Dynaudio SUB 250 SAT 用户手册

With the phase settings you can adjust the timing relationship between the subwoofer 
and main speakers. If either subwoofer or main speaker are slightly delayed in 
response in relation to the other, it can result in decreased bass output in the 
frequency response area where they overlap each other.
The phase relationship between subwoofer and satellite speakers is very dependent 
on relative distance, construction and working principles of the main speakers. The 
figure on the left shows a case whereby phase of the subwoofer and main speakers 
are incorrect in the critical overlap area, thus significantly reducing acoustic output in 
the listening room in that area.

To find the correct phase setting:
1. Play a bass-rich track which also covers the overlap area. 
2. Toggle the PHASE switch between 0° and 180°. 

Choose the setting for which you experience the most bass.

Note: You can not set the phase if the subwoofer is in slave mode. In this case the 

phase is controlled by the setting of the master subwoofer.

Depending on the bass capabilities of the speakers, the frequency range of 
subwoofer and speakers can overlap between 50 Hz and 150 Hz. A bump or a gap in 
the frequency response and thus a lower sound quality will be experienced if the 
system is not matched properly. In addition, small speakers and low powered 
amplifiers will particularly be affected by the low frequency signals, which again has 
an negative effect on the sound quality. Therefore it makes sense to limit the bass 
range of the connected speakers (called “satellites” in this case) by a highpass filter. 
The Dynaudio Sub 250 provides three settings to achieve this:

• Flat = no limitation
• 60 Hz = frequencies below 60 Hz are cut-off
• 80 Hz = frequencies below 80 Hz are cut-off

To set the cut-off frequency:
X Switch SAT Highpass control to needed position.

Note: In most audio-video-systems the satellite cut-off frequency is already set in the 

bass management of your processor/receiver. Please see the operating 
manual of your processor/receiver for further information. You can decide 
whether you use the processor/receiver or the subwoofer for setting the cut-off 
frequency. Just take care, not to set it twice by setting either of them to Flat.