Powered Mixers

SPX613 & SPX815

21.STEREO MIX - MAIN / MONITOR Switch: As described in #19, the position of this switch determines whether the mixer is used in STEREO mode (the up position) or as a mono mixer with a separate monitor output fed by the channel MONITOR mix (the down position).

22.MAIN MASTER Level: This control adjusts the overall stereo Main Left and Right volume to the MAIN OUT jacks (on the front of the mixer) and the speaker outputs (on the rear of the mixer).

23.MONITOR MASTER Level: This control adjusts the overall MONITOR output volume to the MONITOR OUT jack (on the front of the mixer) and the LEFT/MONITOR speaker outputs (on the rear of the mixer) when the MAIN / MONITOR switch (#21) is engaged.

24.PHANTOM +48V Switch: When engaged, this switch provides +48 Volts DC to each microphone input jack to allow for the use of condenser microphones.

25.MUTE CHANNEL 1-7 Switch (SPX 613) / MUTE CHANNEL 1-9 Switch (SPX 815):

When engaged, this switch will mute channels 1-7 on the SPX613 and channels 1-9 on the SPX815.

26.LED Bar-Graph Meter: These dual, 5 segment bar-graph LED meters indicate the output signal levels of the mixer in all output modes.

27.LIMITER LED Indicators: These dual LED indicators illuminate when the built in limiting circuit is activated. The limiter automatically engages to prevent signal clipping (distortion) of the

output signal of the mixer.

28. EFFECT SEND / RETURN Jacks: The EFFECTS SEND jack is an unbalanced 1/4 Tip / Sleeve (TS) jack that allows for the connection to the input of an external effects processing unit (such as a reverb or delay or multi-effects processor). The signal for this jack is derived from the internal EFX buss and is controlled by the EFX MASTER volume control. The EFFECTS RETURN jack provides an input to the mixer from the output of an external effects processor.

29. EFFECT FOOT SW: This jack provides a method of remotely switching the internal digital effects unit on and off with a footswitch.

30. RECORD OUT: These dual RCA phono jacks provide the pre-graphic EQ signal, controlled by

the MAIN MASTER volume control. A stereo recording device can be connected to these jacks.

31. L/MONITOR OUT R/MAIN OUT: These dual unbalanced 1/4 jacks provide a post graphic EQ signal from the Main mix buss. It is controlled by the MAIN MASTER volume control. This output can be used to connect to additional external amplifiers or recording devices.

32. MONITOR OUT: This unbalanced 1/4 jack provides a mix from the channel MON buss for connection to an external stage monitor amplifier. The signal is pre-graphic EQ and controlled by the MONITOR MASTER volume control.

33. POWER AMP IN: These dual 1/4 unbalanced Tip/Sleeve (TS) jacks allows for the connection of an external stereo line level signal to the internal amplifier of the SPX613

SPX 815. This input can be used for connection of the line level outputs of an additional mixer.

34. A/C INPUT: Plug the appropriate A/C power cord to this connector. WARNING: DO NOT ATTEMPT TO BYPASS THE GROUND CONNECTION OF THE POWER CORD.

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WHARFEDALE PRO SPX613 / SPX815 OWNER S MANUAL