Rythmik F18/F28 Installation Guide
1 Subwoofer placement
We recommend first trying either a corner near the
front speakers, or in the middle of the front wall
between them. Typically the corners have greater
output whilst the mid-wall position often has a
smoother frequency response.
2 Rumble filter and limiter
The rumble filter needs to be set when playing at
high SPL such as in the intro of movie ‘Edge or
Tomorrow”. Limiter should be ON at all time for
HT playback.
3 Recommended initial setup when using an
AVR
In the AVR menu, make sure the front speakers
are set to “small” and the crossover frequency is
set to 80hz. Select the subwoofer mode, such that
the bass is only played back from subwoofer, not
“subwoofer + front speakers.” Next, make sure the
distance settings of the speakers and subwoofer
are correct in terms of their relative distances.
Recommended plate amplifier settings:
(from top to bottom, left to right)
1. Input: LFE (higher bandwidth) or LINE-IN
2. Limiter: ON
3. PEQ: OFF
4. Gain: 0db
5. Bandwidth: middle position
6. Frequency: middle position (40 Hz)
7. Delay/phase: 0
8. Crossover: max
9. Volume: middle position (12 o’clock)
10. LOWPASS filter: AVR/12
11. Rumble filter: ON
12. Extension filter: 12 Hz high damping for
articulate sound and 14 Hz low damping
for full bodied HT sound.
4 Recommended initial 2-channel setup
(without AVR or pre-processor)
The standard XLR3 amplifier does not have HPF
output. This means that the front speakers will run
full range. The following settings also assume the
subwoofer is placed at a distance to the listener
similar to those of the front speakers so that no
additional delay time adjustment is needed.
Recommended plate amplifier settings
(from top to bottom, left to right)
1. Input: LINE-IN
2. Limiter: ON
3. PEQ: OFF
4. Gain: 0db
5. Bandwidth: middle position
6. Frequency: middle position (40 Hz)
7. Delay/phase: 1 o’clock – sealed speakers, 10
o’clock for ported front speakers.
8. Crossover: Set Crossover knob to match
natural bass extension of the front speakers.
9. Volume: middle position (12 o’clock)
10. LOWPASS filter: 5” woofers - 80hz/24, larger
speakers - 50hz/24.
11. Rumble filter: OFF
12. Extension filter: 12 Hz high damping for
articulate sound.
5. Recommended room EQ setup procedure
5.1 Rumble filter/Extension setting
We recommend the following settings when using a
Room EQ program:
Rumble filter: OFF
Extension filter: 12 Hz
Damping: low
RoomEQ has the capability of changing the frequency
response in the room. EQ can interfere with the
damping settings as damping relates to the time
domain performance. As a result, it is recommended to
set up EQ with the maximum possible extension and
damping. After EQ has been set up, one can then
adjust the rumble filter, bass extension and
damping settings for the best compromise
between output and sound quality.
5.2 Volume knob settings
We recommend setting the volume so that the
RoomEQ system is not using greater boost or trim
than necessary. If the boost or trim is greater than 6
dB, then volume adjustment is recommended.
5.3 Subwoofer distance determined by the room
EQ system
All room EQ programs need to measure the subwoofer
distance. If the distance reported back from room EQ
program is very different from the physical distance, it
is an indication that the noise level due to reflection or
other factors has obscured the ability to accurately
measure the distance. It is best to either re-run room
EQ with a slightly higher volume setting or to move the
subwoofer location so that the room EQ program can
achieve a more accurate distance measurement.
