User manual BLUE SKY BMC

[. . . ] bass management controller bass management controller BMC owner's manual blue sky | BMC Owner's Manual for 5. 1 Applications Issue 1, rev 2 Contents Important 1 2 3 4 5 6 7 8 9 10 11 12 13 Safety Instructions Philosophy and Introduction A Tour of the BMC Main I/O Unit A Tour of the BMC Remote System & Software Overview 5. 1 Speaker Placement 5. 1 System Wiring Diagram 5. 1 System Calibration Additional Setup Information Cable and Wiring Information Technical Information Product Dimensions Factory Service Instructions Contact Details Page 3 Page 4 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 10 Page 11 Page 11 Page 12 Page 12 Page 2 blue sky | BMC Owner's Manual for 5. 1 Applications Issue 1, rev 2 Safety Instructions 1. READ INSTRUCTIONS - Read all safety and operating instructions before operating this product. RETAIN INSTRUCTIONS - Retain these safety and operating instructions for future reference. HEED WARNINGS - Follow all warnings on this product and in the operating instructions. FOLLOW INSTRUCTIONS - Follow all operating and use instructions. [. . . ] The power LED on the front of the I/O box(es) should be lit. B: Within the I/O box(es) the output relays will click on. C: The LCD will display the current software version for 5 seconds. "Blue Sky Ver REV 1. 0" D: After the system has been fully activated the system will go into the mute mode and the display will show the following message. This could be under the console, behind the console, etc. Placing the subwoofer closer to a corner or wall will increase acoustic efficiency and may yield better acoustic response in many situations. However, because of the many variables that relate to "in-room" subwoofer performance, we highly recommend experimenting with subwoofer placement. Center of the woofer Mid-point of the woofer and tweeter Speaker placement recommendations, with regard to these types of installations, vary greatly on the end users' goals and surround philosophy. For more specific information regarding your particular installation, please do not hesitate to contact Blue Sky directly. www. abluesky. com MONITORING HEIGHT RECOMMENDATIONS Page 7 blue sky | BMC Owner's Manual for 5. 1 Applications Issue 1, rev 2 6. System Wiring Diagram 5. 1 Channel Output From Console or Workstation bass management controller 5. 1 Channel Output From the BMC going to the monitoring system. NOTE: Connect the Subwoofer output to the DIRECT input on the subwoofer. SUB e ot le em Cab R C ol BM ntr Co C L R LS RS 5. 1 Channel Monitoring System Page 8 blue sky | BMC Owner's Manual for 5. 1 Applications Issue 1, rev 2 7. 5. 1 System Calibration 85 5. 1 Channel Calibrated System Response 80 The following system calibration instructions are for a bass-managed speaker system, such as Blue Sky's ProDesk or Sky System One. Step 1 "BASS MANAGER - ON"- Press SELECT three times, or until the display reads "SETUP MENU". Press the UP or DOWN ARROW keys until the display reads "BASS MANAGER - ON". If the display reads "BASS MANAGER - OFF", press YES To turn it on. Now press CANCEL until you have backed out of all the menus. STEP 2 "MUTE THE SUBWOOFER" - Press the SELECT once, or until the display reads "MUTE CHANNELS". Press the UP or DOWN ARROW until you get to the subwoofer channel and then press YES . Now press CANCEL until you have backed out of all the menus. STEP 3 "FINDING YOUR REFERENCE LEVEL" - Turn the gain on the remote to -50dB. Patch a pink noise generator, tape or other source with at least 60 seconds of 0dBVU Pink Noise into your console or workstation. If you are using a digital source, the test signal should measure -20dB FS (0dB FS = Full Scale Digital). Assign the test signal to the center channel only. Confirm that all your speakers are turned on and that the gain on each speaker is set to a moderate level. [. . . ] Technical Information Input Impedance Common Mode Rejection Ratio Maximum Input Level (all inputs) Maximum Output Level Output Impedance Nominal max gain Gain trim range Signal to noise ratio Output noise THD + Noise (0dB of gain) Frequency Response 20k Ohms balanced 40dB typical @60Hz +24dBu balanced +24dBu balanced 200 Ohms balanced 0 dB +/- 6dB > 105dB -85dBu (20 to 20kHz) . 002% @ 1kHz @ +10dBu 20 Hz to 20KHz +/- . 25dB (Volume Control Mode) 2nd order Linkwitz-Riley 80Hz 4th order Linkwitz80Hz BMC BLOCK DIAGRAM 1 of 5 input channels CHANNEL IN input DIGITALLY CONTROL ANALOG POT 12 dB / OCT 80 HZ HIGH PASS BYPASS output CHANNEL OUT other channels BASS SUM 24 dB / OCT 80 HZ LOW PASS High-Pass Filter type High-Pass Filter Cutoff Low-Pass Filter Type Riley Low-Pass Cutoff LFE Input Gain Low-Pass Filter Input power REMOTE CONTROL MICRO CONTROLLER LFE IN input 1 / 10x gain INPUT SELECT DIGITALLY CONTROL ANALOG POT output LFE OUT 0dB / +10dB Selectable 120Hz 120 VAC 60HZ 240 VAC 50/60HZ 15-Watts (Voltage set at the factory) 24 dB / OCT 120 HZ LOW PASS 11. Product Dimensions 5. 0" 17. 35" 6. 20" 6. 01" 8. 00" bass management controller 1. 75" 19. 00" 2. 6" 1. 4" Page 11 blue sky | BMC Owner's Manual for 5. 1 Applications Issue 1, rev 2 12. Factory Service Instructions Service for the U. S. versions of Blue Sky products is available only from our authorized distributor, Group One Ltd. , located in Farmingdale, New York. [. . . ]