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Lavry AD11 Manual
Summary of AD11
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Lavryblack series model ad11 stereo analog to digital converter with microphone preamplifier.
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Lavry engineering, inc. P.O. Box 4602 rolling bay, wa 98061 http://lavryengineering.Com email: techsupport@lavryengineering.Com may 25, 2011 rev 1.1.
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Ad11 table of contents table of contents subject page quickstart guide- introduction: line and microphone inputs 1 quickstart guide- setting example 2 quickstart guide- diagram 1, ad11 modes- setting & operation 3 quickstart guide- diagram 1 sections, setting controls 4 quickstart guide- diagram 1 s...
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Ad11 table of contents.
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Ad11 quickstart guide 1 quickstart guide- introduction please note: because the ad11 uses the same xlr inputs for line and microphone level, it is possible that phantom power could be present on the input(s) if the user does not exercise care in checking the phantom power settings and gain settings....
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Ad11 quickstart guide 2 quickstart guide- setting example this procedure assumes settings have not been changed from the factory defaults, which are: 44.1 khz sample frequency (sf), spdif output format “ on, ” meter peak hold “on.” 1) turn the ad11 power “on” and wait for the initialization to compl...
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Ad11 quickstart guide 3 quickstart guide- settings and operation the ad11 front panel has three sections: (diagram 1) when ac power is applied to the ad11, the unit initializes itself. First, a single led “scans” each row of the front panel meters, then both rows. The unit then enters a special vers...
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Ad11 quickstart guide 4 - exiting setting mode causes the settings to be stored in non-volatile memory. This means the ad11 will retain the settings even if the ac power is turned “off.” any time the gain display reverts to the “le” symbol, the gain settings are also stored. Diagram 1, section 1- se...
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Ad11 quickstart guide 5 - external word clock . This setting enables synchronization to an external word clock signal at the sample frequency set in the sf section (above). The led in the “ left channel” row ” above wc indicates “lock” to an external word clock signal. Please see diagram 2 on page 1...
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Ad11 quickstart guide 6 in other words, the same analog input level will result in digital “clipping;” but the average output level of typical music program will be 3db’s louder . - the left row led indicates the status of the left channel sat setting, and the right row led indicates the status of t...
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Ad11 operation 7 model ad11 the lavryblack ad11 features: - built in microphone preamps with phantom power - accepts +4 or -10 line level inputs balanced or unbalanced (micpre’s are relay bypassed) - front panel adjustable gain for each channel - 0 to 12 db of gain for line level inputs in precise 1...
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Ad11 operation 8 - the usb output can be used to connect to a windows ® pc or apple ® computer that supports usb 2.0. There are no drivers to install; but asio4all can be installed on windows pc’s for use with asio compliant software. Please see the next section for details on usb operation. Once th...
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Ad11 operation 9 symbol, and select “use this device for sound input.” in the right pane, under “input,” select the desired sample frequency from the dropdown list under format. - the lavry adc is now available for use in an “aggregate device.” click on the aggregate device if it already exists, and...
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Ad11 operation 10 for more details on the gain controls, see operation manual section “c. Gain setting.” b. Setting mode - please use caution when changing settings- phantom p ower settings as well as “digital” settings. This applies to changes between line and micpre range; but not to changes of ga...
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Ad11 operation 11 the sample frequencies (sf) setting controls the digital audio and word clock outputs of the ad11. When operating on external clock, it is also necessary to set the sf of the ad11 to match the sf of the external clock source. - to change the desired sf, enter the setting mode by cl...
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Ad11 operation 12 however, some equipment will only operate properly if the correct format is presented to the inputs (typically consumer oriented equipment due to copyright concerns). For this reason, the ad11 has settings for the output format. These settings are numbered 7& 8 in diagram 2, and li...
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Ad11 operation 13 - when this function is enabled, signals below “ -3 ” on the ad11’s meter are completely un-altered (linear), and signal peaks above this level are progressively “rounded-off” in a manner similar to analog tape saturation. - internally, s ignals that would normally reach “0dbfs” ar...
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Ad11 operation 14 output sample. There is no “attack time;” so the peak level displayed will always accurately indicate the maximum peak level for signals as short as one sample period. The “ 0 ” led is “digital clipping level” or “0dbfs” (zero db full-scale digital level). This would correspond to ...
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Ad11 specifications 15 all three digital outputs are available at all times, so multiple recording or monitoring devices can be connected to the ad11. Please note: there will be a difference in the (short) “delay” between when computer software receives the usb input signal and when a non-computer d...
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Ad11 specifications 16 xlr unbalanced input: with gain set to 6 db +18dbu with gain set to 12 db +12dbu ¼” input balanced or unbalanced: with gain set to 0 db +11dbu (+8.8dbv) with gain set to 12 db - 1dbu ( -3.2dbv) input connections line level: xlr - balanced analog: pin 2 non-inverting, pin 3 inv...
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Ad11 warranty 17 limite d w ar ra n ty – l av ry b lack se ries mo de l a d 11 subject to the conditions set forth below, for one year after the original purchase date of the product, lavry engineering will repair the product free of charge in the united states in the event of a defect in materials ...