Formula F-12 Kullanıcı El Kitabı - Sayfa 4

Subwoofer Formula F-12 için çevrimiçi göz atın veya pdf Kullanıcı El Kitabı indirin. Formula F-12 8 sayfaları. 12? powered subwoofer

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receiver (check your receiver's

owner's manual).

6. SUB IN. This connection is used

to connect the subwoofer to the receiver.

Note: If you use the SUB IN connector,

the RECEIVER TYPE toggle switch

must be in the Pro Logic mode for

the crossover frequency control to

operate.

7. RECEIVER TYPE TOGGLE SWITCH.

You must set this switch to the type of

receiver mode you are using. Note: When

this switch is set to DIGITAL RECEIVER 5.1,

6.1, 7.1, the CROSSOVER FREQUENCY

control (9) does not affect the signal.

8. POWER INPUT. This connector is the

AC power in. Your subwoofer is supplied

with a removable power cord that mates

to this plug.

9. REMOVABLE FUSE HOLDER. By pushing

in and turning counter-clockwise, you can

remove and replace the fuse. Check the

rating on the fuse for proper size of your

unit.

10. FROM RECEIVER. Connects to a

receiver's speaker terminals. These binding

post, color-coded connectors are used to

hook the subwoofer to another receiver that

may not have subwoofer out or LFE (Low

Frequency Effects) output connections.

11. OUT TO SPEAKERS. If you are using

the F-12 from receiver inputs, you will hook

your main speakers to these binding post,

color-coded connections. They are NOT

used if you are using the LFE (SUB) IN line

level connection.

Away from walls:

Normal bass

Away from walls:

Normal bass

PLACEMENT

Positioning Your F-12

The subwoofer operates at low bass

frequencies which are essentially omni-

directional. That means you can place the

subwoofer almost anywhere in a room

without compromising the effectiveness of

your main stereo speakers.

Four factors need to be considered:

1) distance from your main speakers;

2) distance from a wall outlet;

3) distance from your receiver; and

4) proximity to walls and corners.

1. Distance from your main speakers.

The best placement for your subwoofer is

on the same wall as the main speakers, espe-

cially if you are matching up with small book-

shelf speakers. With tower speakers, side wall

or rear placement is also acceptable.

2. Wall outlet. Since the subwoofer re-

quires AC power, it must be placed within 10

feet of a wall outlet. We don't recommend

extending that range with an extension cord.

3. Connections to your receiver,

integrated amplifier or preamplifier. If

your receiver or integrated amplifier does

not have a subwoofer output or LFE output

(see next page), setup between the receiver

and subwoofer will be made with speaker

wire. You can basically place the subwoofer

anywhere in a normal-sized room.

4. Proximity to walls and corners.

Physical placement of the subwoofer will

have a definite impact on the frequency

Against walls:

More bass

Against walls:

More bass

DRAWING 2 - Subwoofer placement

response and the perceived amount of

subwoofer bass output. Because low fre-

quencies have long wavelengths, they are

influenced by proximity to a boundary such

as a wall or floor.

See Drawing 2 below. When you place

the subwoofer well away from a wall, it will

produce bass at a certain level. Move the sub-

woofer close to the wall, it will produce

more output (about 3dB more). Putting the

subwoofer in a corner will increase output

another 3dB (6dB more than when placed

away from walls and corners).

All this technical jargon may sound confus-

ing, but it basically means that you have a num-

ber of options, each of which produces a dif-

ferent amount of bass. For example, if you like

a lot of heavy bass, consider putting the sub-

woofer into a corner. If you like smoother,

less obvious bass, move the subwoofer out

into the room. The main thing to remember

is that there is no "right" or "wrong" place to

put the subwoofer (assuming it's less than 10

feet from a wall receptacle). It all depends on

how much bass you want.

Another reason to experiment – because

low bass waves are very large (up to forty feet

or more across!), they tend to cancel and

reinforce each other, causing places in the

room where there is lots of bass and others

where there isn't very much at all. If you walk

around your listening room while playing

music, you'll probably discover these sorts of

areas where bass is either exaggerated or

reduced.

Incidentally, moving the subwoofer around

won't affect the stereo imaging of your main

stereo system, so feel free to try various sub-

woofer positions.

In Corner:

Most bass

In Corner:

Most bass