DSP Processors, EFF to Monitor Control, Power LED

18.TAPE JACKS CONT. The L-R TAPE OUT RCA jacks sends the MAIN signal (pre graphic EQ) for recording. If the TAPE OUT is being used to record, make sure the TAPE IN control is turned OFF to avoid feedback. The TAPE OUT jacks are another way to access the output of the mas- ter section if the INSERT jacks are being used.

19.DSP PROCESSORS

Two 24-Bit proces- sors provide a host of

great sounding

effects including Flange, Reverb, Echo,

&Chorus. The chan- nel EFF 1&2 send controls delivers the

19.DSP PROCESSORS CONT. D) FLANGE: SELECT the amount of speed with your flange (phasing effect). Now turn the PARAMETER control to increase the depth.

20.DSP PK 1, PK 2 LED’s

The DSP PEAK LED indicates that the signal level to the processor is too high. To prevent distortion, turn the EFF 1-2 control towards the center (off) position until the PEAK LED stops flashing.

21. EFF TO MONITOR CONTROL

The EFFECTS TO MONITOR level controls the amount of the effects that goes into your monitors.

22. TAPE IN LEVEL

You may use the TAPE IN level as another input into your mixer using the RCA TAPE IN jacks.

26.GRAPHIC EQUALIZER SWITCH

The EQ button will switch the EQ’s from LEFT-RIGHT to MONO/MONITOR. The “OUT” position puts both EQ’s in the L-RMAIN mix only. EQ1 is for the LEFT amp and EQ2 is for the RIGHT amp. The “IN” position will combine the L-Rmix into EQ1 as a mono mix. Then the monitor mix is routed through EQ2 for use with the MONITOR 3 amp to help control stage feedback.

27.ADJUSTING THE GRAPHIC EQUALIZER

When the EQ sliders are in their center position, they do not affect the audio signal. When EQ sliders are raised or low- ered from this position, they boost or cut respectively a nar- row frequency band. To reduce feedback in the low fre- quency range, try lowering one of the 63, 125 or 250 Hz sliders. High frequency feedback is reduced by lowering one of the 2k or 4k Hz sliders.

To help with feedback reduction, the main speaker should always be placed in front of the microphones.

For tone enhancement you may want to raise the 63, 125 (for

deeper	bass)		GRAPHIC EQ
and the 4, 8 and		63	125 250 500 1K 2K 4K 8K 15K
16k (for crisper		+12	12 +
16k (for crisper		8	8
highs)	forming	4	4
highs)	forming	0	0
a “smile” curve		4	4
a “smile” curve		8	8
as shown.		- 12	12 -

28.EFFECTS FOOT SWITCH JACK

The optional FS22 will remotely shut off EFFECTS 1 or 2.

29.PHANTOM POWER SWITCH AND LED

The PHANTOM power switch turns on the microphone phantom power in the channel XLR jacks. This power is used for supplying a voltage to condenser microphones. The LED indicates the phantom power is turned on. The phantom power will not damage conventional dynamic microphones. Note: Make sure the phantom power is switched off before connecting or disconnecting micro- phones to the mixer. It is recommended to allow 5 seconds for the phantom power to discharge before making any microphone connections.

REAR PANEL-POWER/SPEAKER CONNECTIONS

The rear panel contains the POWER SWITCH and AC power cable connection. For the PA800 and PA1200, there are 3 groups of 1/4” speaker jacks. Each group has two 1/4” out- puts (wired in parallel). AMPS 1 and 2 are for the LEFT and RIGHT speakers. AMP 3 is for the MONITOR speakers.

NOTE: 4Ω MIN IMPEDANCE PER AMPLIFIER (Maximum one 4Ω or two 8Ω speakers per amp). MAKE ALL SPEAKER

CONNECTIONS BEFORE TURNING THE MIXER ON .

signals to the dual processors. Note: Reduce these levels if the red PEAK LEDs are flashing on the processors.

Turn up the EFFECTS control to 5 on the processor(s) to add your effects, while at the same time adjust the SELECT and the PARAMETER controls to get the desired effect. Note: An audi- ble noise will be heard while adjusting the effects.

EFFECT PARAMETERS

Each of the four effects has a variable parameter that can be easily adjusted. Each “SELECT” & “PARAMETER” is described below.

A)ECHO: SELECT the amount of the regeneration (repeat- ing). Now select the PARAMETER control for the shortest or longest delay time between the original signal and the echo.

B)REVERB: SELECT the amount of presence (high frequen- cies) in the reverb. Now turn the PARAMETER control to pro- vide the minimum or maximum decay.

C)CHORUS: SELECT the amount of reverb with your chorus. Now turn the PARAMETER control to increase the depth.

23. AMP “CLIP” LED’s

The amp CLIP LEDs indicate when the power amps are starting to distort (clip). Reduce the MAIN 1-2 and/or MONITOR 3 master volumes to prevent distortion.

24. POWER LED

The Power LED indicates when the mixer is powered up.

25. PROTECT LED

The mixer will “protect”, engaging relays to mute the speak- ers if: a) impedance is below 4Ω on any amplifier b) short- ed speaker cables, or c) ventalation problems. If this LED comes on, shut the mixer “OFF” and check for cable prob- lems, proper impedance and obstructed rear cooling vents. If you encounter an over-heat problem, leave the mixer “ON” allowing the fan to cool down the internal compo- nents. The mixer will auto-reset. If a problem persists, please contact Carvin’s service dept. 800-854-2235.