User manual RANE RPM 26Z

[. . . ] Launch the Drag Net application and follow the steps to create a new project and new RPM 26z device configuration. Click the Configure Hardware IP shortcut and follow the instructions to set the unit's IP address to be compatible with your computer's Network settings. Tip: If you aren't sure what IP to use, try the address 192. 168. 69. 69 and subnet 255. 255. 255. 0. A device name and IP address should appear under the Live folder in the Project window. [. . . ] 7 10Base-T jack accepts a standard Ethernet cable with a RJ-45 connector. Holding this button while applying power puts the unit into a codeload mode for updating firmware. Manual-2 Audio Connections For each Input or Output Euroblock connector: · Connect the (positive) audio line to the `+' terminal. · Connect the (negative) audio line to the `­' terminal. For those installations where the RPM 26z's internal shieldto-chassis connection causes interference, connect each shield directly to the chassis PEM nut located above each Euroblock connector, keeping the shield wrapped around the audio conductors as much as possible. For optimum Electromagnetic Interference (EMI) immunity, connect the shields at both ends of the cable. See the RaneNote "Sound System Interconnection" for more information on system connections and proper grounding practices. The second stage contains a Digital Trim control located immediately after the A/D converter. Input Clipping If you've set the Analog Gain so the input stage is not clipping, it is not possible to clip the A/D converter, since there is no additional gain between the initial input stage and the A/D converter. The Digital Trim control, located after the A/D converter, can be set to clip the signal to your heart's content, so adjusting this trim to provide the hottest signal to the DSPs without clipping is the most important step when setting up gain structure. For this reason, a dedicated meter displaying the signal level being passed to the DSPs is provided in each Analog Input block. If the DSPs are working with a clipped signal, the audio is (as expected) distorted and none too pretty, but it is not a drastic, damaging sound. And while it's technically possible to write a DSP algorithm to emulate the glorious clipping distortion of vacuum tubes, it's not particularly useful for an installed sound system, where the DSP power could be put to better use removing that annoying 500 Hz feedback from the podium mic. Plus, they don't yet make DSP chips with gold-plated substrates for those celestial highs and that moist, supple midrange. Analog Output Stage Each analog output also uses a two-stage gain approach, which differs slightly from that of the analog input stage. The first stage is a Digital Trim control located immediately before the D/A converter. The second stage is an analog trim control located immediately after the D/A converter. Attenuation is handled in the analog domain, while boosting (when the incoming digital signal is low) is handled in the digital domain. Boosting and attenuating using this two-stage approach helps maintain the RPM 26z's excellent noise performance. Digital (AES3) Input AES3 is a popular 2-channel (stereo) digital audio interface commonly found on professional digital audio equipment (digital mixers, DAT machines, etc. ). Each channel of the AES3 digital stream is treated independently within the RPM 26z. See the RaneNote "Interfacing AES3 and S/PDIF", available from Rane's web site (www. rane. com/library. html), for more information about interfacing consumer S/PDIF gear to the professional AES3 standard. Use the AES3 Input to: · Connect from the AES3 Ouput of an RPM 88/44/22. · Connect to an external A/D converter, effectively adding two more analog inputs. [. . . ] Combinations of Preset switches & voltage Level "pots" are possible as long as combined, they do not exceed the eight pins provided. Since you can Group any or all Level blocks in Drag Net's Remote Map, it's much easier to implement a stereo level control since the Drag Net device is burdened with the task of tracking many Levels. You can use this to your advantage when using VIP pins to adjust multiple zones or levels. Since you can place the Level block anywhere within the Drag Net Processing Map, you can Group Level blocks at the input, at the output or anywhere in-between -- just place the Level block where you want it. [. . . ]