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Operation

6

10. Readjust Main Level Control

The main level control is the final level control

for the system's main output whether you are

using internal or external power amplification and

controls the amount of power applied to your

speakers. If you are happy with the general

sound of your mix but require more general

volume. you should gradually increase the main

level control to achieve the desired volume level.

Only after you have set your individual channels

to approximately therr quarter volume should you

raise your main level control. You will find that

adding channel equalization and reverb can affect

the over-all volume. Keepthis in mind when

adjusting the channel and main volume. Keep

this in nmind when adjudting the channel and

main volume levels. Always make any changes

or adjustments in a sliw and gradual manner to

avoid feedback and very loud transients. Both

can damage your speaker systems, not to

mention your hearing.

11. Using Tape In

The tape input is suited to cassette decks, CD

players and devices with similar output lwvels.

The tape level control will serve as the only

control for this input as it goes directly into the

main mix. Note also that the Tape input may be

used as two additional inputs or "return".

11a. Adjust Tapee Level Control

With your poay back tape deck or CD connected

to your powered mixer, solwly raise the tape

level control until you reach optimum listening

levels.

11b. Adjust Tape In Pan Control

The source connected to the Tape in jacks may

be panned to the left or right buses, or any

intermediate position using the Tape In Pan

control.

11c. Adjust Tape to Monitor Level Control

The tape to monitor/aux 1 level control is

dependent on the tape level control. Adjustments

to the tape level control affect the level of your

tape or CD player sent to the aux 1 (monitor)

send. When using tape play back in the monitor

system, we recommend that you balance the tape

to monitor/aux 1 levels with yout other sources

while the main or house mix level is down. This

will help you to better determine optimum

monitoring levels.

12. Using Tape Out

The main level control will control the level of

signal sent to the tape out jack aoolwing you to

make a recording of the main mix. If you record

on the same machine you have connected to the

tape in jacks.

you must set the tape in level at 0. Failure to do

so will result in electronic feedback. The

resultant oscillation will ruin your recording.

F. MONITOR SYSTEM OPERATION

The whole purpose of a monitor system is to

provide a completely independent mix of your

input channels that can be sent to stage monitor

speakers. This is so that the performers can heat

what they ate dointg, Because of speaker

placement, program material and other factors, it

is rare that the monitor mix will be the same sa

the main or house mix. Your powered mixer has

the capability of using aux 1 as a completly

separate monitor mix that can be sent either to an

outside EQ / amplifier and speakers or this mix

can be sent to the internal EQ / amplifier.Of the

three

systems

discussed

during

serup

and

operation, system one does not provide for

monitors. For those that do, will now show you

how to use the monitor system. Since this mix is

separate from the house or main mix, there is no

need to have the main mix set to an audible level.

Therefore, all of these instructions ard based on

the premise that you will have the main level

control set to 0. All of your other mixer settings

should remain in place since we will be needing

them as soon as we have set up the monitor

system.

Note: Nomonitors are used in SYSTEM 1. If your

system requires monitors, please consider systems

similar to 2 or 3.

MONITOR OPERATION for System 2.

1. Adjust EXternal Monltor EQ

With the main level and aux 1 master send

controls set to 0, set the input level control on the

external graphic equalizer to about 60%. You will

need to re-check this setting later to be sure there

is no clipping or distortion.

2, Set External Power Amplifier

Set the input level control on the external power

amplifier to about 60%. You will need to re-check

this setting later to be sure there is no clipping or

distortion.

3. Adjust Master Aux 1 Control

Set the aux 1 master send control to 4. You will

likely have to re-adjust this later but for now, this

settin will allow you to heat your monitor system

and decide what further adjustments ate necessary.

4. Adjust Channel Monitor / Aux 1 Controls

Decide which channels you want to include in

your monitor mix. Ser a nominal level on each of

these channels using the monitor / aux 1 channel

level control. Slowiy raise the level on each

individual channel until the optimum volume is

achieved or, when using a microphone, solwoy

raise the level until you begin to heat feedback. If

you start to hear feedback you should quickly

reduce that channel control back to 0 or until the

feedback stops.

5. Adjust Channel Aux 1 Level Control

Carefully raise the level control again, stopping

before the point at which you experienced

feedback. If feedback persists, reduce levels to 0

and refer to section V1 Professional Operating

Tips of this manual.

6. Reset Aux 1 Master Control

Furth dajustment of the monitor system will be

necessary after you have 0properly set the graphic

equalizer.

When

you

have

completed

all

adjustments to the monitor system, you can

resume the setting of the main level control for

the house system.

Summary of Contents for VM 10SD Stereo

Page 1: ...Each channel incorporates a low impedance XLR input and a high impedance quarter inch phone jack input Separate pre monitor sends active high and low equalization and post reverb effect sends are also...

Page 2: ...outlet Do not defeat the safety purpose of the polarized plug 9 Grounding If the appliance is equipped with a 3 wire grounding type plug a plug having a third grounding pin this plug will only fit int...

Page 3: ...from defects in materials and workmanship under normal use for a period of 5 years from date of original purchase During that period STK will at its option repair or replace materials at no charge if...

Page 4: ...Panel Descriptions front panel...

Page 5: ...ate the midrange frequencies by as much 15 dB A distent is provided in the 0 position indicating a flat re sponse 8 Low The low frequency shelf control is set at 50Hz You can increase or attenuate fre...

Page 6: ...rovides final output level control for the monitor auxiliary send 1 found on the connector panel In Main Monitor mode it also serves as the volume control for the monitor internal amplifier 17 Tape In...

Page 7: ...outputs are taken before the built in graphic equalizer In Mono Main mode the Left connector gives the mono sun output from L R busses and the Right connector is not functional 36 FOOT SWITCH 38 TAPE...

Page 8: ...r reverb control to the internal reverberation circuit Its signal is derived from the individual channel reverb aux 2 sends The reverb can be defeated by turning this control to the far left or off po...

Page 9: ...ed Stereo Operation For this most basic stereo powered mono mixer operation you will need to commect 1 or more input source devices such as a microphone keyboard CD player or tape deck An outboard eff...

Page 10: ...rape or CD player into the mixer connect this now as well Connect a stereo RCA cable frim the output jacks of the tape or CD player to the tape in jacks on your powered mixer Additionally you may wis...

Page 11: ...e heavy gauge unshielded speaker cables Note that the total speaker impedance load must be at least 2 Ohms Insimple terms the this means you can use a maximum of four monitor speaker sustems with an i...

Page 12: ...u will prbably raise this to a higher setting at a later time after you have established proper gain and safe operating levels Use this as a starting point You are going to poerate the indivdual chann...

Page 13: ...peak input it is some what subjective as to whether an effect sounds proper it is largely a matter of taste However be using external devices See section V1 Professional Operating Tips for more inform...

Page 14: ...tage monitor speakers This is so that the performers can heat what they ate dointg Because of speaker placement program material and other factors it is rare that the monitor mix will be the same sa t...

Page 15: ...idual band by adjusting the slider on that band Any environment has its own set of acoustics even outdoors Some environments will reflect or absorb certain frequencies more than others Additionally mo...

Page 16: ...examples of signal to noise ratio are shown in figure 3 The first shows a pppr ratio In this case you would heat the noise to the point that it would certainly impede your enjoyment or the main signa...

Page 17: ...System Hookup diagram 1 POWERED MONO...

Page 18: ...System Hookup diagram 1 POWERED STEREO...

Page 19: ...Block diagram Stereo VM mixer...

Page 20: ...Block diagram Mono VM mixer...

Page 21: ...n 15 dB shelving 12 dB peaking 15 dB shelving High 12 kHz Mid 2 5 kHz Low 80 Hz High 12 kHz Mid 2 5 kHz Low 80 Hz Graphic Equalization 15 dB maximum boost or cut in each of stereo nine bands 63 125 25...

Page 22: ...level Connector in mixer Nominal Max before clip SPEAKER OUT MAIN MONITOR 0 08 ohm 4 ohms SP 300 W 300 W Phone Jack 8 ohms SP 200 w 200 w Phone Jack MAIN OUT L MONO R 150 ohm 600 ohms lines 4dB 1 23V...

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