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To select a preset register push the DATA control to highlight the preset number
digits.  Turn the DATA control to increment the number to the desired register and
then push the DATA control again.  To store the preset turn the DATA control until the
word “Store:” is highlighted.  Next, push the DATA control.  This will highlight the word
“go” as well.  At this point turning the DATA control clockwise or counter-clockwise will
execute the store function.  The display will briefly display “

***

 Confirmed 

***

” and

then return to the Channel Mode.

NOTE:  A preamplifier will automatically store all of its current settings into a non-
volatile memory whenever power is removed.  When power is restored the
preamplifier will retrieve these settings.  This ensures that no settings are lost during
power line interruptions.

Preset Recall: 

Registers 1 through 99 are available for user storage and recall.

Register number 0 can not be over-written and contains a "null" set-up.  The "null"
setup sets all channels to the lowest gain setting, +48V off, phase reverse off and
deletes any channel groups.  Pre-set register 0 is helpful when setting up for a new
session.

Note: when you recall a preset from the front panel of a preamplifier you are recalling
from that preamplifier only.  If you recall a preset from the RCU a recall  command will
be sent to all of the preamplifiers in the system.

 On a preamplifier the recall menu will indicate:

*

Recall Preamp Preset

*

  

#:

 01  Store: go

On the RCU the recall menu will indicate:

*

Recall System Preset

*

  

#:

 01  Store: go

Recalling a preset is identical to storing a preset.

The following setup fields all appear on the last page of the Setup Mode:

ID:1 Peak:hld  Contrast :126  Backlight: on

The Preamplifier ID:

  This field allows one to select a unique identification for each

preamplifier in a system.  The ID number also assigns channel numbers to the
preamplifier.  For instance, ID 1 includes channels 1-8, ID 2 includes channels 9-16
and so on to ID 8 which includes channels 57-64.  Pushing the DATA knob once
allows the ID number field to changed by rotating the DATA knob.  Pushing the DATA
knob again saves the setting.

Summary of Contents for 801R

Page 1: ...NUAL MODEL 801R REMOTE CONTROL MICROPHONE PREAMPLIFIER Software version 1 4 PO Box 204 Boulder CO 80306 tel 303 443 7454 fax 303 444 4634 http www gracedesign com Revision B January 2000 Copyright 2000 Lunatec LLC ...

Page 2: ...hich provides a bi directional data link I 2 C is a serial buss which makes parallel connections between all of the devices in the system In an 801R system the RCU is the Master and all of the preamplifiers are slaves The data on the display of the RCU is echoed back from the preamplifier so it shows the actual status of the preamplifier For instance when you tell a preamplifier to change its gain...

Page 3: ...coder is used to select one of the eight visible channels for adjustment When selected the settings for a channel can be adjusted with the 48 PHASE or DATA controls Pushing the 48V or PHASE button toggles that function on or off on that channel Pushing the DATA control enters the Gain Adjust mode While in Gain Adjust Mode the Gain numeric display characters at the top of the screen are highlighted...

Page 4: ...eak output level information up to 4dB of the output clip point When using the peak hold feature you will notice that the peak hold indicator is a small line for all levels except 25dBu which is indicated with a square box The clipping level of the 801R is 29dBu It should be noted that the bar graph meters in the 801R have an integration time that is approximately that of the DIN 45406 PPM meter s...

Page 5: ... return to Channel mode Group Mode can not be directly accessed from Meter Mode Setup Mode The Setup mode displays a series of menus for various user setup options Step through the various setup screens on a preamplifier by pushing the MODE pushbutton On the RCU setup mode is accessed by pushing and holding the MODE pushbutton for two seconds and then releasing it Once in setup mode pressing the M...

Page 6: ...ull setup sets all channels to the lowest gain setting 48V off phase reverse off and deletes any channel groups Pre set register 0 is helpful when setting up for a new session Note when you recall a preset from the front panel of a preamplifier you are recalling from that preamplifier only If you recall a preset from the RCU a recall command will be sent to all of the preamplifiers in the system O...

Page 7: ...y back light illumination can be turned off if desired GROUP MODE The group mode allows two to eight adjacent channels to be grouped together for gain change operations This can be very convenient when using stereo pairs or groups of microphones on one instrument To enter group mode push the GROUP pushbutton The words Group Mode Active will appear just below the gain status characters To define a ...

Page 8: ...ble is included For safety it is recommended that the cord be connected to a grounded outlet please see grounding options next page AC input voltage settings can be adjusted for 100V 120V 220V and 240V operation at 50 60Hz If your voltage is 230V use the 240V setting From the rear of the power supply unit open the trap door next to the IEC power inlet with a small screwdriver Carefully pull the vo...

Page 9: ...S Input connections are made via female XLR connectors with pin 2 positive pin 3 negative and pin 1 ground 48V phantom power is supplied on pins 2 and 3 Output connections are made via male XLR connectors with pin 2 positive pin 3 negative and pin 1 ground An additional set of parallel outputs is provided with a 25 pin D sub connector Both sets of output connectors can be used simultaneously If th...

Page 10: ...clude the data signal in a snake that contains only line level signals Preamplifier to Preamplifier connections are made by connecting a 9 pin I 2 C cable from the I 2 C OUT connector on one preamplifier to the I 2 C IN connector on another preamplifier Note In a multiple preamplifier system all preamplifiers must be powered on for the RCU to communicate at all If one preamplifier is accidentally ...

Page 11: ...TE DIN 4 1 50Hz 7kHz 0040 NOISE REFERRED TO INPUT 60dB gain 50Ω source 129dB 60dB gain 150Ω source 127dB 60dB gain 600Ω source 123dB PHASE DEVIATION 50 20KHz 4 CROSSTALK Any Channel 40 5dB gain 1kHz 100dB CMRR 60dB gain 3 5Vcm 1KHz 70dB 60dB gain 3 5Vcm 10KHz 70dB Output CMRR 60dB PHANTOM POWER Voltage 48V 0 9 0 0 6 8kΩ resistor match tolerance 0 01 MAXIMUM OUTPUT LEVEL Balanced 28dBu Unbalanced 2...

Page 12: ...Y SPECIFICATIONS POWER CONSUMPTION 100 240VAC 50 60Hz 63 Watts max WEIGHT 4lbs DIMENSIONS H1 7 x W8 5 x D8 5 REMOTE CONTROL UNIT SPECIFICATIONS POWER CONSUMTION 7 5VDC 55A WEIGHT 3 3lbs DIMENSIONS H2 5 x W11 0 x D3 5 ...

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