Search Driver; Load Data; Save Data; Printer - Monacor CAAD 3.0 Handbuch

• Mechanical resistance (Rms): Total of all friction
losses by cone suspension, connecting wires, and
air resistance.
This field is calculated.
• Inductivity (Le) in mH: Inductivity of the voice coil
of the driver. Should be stated, if possible. This value
is necessary for the calculation of other parameters.
Not calculated.
• Moving mass (Md) in g: Total of the masses of
cone and centering spider. Md should be stated, if
possible. Necessary for the calculation of other para-
meters.
This field is calculated.
• Force factor (B x L) N/A: This value indicates how
strong the speaker "motor" is and should be stated,
if possible (measured in Newton per Ampere).
This field is calculated.
• Winding height (Hc) in mm: Winding height of the
driver coil.
Only for information purposes. Not calculated.
• Air gap height (Hg) in mm: Height of the air gap in
which the driver coil is moving.
Only for information purposes. Not calculated.
• Power handling (Pn) Wrms: Sine continuous
power handling of the driver.
Only for information purposes. Not calculated.
• Dimensions (W x L or D) in mm: Absolute dimen-
sions of the driver, width x length or diameter in mm.
Necessary for compound calculations.
Not calculated.
• Mounting depth in mm: Mounting depth of the
driver. Necessary for compound calculations.
Not calculated.
Delete driver: If a driver should be deleted from the
database, at first choose the corresponding data-
base and then load the driver to be deleted into the
driver editor. Then activate the item "Delete driver". If
you confirm the question "do you really wish to
delete the driver?", the driver is deleted from the
database.

5.2 Search driver

If a driver with special data or a special name is
searched, in this PULL DOWN menu you are able to
search the driver name, resonance frequency, total Q,
and equivalent volume. Besides the data searched for,
you have also to insert the data tolerance. After insert-
ing, a list of drivers is displayed which correspond to
these data. By double click with the left mouse key
resp. by cursor key selection and the "ENTER" key the
desired driver is loaded in the driver editor.

5.3 Load data

If you have chosen a database, you can load a driver
of this database in the driver editor with this item. At
first you have to state if you wish to load a bass driver,
a midrange, or a high range driver. In a selection list all
drivers of the corresponding file are displayed for
selection.

5.4 Save data

Save data as new: If you have created a new data set,
you have to save it below the menu item "Save data
as new" (see above).
Overwrite actual data: If you have changed data in
the driver editor, they can be included in the data-
base with activating this item.

5.5 Printer

Print screen: The data of the driver editor can be
printed with this item.

5.6 Main menu

By clicking at this item you return to the main menu.

6 Filter

6.1 Crossovers

With CAAD 3.0 you can calculate crossovers of the 1st
up to 4th order in 2-way or 4-way versions. The sche-
matic of this crossover with all components can be dis-
played and printed.
Besides – and this is new – also the sound pressure
curve, the impedance curve, and the curve of the
phase displacement to be expected can be drawn in a
coordinate system. Of course also this graphics can be
printed.
To select the characteristics of the crossover (1st up
to 4th order, Butterworth or Linkwitz-Riley), please
click at the left PULL DOWN window and choose the
corresponding crossover characteristics. Proceed
accordingly to select the number of the crossover ways
(right PULL DOWN window). According to the number
of the crossover ways you are requested in the window
"Data input" to insert the data for the cut-off fre-
quencies and the driver impedances. Then you indi-
cate if you wish to have the schematic or the diagram
displayed.

6.2 Attenuation

It is often necessary to match drivers with a higher
sound pressure to those with a lower sound pressure
and to attenuate them without changing the impe-
dance. CAAD 3.0 calculates attenuators with resis-
tances which are inserted between crossover system
and driver. Alternatively to this a serial resistance is
calculated which, however, influences the total Q (Qts)
of the driver. The necessary input data are limited to
the necessary attenuation in dB and the nominal
impedance of the driver. Also here you can have the
schematic displayed resp. printed.

6.3 Equalization

While calculating crossovers, a known and constant
impedance in the relevant frequency range is assum-
ed. In reality this does not correspond to the actual
values of drivers. With CAAD 3.0 you can calculate an
equalization, both for the increasing impedance at
rising frequency (fz2 due to the voice coil inductivity)
and for the impedance at the driver resonance. Please
insert in the window "Data input" the driver name (not
relevant for the calculation), the resonance frequency
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