ADJUSTING THE POWERED
SUBWOOFER
The specially finished PSW650 Powered Subwoofer included in your RM7500 System features two
SUBWOOFER SETTINGS (Figure 9)
On the back of the subwoofer, you will see the following controls:
•Variable Low Pass Crossover Control
•+3dB Switchable Bass Boost Switch (to boost output of low output subwoofer output jacks)
•High Pass Crossover Toggle
The “80 Hz” setting provides extra bass filtering for front satellites. The “Full Range” setting provides best performance in most cases.
•Switchable Phase Alignment Toggle
•The Subwoofer Volume Control
is found under the logo pod on the front of the subwoofer.
These controls allow you to optimize perfor- mance of the powered subwoofer to match your audio system, room acoustics, and program material.
VARIABLE LOW PASS CROSSOVER (Figure 9)
This control adjusts the frequency range over which the subwoofer operates. It only affects signals that are sent through the line level, subwoofer and speaker level inputs. It has no effect on signals fed into the LFE input.
RECOMMENDED CROSSOVER SETTINGS — ON WALL & OFF WALL
Mounting your right and left front satellites on the wall tends to increase their bass. Mounting them on stands away from the sides of the room tends to decrease their bass. If you mount the satellites on the wall, we recommend setting your variable crossover control at a lower setting. (Figure 10) If you mount the satellites on stands, we recommend setting your variable crossover control at a higher setting.
(Figure 11)
FIGURE 10 | FIGURE 11 | |
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Generally, turning the knob “up” (clockwise) will add more “warmth” to the bass and lower midrange, possibly at the sacrifice of bass “tightness” and midrange clarity. Conversely, turning the knob “down” (counter clockwise) will make the bass and lower midrange sound “thinner.”
FIGURE 9a
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SUBWOOFER LEVEL CONTROL (Figure 9a)
Subwoofer level is adjusted via the knob
on the front of the subwoofer under the logo pod. Play a piece of music that has an aver- age amount of bass content. Start with the knob set to “5” and the Phase switch set to “normal.” Adjust by ear using a wide variety of CDs and video sources. Adjust for deep, powerful bass without “boominess.”
SWITCHABLE PHASE ALIGNMENT (Figure 9)
Changing the phase of your subwoofer can affect its bass “attack.” If the bass sounds muddy or unclear, try toggling the phase control. Have someone else switch between the two settings while you sit in your favorite listening position. Use music with good bass (preferably “plucked” string bass) and a deep male vocal. When you hear the best balance of deep bass and natural lower octaves of the male voice, you have achieved optimum phase tuning.
FIGURE 9
+3dB BASS BOOST (Figure 9)
In most cases, this switch should be set to “0.” If you have hooked up your subwoofer from a subwoofer output or
to music sources.
HIGH PASS CROSSOVER—
SPEAKER LEVEL (Figure 9)
Most systems will sound best with the toggle set to “Full Range.” The “80 Hz” setting is recommended only if you frequently play your system at extremely high levels and prefer
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