Rythmik audio FVX15 User manual

Rythmik Audio FVX15 ported subwoofer Quick Guide
*More information can be found at www.rythmikaudio.com/phase1.html
Line Level inputs
For sub output from HT
receiver/processor, one can
use either of the two (R+L)
line level inputs with 12db
LPF SLOPE switch setting,
or just LFE IN. When using
LFE IN, phase control and
crossover control have no
function. The trade-off
between using LFE IN and
LINE IN is the perceived
background noise level. For
two-channel inputs, one
should use LINE IN only.
Volume level setting
is determined by
the efficiency of front speakers. It is not
an indication of whether the sub can
play louder or not.
Crossover setting
is a fine
-
tuning knob for integration. It is
useful even when one already uses bass management. The
upper end extension of the sub is limited to avoid using the servo
subwoofer at frequencies where servo is less effective. Set to
max by default.
LPF slope setting determines the slope of crossover setting. For
two-channel, one should use 24db whereas for HT input, one
should use 12db.
*Delay/phase control
It is one of the most important
controls for integration without
external delay time adjustment
control. See our integration guide*.
Power LED indicator
The power switch has 3 positions: OFF,
AUTO, and ON. AUTO detects the input
signal and turns on the amp immediately
and turns off the amp after 45 minutes of
inactivity.
Bass extension switch
The bass extension control in FVX15 enables the user to
customize the frequency response of the low end. It combines
multi-tune specific frequency contouring and damping control in
one switch. The damping control determines the slope of roll-off
and the amount of time domain ringing. High damping provides
the least amount of time domain ringing and the most gradual
roll-off curve. Low damping provides the steepest roll-off at the
low end at the expense of added time domain ringing. There
are two positions for 1 port operation which extends to 12hz.
1P-music uses high damping while 1P-HT uses low damping.
High SPL playback should use 2 port setting. The damping in
this position is low.