note: The PX700DLX & PX900DLX master sections are exactly the same.

22,27. GRAPHIC EQ’S: These seven band graphic equalizers allow customization and shaping of the output signals to match room acoustics and enhance the sound. Use the selector switch (#25) to determine where the equalization will be applied: either to the main and monitor output signals, or to the main 1 and main 2 output signals.

23,28. LED METERS/LIMITER INDICATORS: These LED meters monitor the output signal levels for either the main and monitor output signals, or the main 1 and main 2 output signals (dependent on the setting of the selector switch, #25). The red LED’s illuminate when the internal limiter is engaged to prevent the signal from being clipped. (Clipping results in overdrive distortion and should be avoided.) If the limiter LED’s flash continuously or remain on constantly during use, reduce the output signal levels until they flash only on strong signal peaks.

24,29. EFFECTS RETURNS: Use these controls to adjust the magnitude of the effects applied to the output signals. Use the selector switch (#25) to determine where the effects will be applied: either to the main and monitor output signals, or to the main 1 and main 2 output signals.

25. MAIN/MONITOR / MAIN1/MAIN 2: Use this switch to select whether the graphic EQ’s, LED meters, and master level controls are assigned to the Main and Monitor outputs (switch in the out position) or to the Main 1 and Main 2 outputs (switch depressed. When this switch is in the out position, the Main/Main 1 graphic EQ (#27) controls the signal to power amp #1, the output of which is connected to the Main Output jack (#44). Also, the Monitor/Main 2 graphic EQ (#22) controls the signal to power amp #2, the output of which is connected to the Monitor Output jack (#43). When this switch is depressed, the Main/Main 1 graphic EQ (#27) controls the signal to power amp #1, the output of which is connected to the Main 1 Speaker Output jacks (#46). Also, the Monitor/Main 2 graphic EQ (#22) controls the signal to power amp #2, the output of which is connected to the Main 2 Speaker Output jacks (#46).

30. EFFECTS SEND: Use this control to set the overall signal level sent to the internal DSP or external effects (if used).

31. AUX IN: Use this control to set the input signal level of the aux in jack (#40).

32. TAPE IN: Use this control to set the input signal level of the tape in jacks (#41).

34. POWER LED: This LED illuminates when the mixer is on.

35. PHANTOM +48V: This switch, when depressed, applies +48 volts DC to pins 2 and 3 of each channel’s XLR input jacks. This allows use of microphones which require a source of phantom power for proper operation. (Mics not requiring phantom power will not be affected by the presence of the DC voltage.) The adjacent LED illuminates when the phantom power is on.

36. DSP SELECTORS: Use these switches to select the type of digital signal processing effect to be applied – vocal, large hall, and small hall are reverberation effects; delay is a digital delay effect.

37. DSP ON: Use this switch to activate the internal digital signal processor. When this switch is depressed, the selected DSP effect is activated.

38. EFFECTS SEND: Use this jack to send a signal to an external effects device. The signal level at this jack is set by the effects send control (#30).

39. FOOTSWITCH: Use this jack to connect a footswitch for remote on/off control of the DSP and external effects device. The footswitch must be a normally open, momentary type such as the Crate model #FSIU. The wiring for the footswitch is as shown:

40. AUX IN: Use this jack as the return jack when using an external effects device, or to feed another mixer’s signal into the PX700DLX/PX900DLX. This jack is post-input channel, pre-eq, and pre-power amp.

41. TAPE IN: Use these jacks to connect the outputs of a tape deck or CD player to the mixer. The playback signal level is set by the tape in level control (#32).

42. TAPE OUT: Use these jacks to connect the mixer to a tape recorder. These jacks are is post-eq, pre-master, and their signal level is determined by the channel level controls.

43. MONITOR OUT: Use this jack to send a line level, monitor mix signal to the power amplifier you are using for your monitor speakers.

44. MAIN OUT: Use this jack to send a line level, main mix signal to an external power amplifier (if used), a recording console, or to the aux in jack of another PX700DLX/PX900DLX.

The Rear Panel

45. POWER AMP SWITCH: Use this switch to set the amplifier for mono bridged operation (switch to the left) or for main/monitor operation (switch to the right).

46. MAIN 1/MAIN 2 SPEAKERS: Use these jacks to connect the mixer to your PA speakers, only when the power amp switch (#45) is set to the main/monitor position. Observe the 4 ohm minimum load rating and all other speaker information printed on the rear of the mixer.

47. BRIDGE SPEAKER: Use this jack to connect the mixer to your PA speakers, only when the power amp switch (#45) is set to the bridge position. Observe the 8 ohm minimum load rating and all other speaker information printed on the rear of the mixer.

48. AC LINE CORD (not shown): Connect this cord to a suitable source of AC power, as indicated to the right of the cable. DO NOT ATTEMPT TO BYPASS THE GROUND CONNECTION OF THIS POWER CABLE!

49. POWER SWITCH (not shown): Use this switch to apply AC voltage to the mixer. The mixer is on when the switch is depressed, off when the switch is in the out position.