BLUE SKY SUB 212 Manual do Utilizador descarregar pdf (Página 10)

Page 10 • User Manual • Quick 2.1 System Setup Instructions

1. Blue Sky monitoring systems leave the factory fully calibrated.

With the gain control on the SAT 8 set to the reference mark, a

200mV (-11.7dBu) pink noise signal, with a bandwidth of 500 to

2kHz, will yield 90dB SPL at 1 meter. With the gain on the SUB

12 set to the reference mark, or -9dB on the SUB 15, 100mV

(-13.7dBu) pink noise signal, with a bandwidth of 40Hz to 80Hz,

on one of the inputs, will yield 90dB of output at 1 meter. Because

most control rooms have some gain at low frequencies a good

starting point for the subwoofer level is -3dB from the reference

position. If you are using multiple subs, the gain may need to be

even lower than this (depends on the acoustics of the studio and

the placement of the subs). For more information with regard to

the controls, please see the manual that came with the SUB 12

or SUB 15, and page 6 & 7 of this manual [A Tour of the SAT 8

Ampliﬁer & Electronics].

2. The SAT 8, SUB 212, SUB 12 and SUB 15 are compatible with

balanced XLR connectors / cables. The total number of XLR

cables needed will depend on the system conﬁguration. However

for a basic 2.1 system, with one sub, you need a minimum of four

XLR Cables. For more information on connecting your system,

please see page 9 [System Signal Flow & Connections].

3. The ﬁrst step in the installation process is to position the active

subwoofer. Although you have great ﬂexibility with regard to

where an active subwoofer can be placed, a good starting point

is centered between the left and right satellite speakers. This

could be under a console / desk, behind the console / desk,

etc. If you are using multiple subwoofers, you have even more

ﬂexibility. For an expanded subwoofer placement guide, please

see page 12 [Subwoofer Placement Guide].

4. Once the subwoofer is in position, connect the two input cables

from the left and right analog outputs from the mixing console,

digital workstation or other source, to the left and right inputs

on the subwoofer. For more information on connecting your

system, please see page 9 [System Signal Flow & Connections].

5. Next, place the SAT 8s into position. The recommended position

for the monitors is based on an ITU standard and sets the

speakers at 60 degrees from the listener, forming an equilateral

triangle (a triangle with equal sides) - See Figure 3. Fortunately,

this setup eliminates most of the math and is easily simpliﬁed

to the following guidelines: If you want to sit 2 meters from the

speakers, place the speakers 2 meters apart. If you want to sit 9

ft. from the speakers, place the speakers 9 ft. apart Etc. Ideally

the SAT 8 should be at seated ear height. If this is not possible,

tilting the cabinet at the listening area can improve high-frequency

coverage. For more information about placement see page 8

[SAT 8 mounting and placement].

6. Once all the SATs are properly placed, connect the XLR cables

from the left output on the back of the sub, to the 80Hz input on

the left SAT 8. Now do the same for the right channel, connecting

the right output to the right SAT 8. Lastly, please plug the power

cords into the IEC connectors on the SAT 8s and the subwoofer(s).

Prior to proceeding conﬁrm that the system is wired correctly, as

shown on page 9 [System Signal Flow & Connections].

8. At this point the Blue Sky monitoring system is correctly

conﬁgured, and ready for the ﬁnal step in the installation. Prior

to plugging the system into the wall outlet, and powering up

the system, do a ﬁnal quick check of all connections and level

settings.

9. If everything is correct, plug the power cords into an appropriate

outlet / circuit. Do not turn on the power switches, yet! Some

mixers and out-board equipment such as D-to-A converters and

equalizers generate loud rail-to-rail pops when they initially turn-

on. Depending on the level and the gain setting of the monitoring

system, these pops could damage the monitors. To avoid this,

always turn on equipment in the following sequence: All sources

and mixer ﬁrst, and then the monitoring system. Reverse this

procedure when shutting down your equipment.

10. At this point the Blue Sky monitoring system is fully operational,

and ready for use. Begin by playing familiar pieces of music

(preferably reference quality recordings, with dynamic and full-

range sound) which can assist you in the ﬁne-tuning and exact

positioning of both the SATs and the active subwoofer. It is

important to remember that the positioning of the subwoofer

in the room will impact the subwoofer level. You may ﬁnd it

necessary to increase or decrease the level from the reference

position. This is OK, and is anticipated.

11. If a more exacting setup is required, using test signals and a SPL

meter, please see Page 11 [Expanded Calibration Guide].

12. Just remember - Use your ears, they are the best audio tool you

have and you will be amazed how accurate the setup can be if

you use familiar, high quality audio material during the setup of

the system.

13. Congratulations! You have now completed the setup of one of the

world’s ﬁnest monitoring systems. If you have any questions,

please do not hesitate to contact us directly with your questions:

Call (516) 249-1399 (9:00am to 5:30pm EST), e-mail at support@

abluesky.com or visit the Blue Sky Forum at www.abluesky.com/

forum.

FIGURE 3

USER MANUAL • 8 • QUICK 2.1 SYSTEM SETUP INSTRUCTIONS

SAT 8

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16

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