**__Question:__** What are the differences in versions? \\
**__Answer:__** Link: [[airenceversion:start|please read the info at this link]]
\\
====== Attention ! ======
^  Be carefull due to a hardware change it is NOT possible to combine older versions with units produced after 01-01-2022 !!!  ^^^
|  V.10 Main\\ V.10 Extender  |  01-01-2022  |  POWER SUPPLY CHANGED TO 12 VOLT INSTEAD OF THE EARLIER USED 36 VOLT\\  MAIN V.10 and EXTENDER V.10 ARE NOT COMPATIBLE WITH OLDER VERSIONS !!!\\ Connecting a older to a newer units will damage the older unit !!!  |
\\
^  Version  ^  Date  ^  Airence PCB info and modifications  ^
|  V.1  |  06-12-2013  |  -  |
^  ^  ^  ^
|  V.2  |  14-01-2014  |  Airence 1C > Airence 1D: Added Mic-on 2 circuit at Extender  |
^  ^  ^  ^
|  V.3  |  18-11-2014  |  Airence 2D > Airence 2E: USB noise reduced at Main  |
|    |    |  Airence Main and Extender fronts with Powder Coating  |
^  ^  ^  ^
|  V.4  |  20-01-2015  |  Airence 6E > C20, C38, C39, C40 replaced by 0R (wire), to prevent distortion at Announcer and Studio output  |
^  ^  ^  ^
|  V.5  |  29-04-2015  |  Airence 9B > Added 8x 100K resistor, protection for peak voltages when connecting a powered Extender  |
|    |    |  Airence Main new fronts without Master faders  |
^  ^  ^  ^
|  V.6  |  28-05-2015  |  Airence 9B > C64, C65, C66, C67 replaced by 0R (wire), for better ground connection  |
|    |    |  Airence Main and Extender remove powder coating at 15pin Sub D connector, for better ground connection  |
^  ^  ^  ^
|  V.7  |  xx-06-2016  |  Airence Main 4, 5 and 6 pcb > SMD with different ledbar drivers  |
|    |    |  Airence Main Added Digital option  |
|    |    |  Airence 3 (Telco) > SMD with added Ring signal to Start jack  |
|    |    |  Airence Main Added 100N capacitor to remove Fader start noise in Audio  |
|    |    |     |
|    |    |  __Airence V7 (Telco, Voip, Master 4, 5 and 6 pcb) not compatible with older versions due to Communication buss and Digital option. \\ You'll have to replace the complete set except Airence 6 and 7!__  |
^  ^  ^  ^
|  V.8  |  xx-11-2017  |  Airence 3 (Telco) > R15, R17 replaced by leaded 600mW Resistors [[https://www.d-r.nl/wiki/dokudata/faq/airence/TELCO AIRENCE MEMO-R17-R18.pdf|R17-R18 modification]]  |
^  ^  ^  ^
|  V.9  |  xx-05-2018  |  Airence 3 (Telco) > R15, R17 replaced by SMD High power  |
|    |  xx-05-2018  |  Airence 10E > Mac compatible  |
^  ^  ^  ^
|  V.10 Main\\ V.10 Extender  |  01-01-2022  |  POWER SUPPLY CHANGED TO 12 VOLT INSTEAD OF THE EARLIER USED 36 VOLT\\  MAIN V.10 and EXTENDER V.10 ARE NOT COMPATIBLE WITH OLDER VERSIONS !!!\\ Connecting a older to a newer units will damage the older unit !!!  |
\\
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