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RME Audio ADI-8 QS User manual

Manual is about: Professional 8-Channel AD/DA Converter Reference Low Latency Conversion 8-Channel Analog <> AES / ADAT Interface Optional 64-Channel MADI Interface 24 Bit / 192 kHz Digital Audio MIDI Remote Control

Summary of ADI-8 QS

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    User’s guide adi-8 qs the professional’s converter solution professional 8-channel ad/da converter reference low latency conversion 8-channel analog aes / adat interface optional 64-channel madi interface 24 bit / 192 khz digital audio midi remote control 24 bit interface totalremote ™ i64 option sl...

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    2 user’s guide adi-8 qs © rme important safety instructions ..................................4 general 1 introduction ...............................................................6 2 package contents .....................................................6 3 brief description and characteristics......

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    User’s guide adi-8 qs © rme 3 inputs and outputs 11 analog inputs / outputs 11.1 line in .................................................................. 28 11.2 line out ............................................................... 29 12 digital inputs / outputs 12.1 aes / ebu ....................

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    4 user’s guide adi-8 qs © rme important safety instructions attention! Do not open chassis – risk of electric shock the unit has non-isolated live parts inside. No user serviceable parts inside. Refer service to qualified service personnel. Mains • the device must be earthed – never use it without p...

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    User’s guide adi-8 qs © rme 5 user’s guide adi-8 qs general.

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    6 user’s guide adi-8 qs © rme 1. Introduction rme's adi-8 qs is an 8-channel high-end ad/da converter with a truly unique feature set. The device combines excellent analog circuit design with the latest generation of outstanding low latency ad/da converter chips. Along with its integrated steadycloc...

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    User’s guide adi-8 qs © rme 7 4. First usage – quick start 4.1 controls - connectors - displays the front of the adi-8 qs features 16 led level meters, nine select keys, one rotary encoder, and 30 leds providing a detailed status display. The analog input sensitivity can be changed in the area input...

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    8 user’s guide adi-8 qs © rme the rear panel of the adi-8 qs has eight analog inputs, eight analog outputs, mains power, a connector for the included hardware remote, midi i/o, word clock i/o, the i64 option slot, and all digital inputs and outputs (aes/adat). Analog inputs: eight balanced line inpu...

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    User’s guide adi-8 qs © rme 9 4.2 quick start after connection of all cables and power-on of the device, the configuration of the adi-8 qs begins in the clock section. Choose a clock source and a sample rate. Connect the trs-jacks or the d-sub connector with the analog signal source. Change the inpu...

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    10 user’s guide adi-8 qs © rme 5. Accessories rme offers several optional components for the adi-8 qs: part number description ok0050 optical cable, toslink, 0.5 m (1.7 ft) ok0100 optical cable, toslink, 1 m (3.3 ft) ok0200 optical cable, toslink, 2 m (6.6 ft) ok0300 optical cable, toslink, 3 m (9.9...

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    User’s guide adi-8 qs © rme 11 6. Warranty each individual adi-8 qs undergoes comprehensive quality control and a complete test at imm before shipping. The usage of high grade components allows us to offer a full two year war- ranty. We accept a copy of the sales receipt as valid warranty legitimati...

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    12 user’s guide adi-8 qs © rme ce / fcc compliance ce this device has been tested and found to comply with the limits of the european council direc- tive on the approximation of the laws of the member states relating to electromagnetic compati- bility according to rl89/336/ewg and rl73/23/ewg. Fcc t...

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    User’s guide adi-8 qs © rme 13 user’s guide adi-8 qs usage and operation.

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    14 user’s guide adi-8 qs © rme 8. Front panel controls 8.1 input in the input area, the select key causes a change of the analog input sensitivity, referenced to digital full scale level (0 dbfs) of the ad- converters. The choices are: +4.2 dbu (-10 dbv compatible), +13 dbu, +19 dbu and +24 dbu. As ...

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    User’s guide adi-8 qs © rme 15 8.3 input state the 8 level meter of the input state show the digital value (dbfs) of the input level per channel. The level data incorporate input trim and digital limiter. The red led ovr is lit 0.2 db before full scale level (-0.2 dbfs). With activated meter gr auto...

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    16 user’s guide adi-8 qs © rme 44.1, 48 activates the internal clock at 44.1 khz or 48 khz. Ds, qs with the ds led additionally lit, the sample rate will be 88.2 or 96 khz, with qs lit it will be 176.4 or 192 khz. A selection of ds and qs is also possible when using external clock (slave). If the ad...

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    User’s guide adi-8 qs © rme 17 8.10 output in the output area, the select key causes a change of the analog output level, referenced to digital full scale level (0 dbfs) of the da-converters. The choices are: +4.2 dbu (-10 dbv compatible), +13 dbu, +19 dbu and +24 dbu. As the adaptation is performed...

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    18 user’s guide adi-8 qs © rme when all leds of a column are turned off, the corresponding attenuation is: channel 8 -6 db channel 5 -28 db channel 2 -78 db channel 7 -12 db channel 4 -40 db no led mute channel 6 -18 db channel 3 -54 db when changing the global output level the individual settings o...

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    User’s guide adi-8 qs © rme 19 when several adi-8 qs, micstasy or adi-642 are connected via madi, auto id normally takes care of the channel assignment (see chapter 9.7, auto id). In special cases, it may be desirable to set the id manually, e.G. If the first device in a madi chain does not support ...

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    20 user’s guide adi-8 qs © rme units delay delay ds delay qs dc dc ds dc qs 2 3 6 12 21 18 12 3 6 12 - 21 18 - 4 9 18 - 21 18 - 5 12 - - 21 - - 6 15 - - 21 - - 7 18 - - 21 - - 8 21 - - 21 - - as shown in the table, activating dc causes a constant delay of 21 samples in single speed, no matter how ma...

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    User’s guide adi-8 qs © rme 21 9.11 trim enable (te) default: on available settings: on, off the settings of the level calibration per channel, input trim and output trim (see chapter 9.3 and 9.4), can be deactivated globally. The gain is then set to 0 db. The individual settings are not lost, chang...

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    22 user’s guide adi-8 qs © rme 9.15 digital to digital (dd) default: direct available settings: direct, effects the function digital to digital can operate in two ways. In mode direct the digital input signal is sent with bit-accuracy to the digital outputs. In mode effects the digital input signal ...

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    User’s guide adi-8 qs © rme 23 10. Remote control 10.1 hardware remote the included hardware remote offers direct access to the most important functions needed in a typical daw workplace: • turning the vol knob changes the volume (global output level) • pushing the vol knob activates dim (global out...

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    24 user’s guide adi-8 qs © rme unlike other madi-based devices from rme, the adi-8 qs is no bi-directional midi to madi converter, because only one direction is available for the transmission. The block diagram shows the signal flow in a hdsp madi-based remote control system. Midi commands from a so...

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    User’s guide adi-8 qs © rme 25 via midi remote control, all front panel controls of the adi-8 qs can be locked (lock keys). An exception is the remote key. In off-state lock keys is deactivated. Therefore a locking of all the controls can be revoked directly at the unit at any time. The software mid...

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    26 user’s guide adi-8 qs © rme.

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    User’s guide adi-8 qs © rme 27 user’s guide adi-8 qs inputs and outputs.

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    28 user’s guide adi-8 qs © rme 11. Analog inputs / outputs 11.1 line in the adi-8 qs rear has 8 balanced line inputs, provided by 1/4" trs and a 25-pin d-sub connector. Both are internally connected, so can not be used at the same time. The electronic input stage is built in a servo balanced design ...

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    User’s guide adi-8 qs © rme 29 11.2 line out the adi-8 qs has 8 balanced line outputs on the rear, provided by 1/4" trs and a 25-pin d-sub connector. They have their own output drivers respectively and can there- fore – in contrary to the inputs – be used simultaneously. The electronic output stage ...

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    30 user’s guide adi-8 qs © rme 12. Digital inputs / outputs 12.1 aes/ebu the four aes/ebu inputs and outputs are provided on the rear of the adi-8 qs via a 25-pin d- sub connector with tascam pinout (also used by digidesign). A digital breakout cable will pro- vide 4 male and 4 female xlr connectors...

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    User’s guide adi-8 qs © rme 31 12.2 adat optical the adi-8 qs provides two digital inputs and outputs in adat optical format. Using sample rates up to 48 khz only the port labeled main is relevant for operation. Higher sample rates than 48 khz are realized by sample multiplexing. When using more tha...

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    32 user’s guide adi-8 qs © rme 12.3 i64 madi card the i64 madi card provides the adi-8 qs with a 64-channel madi input and output. Coaxial and optical output operate simultaneously and deliver the same data. The id determines which madi channels the adi-8 qs will use (see chapter 9.5, id). The madi ...

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    User’s guide adi-8 qs © rme 33 12.4 differences serial madi with i64 madi card and adi-642 i64 madi card: activate auto id in the first unit (id of the master can be changed). All following units become slave, get a consecutive id, and with this the according channel routing. If de- sired, delay com...

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    34 user’s guide adi-8 qs © rme 13. Word clock 13.1 word clock input and output input the adi-8 qs transformer isolated word clock input is active when wck is chosen in the clock section. The signal at the bnc input can be single, double or quad speed, the adi-8 qs auto- matically adapts to it. As so...

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    User’s guide adi-8 qs © rme 35 13.2 operation and technical background in the analog domain one can connect any device to another device, a synchronization is not necessary. Digital audio is different. It uses a clock, the sample frequency. The signal can only be processed and transmitted when all p...

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    36 user’s guide adi-8 qs © rme 13.3 cabling and termination word clock signals are usually distributed in the form of a network, split with bnc t-adapters and terminated with resistors. We recommend using off-the-shelf bnc cables to connect all devices, as this type of cable is used for most compute...

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    User’s guide adi-8 qs © rme 37 14. Midi the adi-8 qs has a standard midi input and output, a 5-pin din jack each. The midi i/o is used for: • remote control of the adi-8 qs, see chapter 10.2 • transmission of midi data and remote control commands over madi, in case the optional i64 madi card has bee...

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    38 user’s guide adi-8 qs © rme.

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    User’s guide adi-8 qs © rme 39 user’s guide adi-8 qs technical reference.

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    40 user’s guide adi-8 qs © rme 15. Technical specifications 15.1 analog line in 1-8, trs/d-sub • input: 6.3 mm trs jack and d-sub 25-pin, servo-balanced • input impedance: 10 kohm • input sensitivity switchable +24 dbu, +19 dbu, +13 dbu, +4.2 dbu @ 0 dbfs analog limiter • maximum analog input level ...

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    User’s guide adi-8 qs © rme 41 15.2 digital inputs aes/ebu • 4 x 25-pin d-sub, transformer-balanced, galvanically isolated, according to aes3-1992 • high-sensitivity input stage ( • spdif compatible (iec 60958) • accepts consumer and professional format • lock range: 27 khz – 200 khz • jitter when s...

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    42 user’s guide adi-8 qs © rme 15.3 digital outputs aes/ebu • 4 x, transformer-balanced, galvanically isolated, according to aes3-1992 • output voltage professional 4.0 vpp • format professional according to aes3-1992 amendment 4 • single wire: 4 x 2 channels 24 bit, up to 192 khz adat • 2 x toslink...

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    User’s guide adi-8 qs © rme 43 15.6 general • power supply: internal switching psu, 100 - 240 v ac, 40 watts • typical power consumption: 23 watts • maximum power consumption: • dimensions including rack ears (wxhxd): 483 x 44 x 242 mm (19" x 1.73" x 9.5") • dimensions without rack ears/handles (wxh...

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    44 user’s guide adi-8 qs © rme 15.9 connector pinouts d-sub aes/ebu the d-sub connector provides four aes inputs and outputs. The pinout uses the widely spread tascam scheme, which is also used by digidesign. Tascam / digidesign: signal in 1/2+ in 1/2- in 3/4+ in 3/4- in 5/6+ in 5/6- in 7/8+ in 7/8-...

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    User’s guide adi-8 qs © rme 45 d-sub analog inputs / outputs the 25 pin d-sub connectors of analog input and output are wired according to the tascam scheme, as shown in this table: channel 1+ 1- 2+ 2- 3+ 3- 4+ 4- 5+ 5- 6+ 6- 7+ 7- 8+ 8- d-sub 24 12 10 23 21 9 7 20 18 6 4 17 15 3 1 14 gnd is connect...

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    46 user’s guide adi-8 qs © rme 16. Technical background 16.1 terminology single speed sample rate range originally used in digital audio. Typical applications are 32 khz (digital radio broadcast), 44.1 khz (cd), and 48 khz (dat). Double speed doubles the original sample rate range, in order to achie...

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    User’s guide adi-8 qs © rme 47 16.2 lock and synccheck digital signals consist of a carrier and the data. If a digital signal is applied to an input, the re- ceiver has to synchronize to the carrier clock in order to read the data correctly. To achieve this, the receiver uses a pll (phase locked loo...

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    48 user’s guide adi-8 qs © rme 16.3 latency and monitoring the term zero latency monitoring has been introduced by rme in 1998 for the digi96 series and describes the ability to pass-through the computer's input signal at the interface directly to the output. Since then, the idea behind has become o...

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    User’s guide adi-8 qs © rme 49 16.4 ds - double speed when activating the double speed mode the adi-8 qs operates at double sample rate. The internal clock 44.1 khz turns to 88.2 khz, 48 khz to 96 khz. The internal resolution is still 24 bit. Sample rates above 48 khz were not always taken for grant...

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    50 user’s guide adi-8 qs © rme 16.6 aes/ebu - spdif the most important electrical properties of 'aes' and 'spdif' can be seen in the table below. Aes/ebu is the professional balanced connection using xlr plugs. The standard is being set by the audio engineering society based on the aes3-1992. For th...

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    User’s guide adi-8 qs © rme 51 16.7 signal to noise ratio in ds- / qs-operation the outstanding signal to noise ratio of the adi-8 qs ad-converters can be verified even with- out expensive test equipment, by using record level meters of various software. But when acti- vating the ds and qs mode, the...

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    52 user’s guide adi-8 qs © rme 16.8 madi basics madi, the serial multichannel audio digital interface, has been defined already in 1989 as an extension of the existing aes3 standard following several manufacturers' wish. The format also known as aes/ebu, a balanced bi-phase signal, is limited to two...

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    User’s guide adi-8 qs © rme 53 16.9 steadyclock the steadyclock technology of the adi-8 qs guarantees an excellent performance in all clock modes. Its highly efficient jitter suppression refreshes and cleans up any clock signal, and pro- vides it as reference clock at the word clock output. Usually ...

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    54 user’s guide adi-8 qs © rme 17. Block diagram.

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    User’s guide adi-8 qs © rme 55 18. Midi implementation adi-8 qs 18.1 basic sysex format value name f0h sysex header 00h 20h 0dh miditemp manufacturer id 41h model id (adi-8 qs) 00h..7eh, 7fh bank number / device id (7fh = broadcast, all ids) mm message type nn parameter number (see table 1) oo data ...

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    56 user’s guide adi-8 qs © rme 18.3 table no. No. Name set val. Val. Resp. Data bytes 00h 0 output level x x 0..48 (see output level table) 01h 1 trim output ch. 1 x x 4..28, 0.5db steps, 4 = -6db, 16 = 0db, 28 = +6db 02h 2 trim output ch. 2 x x see above 03h 3 trim output ch. 3 x x see above 04h 4 ...

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    User’s guide adi-8 qs © rme 57 setup 1 msb / 7 0 6 msb / 2 analog input: 0 = +4dbu, 1 = +13dbu, 2 = +19dbu 5 1 analog input: 3 = +24dbu, 4 = dig. Input 4 lsb / 0 (analog input) 3 msb / 1 analog output: 0 = +4dbu, 1 = +13dbu, 2 lsb / 0 analog output: 2 = +19dbu, 3 = +24dbu 1 msb / 1 limiter mode: 0 =...

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    58 user’s guide adi-8 qs © rme lock / sync 1 msb / 7 0 6 0 5 0 4 0 (request only) 3 wck sync: 0 = no sync, 1 = sync (request only) 2 wck lock: 0 = unlock, 1 = lock (request only) 1 option sync: 0 = no sync, 1 = sync (request only) lsb / 0 option lock: 0 = unlock, 1 = lock lock / sync 2 msb / 7 0 6 0...