ARENDAL 1723, Handbook, Page: 40 / 57

2. LPF Bypass
- On/Off. If On is selected, then the Low Pass Filter will be disabled. For Home Cinema use, where an AVR is used we recommend
LPF Bypass – On. For stereo users you may leave this setting Off, so you can adjust the Low Pass Filter under next step.
3. LPF Frequency
- The Low Pass Frequency is adjustable from 30 Hz to 160 Hz in 1 Hz increments. The number chosen here means the
frequencies above will be fi ltered away to avoid high tones coming from your subwoofer – nobody wants to hear Diana Krall’s
voice through the subwoofer anyways...
4. LPF Slope
- The Low Pass Frequency Slope mean at which rate the frequencies should be tapering off, from the LPF Frequency point
chosen. It is adjustable from 6dB/Oct to 24dB/Oct with 6dB increments. So, if you already set the LPF frequency to 100Hz, then
setting the LPF Slope to 12dB/Oct will ensure that the signal has 12dB lower output at one octave above 100Hz (one octave
above 100Hz is 200Hz).
Here you can see the different slopes and how they affect the frequency response above the LPF frequency
you have set.
10Hz 250 640 1k
LOW PASS FILTER (LPF) SET TO 80Hz
dB SP
L (REL 100Hz)
6dB/OCT. SLOPE
12dB/OCT. SLOPE
18dB/OCT. SLOPE
24dB/OCT. SLOPE
ARENDAL SOUND
LPF SLOPE
5dB
0
-5
-10
-15
-20dB
16 25 40 63 100 160 400