User manual BLUE SKY SUB 8 UNIVERSAL

[. . . ] Blue Sky International 70 Sea Lane Farmingdale, NY 11735 www. abluesky. com 100-Watt compact subwoofer with adaptive x-over Blue Sky | SUB 8 Universal Owner's Manual Version 1. A | December 27, 2004 Contents Important 1 2 3 4 5 6 7 8 9 10 11 12 Safety Instructions _ __ __ __ __ __ __ __ __ __ _ Page 3 SUB 8 Universal Introduction _ __ __ __ __ __ _ Page 4 Important notes about the SUB 8 Universal and this Owner's manual _ __ __ __ __ __ __ __ __ __ __ _ Page 4 SUB 8 Universal - What is included?_ __ __ __ _ Page 4 Quick Setup / with filter setting instructions _ _ Page 5 System Signal Connections _ __ __ __ __ __ __ _ Page 6 A Tour of the Amplifier and I/O _ __ __ __ __ _ Page 7 Expanded Calibration Guide _ __ __ __ __ __ _ Page 8 Subwoofer Placement Guide _ __ __ __ __ __ _ Page 9 Technical Information _ __ __ __ __ __ __ __ __ _ Page 10 SUB 8 Universal Cabinet Dimensions _ __ __ __ _ Page 11 Factory Service Instructions _ __ __ __ __ __ __ _ Page 12 General Contact Details _ __ __ __ __ __ __ __ _ Page 13 Contents 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. [. . . ] Only use the supplied power cord or an IEC approved power cord with a safety ground pin. AMPLIFIER HEATSINK- The heatsink provides essential cooling to the amplifier inside the SUB 8 Universal. Please ensure that proper air circulation is available for proper cooling. VARIABLE CUTOFF FREQUENCY CONTROL KNOBS - These controls are for adjusting the dual 24dB per octave low and highpass filters. The cutoff frequency can be adjusted from 50Hz to 160Hz. It is recommended that the SUB 8 Universal filters be set one octave above the natural roll off of the nearfield monitors that are being used with the SUB 8 Universal. To activate these variable filters, the VARIABLE / SAT 5 FILTER SWITCH - must be in the up position (VARIABLE). For more information see item 10 on page 4 [Quick Setup / with universal filter instructions]. SUB GAIN - This knob controls the input sensitivity of the subwoofer amplifier only. When set to the reference position a 100mV signal at the input equals 90dB output at a meter. SUB Out - This balanced XLR output can feed additional subwoofers for increased bass performance and should be connected to the SUB IN of an additional Blue Sky SUB 8 / SUB 8 Universal. The output contains the summed low passed subwoofer output and the SUB IN audio. SUB IN - This XLR input can be connected to either the subwoofer output of an external bass-management controller, or the "daisychain" output of a SUB 8 / SUB 8 Universal. This input is fullbandwidth (up to approximately 200Hz) and does not use a low pass filter. Page 7 7. Expanded Calibration Guide move the output faders. Step 3 Step 4 Step 5 Mute everything and make sure the 1kHz tone is OFF . Now that the system has been electrically calibrated turn ON your 2. 1 System (SUB 8 Universal & nearfield monitors). Assign the 500-2. 5kHz pink noise signal to the left channel only. Make sure there is nothing coming from the right channel (or any other channels). Because this signal is bandwidth limited, you don't have to worry about turning the sub off. There are two methods of setting the levels. If you have a master monitor level control, you can set the sat gain control at reference and then adjust the monitor gain control for 85 dBC. Then mark the monitor level as your reference position. [. . . ] SUB 8 Universal Cabinet Dimensions Page 11 13. 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. (Service for Blue Sky products outside the United States can be obtained through local dealers or distributors. ) If your monitor needs service, follow these instructions: 1. [. . . ]