3
[SUBWOOFER PLACEMENT]
Subwoofer placement is less critical, because the frequencies they reproduce are omni directional. This means the human ear doesn’t perceive these low frequencies as
coming from a specific direction, enabling placement of a subwoofer virtually anywhere in the listening room.
It’s best, however, to keep a subwoofer within the sound field of the other speakers. The closer the subwoofer is to a wall, the louder and more intense its bass output
will be: this effect is even stronger when the sub is placed in or near a room’s corner. If using two subwoofers, start by placing them next to the front left and right
speakers, in both front corners or one in the corner and one 1/3 of the way along the front wall from the corner. Each room is different. Experiment with these options or
try other locations until you get the best results. If you must choose a less-than-ideal position, the output level of Phase Technology powered subwoofers is adjustable
to compensate for your listening environment.
[SPEAKER CONNECTIONS]
The following instructions apply whether you are using a separate amplifier or Home Theater receiver. For simplicity we will use the term “amplifier” throughout this manual
to mean both.
SPECIAL NOTE: TURN OFF AND UNPLUG YOUR AMPLIFIER BEFORE CONNECTING SPEAKERS.
SPECIAL NOTE: OBSERVE SPEAKER POLARITY CAREFULLY!
Every cable, speaker and amplifier is clearly marked to show their positive (+) and negative (-) terminals. Amps and speakers may use some combination of
these symbols and/or colors to indicate positive (usually red) and negative (usually black or white) connections. One strand of your cable will also be ridged and/
or marked with a colored line or other indicator on the positive side. For proper polarity and, thus, ideal system performance, always connect the positive side
of the cable to the positive terminals on your speakers and amplifier and the negative side of the cable to the negative terminals.
1. Power ON/Auto/OFF:
This switch, when left in the “Auto” position, automatically
activates the subwoofer when an audio signal is detected and shuts the subwoofer off
after approximately ten (10) minutes of silence.
2. Phase Control:
This adjustment matches the phase - the in and out movement of
speaker cones - to that of your main speakers. Adjust this control by listening to music with
bass content. The setting is correct when the bass sounds the fullest.
3. Crossover Frequency Control:
This adjustment varies the point at which the subwoofer
takes over the task of creating low bass frequencies from the rest of the audio signal
permitting additional fine tuning of the total system. A little experimentation with this control
will allow you to match the performance of the subwoofer to the rest of your speakers
resulting in extraordinary, accurate, deep bass response. This control should be turned to
its highest setting when the sub is connected through the Subwoofer out on your receiver.
4. Subwoofer Level Control:
Adjusts the volume of bass energy allowing you to customize
overall tonal balance to your individual room acoustics and personal taste.
5. Servo Control:
This features automatically protects the subwoofer against damage
which can be caused by excessive amplifer power and/or distortion. Phase Tech’s servo
control system constantly monitors the incoming signal. This active protection circuitry
provides listeners with the full dynamic
range of sound while protecting the subwoofer
from potential damage.
6. LFE Input:
The Low Frequency Effect (LFE) input bypasses the built-in crossover
network, allowing accurate control of the subwoofer by A/V receivers equipped with their
own “Subwoofer Out” or LFE Output connection.
[SUBWOOFER AMPLIFIER PANEL]
CAUTION
STANDBY
/ON
PHASE
0
180
80
Hz
CROSSOVER
FREQUENCY
110
Hz
40
Hz
BASS LEVEL
LOW LEVEL
INPUT
LFE
IN
RL
POWER
HI LEVEL INPUTS
OFFO
N
R
L
AC FUSE
205V 2A
-
+
BLACK
RED
120V~
2A
ATTENTION
[HOOKING UP YOUR POWER FL
SUBWOOFER]
OPTION 1: LOW LEVEL SETUP
This is the
recommended method for those amplifiers and
receivers that are equipped with a “Subwoofer Out”
or “Pre-Amp Out” connection. Virtually all audio/
video receivers have this connection clearly marked
on the rear panel. Run a dedicated interconnect
cable with RCA connectors from the subwoofer
output jack to the line input on the subwoofer. In
this setup, you will be using the internal crossover
on your processor.
Summary of Contents for POWER FL-8
Page 6: ......
