DaytonAudio KABX Manuale utente
KABX DSP Control Software Guide
Overview
•The KABX DSP Control software is
compatible with new generation
Bluetooth 5.0 w/aptX HD KAB amplifiers
when combined with a KPX
programmer. This software offers easy
but extensive DSP customization with no
experience required.
•The software provides simple control of
10 band of PEQ, High Pass Filters, Low
Pass Filters, Compressor / Limiters, Bass
Effects and More
•KPX Programmer connection is only
needed temporarily, DSP presets can be
saved to the KAB amplifier itself and the
programmer can be removed. This also
means that one programmer can
program as many amplifiers as needed.
Overview
What do I need to get started?
•A KPX Programming Board
•A KABX DSP Control compatible KAB
amplifier. This includes KAB amplifiers
with Bluetooth 5.0 w/aptX HD.
•KAB-250v4 (2x50W), KAB-230v4(2x30W), KAB-
100Mv2(1x100W)
•A USB cable with one end being USB
Type C.
•The other end can be either type A or type
C, depending on what type of port you have
on your computer
•A Windows PC with available USB port
and permissions to install the KABX
Software
KAB-250v4
KPX Programmer
KAB-230v4
Connection Process
•Connection of the KPX programmer to your
KABX compatible amplifier is simple, but for
more details see the KPX User Manual.
1. Set your KPX programmer to “KABX”
mode (see back of board)
2. Connect your KPX programmer to your
Windows PC with a USB type C cable
3. Connect your KABX compatible amplifier
to your KPX programmer using the 4-pin
connector included with the KPX
programmer.
4. Launch the KABX software. It should
connect immediately.
Saving to Non-Volatile Memory
(Retaining Settings After Power Cycle)
•While using the KABX Control software, changes to DSP will be
able to be heard immediately, and those changes will exist while
the connected KAB amplifier has power and it turned on.
However, these changes will be lost when power to the KAB
amplifier is lost.
•To prevent this, the current program must be saved to “non
volatile” memory, which means memory that holds data even
when power is lost. To do this, you must press the “save” button
in the top right corner whenever you are ready. This will make
sure your program remains after a power cycle. The software will
also prompt you to save when you exit the program.
•The top bar of the KABX software, when connected to a
compatible amplifier, will display “KABX” or “ * KABX” in green.
This means that the amplifier is connected, but also shows save
status.
•When “KABX” is shown, that means that current DSP preset is saved to non-volatile
memory of the KAB and will be retained even after a power cycle.
•When “* KABX” with an asterisk shows, this means that your DSP preset is NOT saved
to non-volatile memory. This means that even though you can hear the changes you’ve
made, you will lose these changes if power to the KAB is lost. To prevent this lost, press
save in the top right corner.
EQ Controls
•Stereo vs. Mono
•Compatible KAB amplifiers at the time of
release have 2 audio output types. The first
is the stereo powered output via J2, and the
second is a mono, line level output via J12.
These outputs can have completely
independent EQ.
•Bypass
•This button will turn off all bands of EQ, but
will not reset values. Perfect for testing EQ
presets against the original sound.
•Reset
•This button will reset all EQ values to default.
EQ Filter Types
•The KABX DSP software offers 4 filter
types for each EQ band.
•Peaking
•The default and most common type of EQ filter. It
has adjustable center frequency, Q (bandwidth) and
gain value.
•Useful for creating bass boosts, treble boosts and so
much more.
•There is an inverse relationship between the Q
value and the bandwidth of the filter, which means
as you increase the Q value, the bandwidth
reduces, and as you decrease the Q value, the
bandwidth increases
•Notch
•Notch filters will remove a very narrow bandwidth
of frequency content. Useful for removing the
sound caused by an unwanted resonance.
Peaking
Notch
EQ Filter Types
•High Pass
•High pass filters cut out frequencies lower than the targeted
frequency. The high frequencies “pass” through the filter
unaffected. Used in crossover circuits to prevent tweeters
from playing low frequencies, or for protecting ported
systems or small drivers from playing bass notes lower than
they are capable.
•Low Pass
•Low Pass Filters cut out frequencies higher than the targeted
frequency. The low frequencies “pass” through the filter
unaffected. Generally used in crossover circuits to prevent
woofers from playing high frequencies.
•This type of filter is essential for a subwoofer or bass shaker
•The Q value of a HP or LP filter will determine the
alignment of the filter. This will be described on the next
page.
High Pass
Low Pass
High and Low Pass Filters –Slopes and Q
•Slopes
•The slope of the HP or LP filters offered
in the KABX Software is 12 dB per
octave, which can easily be seen in the
software’s graph.
•Higher order (steeper) slopes can be
achieved by using multiple filter bands
set to HP or LP filters.
•The Q value of the HP or LP filter will
determine the alignment of the filter.
•Q = 1.0 –Chebychev
•Q = 0.707 –Butterworth (Maximally flat)
•Q = 0.58 –Bessel
•Q = 0.49 Linkwitz-Riley
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