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User’s Guide OctaMic II

© RME

15

User’s Guide

OctaMic II

Inputs and Outputs

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Summary of Contents for OctaMic II

Page 1: ...OctaMic II Professional Mic Line Preamp and AD Converter 8 Channel Microphone Line Preamp with Line Outputs 8 Channel Analog to AES ADAT Interface 24 Bit 192 kHz Digital Audio 24 Bit Interface Steady...

Page 2: ...ADAT Optical 14 Inputs and Outputs 10 Analog Inputs Outputs 10 1 Mic Line In 16 10 2 Line Out 17 11 Digital Outputs 11 1 AES EBU 18 11 2 ADAT Optical 19 12 Word Clock 12 1 Technical Description and Ba...

Page 3: ...ture and water from entering the device Never leave a pot with liquid on top of the device Do not use this product near water i e swimming pool bathtub or wet basement Danger of condensation inside do...

Page 4: ...4 User s Guide OctaMic II RME...

Page 5: ...User s Guide OctaMic II RME 5 User s Guide OctaMic II General...

Page 6: ...2 Package Contents Please check that your OctaMic II package contains each of the following OctaMic II Power cord Manual 1 optical cable TOSLINK 2 m 3 Brief Description and Characteristics 8 balanced...

Page 7: ...O25MXLR4M4F1PRO Digital Breakout Cable Pro AES EBU 25 pin D sub to 4 x XLR male 4 x XLR female 1m BO25MXLR4M4F3PRO Digital Breakout Cable Pro AES EBU 25 pin D sub to 4 x XLR male 4 x XLR female 3 m BO...

Page 8: ...business drawn up by Audio AG apply at all times 6 Appendix RME news and further information can be found on our website http www rme audio com Distributor Audio AG Am Pfanderling 60 D 85778 Haimhaus...

Page 9: ...er is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Conne...

Page 10: ...10 User s Guide OctaMic II RME...

Page 11: ...User s Guide OctaMic II RME 11 User s Guide OctaMic II Usage and Operation...

Page 12: ...que is advantageous for the connected microphone as well as the OctaMic II The phantom power of the OctaMic II is short circuit proof With a maximum load on all eight chan nels the internal voltage do...

Page 13: ...ES D sub or word clock BNC 2 Clock internal Master or external Slave 3 Internal Clock 44 1 kHz or 48 kHz 4 Activates Double Speed Mode 5 Activates Quad Speed Mode 6 AES output state Professional or Co...

Page 14: ...ernal termination 75 Ohms The switch is found beside the BNC socket Use a small pencil or similar and carefully push the blue switch so that it snaps into its lock position Another push will release i...

Page 15: ...User s Guide OctaMic II RME 15 User s Guide OctaMic II Inputs and Outputs...

Page 16: ...of con denser microphones The usage of a hi end integrated circuit That 1510 guarantees out standing sound quality lowest THD and maximum Signal to Noise ratio in any gain setting The OctaMic II s ove...

Page 17: ...g Reference Clip LED True Clip ADC Level Hi Gain 19 dBu 17 dBu 21 dBu 2 dBFS 4 dBu 13 dBu 11 dBu 15 dBu 2 dBFS 10 dBV 2 dBV 0 dBV 4 dBV 2 dBFS This also means that the CLIP LED lights up 4 dB before t...

Page 18: ...itch 6 to Professional or Consumer If AES PRO is chosen the out put level is almost 5V If CON Consumer is chosen the output signal will have a channel status compatible to SPDIF and the output level w...

Page 19: ...44 1 48 kHz Therefore the sample clock at the ADAT outputs is only half the frequency of the AES outputs As interesting as this is you don t need to think about it 96 kHz capable ADAT hardware like al...

Page 20: ...rd clock is not only the great problem solver it also has some disadvantages The word clock is based on a fraction of the really needed clock For example SPDIF 44 1 kHz word clock a simple square wave...

Page 21: ...he input only works from 2 8 Volts and above does not function correctly al ready after 3 meter cable length So it is not astonishing that because of the higher voltage word clock networks are in some...

Page 22: ...22 User s Guide OctaMic II RME...

Page 23: ...User s Guide OctaMic II RME 23 User s Guide OctaMic II Technical Reference...

Page 24: ...ut level XLR Gain 60 dB 40 dBu Maximum input level TRS Gain 6 dB 21 dBu Maximum input level TRS Gain 60 dB 33 dBu Line Out 1 8 Maximum output level 21 dBu Output 6 3 mm TRS stereo jack servo balanced...

Page 25: ...ional according to AES3 1992 Amendment 4 Single Wire 4 x 2 channels 24 bit up to 192 kHz ADAT 2 x TOSLINK Standard 8 channels 24 bit up to 48 kHz S MUX 16 channels 24 bit 48 kHz equalling 8 channels 2...

Page 26: ...cable please make sure that the connectors are clearly labelled with Tascam and Ya maha The cable can only be used when the Tascam side is connected to a Tascam connector and the Yamaha side is connec...

Page 27: ...connections with no loss in level For this to work pins 3 and 1 GND have to be connected inside the XLR con nector TRS jacks analog input and output The stereo TRS jacks of the analog inputs and outp...

Page 28: ...ta rate and hence twice the sample rate A stereo signal subsequently requires two AES EBU ports The Double Wire method is an industry standard today however it has a number of different names like Dua...

Page 29: ...ork with double sample rate It was then possible to transmit two channels of 96 kHz data via one AES EBU port But Double Wire is still far from being dead On one hand there are still many devices whic...

Page 30: ...principle because the audio information is stored in the same place in the data stream However there are blocks of additional information which are different for both standards In the table the meanin...

Page 31: ...ange of 28 kHz up to 200 kHz SteadyClock has originally been de veloped to gain a stable and clean clock from the heavily jittery MADI data signal The embedded MADI clock suffers from about 80 ns jitt...

Page 32: ...32 User s Guide OctaMic II RME 15 Block Diagram...

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