APB-DynaSonics ProDesk-4 Owner'S Manual Download Page 32

APB-DynaSonics

32 

MONITOR / HEADPHONE CONTROL

ProDesk-4 is equipped with a comprehensive system to allow the operator to accurately monitor signals within the console.
Multiple sources can be selected and combined for listening, and the Solo system permits selected inputs and ouputs to be
monitored and metered. A common set of selection switches are used to choose the signal(s) for the Headphones and
Monitor. The Solo system interacts with the Monitor system and is described on the following page.

HP & Monitor Source Select switches (all selected sources mix together)

L-R:

When selected, this switch will route the L&R buses to the left and right stereo headphones and Monitor out.

Center:

When this switch is selected, it will route the Center bus equally into the left and right stereo headphones and Monitor out.

Mono/A6 Fader:

When this switch is selected, it will route the Mono bus or Aux-6 bus equally
into the left and right stereo headphones and Monitor out. The audio source
for this switch follows the Fader-Flip function; the bus being controlled by the
100mm fader will be selected for monitoring.

Aux 1-2 Switch:

When this switch is selected, it will route Aux 1 (to left) and Aux 2 (to right) as
stereo signals into the stereo headphones and Monitor out. This allows
monitoring these auxiliary outputs without using the solo system.

Pre Switch

When this switch is depressed, the pre-level signal for all sources is selected. This
allows monitoring to be independent of any local level controls. When this
button is Up, the post-level signals are used as the sources.

Sum Mono Switch

When this switch is depressed, the monitor out is summed to a mono signal.
When this button is Up, the sources maintain their stero images.

Headphone Level Control

This control adjusts the level being fed to the headphone system. All three
headphone jacks are fed from this control: one on the Master top panel (1/8”),
and two below the armrest (1/4” & 1/8”). All 3 jacks are wired in parallel.

Solo Off To Headphones switch (with Red LED)

A solo signal will normally override the default HP signal source. When this switch is depressed, it will prevent the solo signal
from overriding the selected default headphone signal. An LED will illuminate when this Solo Off switch is activated. This
switch can be used if a dedicated output is desired: Select the desired signals to mix together (press their source switches to
mix together), adjust the level. With the Solo-Off switch depressed, the headphone outputs will NOT be interrupted by the
solo system.

Monitor Level Control (and Ouput Jacks)

Connectors located 

On Master Interface Panel

This control adjusts the stereo level being fed to the Monitor Output
jacks on the rear on the console.

Left, Right and Sum-Mono TRS outputs are avilable on the Master
Interface Panel (shown here).

Impedance-Balanced 1/4” output jacks are provided for Left and
Right monitor outputs. An additional 1/4” Impedance-Balanced
output connector is provided which is a sum of the Left and Right
signals. This connector may be used as a summed-mono output
to feed a sub-woofer system or to drive a mono wedge monitor
system when the console is used as a monitor console.

Solo Off To Monitors switch (with Red LED)

This switch prevents the Solo system from interrupting the default feed to the Monitor outputs. Operation and purpose is the
same as the Solo-Off switch for the Headphones.

Summary of Contents for ProDesk-4

Page 1: ...ProDesk 4 OWNER S MANUAL APB DynaSonics Inc 20 West End Road Totowa New Jersey 07512 U S A Tel 973 785 1101 Fax 973 785 1105 Web www apb dynasonics com...

Page 2: ...APB DynaSonics 2...

Page 3: ...duce heat 10 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other a grounding type plug has two blades and a third gro...

Page 4: ...NDS 20 STEREO LINE INPUT MUTE SOLO AND LEVEL CONTROL 21 STEREO LINE INPUT BUS ASSIGNMENT AND BALANCE 22 STEREO LINE INPUT REAR PANEL CONNECTORS 23 MASTER SECTION 24 AUXILIARY BUSES 1THRU 6 24 GROUP OU...

Page 5: ...TEXT THAT FOLLOWS AND HAVE THE FOLLOWING MEANINGS TO AVOID ELECTRIC SHOCK FOLLOW THE INSTRUCTION NEXT TO THIS SYMBOL TO AVOID AN UNSAFE CONDITION FOLLOW THE INSTRUCTION NEXT TO THIS SYMBOL PSU A PSU...

Page 6: ...openings must not be covered while the system is on Low noise internal fans provide air movement OPERATION Turn on each power supply using the rocker switch on the PS panel Normal operation is signale...

Page 7: ...EMENT OF POWER SUPPLY UNITS 1 Disconnect the AC power cord 2 Remove four screws that secure the PS unit in the console chassis marked with the symbol in the diagram Pull on the power supply handle and...

Page 8: ...d unsafe internal temperature Approvals USA Recognized power supply with ETL marking and listing USA and Canada UL60065 7th Edition Electrical Safety Europe EN60065 7th Edition Electrical Safety Europ...

Page 9: ...y questions or comments about this APB DynaSonics product please do not hesitate to contact us at Tel 973 785 1101 Fax 973 785 1105 e mail info apb dynasonics com Manual Scope This manual is not inten...

Page 10: ......

Page 11: ...ll step to next mode LED will change color If MODE switch is not re pressed when LED is still illuminated meter status remains in its current mode STATUS LED Additional Function If Mute All is activat...

Page 12: ...ted XLR or 1 4 Polarity Reverse Switch When depressed reverses the electrical input polarity of any microphone or line level input signal Use of this control may alter the sound quality of an input re...

Page 13: ...gh mid frequency band EQ between 400Hz and 8kHz The bandwidth is approximately one octave High Mid Level Control Adjust the high mid band boost cut between 15dB there is a detent at the center 0 posit...

Page 14: ...the Aux Pre Source select switch above Aux 1 2 Stereo Switch Reconfigures the individual Aux 1 and 2 controls from two level controls to a Pan control 1 and a Level control 2 This enables a stereo mi...

Page 15: ...e sample points in the channel s signal path approach within 3dB of clipping Please Note The overall channel meter should be considered as 2 separate monitoring indicators the Green and Yellow LEDs ar...

Page 16: ...ems this bus can be used as the primary output leaving the L R output available for stereo recording It is usually used in LCR installations to feed a discrete signal to the center speaker It may also...

Page 17: ...d has an output impedance of 100 unbalanced and the insert return has an input impedance of 5k unbalanced Operating level is 4dBu NOTE The user should ensure that any device inserted into the channel...

Page 18: ...Pre Aux Feed Aux Send Blend Control When the Split Track mode switch is pressed the Pre Aux Feed control will be active This control allows the operator to adjust the mono mixture of the left right in...

Page 19: ...y Level Control Bell shape Adjusts the high mid frequency bell shaped cut boost between 15dB Use of this EQ control will affect both the left and right signal paths The Low Mid EQ has a center frequen...

Page 20: ...If Split Track is active both of the sends receive the same mono mix from the either the Pre fader Blend control when in Post or the Pre Aux Feed control when in Pre Aux Level Control 3 Adjusts the le...

Page 21: ...luminate without first having the Yellow LED lit This usually will be caused by excessive preamp levels and a subsequent cut in the EQ or there may be a compressor or limiter in the channel s insert p...

Page 22: ...nt Switch Assigns the post fader summed channel signal to the Center mix bus In mono sound systems this bus can be used as the primary Center output leaving the L R output available for stereo recordi...

Page 23: ...w signal into the Right side of the channel Left And Right RCA Input Connectors Provides for unbalanced line level inputs to the channel s left and right inputs Design level is 10dBV Input impedance i...

Page 24: ...the monitoring and meter system in mono both L R sides of the solo system are fed When both Aux 1 Aux 2 AFL buttons are pressed Aux 1 will feed the left solo bus while Aux 2 will feed the right solo...

Page 25: ...gnal levels on the associated Group mix bus Varying intensity Green indicates proper bus levels while red indicates approaching overload within the Group circuitry Overload is sensed after the mix amp...

Page 26: ...associated Left Right Center and Mono signals being fed into the associated matrix system A single switch in the Main output section above the Center fader determines if these signals are derived pre...

Page 27: ...fader feed Fader Flip Swap Mono Aux 6 controls This function is described earlier and in more detail in the Aux Master section The 3 controls and indicators for the Mono bus bi color sig LED 100mm fa...

Page 28: ...ssing or effects electronics can be inserted into the bus signal path after the summing amp Examples of external devices include additional equalization notch filters compressors limiters etc The iner...

Page 29: ...more information about the USB features on the ProDesk Stereo EQ High Low Freq EQ is available to adjust the tonal balance of the selected mixed input sources Both controls have a shelving response Hi...

Page 30: ...des M The Main Mono bus Mono bus feeds both left right sides Mtx 1 2 Matrix bus 1 2 Matrix 1 feeds left side Matrix 2 feeds right side Aux 1 2 Aux bus 1 2 Aux 1 feeds left side Aux 2 feeds right side...

Page 31: ...n and communication Burr Brown PCM2900 A USB B Type connector is provided The USB Audio Out to the computer can be driven from the same audio signals feeding the Stereo Record Out the top panel USB On...

Page 32: ...en this switch is depressed the monitor out is summed to a mono signal When this button is Up the sources maintain their stero images Headphone Level Control This control adjusts the level being fed t...

Page 33: ...ph faster attack Ave Peak Combination of both When both are active Peak shows as a single LED above an Averaging bargraph The same decay time is used for both to allow the Peak LED to always be visibl...

Page 34: ...tor to the selected buses TB On Master Talkback Switch internally illuminated This is a smart switch that will act as either a momentary or latching switch depending on how it is pressed Momentary Pre...

Page 35: ...ith a single external command This feature can be used when the PA system is required to be silenced during safety announcements or if a system wide mute is needed for any reason The 2 pin Phoenix con...

Page 36: ...re accessed by removing the Master Interface Panel to gain access to and adjust the position of the 4 removable jumpers Remove the 4 corner screws Philips head and pull the complete Interface assembly...

Page 37: ...r Inp Inp Mstr Inp Inp Inp Inp Inp Mstr Inp Inp Inp Inp Inp Mstr Inp Inp Inp Length L2 Inch mm 30 72in 780 3mm 38 82in 986 1mm 46 92in 1191 8mm 55 02in 1397 5mm 63 12in 1603 3mm Weight lbs kg 90 41 10...

Page 38: ...dB Channel Routing 80dB Channel Pan Isolation 80dB Channel to Channel Isolation 90dB Aux Send Attenuation 90dB Aux Pan Isolation 70dB Input Output Impedances Channel XLR Input 3K Balanced with or with...

Page 39: ...ProDesk 4 OWNER S MANUAL 39...

Page 40: ...APB DynaSonics ProDesk 4 Owners Manual Rev 0 91 July 2009...

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