Dynaudio SUB 250 MC 用户手册

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Optimizing settings/Troubleshooting
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Dynaudio Sub 250
Control possibilities
The Dynaudio Sub 250 provides two controls to match the frequency response of the 
subwoofer and the main speakers perfectly:
• SUB Lowpass: The upper cut-off frequency of the subwoofer, which can be 
continuously adjusted between 50 and 150 Hz. Above the selected cut-off 
frequency the sound pressure level decreases rapidly.
• SAT Highpass: The lower cut-off frequency of the main speakers; 60 Hz, 80 Hz 
or Flat (neutral) can be selected. Below the selected cut-off frequency the sound 
pressure level decreases rapidly.
Note: The settings for the cross-over frequencies just have an impact on the signal 
at the SAT/SUB Input! The LFE channel is just used to reproduce very low 
frequent effect signals. Consequently signals at the SUB I/O - LFE/Slave In 
are not limited in their frequency response. 
General tips
SUB Lowpass = 80 Hz
The cut-off frequency should be selected as low as possible. Then the subwoofer 
works without being recognized as a single signal source. Very often a cut-off 
frequency of 80 Hz has been experienced as an ideal value.
Reduce weak amplifiers and small speakers from bass load
By limiting the reproduction of low frequency at the SAT Output, amplifiers and 
speakers connected to this output are freed from reproducing the heavy bass load, 
which negatively impacts the sound quality. This will improve the overall sound of 
your audio system.
X Play a music track that has a significant amount of bass over a large bass region. 
An instrument such as a double-bass or bass-guitar is very suitable. Listen 
carefully to the bass-line played by the instrument. As it goes up and down in the 
bass range, the overall bass volume should remain the same – be it with very deep 
or higher bass notes.
Specific tips
Many processors/receivers provide extensive bass management capabilities to set 
the cut-off frequencies for both subwoofer and speakers. If using the bass 
management of the processor/receiver, set the controls of the Sub 250 as followed:
• SUB Lowpass = 150 Hz (at the very right)
• SAT Highpass = Flat