User manual BLUE SKY MEDIADESK MKII 5.1

[. . . ] Blue Sky International 70 Sea Lane Farmingdale, NY 11735 www. abluesky. com MediaDesk MKII 2. 1 and 5. 1 System Owner's Manual Version 1. 0R | June 3, 2010 Contents Important 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Safety Instructions _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ MediaDesk MKII Introduction _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Important notes about MediaDesk 2. 1 _ _ _ _ _ _ _ _ _ _ MediaDesk 2. 1 System - What is included? _ _ _ _ _ _ _ _ 2. 1 Quick Setup _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2. 1 System Signal Connections and Level Settings _ _ A Tour of the 2. 1 MediaDesk Amplifier and I/O _ _ _ _ _ Expanded 2. 1 Calibration Guide _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ MediaDesk 5. 1 System Introduction _ _ _ _ _ _ _ _ _ _ _ _ Important notes about the MediaDesk 5. 1 _ _ _ _ _ _ _ MediaDesk 5. 1 System -What is included? _ _ _ _ _ _ _ _ 5. 1 System Signal Connections _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ A Tour of the 5. 1 MediaDesk Amplifier and I/O _ _ _ _ _ 5. 1 Speaker Placement _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ A Tour of the MediaDesk 5. 1 Remote _ _ _ _ _ _ _ _ _ _ _ System Logic Outline _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expanded 5. 1 Calibration Guide _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ MediaDesk Mounting and Placement Options _ _ _ _ _ Subwoofer Placement Guide _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Technical Information _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Satellite Cabinet Dimensions _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Subwoofer Cabinet Dimensions _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ MediaDesk 5. 1 Remote _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Factory Service Instructions _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ General Contact Details _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Page 3 Page 4 Page 4 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 9 Page 9 Page 10 Page 11 Page 12 Page 13 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 21 Contents Safety Instructions 1 READINSTRUCTIONS - Read all safety and operating instructions before operating this product. RETAIN INSTRUCTIONS - Retain these safety and operating instructions for future reference. [. . . ] Figure 3 shows another common application, the RCA inputs on MediaDesk being fed by the output of a standard computer sound card. This requires the use of an optional adaptor cable, to go from the 1/8" stereo jack to two RCA outputs. These cables are available from most electronic retailers, computer stores and pro audio dealers. Consult the manual or help files that came with your sound card for specific setup information. Please confirm that the software settings are not constraining or limiting the response of the system in any way (often an issue with laptop computer audio settings). SpeakerLevelOutputs/SATspeakerlevelinputs Figure 4: This drawing shows the proper way to insert bare wire into the binding posts which are on the subwoofer outputs and SAT inputs. When inserting bare wire, please make sure that there are no strands protruding out that may create a short-circuit. These binding posts are compatible with wire gauges up to approximately 12 gauge. A note about the LFE Channel / LFE Input The LFE Channel was originally designed for film applications as a way to extend the low frequency "head-room" (not frequency response) of the playback system. This additional headroom was created by adding +10dB of in-band gain to the LFE channel. This channel is designed to be used when no additional LF headroom is available in the other channels. As an example, you may use the LFE channel to increase the dynamic low frequency content of a movie that has many large explosions. It is important to note that no "significant" audio should be sent exclusively to the LFE channel. The reason for this is that if a Dolby Digital audio track is folded down to 2-channels, the LFE channel will not be added to the folddown mix (all other channels will be added to the fold-down). + MD REMOTE RIGHT + CENTER + LEFT + Figure 3 3. 5MM STEREO PHONE PLUG CEN/LFE L/R LS/RS 5. 1 SOUND CARD bluesky MediaDesk TM bluesky MediaDesk MAX INPUT + 24dBu / 12 dBu TM RED BLACK SET SWITCH TO 5. 1 PUSH LEFT RED LEFT O FF PUSH LS RIGHT -10 dBV RS -10 dBV LS PUSH RIGHT REF 2. 1 GAIN -3 -6 -12 -15 -18 -21 MODE 2. 1 5. 1 Set to 5. 1 when3 ch optioninstalled BLACK BLACK -10 dBV PUSH REF PUSH CEN LFE INPU ATTENUATOR T + 10 dB SUB GAIN use for + 4dBuinput level -3 -6 0 dB REF O FF -15 -18 -21 RED -3 PUSH REF REF O FF SUB OUT Right Left MASTER VOLUME -15 -18 -21 0 dB + 10dB LFE GAIN RS Replace with Sam e Rating and Type T4 A 250V LS C made in China RS + LS + MD REMOTE Figure 4 Page 10 12. A Tour of the 5. 1 MediaDesk Amplifier and I/O Warning: Do not connect more than one source to any input on Mediadesk . 1. XLR inputs - Connect these inputs to the left output of your console or digital workstation. Refer to page 10 for more information [5. 1 System Signal Connection and Level Setting]. RCA Inputs - These inputs are designed to work with -10 dBV sources, such as consumer sound cards, CD players, some mixers, etc. Refer to page 10 for more information [5. 1 System Signal Connection and Level Setting] . 1 PUSH MediaDesk LEFT Max Input +24dBu @ 10 +14 dBu @ 0 MK II blue sky international 70 Sea Lane Farmingdale, NY 11735 MediaDesk MK II blue sky international 70 Sea Lane Farmingdale, NY 11735 2 RIGHT LEFT 1 3 - 10 dBV PUSH RIGHT 2. 1 -3 GAIN -6 REF OFF 4 5 6 7 -12 -15 -18 MODE 2. 1 -21 5. 1 Set to 5. 1 when 3-ch upgrade installed 2. INPUT ATTENUATOR Max input +14 dBu -3 -6 -9 Max input +24 dBu REF OFF SUB GAIN -15 -18 -21 SUB OUT RIGHT Do not expose this equipment to rain or moisture. LEFT 3. 15. 16. 115V/ 2. 1 Gain - This knob does not do anything in 5. 1 230V 8 50/60 mode. Hz Mode Selector Switch - Set this switch to 5. 1 If you 360 watts max !made in China set this switch to 2. 1, the remote will not control the left and right channels. [. . . ] Technical Information This next section outlines the components, specifications and performance data that make this product such a uniquely high value. In order to continually improve all of its products Blue Sky reserves the right to change these specifications without notice. MediaDesk2. 1Specifications GeneralSpecifications Input Impedance (all inputs) 20k Ohms balanced Input attenuator =+14 dBu 52k Ohms balanced Input attenuator =+24 dBu 5k Ohms unbalanced RCA input Common Mode Rejection Ratio 40 dB typical @ 60Hz (balanced input only) Maximum Input Level +12 / +24 dBu balanced (Set by input attenuator) +14 dBu unbalanced Subwoofer maximum output +24 dBu balanced Subwoofer output impedance 200 ohms balanced Amplifierpoweroutput Note:Long term power output is limited by the speaker protection circuitry Short term power output 1 channel driven: 65 watts x 1 @ <. 05% THD into 4 ohms @ 1 kHz Short term power output 2 channels driven : 55 watts x 2 @ <. 05% THD into 4 ohms @ 1 kHz Subwoofer power output: 65 watts x 1 @ <. 05% THD into 4 ohms @ 50 HZ Mains voltages: 115/230V 50/60 HZ switchable Maximum power consumption: 380 watts 5. 1System Volume Control range Channel trim range LFE gain range 50 dB in 1 dB steps +/- 6 dB in 1 dB steps 0/+10 dB switchable Satellite · Lacquer finished baffle · Low diffraction front baffle design with flush mounted drivers · Solid 3/4" MDF enclosure with 1" MDF baffle · Dimensions: Please see page 18 · Weight 5 lbs. · 1/4"x 20 inserts for attachment of OmniMount · 3/8" x16 insert for attachment to microphone stand with adapter (adapter not supplied) · 4" cast frame Neodymium hemispherical woofer · 1" Dual ring radiator Neodymium tweeter · Fully video shielded · Satellite Low frequency crossover 110 Hz · Tweeter Crossover Frequency 2. 0 kHz The following specifications are measured using the MediaDesk Amplifier · Frequency Response Satellite +/- 2. 5dB 300 to 10 kHz +/- 3. 0dB 110 to 20 kHz · Voltage Sensitivity (at reference gain) -12 dBu = 90dB SPL @ 1M Balanced Input attenuator set to +12 dBu 1 dBu = 90 dB SPL @ 1M Balanced Input attenuator set to +24 dBu 240 mV = 90 dB SPL @ 1M RCA input 4 ohm nominal impedance 8"SealedBoxSubwoofer · Fully video shielded. 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