Related Manuals for Grace m802
Summary of Contents for Grace m802
- Page 1 Owner’s Manual Preamplifier firmware version Remote firmware version Manual Revision all contents © Grace Design/ Lunatec LLC...
-
Page 2: Table Of Contents
Welcome Thank you for purchasing the Grace Design m802 preamplifier system. With the combination of unmatched sonic performance, remote control capability and total reliability, the m802 is the ultimate, state of the art mi- crophone preamplifier solution. We have designed the m802 to be as easy and intuitive to use as possible. However, we strongly recommend that you read this product manual thoroughly to familiarize yourself with the unique features and capabilities of the m802. -
Page 3: Important Safety Information
The Grace Design m802 contains no user serviceable components. Contact Grace Design for repair and upgrade information. In the event that your Grace Design m802 needs to be returned to the factory, contact us for a re- turn authorization number. -
Page 4: Overview
Overview SySteM coMponentS The m802 system consists of an 8 channel preamplifier chassis, a power supply chassis, and an optional remote control unit (referred to as the RCU in the rest of this manual). The preamplifier chassis contains 8 audio ampli- fier PCBs, a micro controller PCB, and a front panel control interface. -
Page 5: Front Panel Diagram
Front Panel Diagram +48V PEAK SETUP GROUP DATA (push) 1. +48 Volt phantom power pushbutton 5. DATA encoder with pushbutton 2. GROUP pushbutton 6. SETUP select pushbutton 3. Ø phase reverse pushbutton 7. PEAK indicator reset pushbutton 4. LCD display 64x240 pixels m802 RCU Diagram remote microphone preamplifier CHANNEL SELECT... -
Page 6: M802 Rearpanel Diagram
m802 Rearpanel Diagram CONTROL MIC IN MIC IN C / RS485 / RS422 MIDI C / RS485 / RS422 LINE OUT LINE OUT DC IN LINE OUT LINE OUT 1. MIDI In / Out 4. DB25 Line Output 2. DC Power Input 5. -
Page 7: M802 Power Supply Diagram
DC power cord. Replace a damaged DC power cord with a replacement from Grace Design (WA084) only. To avoid any interference with the low level audio circuitry, we recommend to locate the power supply at least 3’... -
Page 8: Audio Connections
CAM SETTING LINE VOLTAGE FUSE VALUE 100V~ 100V~ 250V~ T 800mA L 120V~ 120V~ 250V~ T 800mA L 220V~ 220V~ 250V~ T 500mA L 240V~ 230V~ 250V~ T 500mA L 240V~ 240V~ 250V~T 500mA L figure 1 / fuse value table cHeck line voltaGe SettinGS The power supply unit has been set from the factory to operate at the voltage required for your part of the world. -
Page 9: Control Data Connections
In single wire operation AES outputs 1-4 are copied by AES outputs 5-8 providing two sets of (8-channel) digital outputs. In dual wire mode, AES outputs 1-4 carry audio channels 1-4 and AES outputs 5-8 carry audio chan- nels 5-8. Please see the digital output diagram on page 22. The A/D converter module also has an additional set of outputs. -
Page 10: Remote Control Unit
3. Rotate the GAIN/EDIT knob to select the serial mode then push the GAIN/EDIT knob to save the set- ting. Note that the RS-485, RS-422, and I2C ports on the preamplifier use different pin configurations than the RCU. Please be careful to use the correct wiring for your m802 system. -
Page 11: Preamplifier Operation / Modes
Preamplifier Operation / Modes cHannel Select MoDe (a/D converter off) figure 4 / channel mode (a/D converter off ) This is the default power on mode. In Channel Select mode the rotary encoder is used to select one of the eight visible channels on the LCD display for adjustment. - Page 12 Phase Reverse) is achieved using the same method previously described. Once the A/D converter is enabled, the Channel Select screen on the m802 will show information re garding the current A/D converter configura- tion. Beginning at the bottom left and moving across to the right, the following information is displayed: Cur- rent sample rate, the A/D converter clocksource, professional / consumer data format, the AES3 transmission format, and the clock status.
- Page 13 A/D converter and clock setup (Only available if A/D converter module is installed) Adcfs : AdcOFF Adc Clk : Int Clkout : CkIN The A/D converter / clock setup menu allows the user to configure the A/D converter sample rate and clock routing.
- Page 14 The display contrast can be adjusted to optimize the display for various viewing angles. The Display contrast Display contrast settings can be adjusted by pushing the DATA knob once and then turning the DATA knob until the desired contrast is achieved. Pushing the DATA knob again saves the setting. The LCD display back light illumination can be turned off if desired.
- Page 15 adjusted when in Group mode. To toggle the status of Phantom power or Phase on a channel, you must exit Group mode. front panel lockoUt MoDe figure 5 / group mode The front panel controls on an individual m802 can be locked to prevent unintended changes to its settings. Preamplifier settings can still be controlled from the RCU or via MIDI.
-
Page 16: A/D Converter Sensitivity Calibration
can only be made via MIDI commands or from the RCU. To exit Lockout mode, send the MIDI unlock command or press and hold the data knob for 5 seconds. m802 Group mode can be used when in MIDI control mode, but if a grouped channel’s gain is Group mode changed from within Pro Tools®... - Page 17 3. Enter the ADC Sensitivity Setup menu by powering up the m802 while the PEAK button is pressed. 4. Move the encoder until “ADC Sensitivity” is highlighted. Click the encoder to edit the parameter. Ro- tate the encoder to choose the sensitivity setting you wish to modify ((A) or (B)). Click the encoder once the desired setting is selected.
-
Page 18: Operation Within Pro Tools
Operation within Pro Tools The m802 can be controlled directly from AVID ProTools® HD, via MIDI jacks on the m802 and the AVID I/O. Using the m802 with ProTools® requires some setup in ProTools® and the host computer’s MIDI configuration (MSS for windows, AMS for MAC). -
Page 19: Remote Control Unit Operation
command to select between the available inputs on each channel. On a standard preamp card, ribbon mode is activated if “LINE INPUT” is selected via MIDI. If an optional 130V DPA card is installed, the DPA 130V mic input is selected if “LINE INPUT”... - Page 20 When the optional A/D converter is active on preamp in the system, it will be reflected on the Meter Mode screen. Underneath the corresponding channels “A/D On: dBFS Scale” will be displayed. This indicates that the scale is no longer in dBu, but rather dBFS just like Gain mode. Any digital overs that occur in the A/D converter will be latched and displayed as small ovals above each meter.
-
Page 21: Cable Diagrams
Cable Diagrams RS422 RCU to Preampli er Cable Diagram PREAMPLIFIER SHIELD/GND pin 7 pin 7 PAIR #1 BLACK pin 3 pin 4 pin 6 pin 8 PAIR #1 RED pin 3 PAIR #2 GREEN pin 4 Wire is Belden 8723 24 AWG dual twisted pair with foil shield or equivalent PAIR #2 WHITE pin 9 pin 6... - Page 22 I 2 C over CAT5 Cable Diagram CONNECTOR 1 CONNECTOR 2 PAIR #1 BLUE pin 1 pin 1 pin 2 PAIR #1 GREEN pin 2 pin 5 PAIR #2 BLUE/ WHITE pin 5 PAIR #2 GREEN/WHITE pin 5 pin 5 CONNECTOR 1 DB9 male CONNECTOR 2 DB9 male serial #’s...
-
Page 23: Specifications
Specifications PREAMPLIFIER SPECIFICATIONS FREQUENCY RESPONSE @ 40.5dB gain ± 0.2dB 50Ω source 15Hz-300KHz @ 40.5dB gain ± 3dB 50Ω source 4.5Hz-1.0MHz THD+N @ 19.6dB gain +20dBu out, 1kHz <.0007% @ 40.5dB gain +20dBu out, 1kHz <.0010% @ 60.0dB gain +20dBu out, 1kHz <.0050% INTERMODULATION DISTORTION @40DB GAIN +20DBU OUT SMPTE/DIN 1:1 (50Hz, 7kHz) - Page 24 A/D CONVERTER SPECIFICATIONS DYNAMIC RANGE 20Hz-20kHz >115dB “A” weighting >117dB THD+N 1kHz, -1dBFS, 20Hz-22kHz < 0.00026% (-112dB) FREqUENCY RESPONSE +/-0.2DB -3DB 44.1kHz Fs 5Hz-21kHz 22kHz 48kHz Fs 5Hz-23kHz 24kHz 88.2kHz Fs 5Hz-41kHz 44kHz 96kHz Fs 5Hz-45kHz 48kHz 176.4kHz Fs 5Hz-54kHz 72.5kHz 192kHz Fs 5Hz-59kHz...
-
Page 25: Cleaning And Maintenance
Warranty Information • Grace Design warrants all of our products to be free of defective parts and workmanship for a period of five years. • This warranty period begins at the original date of purchase and is transferable to any person who may subsequently purchase the product during this time. -
Page 26: Manual Revisions
Manual Revisions Revision Page Change Date Initials no revition history available updated 130V/ribbon mic mode info 03/23/2010 18,19 updated ProTools operation information 03/23/2010 added RS-485 / RS-422 control software added 6/15/2011...
Need help?
Do you have a question about the m802 and is the answer not in the manual?
Questions and answers