User`s manual

6
D-501 Amplifier User’s Manual
o p e r a t i o n
Music or Movie Mode
The front panel Music or Movie toggle button changes the intensity to an appropriate level for the
source material. You can alternitively use the hand-held remote to select Movie or Music.
LEDs on the front panel indicate the mode. Music and Movie mode both have a flat frequency response.
The Movie mode has 6dB of additional gain for added impact.
Intensity (Level) Control
Adjust the intensity of motion by turning the intensity knob clockwise to increase, or
counter-clockwise to decrease. The knob on the front panel is a continuous rotary control
with 32 positions. Set the intensity to your preferred level. The intensity should be set to
achieve a natural feeling blend between the subwoofer and motion system.
The remote control has the following functions:
1. POWER - Toggles between Standby Mode and ON.
2. VOL+/- – Adjusts the Intensity (level).
3. MUTE – Mutes the motion system. Press again to unmute.
4. MUSIC/MOVIE – Selects the corresponding mode.
About Low-Pass Filter (LPF)
The D-501 amplifier inputs sum the left and right channels together and the resulting
signal is passed through an adjustable low-pass crossover before being amplified. The crossover
control allows you to adjust the upper limit of the Actuator’s frequency response from 40 to
160 Hz. The Actuator’s response will begin rolling off above the frequency you set this control
to. The slope is 24 dB/octave.
You should set the crossover frequency to obtain a smooth and seamless blend with the
subwoofer and the main speakers in your system. Adjusting the LPF to the preferred setting
Most receivers and processors provide a menu option in which you can characterize main
speakers as “large” or “small” speakers. This affects the bass signals passed to the main
speakers. We recommend in most cases setting the main speakers to “small,” despite their
size and frequency response characteristics, allowing all multi-channel bass and LFE signals to
be passed to the D-501.
high-frequency content (such as motion from human voices) is not. Proper adjustment of the
motion experience to most closely resemble a real-world experience.
Start with the LPF set to 100Hz. Reduce the frequency setting if unwanted high frequency content
such as voices is present during testing. Increase the setting if you feel that desirable content
is being unnecessarily removed.
will ensure that desirable low-frequency motion is present, while undesirable
LPF will allow your