Mains Input-Socket to accept the mains power lead supplied. (note: please ensure that correct wiring practices have been observed before use). 34-35. Loudspeaker outputs - Jack sockets for the connection of loudspeaker systems. The power output is 400 Watts into 2 Ohms. Under no circumstances should a total loudspeaker load of less than 2 Ohms be connected. 32 33 34 SPECIFICATIONS Channels 1-6 Low impedance 3 pin XLR balanced input. Sensitivity -50dBm. Input impedance 10K .. High impedance 2 pole jack unbalanced input. Sensitivity -30dBm. Input impedance 1 M .. Bass control +/- 12dB @ 100 Hz. Middle control +/- 12dB @ 600 Hz. Treble control +/- 12dB @ 10KHz. Channel 7 (tape channel). Input impedance 33K .. Input sensitivity -20dBm. Bass control +/- 12dB @ 100Hz. Treble control +/- 12dB @ 10 KHz. Output level 0 dBm. Output impedance 500 .. Master section Graphic equalizer 9 band giving +/- 12dB @ centre frequencies of 63Hz, 125Hz, 250Hz. 500Hz, 1KHz, 2KHz, 4KHz, 8KHz and16KHz. Effects output level 0dBm nominal. Effects output impedance 500 .. Effects input sensitivity impedance -10dBm. Effects input impedance 10K .. Monitor output level 0dBm nominal. Monitor output impedance 500 .. Pre-amp/slave output level 0dBm nominal. Pre-amp/slave output 500 .. Power Amplifier MOSFET power...

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