User manual BLUE SKY SUB 212

[. . . ] 400-Watt | Push-Pull active subwoofer SUB 212 Blue Sky International 70 Sea Lane, Farmingdale, New York, 11735 USA · T: +1 516 249 1399 · F +1 516 249 8870 www. abluesky. com SUB 212 USER MANUAL · CONTENTS Important 1 2 3 4 5 6 7 8 9 10 11 12 13 Safety Instructions Page 3 SUB 212 Introduction Page 4 Important Notes About the SUB 212 & This Manual Page 4 SUB 212 - What is included?Page 4 Quick 2. 1 System Setup Instructions Page 5 Page 6 System Signal Flow & Connections Expanded Calibration Guide Page 7 A Tour of the SUB 212 Amplifier & Electronics Page 8 & 9 Subwoofer Placement Guide Page 10 Technical Specifications Page 11 SUB 212 Cabinet Dimensions Page 12 Factory Service Instructions Page 13 General Contact Information Page 13 Recycling Information Page 13 Page 2 · User Manual - Contents SUB 212 USER MANUAL · 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. 12. 2. SERVICING - Do not attempt to service this product yourself. Opening or removing covers, including any over bottom or side speaker drivers, may expose you to dangerous voltage or other hazards. [. . . ] The meter will bounce around a little, so you will need to do a mental average (I tend to filter out the peaks in my mind, so I don't set the sub too hot). The right channel should measure about the same and no additional adjustments need to be made. You can play the full-bandwidth pink noise, assigning it to the left and then the right channel (not at the same time). It may be a little higher, because below 30Hz the room may have a little extra gain. No adjustments should be made with Full Bandwidth pink noise, unless you have an RTA (real time analyzer) or other spectrum analyzer. If you have any questions, please do not hesitate to contact us directly with your questions. (516) 249-1399 (9:00am to 5:30pm EST) or visit our website / forum @ www. abluesky. com. These test files are all mono files. Please make sure you hard assign them to the left and then the right, not both channels at the same time. THEORY The purpose of calibration is to adjust the overall electroacoustic system gain so that 0dBVU of electrical signal level equals a certain acoustic level at the listening position. Since most recording media is now digital, the reference electrical signal level is usually ­20dBFS with 20dB of headroom. The reference SPL level however can vary based on the delivery media and speaker type. Please note that the bandwidth limited signals that have been provided, limit many of the room interaction affects often associated with measuring SPL and broadband pink noise. All test signals are recorded at ­20dBFS including the 1 kHz sine wave tone. The sine wave tone is used to set the electrical output level throughout the signal path, right up to the point you get to the speakers, while the various pink noise signals are used for acoustic measurements and calibration. The following procedure assumes you are calibrating the system to 85dBc SPL. Step 1 Step 2 TURN OFF THE MONITORING SYSTEM (until step 4) Remove all eq and dynamics from the signal path and set all controls to zero / unity gain. Play the 1kHz Sine Wave, hard assign it to the left channel only, and adjust the output fader so the output meter reads -20dBFS. Then hard pan the signal to the right channel output and repeat for the right channel. Step 7 Step 8 User Manual · Expanded Calibration Guide · Page 7 SUB 212 USER MANUAL · 7 · A TOUR OF THE SUB 212 AMPLIFIER & ELECTRONICS 1 2 3 4 5 6 7 8 9 R RIGHT IN RIGHT OUT LEFT IN LEFT OUT SUB IN SUB OUT MUTE blue sky international 70 Sea Lane Farmingdale, New York, 11735 USA www. a bluesk y. com PHASE 0 SUB GAIN REF -3 OFF AUTO -6 -9 -12 -15 -18 -24 10 sub 212 | 400-watt active subwoofer OFF 180 11 RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION ! VOLTAGE SELECTOR ON Replace Only With Same Rating and Type WARNING:To reduce the risk of fire or electrical shock, do not expose this equipment to rain or moisture. AVIS: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR designed in the USA WARNING: SET VOLTAGE SWITCH BEFORE TURNING ON T 4AL 250V FOR 230V INPUT T 8AL 250V FOR 115V INPUT 115/230 50/60 Hz 800W made in China 12 13 14 15 Page 8 · User Manual · A Tour of the SUB 212 Amplifier & Electronics SUB 212 USER MANUAL · 7 · A TOUR OF THE SUB 212 AMPLIFIER & ELECTRONICS 1. RIGHT XLR IN - These XLR inputs should be connected to the left / right output of your console or digital workstation. Refer to page 6 for more information [System Signal Flow & Connections]. [. . . ] SUB 212 Active Subwoofer Enclosure * . 75" MDF with 1" front and rear baffle and internal bracing * Isolation feet included * Dimensions: 24. 2" H x 15" W x 21. 4" D (inc / heatsink and grill) * Weight 96 lbs. / 44 kg Dual 12" Hemispherical Woofers * 12" long excursion design * Cast aluminum frame * 2" high temperature voice coils * Mica filled polypropylene cone * Fully video shielded Electrical Specification * Input Voltage 115/230 VAC 50/60Hz switchable * Wattage 800 Watts * Fuse 115VAC 8A - 250 V 5x20mm (Time Delay or Slo-Blo) 230VAC 4A - 250 V 5x20mm (Time Delay or SloBlo) Amplifier * Class AB design * 2 x 200-Watts RMS into 4-Ohm * . 1% THD + noise at rated power @ 1kHz * XLR balanced input * Adjustable gain control * Voltage Sensitivity 200mv = 100dB SPL@1m Frequency response characteristic: * +/-3dB 25Hz to 200Hz (see graph below) Bass-Management Section * Input impedance * Common mode rejection * Maximum Input Level * Output Impedance * Nominal gain * Low-Pass Filter Type * Low-Pass Cutoff * High-Pass Filter Type * High-Pass Cutoff * THD + Noise * SUB IN low pass filter 20K balanced 40dB typical @ 60Hz +24dBu balanced 200 Ohms balanced 0dB 4th order Linkwitz-Riley 80Hz 2nd order Linkwitz-Riley 80Hz 0. 002% @ 1kHz @ 4dBu None User Manual · Technical Specifications · Page 11 SUB 212 USER MANUAL · 10 · SUB 212 CABINET DIMENSIONS 21. 4 542 mm 15. 0 381 mm 20. 0 507 mm 24. 0 610 mm 24. 2 615 mm 12. 0 305 mm . 8 19 mm 1. 5 38 mm 3. 1 79 mm 14. 5 368 mm Page 12 · User Manual · SUB 212 Cabinet Dimensions SUB 212 USER MANUAL · FACTORY SERVICE INSTRUCTIONS, GENERAL CONTACT DETAILS & RECYCLING INFORMATION 11. 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. [. . . ]