Formula F-12 Kullanıcı El Kitabı - Sayfa 3

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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Congratulations on your purchase

Formula F-12 powered subwoofer. It will give

your stereo system unparalleled low frequency

output.

Bass frequencies are critical to realistic

sound reproduction. After you've hooked up

your subwoofer, you'll discover just how

much "punch" and depth you've been miss-

ing. No matter what kind of music or videos

you listen to...whether you listen to it loud

or soft, you'll experience sound that's richer

and fuller. Bass guitar and string bass will

have more impact. You'll be able to FEEL as

well as hear percussion – just the way you

would at a live performance. If you have an

audio/video system, movies will come alive

with thunderous sound effects that were

never possible without the F-12.

The F-12 is a self-powered subwoofer

that frees your receiver or power amplifier

from the power demands of reproducing

very low frequencies. To do this, the F-12

incorporates its own built-in crossover

system that automatically "assigns" higher

frequencies to your main speakers and lower

frequencies to its own power amplifier,

contained within the subwoofer enclosure.

of a

The F-12 has been meticulously designed

and tested to insure high performance, dura-

bility and longevity.

This manual is designed to take you step-

by-step through the setup and operating

process. This procedure is not difficult, but

it IS slightly different than setting up a line

level component such as a cassette deck or

CD player. Reading this manual carefully will

insure that you get maximum performance

from your subwoofer.

UNPACKING

Remove the subwoofer from its packing

carefully and inspect it for any shipping

damage. If you discover damage, contact

your dealer immediately.

If possible, save the carton and internal

packing. It's the best possible protection for

your subwoofer if you need to move it or

return it for service.

Keep your sales receipt in a secure

place. It will establish the duration of

your warranty. It is also good for insur-

ance purposes in case anything happens to

your stereo system.

DRAWING 1 - Amp rear panel

F-12 AMPLIFIER

PANEL TOUR

Before actual setup, you should familiarize

yourself with the connections on the back

of the F-12, as shown in Drawing 1.

. POWER INDICATOR. When the amplifier

is ON, this indicator will be green. When the

amplifier is in the STANDBY mode, as men-

tioned in item 2, this indicator will be red.

2. POWER/AUTO ON SWITCH. This toggle

switch turns the subwoofer on and off.

When the switch is in the ON position, the

amplifier will stay on as long as the switch

remains in that position. When this switch is

in the AUTO position, the amplifier will stay

turned on as long as a signal is being fed to

the subwoofer amplifier. 15 to 20 minutes

after you stop playing music or a video, the

amplifier goes into STANDBY mode – see (1).

When you again begin to play music or a

video, the amplifier will automatically turn on.

3. PHASE SWITCH. This switch is used to

set the subwoofer's phase to either normal

"0º" or reverse "180º" (out of) phase.

Once you determine the placement of the

subwoofer you will need to try both positions

of this switch for the best bass output for your

listening position. The physical location of

your subwoofer and main speakers determines

the phase setting that will sound best at your

main listening position. If this requires using

the "180º" mode, don't worry, there is nothing

"abnormal" about it.

4. VOLUME CONTROL. Rotating this

knob clockwise increases the output level of

the subwoofer. To start out, make sure that

the VOLUME is turned all the way down

(fully counterclockwise). Later, after some

initial listening tests, you can adjust the vol-

ume to your own tastes. However, care

should be taken not to overdrive the sub-

woofer to the point of audible distortion.

5. CROSSOVER FREQUENCY CONTROL

This control determines what lower part of

the frequency spectrum will be reproduced

by the subwoofer and what higher parts will

be handled by your main speaker. It is a

"crossover" control. Rotating the knob sets

the point where all lower frequencies will be

handled by the subwoofer and all higher fre-

quencies will be routed to your main stereo

speakers.

As a starting point, set the control around

80 Hz. if you are using left and right tower

speakers, 100 Hz. with bookshelf speakers,

and 120 Hz. with small mini-speakers.

Note: If you are using a Dolby Digital

type receiver, the subwoofer crossover

control does not work. You must

set the crossover frequency in your