6
KCS Monitor Tutorial
Klippel R&D System
To prevent low-frequency content from producing displacement and power consumption
without significant sound pressure contribution, it is highly recommended to select at least a
4
th
(sealed box) or 6
th
(vented/passive radiator) order alignment.
Find more detailed information and theory about the alignment filters under
How to set an Alignment – Workflow
1.
Connect the KCS hardware and open the KCS Monitor operation including initial data for the
particular speaker.
Connect to the device
(see
) to be able to change KCS setup
parameters on the KCS Monitor’s property page.
KCS must not be running
on the device yet.
2.
Choose a
desired transfer behavior
(e.g. Butterworth 6
th
order) and a
low
cut-off frequency
(e.g. half of the system resonance frequency found in the window
Linear Speaker
Parameters
). You can see the desired transfer function by
a.
(
NAD platform
) opening the window
Sound Pressure Hpfar(f).
b.
(
other platforms
) pressing the
Calculate Alignment
button in the KCS Monitor’s
property page. A new operation is created which comprises the according transfer
function.
3.
(
NAD platform only
) Compensate the alignment gain to
avoid clipping
:
a.
Start the Nuvoton
A6
tool
.
b.
In
A6
, connect to the device via
Communication
UART (Mutex)
. Select the same
COM port as set in the KCS Monitor.
c.
Go to the
Limiter
category and set the limiter gain in the A6-Tool to compensate for
the alignment gain
4.
Run
the KCS Monitor operation and start playing music and/or test signals.
Equalization
After the alignment is applied, the overall frequency response can be adjusted by using the
A6 tool
or other external tuning software running on the PC or on another hardware. It is recommended to
use the Klippel QC system for measuring the frequency response, see document
[KCS4] KCS
Evaluation Tutorials
.
