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Optimizing settings/Troubleshooting
16 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
X 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.
X 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