NEXT-LEVEL CALIBRATION
The settings on the PULSE SUB have been set to default levels in order to work well with the Bluesound
PULSE SOUNDBAR 2i in most listening environments. However, you may still require some adjustments to
the settings based on placement and personal preference.
The following procedure assumes your PULSE SUB is installed and connected. If possible, work in a team
with another person: one listening, one making subwoofer-control adjustments. Use the steps below to ne-
tune your subwoofer setup.
1. Set Sub Volume to 0, Sub Cut-Off Frequency to 50Hz. Set any loudness, bass and treble, and/or
equalizer controls on your preamplier or integrated amplier or receiver, or other components, to their
nominal (midpoint or off) positions.
2. Play a familiar music source that includes substantial deep-bass content over an extended section.
3. Gradually turn the PULSE SUB Volume control clockwise until you achieve natural balance between
the subwoofers deep-bass output and your speaker(s).
4. Slowly turn the Sub Cut-Off Frequency control clockwise to reach the best mid-bass blend with your
speaker(s). This will be the point at which the upper bass retains solid impact and fullness. Boom or
muddiness is the result if the control is too high. A thin, “reedy” quality to the mid-bass such as deep
male voices (FM announcers; Darth Vader) is the result if the control is too low.
5. Adjust the Phase control between 0° and 180° several times, leaving it in the position that yields the
fullest low to mid bass output. You will now probably want to repeat steps 3 & 4 to double-check the
subwoofer blend.
Cycling through steps 3 & 4 several times with slightly different settings of both the Sub Volume and Sub
Cut-Off Frequency controls will help you get the most musical performance from your PULSE SUB. The
best combination is that which yields the most solid very-low-bass sounds, without mid-bass boom or a gap
in response between the subwoofer and speaker(s).
The Sub Cut-Off Frequency and Sub Volume controls are interactive. Raising the latter while lowering the
former can have the effect of extending deep-bass response somewhat, with a small sacrice in overall
loudness capability (this will still be well beyond the full-range loudness capability of most systems). In
general, for well-recorded acoustic music the lowest Sub Cut-Off Frequency setting that yields a smooth
transition between subwoofer and main speakers is often the best choice, and will promote deeper low-bass
extension.
Note: The PULSE SUB Volume control is not a bass-boost or daily volume control. It is a set-and-forget
adjustment, not intended for day-to-day usage.
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