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Copland DRC205 User Manual

Digital room correction
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Summary of Contents for Copland DRC205

  • Page 2 The accessories are placed in the bottom of the packaging materials. Before placing the unit in your home read this carefully. Place the DRC205 on a stable platform in a normally dry environment. Do not subject the DRC205 to high mechanical vibration.
  • Page 3 ( ' ' To be acquainted with the DRC205, please read the following descriptions of the connections on the unit and view the positions of connections below. The AC power cord is plugged here. * ' & The correct mains operating voltage is printed just below the mains inlet.
  • Page 4 The computer does not need to be connected to the unit during normal playback operation. However, the Windows compatible PC/computer can be used to control the DRC205 if desired. (This is an advantage during manual set-up of P1 and P2 user programmes.) Contact your dealer in case your PC/Computer is not Windows 98/ME/2000/XP compatible and ask for potential updates of the DRC205 unit for support of non-compatible computers.
  • Page 5 [Position 4] should be used in audio systems featuring high-quality bookshelf or general- purpose loudspeakers! Copland recommends that [Position 4] is used in audio systems featuring small or general- purpose woofers or similar standard subwoofers! Important note: The [High-Pass] selector is set DEFAULT at [Position 3] !
  • Page 6 & Connect the DRC205 [Inputs] to the [Outputs] of the TAPE MONITOR connection of your amplifier. Alternative operation : If no TAPE MONITOR is available: Connect the DRC205 inputs to the outputs of a line signal source (e.g. a CD-Player).
  • Page 7 The following description of the front panel may help you locating the operation features of the unit. Note that all functions are disabled on the front panel when the DRC205 is operated via a Windows compatible PC/Computer! By pressing this button, the unit will be switched between the 6 (six) different '4 &...
  • Page 8 In case the [Setup] key is pressed indivertible, then a safety feature in the unit avoid that test- and measurements is started unless the button is continuously pressed for more than 3 (three) seconds. ( +( .7 Playback modes A1-A4 are predefined sound characteristics. The playback modes determine the tonal balance of the compensated audio system.
  • Page 9 Pre-programmed playback mode A2 changes the overall sound characteristics to the & below frequency response. The basic characteristics of A2 is that the acoustics energy in the bass range which by nature is boosted by room reflections is re-created, however without the room acoustics problems negative impact.
  • Page 10 Pre-programmed playback mode A3 changes the overall sound characteristics to the + & below frequency response. The basic characteristic of A3 is resulting in a linear frequency response with a modest tilt. The tilt secures that the tonal balance after compensation is natural.
  • Page 11 ' 6 ( Playback modes P1-P2 are user-defined sound characteristics. On P1-P2 you can store your own playback modes for Copland DRC205. This means that you may create your own specific playback mode according to your personal taste. Default setting by delivery ex. Copland for P1-P2 is similar to A1 = Flat linear frequency response similar to the classic technical reference.
  • Page 12 The following describe the analysis and calibration when operated directly from the front panel of the Copland DRC205. ( For operation with an external PC/Computer – please refer to “ Operating Copland DRC205 from a PC/computer” ).
  • Page 13 Explanation: During the room analysis and calibration process, the Copland DRC205 signals the status of the process by flashing the LED’s on the front panel. Detailed explanation follows where relevant. Important note: Remember to turn the volume control of the amplifier (or pre-...
  • Page 14 PC/Computer. - !/ )' 5 ' Included with the DRC205 is a graphical user interface, which can be installed from the accompanying CD-ROM. By installation on a standard Windows 98/ME/2000/XP compatible PC/computer, the DRC205 may be fully operated from the PC/computer and an advanced equalizer can be accessed, allowing the user to adjust the frequency response of the system and to study the frequency curves before and after compensation.
  • Page 15 Before being able to operate the Copland DRC205 via a computer the software on the following CD-ROM must be installed on a Windows 98/ME/2000/XP compatible PC/computer. Connect the USB cable to the [Computer] connector on the rear panel of the Copland DRC205 and to a USB connector on your PC/computer.
  • Page 16 The software installation will reply with the following screen on your PC/computer monitor: Select your preferred language on the menu! Note: On this revision of the Copland DRC205 only ENGLISH language is available. After having selected your preferred language, please press [Next >] on the above menu. The following menu will appear on your PC/computer monitor.
  • Page 17 If you choose to install the Copland DRC205 Windows XP software to your PC/computer, then installation software suggests installing the software in C:\programs\DRC205 as default software directory. Note: If so desired, you may install the Copland DRC205 in another directory by inputting the desired directory on the below screen.
  • Page 18 After having selected the destination for the installed software, the following screen appears after pressing [Next >] to continue the installation process: The installation software suggests setting up a program folder called “DRC205” which will contain access to the Copland DRC205 software.
  • Page 19 Copland DRC205 software on your PC/computer. Please select [Yes] or [No] for setting up icon’s on your desktop. Note: Quick Launch Toolbar is not available on present revision of the Copland DRC205 installation software. Click [Next >] to continue the software installation.
  • Page 20 Now the installation is ready to copy files to your PC/computer, and the following screen is displayed on your monitor. Press [Next >] to copy and install the Copland DRC205 software on your PC/computer. Press [Cancel] if you do not wish to copy and install the software.
  • Page 21 The Copland DRC205 must be connected and operational! If the Copland DRC205 is not connected to the PC/computer or is not powered up, the software will display a warning of no connection to the Copland DRC205. Be sure that the Copland DRC205 is connected and powered up.
  • Page 22 MODEM) on a COM-port, this may cause the software automatic COM-port identification to fail. In case that your Copland DRC205 is correctly connected, powered up and the software is installed and the above warning appears, then you should change COM-port settings on the Copland Control panel software.
  • Page 23 ' * )' ; $ % ' After installation of the Copland DRC205 Windows XP software, the unit may be fully operated from a PC/computer. Advanced features and functions are available when operating the Copland DRC205 from a Windows compatible XP PC/computer.
  • Page 24 Is the gain/attenuation slider (control) for each filter block. The function is similar to & the gain control of a classical equalizer. (However, the function of the Copland DRC205 is significantly more sophisticated than a classical equalizer – even though the operation is just as simple in regard to setting up a Target Curve for your stereo system.)
  • Page 25 Available storage for personal Target Curves. Your own Target Curves may be & stores in the Copland DRC205 as P1 or P2. (A1-A4 is defined by Copland, and may also be selected for playback from the Copland Target Curve 1.0 software when operated from a PC/computer in the same way as P1-P2.)
  • Page 26 ': Observe the same guidelines for measurement and analysis as described for direct operation on the front panel of the Copland DRC205. Pressing [Zoom-Out] button will reset the graphs in the Display area to default $ -! & zoom (1:1).
  • Page 27 On the Bi Quad graph the resulting response of the Peaking Filter may be observed, and the resulting Target Curve may be observed on the Target graph. An example of a 1000 Hertz Peaking Filter with Q = 0.5 and Gain set at +5 dB can be seen below: Shelving Low Filter The Shelving Low filter increases or decreases the SPL on lower frequencies (lower than Fc).
  • Page 28 " " : Be careful when applying gain to the system as this may result in overloading of the Copland DRC205, overloading your amplifier and overloading your loudspeaker. Copland has already increased insufficient SPL by the automatic DDRC algorithm! On the Bi Quad graph the resulting response of the Shelving Low Filter may be observed, and the resulting Target Curve may be observed on the Target graph.
  • Page 29 Shelving High Filter The Shelving High filter increases or decreases the SPL on higher frequencies (higher than Fc). The Shelving High may be used instead of the Shelving Low to increase the bass level – by decreasing the high range (treble) SPL. Hereby no risk of overloading your amplifier or loudspeakers may occur.
  • Page 30 Low pass Filter The Low pass filter will roll-off frequencies above the selected Fc, and it used to limit the upper frequency of a system. Important note: Respect the guidelines provided in the previous section for optimum usage and results. To use the Low pass filter, select Low pass in Filtertype.
  • Page 31 High pass Filter The High pass filter will roll-off frequencies above the selected Fc, and it used to limit the lower frequency of a system. Otherwise similar to the Low pass filter. An example of a 1000 Hertz Shelving High pass Filter with Q = 1.5:...
  • Page 32 Compensate for the reduced SPL by turning upwards on the volume control of your amplifier instead! Storing Target Curves to Copland DRC205 : Target Curves can be stored by pressing [STORE] in the Control panel, hereby the target curve is send to P1 when P1 is selected – or to P2 when P2 is selected.
  • Page 33 In case you wants to uninstall the Copland Control panel software, you must enter the directory where the program files are stored (default is C:\programs\DRC205) and double-click the UNINSTALL.EXE. The following warning appears: Press [Yes] for uninstalling all Copland DRC205 software from the PC/computer.
  • Page 34 To run the upgrade software select DRC_205_UPDATE.EXE and run the software. Follow the recommendations during the upgrade process. The present software dialog box appears as follows: Make sure that the COM-port is the correct one (must be the same as when the Copland DRC205 is operated by a PC/computer).
  • Page 35 Copland DRC205. In case that the power is switched off during a firmware update, the Copland DRC205 may suffer severe damage! The DRC205 is built for a long lifetime, and no special care needs to be taken apart from what is already described.
  • Page 36 +/- 12% Dimensions 430(W) 110(H) 390(D) mm. Shipping weight 10 Kg. DDRC Engine Copland specific DDRC engine. Designed based upon Copland Specifications for the Copland DRC205 (Some functions are different from the standard Dynaton DDRC engine due to specific Copland requirements)