Grace m902 Скачать руководство пользователя страница 21 | Manualshive

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grace design

m

902

owner’s manual

21

Revision

Page

Change

Date

Initials

A-B

Initial release

E

all

added TRS to XLR diagram, revised layout

4/07/08

edg

F

all

firmware update to Rev 1.5

8/26/08

edg

G

8

Added IF remote commands, Changed wording in power
up sequence.

7/22/09

edg

manual revIsIons

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Содержание m902

Страница 1: ...Manual Rev G Firmware v1 5 all contents Grace Design Lunatec LLC owner s manual reference headphone amplifier ...

Страница 2: ...tained in this manual Doing this now will make your experience with the m902 more enjoyable In the event that you encounter any technical or operational difficulties with this or any Grace Design product please feel free to contact us at 303 443 7454 Our office hours are from 9 to 5 Monday through Friday MST Or you can e mail your questions to info gracedesign com Also please remember to visit our...

Страница 3: ...ture range 10 C to 40 C Storage and transportation temperature range 40 C to 70 C Maximum altitude 3000m 9843 ft Equipment suitable for continuous operation Weight 2 3kg 5lbs Safety Marking Symbols CAUTION READ ACCOMPANYING DOCUMENTS This symbol located on the equipment and in this manual refers to important instructions Read this manual thoroughly before operating this equipment This symbol locat...

Страница 4: ... 0 5db steps within a 95db range 0 05db channel level matching to ensure true stereo balance at any monitoring level A large blue 7 segment display is used to show headphone and stereo main output levels Calibration mode enables left right balance adjustment for both headphone and mains outputs There s also a display dim mode that turns off all led s except for the main power switch led X feed cro...

Страница 5: ...UTPUT LEVEL SUBMENU DISPLAY This blue 2 digit display shows the current relative output level values based on the position of the main level rotary encoder The range of this display is 0 to 99 Note the decimal represents a 0 5dB increment This display is also used to give the user information in the submenu H OUTPUT SELECTION LEDS These LEDS indicate which output is currently selected by the user ...

Страница 6: ...ll shipping boxes carefully remove the m902 and put it aside Before you go any further check to make sure the above listed components are included with your shipment If you believe something is missing contact your friendly Grace Design dealer and they will make sure you re taken care of SAVE YOUR BOX We strongly encourage you to save the box and shipping materials supplied with your m902 They are...

Страница 7: ...se a 10 32 x 1 2 or a 10 32 x 3 8 machine screw Do not use a screw longer than 1 2 Powering up the m902 Okay let s get started in making the necessary connections to get your m902 up and running POWER CONNECTIONS The Disconnect Device for the m902 system is the Mains plug or the Appliance Coupler on the power supply cord The Disconnect Device must remain accessible and operable The power supply co...

Страница 8: ...led below Please contact us if you have any questions regarding cable terminations or pinout specifications BALANCED ANALOG INPUTS The balanced stereo analog input is provided via female XLRs Connection is made using standard balanced XLR cables This input is wired to the pin 1 shield pin 2 positive pin 3 negative XLR standard UNBALANCED ANALOG INPUT This stereo input is provided for interfacing w...

Страница 9: ...RING IS OPEN TIP RING SLEEVE Unbalanced Input RCA Balanced Output 1 4 TRS pin 1 pin 2 pin 3 TIP RING SLEEVE Balanced Input XLR Balanced Output 1 4 TRS figure 2 balanced output to unbalanced input Once you ve connected the power and have made all of the audio connections to your m902 Now the fun begins The m902 has been designed to provide simple and intuitive operation However to get the most out ...

Страница 10: ...output selection indicator LEDs show the user which output is currently under user control To toggle the output control selection simply press and release the rotary level encoder You will see the selection indicator change The rotary volume encoder is used to adjust the level of both the headphone and line level outputs independently The level of the currently selected output is displayed in the ...

Страница 11: ... a lower level and with some time delay compared to the right ear As well the right speaker sound that reaches the left ear does not have a flat frequency response as the sound waves have traveled around the shape of your head before reaching your left ear The brain uses delay level and frequency response characteristics to process the location of a sound and hence create an aural image When liste...

Страница 12: ... The front panel LED indicates the currently selected output This is the output of which you have balance control over To adjust the balance for the output not selected you must first exit the submenu select the other output and re enter the submenu activating balance mode Balance control of 6dB in 0 5dB increments is available for both outputs When no balance offset has been made both the left an...

Страница 13: ...ary encoder counter clockwise turns the crossfeed mode OFF This is indicated by the CF symbol without the decimal points EXCLUSIVE OUTPUT MODE The m902 features a special mode that allows the user to toggle between outputs and mute the output not selected The exclusive output mode can be very useful when referencing between the line outputs controlling your speakers and your headphones Instead of ...

Страница 14: ...s a function of the EXCLUSIVE OUTPUT mode The user toggles output selection to line The headphone output mutes and the line output once again turns on due 4 to the EXCLUSIVE OUTPUT logic OUTPUT TOGGLE LOCK OUT MODE Situations may exist when the user of the m902 wishes to lock the output toggle function of the encoder switch to prevent inadvertent switching Example A musician is using the m902 in a...

Страница 15: ...ower up level Once in the submenu the power up level is indicated by the characters PL in the 7 segment display Turning the rotary encoder clockwise stores the current level as the power up level which is indicated by the decimal points illuminating INFRARED REMOTE CONTROL ENABLE This feature allows the user to disable the infrared remote control operation of the m902 The m902 remote control uses ...

Страница 16: ...LINE Pressing and releasing this button during normal operation toggles the selected output under control Once pressed this change will be reflected on the m902 display The newly selected output indicator will illuminate and the corresponding level will be displayed Pressing and releasing this button while in balance mode will toggle the selected output under balance adjust The newly selected outp...

Страница 17: ...2 CHANNEL 2 CHANNEL HEADPHONE INPUT SELECT AES INPUT AES3 RX DIGITAL INPUTS S PDIF INPUT TOSLINK INPUT s Lock PLL CLOCK AUDIO 192kHZ 24 BIT USB INPUT ANALOG INPUTS INPUT SELECT INPUT SELECT CROSSFEED LINE OUTPUT LEVEL CONTROL HEADPHONE OUTPUT LEVEL CONTROL UNBALANCED ANALOG OUTPUT CROSSFEED ENABLE OUTPUTS HEADPHONE AMPLIFIER TRANSIMPEDANCE OUTPUTS MUTE BALANCE LEVEL ...

Страница 18: ...LUSIVE OUTPUT mode setting 0x02FDD827 0x000000BB CROSSFEED Press Release Toggles CROSSFEED mode setting 0x02FD08F7 PHONES LINE Press Release Toggles selected m902 OUTPUT 0x02FD58A7 PHONES LINE Press Hold Toggles DISPLAY DIM mode setting 0x02FD58A7 0x000000BB BALANCE Press Release Toggles in and out of BALANCE adjust mode 0x02FD7887 VOLUME UP Press Release IncrementsVOLUME or BALANCE UP 0x02FDE01F ...

Страница 19: ...UT 53K Ohms unbalanced OUTPUT 1 Ohm DYNAMIC RANGE 0dB gain 116dB 10dB gain 119dB THD N 10dBu out 50 Ohm load SMPTE 4 1 0 01 Headphone 10dBu out 50 Ohm load 0 008 Line Out 10dBu out 0 02 ATTENUATOR CHANNEL MATCHING Attenuator switch 0 05dB Attenuator range 99 5dB D A SPECIFICATIONS Input sample rate 32 44 1 48 88 2 96 176 4 192kHz THD N 44 1kHz 24 bit 1kHz 20dBu out 0 002 NOISE FLOOR 0dB gain 22 22...

Страница 20: ...u can register your product online at www gracedesign com This warranty is in lieu of all other warranties whether written expressed or implied INCLUDING ANY 5 WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE In no event will Grace Design be liable for lost profits or any other incidental consequential or Exemplary 6 damages even if Grace Design is aware of the possibility of such...

Страница 21: ...n Page Change Date Initials A B Initial release E all added TRS to XLR diagram revised layout 4 07 08 edg F all firmware update to Rev 1 5 8 26 08 edg G 8 Added IF remote commands Changed wording in power up sequence 7 22 09 edg manual revisions ...

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