Whitepaper
DALI A/S   www.dali-speakers.comDALI SUB C-8 D
ACOUSTIC BACKGROUND
You can read more about our sound 
design principles at https://www.dali-
speakers.com/sound/sound-design/
DALI A/S   www.dali-speakers.com
3
AcoustIc 
bAcKGrounD
Unlike many subwoofers in the 
market the DALI SUB E-9 F has 
been engineered to perform equally 
well on both music and movies. It is 
important to us that a subwoofer is 
capable of rendering a performance 
true to the input signal. Therefore a 
DALI subwoofer is everything but a 
‘boombox’.
SUB E-9 F frequency response at different low-pass values.
120.0
dBSPL
110.0
100.0
90.0
80.0
70.0
Frequency Response
LFE
Maximum cut-off frequency
Medium cut-off frequency
Minimum cut-off frequency
You can read more about our sound design principles at 
www.dali-speakers.com120.0dBSPL110.0100.090.080.
070.0Frequency
Over the years DALI’s engineers have 
developed a set of sound design 
principles. Today these are applied 
in the creation of basically any DALI 
speaker. Naturally our subwoofers must 
be able to enter into any setup without 
sacrificing the purpose of providing 
wide dispersion, time coherent and 
low-loss performance.
The DALI SUB C-8 D clearly has its heart set on high fidelity.
DALI A/S   www.dali-speakers.com
4
Properly set up it has a superior ability 
to integrate with the front speakers 
providing more than just an extension 
of the low frequency range. In fact 
a perfect subwoofer integration will 
The DALI SUB E-9 F clearly has its heart set on high fidelity. 
100.0
dBSPL
90.0
80.0
70.0
60.0
50.0
Frequency Response
DALI ZENSOR 1 and DALI E-9 F
DALI E-9 F
DALI ZENSOR 1
increase the sonic value of any 
smaller front speaker by enabling it 
to reproduce all fundamental tones 
properly, both in respect to gain and 
phase.
This measurement displays the SUB 
E-9 F connected to a pair of ZENSOR 1 
in stereo mode. Note the perfect phase 
integration and the summing of the 
main and sub signal.
DALI SPEKTOR 2 and DALI SUB C-8 D
DALI SUB C-8 D
DALI SPEKTOR 2
DALI A/S   www.dali-speakers.com
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Properly set up it has a superior ability 
to integrate with the front speakers 
providing more than just an extension 
of the low frequency range. In fact 
a perfect subwoofer integration will 
The DALI SUB E-9 F clearly has its heart set on high fidelity. 
100.0
dBSPL
90.0
80.0
70.0
60.0
50.0
Frequency Response
DALI ZENSOR 1 and DALI E-9 F
DALI E-9 F
DALI ZENSOR 1
increase the sonic value of any 
smaller front speaker by enabling it 
to reproduce all fundamental tones 
properly, both in respect to gain and 
phase.
This measurement displays the SUB 
E-9 F connected to a pair of ZENSOR 1 
in stereo mode. Note the perfect phase 
integration and the summing of the 
main and sub signal.
The DALU SUB C-8 D will feel equally at home in a movie 
focused surround setup and a compact stereo setup 
meant for mainly musical enjoyment.
Over the years DALI’s engineers have developed a set of 
sound design principles. Today these are applied in the 
creation of any DALI speaker. Naturally our subwoofers 
must be able to enter into any setup without sacrificing 
the purpose of providing wide dispersion, time coherent 
and low-loss performance.








