Formula F-12 Manual del usuario - Página 7

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INITIAL

LISTENING TEST

It's now time to test the F-12

subwoofer in your listening environment.

1. Double-check all connections.

2. Make sure that the volume controls

on both the subwoofer and your receiv-

er/integrated amp/preamp are turned all

the way down (fully counterclockwise).

Set the PHASE switch to normal. Set the

CROSSOVER FREQUENCY knob to 80 Hz.

Set the SUB IN switch to the type of receiver

mode you will be using.

3. Turn on your stereo system. THEN

turn on the subwoofer. Confirm that the

subwoofer's green POWER indicator is

glowing. If it isn't, check the power

connections between the subwoofer and

the wall socket.

4. Play a musical selection that you are

familiar with. Pick a song that has regular

low bass beats. Advance the receiver/inte-

grated amp/preamp's volume control up to

a normal listening level. If you don't hear

sound through your main speakers, turn off

the system and check connections. Also

consult the troubleshooting tips.

5. If sound is coming out of your main

speakers, turn the sub amp's VOLUME

control clockwise until you hear noticeable

additional bass. If you don't hear bass by

the time you have advanced the subwoofer's

VOLUME control halfway, turn off the sys-

tem and check connections. Also consult

the troubleshooting tips.

6. Adjust the sub amp's VOLUME control

until you are satisfied with the amount of

bass. You may want to try several different

movies, tapes, compact discs or DVDs

while determining how high to adjust the

VOLUME. The amount of bass varies from

disc to disc and between different types of

music.

7. While playing music, move the sub-

woofer around, in and out of corners, clos-

er and farther from the wall, etc. as much

as the power cord and other connections

will allow.

8. Now that you have adjusted the

quantity of bass via the volume, it's time to

work on the quality of the bass with the

CROSSOVER FREQUENCY control, PHASE

switch – and experimentation with the

subwoofer room position.

8a. Have someone change the PHASE

switch back and forth from 0º to 180º while

you sit in the main listening position. Leave

the switch in the position where you like the

bass most.

8b. Change the CROSSOVER FREQUENCY

control (for Dolby Pro-Logic receivers)

to higher and lower settings. If the

CROSSOVER FREQUENCY control is set too

high, you'll start to hear low midrange

(voices and instruments) through it. This

will negatively affect the stereo imaging of

your main speakers. Back the CROSSOVER

FREQUENCY setting off until you hear only

bass from the subwoofer. If the CROSSOVER

FREQUENCY control is set too low, you

simply won't get much output from the

subwoofer. Move it back closer to 80Hz.

9. After you are satisfied with the output

of your subwoofer, you can make all your

volume settings through your receiver's volume

control. The only time you might want to

re-adjust the sub amp's VOLUME is when

you encounter a musical selection that has

abnormally low – or high – bass.

You can leave the subwoofer turned on

and in AUTO mode when not in use. It does

not draw much power in this state and will

be ready to add low bass the moment you

begin to play music. The subwoofer will

automatically go into STANDBY mode after

10 to 20 minutes, when no music is playing.

If you're not using your stereo system

for a long period of time (such as when

you're on vacation), unplug it from the AC

wall outlet.

Caring for Your F-12

The F-12 enclosure is finished in a very

high quality polymer laminate covering that

is both attractive and excellent protection for

the wood cabinet. To remove fingerprints,

splatters of diet soda, peanut butter or other

real-world substances that mysteriously seem

to appear on stereo components, use a

damp, soft cloth on the laminate. You may

also use a high-quality furniture polish to

maintain the original luster.

TROUBLESHOOTING

AND SERVICE

Before returning your subwoofer for ser-

vice, you can save time by checking for a few

problems that are most often encountered.

Power light is not lit. No sound.

1. Is your subwoofer plugged in to a live

AC wall socket?

2. Is the power cord firmly plugged into

the subwoofer amp power input connector?

(See Power Input, Drawing 1, #8)

3. Is the power switch on?

4. Has the subwoofer overheated and shut

off temporarily?

5. Is the fuse OK?

No sound from either set of

speakers.

1. Are your other components turned on?

2. Is the receiver or preamp set to the

appropriate input and is that sound source

playing?

3. Do you have an unconnected tape

monitor selected?

4. Is the subwoofer correctly connected to

your receiver, preamplifier or integrated

amplifier and turned on?

Sound comes from main

speakers but not subwoofer

1. Is the subwoofer turned on (power

light in the green mode) and VOLUME

control turned up?

2. Check the speaker connections for small

strands of wire touching both terminals.

3. Some digital receivers only send a sub-

woofer out signal when in the movie or digital

mode. In the 2 channel (stereo music) mode,

no subwoofer out signal is sent to the sub-

woofer. You may need to set your main speak-

ers to "small" mode in your receiver setup to

get the receiver's subwoofer output to turn

on. Check your receiver's owner's manual for

subwoofer operation.

4. For digital receivers – make sure

the subwoofer is "ON" and the subwoofer

level is set to "0dB" or greater.

Sound comes from the subwoofer

but not your main speakers

• confirm that the power amplifier is

turned on.

• check the RCA patch cord

• check the speaker wire connections

between the power amplifier and

main or satellite speakers.

Bass is muffled or weak

1. Check speaker wire polarity of all

connections.

2. Reposition your subwoofer. At some

points in the room, its output may be can-

celled by the geometry of the room. Moving

the subwoofer can eliminate this problem.

Please refer to Page 2, #10 in the Safety

Instructions for conditions that ALWAYS

require service by qualified personnel.

If you have tried all the above and

still cannot get the subwoofer to operate

properly, consult Tech Support at

1-877-558-4242 (Ext. #2).

B . I . C America

925 N. Shepard Street

Anaheim, CA 92806