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Crane Song Avocet IIA Quantum DAC, Руководство пользователя

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Crane Song Avocet IIA Quantum DAC Скачать руководство пользователя страница 8

Gain trim can be cleared, locked or enabled by using the Shift key to reach the  desired
selection.

Clearing the offsets set all input trims and the mono trim to 0 so all inputs are at the
default setting.  The mono trim works in surround mode only.

Locking and unlocking the trims prevent unintended changing of the trims or allow
access to the trims.  The hold down timer and the led flash will not happen
when offsets are locked.

This is for input level matching.

SHIFT MODE GAIN TRIM FUNCTIONS

Gain trim offset clear

Gain trim offset lock

Gain trim unoffset lock

must be in shift mode
to enable these functions

SHIFT KEY TO ENABLE SHIFT MODE

8

Содержание Avocet IIA Quantum DAC

Страница 1: ... for jitter reduction up sampling to 211KHz Avocet has always upsampled to 211KHz The reference clock has less then 1pS 0 5pS typical 1Hz to 100KHz and a proprietary reconstruction filter for accurate time domain response New Direct sub woofer outputs for each of the three output have been added The output levels are now programmable in 0 25 db steps for speaker level matching ...

Страница 2: ...2 NOTE There is information in the Avocet II manual that applies to the Avocet IIA This information will be added to this doc at some point in time ...

Страница 3: ...sounds like Input level when Phones or Dim modes are not selected 1 DB steps through most of the range Mute kills the main output On power up Avocet is muted Monos the stereo source Dims the main audio path The dim level is set by turning the level while dim mode is active Selection of phones is over ridden by selecting dim Changes the phase of one channel disabled in surround mode SHIFT MODE to r...

Страница 4: ... internal settings This is the same as rebooting the remote All gains main and phones are set to zero Output 1 is the selected output DAW is the input selected Phones are set to the Aux input Stereo speaker selection is selected All offsets are cleared CLEARING THE INTERNAL SETTINGS System Reset ...

Страница 5: ...d or more the talk back releases when the button is released non latching The dim monitor level can be set when the talkback button is pushed The monitors can be dimmed to off or a level that is below feedback This will allow comminution in both directions while in talk mode When in talkback all other buttons are locked out until talkback is released 5 ...

Страница 6: ... cleared locked or enabled by using the Shift key to reach the desired selection See shift mode setup functions The mono function also has a gain trim for level matching in surround After selecting mono a second time if one presses and holds the mono select button for one half second or more Avocet will enter the mono gain trim mode To leave the gain trim mode press the button again This will caus...

Страница 7: ...SHIFT MODE SETUP FUNCTIONS 7 ...

Страница 8: ...rks in surround mode only Locking and unlocking the trims prevent unintended changing of the trims or allow access to the trims The hold down timer and the led flash will not happen when offsets are locked This is for input level matching SHIFT MODE GAIN TRIM FUNCTIONS Gain trim offset clear Gain trim offset lock Gain trim unoffset lock must be in shift mode to enable these functions SHIFT KEY TO ...

Страница 9: ...he Shift Mode Select the source for the DAW input between AES SPDIF OPTICAL 9 Changes output 3 to work in parallel with outputs 1 and 2 for use as a sub woofer output Functions F1 F2 for future features F3 allows turning both ANALOG 1 ANALOG 2 at the same time it mixes the 2 inputs ...

Страница 10: ...CK MIC GAIN is changed by selecting the TALK button when in the SHIFT MODE Turning the gain knob changes the mic gain The gain steps are 3 db steps to 72 db of gain GAIN SHIFT MODE TALK BACK GAIN FUNCTIONS 10 ...

Страница 11: ...ift button and then selecting the group button What it does is in surround mode it groups together Left Right Cen ter to function as one button Surround Left and Surround Right as one button and Extra Left and Extra Right as one button This showes the key grouping 11 ...

Страница 12: ...e mode Headphone Level Selects direct AUX analog input for the Headphone output The headphone source is selected by the main input buttons It s level does not change with the main system level The headphone source is selected by the main input buttons It s level changes with the main system level 12 ...

Страница 13: ... is the surround mode of operation Selecting the left right or both left and right will disable the sur round channels This selects which speaker is the mono speaker when the mono function is selected This is the stereo mode of operation To exit the setup mode touch the output select button a second time During Speaker setup the Sub Woofer mode is disabled Once set up switching between the speaker...

Страница 14: ...is a transparent mode for surround on all outputs The transparent mode removes some of the lock outs that exist when in stereo the center speaker will be used for the mono speaker New to Avocet IIA Direct Sub Out can be turned on or off for each of the outputs Level matching of the 3 speaker outputs is set by turning the knob external pads are no longer required 14 ...

Страница 15: ...cet into Surround mode for the selected output DIRECT SUB MODE By selecting this function which must be set in each output the Direct Sub output is turned on when the OUT1 is selected The OUTPUT LEVEL of each speaker may be trimmed down for speaker level matching When setting up the system so that the normal listening level is around 0 on the dial When entering the speaker output setup No reductio...

Страница 16: ...t the Direct Sub output is turned on when the OUT2 is selected The OUTPUT LEVEL of each speaker may be trimmed down for speaker level matching And setting up the system so that the normal listening level is around 0 on the dial When entering the speaker output setup No reduction in level is indicated with the level leds showing 0 The speaker trims are in 0 25 db for a max trim of 15 75db There are...

Страница 17: ...ut the Direct Sub output is turned on when the OUT3 is selected The OUTPUT LEVEL of each speaker may be trimmed down for speaker level matching And setting up the system so that the normal listening level is around 0 on the dial When entering the speaker output setup No reduction in level is indicated with the level leds showing 0 The speaker trims are in 0 25 db for a max trim of 15 75db There ar...

Страница 18: ...ory pin out Avocet IIA shipped configured for stereo will have the Accessory connector configured in the stereo mode This uses the Tascam style of signal assignment Any one who upgrades from and earlier version and uses the Accessory connector may need to move the internal ribbon cable ...

Страница 19: ...ack switch input CH7 Meter Left analog CH8 Meter Right analog PINOUT DETAILS STEREO SIGNAL CH1_HOT 24 SUB RIGHT Symmetrical TO UNBALANCE DO NOT CONNECT XLR PIN 3 CH1_COLD 12 CH1_GND 25 CH2_HOT 10 SUB LEFT Symmetrical TO UNBALANCE DO NOT CONNECT XLR PIN 3 CH2_COLD 23 CH2_GND 11 CH3_HOT 21 PHONES LEFT PIN2 SIG CH3_COLD 9 CH3_GND 22 CH4_HOT 7 PHONES RIGHT PIN2 SIG CH4_COLD 20 CH4_GND 8 CH5_HOT 18 TAL...

Страница 20: ...round mono input 1 23 Surround mono input 2 24 Surround mono input 3 25 Surround mono input 4 To use the external mute or solo inputs 5 to 15 volts needs to be applied to the control input lines Polarity must be followed These inputs are optical isolated The mute control is push on push off the talk input is also push on push off or latching The solo switching remains in the soloed state as long a...

Страница 21: ... Frequency Standard PRS10 Without info on the measurement bandwidth and test instrument used the measurement is impossible to know about Test Software does not make a distinction between random and deterministic jitter AES 12id 2006 r2011 excludes modulation components below 10 Hz in it s jitter definition Jitter requirements depends on the curcuits being used and the desired results ...

Страница 22: ... info on the measurement bandwidth and test instrument used the measurement is impossible to know about Test Software does not make a distinction between random and deterministic jitter AES 12id 2006 r2011 excludes modulation components below 10 Hz in it s jitter definition Jitter requirements depends on the curcuits being used and the desired results 22 44 femto Seconds ...

Страница 23: ...CONFIGURATION JUMPERS Do not change unless one is certain that you understand what they do They are fractory set Provided for reference 23 ...

Страница 24: ...DO NOT INSTALL THE FIRMWARE UPDATE JUMPER WITH OUT THE ROM INSTALLED DOING SO WILL CAUSE LOSS OF OPERATION 24 ...

Страница 25: ...DO NOT INSTALL THE FIRMWARE UPDATE JUMPER WITH OUT THE ROM INSTALLED DOING SO WILL CAUSE LOSS OF OPERATION 25 ...

Страница 26: ...DO NOT INSTALL THE FIRMWARE UPDATE JUMPER WITH OUT THE ROM INSTALLED DOING SO WILL CAUSE LOSS OF OPERATION 26 ...

Страница 27: ...DO NOT INSTALL THE FIRMWARE UPDATE JUMPER WITH OUT THE ROM INSTALLED DOING SO WILL CAUSE LOSS OF OPERATION 27 ...

Страница 28: ...DO NOT INSTALL THE FIRMWARE UPDATE JUMPER WITH OUT THE ROM INSTALLED DOING SO WILL CAUSE LOSS OF OPERATION 28 ...

Страница 29: ...DO NOT INSTALL THE FIRMWARE UPDATE JUMPER WITH OUT THE ROM INSTALLED DOING SO WILL CAUSE LOSS OF OPERATION 29 ...

Страница 30: ...30 QUANTUM DAC PCB SHOWING GAIN TRIMS AND JUMPERS Meter Gain Trim D A Gain Trims Meter Master jmp on Surround Slave jmp off Meter Gain Trim ...

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