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audison Prima AP 570 Coaxiallautsprecher-System (6 x 9 '' / 24 mm)
Speaker systems developed using the same performance targets as the Prima
amplifiers. Astonishing efficiency, fundamental to an OEM upgrade speaker, in
conjunction with the natural sound and high power handling of a premium quality
speaker. The coax models tout the maximum in technological expression: a
concentric tweeter with acoustic lens correction combined with a pulp cone and a
32 mm (1.25 in.) voice coil. The high power handling and consequent bass
articulation, along with dispersion and phase consistency in the high frequency
range, provide the ability to achieve the performance of a competent 2-way
system in those cars where this type of system is not feasible due to physical
restraints.
With the Prima speaker range, different solutions have been introduced to
simplify, to the maximum extent, OEM Integration and achieve a result capable of
satisfying the Audison quality criteria. The electro-acoustic designers focused
their attention on those drivers dedicated in reproducing the whole audio range
the coaxial, as these are those most critical in reconstructing the sound stage
and so in recreating the "live" effect in a Car Audio system. By using advanced
technologies such as Finite Element Method (FEM) modelling, as well as a
prolonged "Voicing" phase, consisting of in-car listening sessions, it has been
decided to adopt a concentric tweeter within the woofer, providing one single
point of emission. This typology of speaker ensures that the musical signal is
reproduced with high linearity of acoustic phase; therefore the listener
perceives it as being disarmingly natural. In order to control dispersion of the
high frequency range, the concentric tweeter features an acoustic lens
specifically designed to ensure an extremely linear frequency response when
installed in the door, thus entirely off-axis. The combination of such build
choices offer the possibility to achieve performance and sound quality
comparable to a two-way system for those vehicles prohibiting this type of
speaker installation.
On top of this, a believable acoustic sound stage is
projected towards the listener. The concentric tweeter also provides the ability
to mount the speakers in extreme locations. As an example, in installations
where the tweeter of a typical coaxial driver protrudes and may come in contact
with the OEM door panel/grille, the Prima line makes the installation simple and
reliable. It was during the aforementioned "Voicing" phase that the Audison
designers decided to employ a 32 mm pure copper voice coil for the coax woofers;
an unusual choice from a technical and cost standpoint for this market range
where most competitive product employs a 25 mm coil. The reasons behind that
choice can be found in the will to respect the two main goals of this project:
high power handling and maximum efficiency. In fact, combined with an amplifier,
the 32mm coil ensures musical reproduction void of compression, especially
during musical peaks where the motor assembly has to withstand mechanical and
thermal stress. The efficiency has been maximised by eliminating low pass
crossover components for the woofer: even just a simple filter inductor in
series with the woofer, due to the resistance of its winding, introduces a loss
which in turn lowers efficiency and sound pressure level. By not employing any
type of filter, our designers had to optimize the cone profile in each model
using the Klippel R&D Scan Vibrometer to obtain a calibrated "mechanical"
low-pass cut-off frequency, therefore achieving a frequency response close to
that of a filtered woofer! The result of this exhausting work of research gave
life to a series of speakers capable of handling noticeable power combined with
high efficiency and a balanced timbre.
APX 690
The APX 690 coax, specifically designed for a rear deck mount,
boasts a 40 mm tweeter with horn loading, ensuring efficiency close to 96 dB!
Besides, an acoustic lens is applied to the tweeter, improving the horizontal
dispersion to maximize its performance in the less than ideal rear deck mount.
To compensate for the natural loss of energy occurring beyond 10 kHz, the APX
690 also features a PEI (polyethylene injected) supertweeter, which boosts the
response of the very high frequency ranges. For all of the models, deep
attention has been put in the installation ergonomics with the target of easing
OEM Integration as much as possible. In order to achieve this goal, the Audison
designers developed a low profile basket with a very acoustically transparent
design featuring straight spokes coated with abrasion-resistant and
scratch-proof material. The fast-on terminals differ as the OEM standards
require, in order to prevent any polarity inversion in the connection, with
their 4,8 mm positive pole and 2,8 mm negative poles. They also feature a
protective cover, avoiding short circuits with the metal car parts and
resistance to high temperatures.
audison Prima AP 690 Koaxial Lautsprecher System im Überblick:
1 Concentric Coaxial Tweeter: tweeter is mounted within the
woofer with one single point of emission providing consistent phase. response,
with an accurate recreation of the sound stage comparable to that of a component
system.
2 Tweeter features an acoustic lens specifically
designed to ensure an extremely linear frequency response, even in off-axis
placement, typical of in-door installations.
3 32 mm pure
copper voice coil, for high power handling and outstanding low frequency
control.
4 Overall mounting depth optimized for OEM
Integration thanks to the concentric tweeter and the low profile basket.
5 Water-repellent treated paper cone, featuring a profile
developed with FEM (Finite Element Method) simulation technology and optimized
with the Klippel Scan Vibrometer.
6 TPU (Thermoplastic
Polyurethane) surround, featuring the exclusive shallow "Triple Wave" profile,
for maximum excursion linearity.
7 Compact basket,
protected by abrasion-resistant and scratchproof coating, the motor affixed with
damping epoxy adhesive.
8 High current fast-on terminal
with double contact on positive and negative poles for high flexibility and
quick connection. The terminal features a temperature resistant plastic cover,
protecting it against accidental short circuits.
9
Developed with the KLIPPEL suite.
Technische Daten
System: 6x9" 2-Wege koaxial
Belastbarkeit: 100 / 300 W RMS / Peak
Impedanz: 4
Ohm
Frequenzbereich: 40 - 23 kHz
Schwingspule: 25 mm
SPL: 96 dBA
Parameter: X-Max: + / - 3,5 mm
Re: 3 Ohm
Fs: 60
Hz
Le: 0,28 mH
VAS: 32 l
Mms: 16,6 g
Cms: 0,43 mm/N
BL: 5,2 T-m
Qts: 0,64
Qes: 0,7
Qms: 7,6
Abmessungen
Woofer (Ø): 6 x 9''
Tweeter (Ø): 40
mm (1,58'')
Super Tweeter (Ø): 15 mm (0,6'')
Magnet Größe: 90 x 32 x 15
mm (3,54 x 1,26 x 0,59'')
Schwingspule (Ø): 25 mm (1'')
Gewicht eines
Lautsprechers: 1,225 kg
Lieferumfang: 1 Koaxial-Lautsprechersystem inkl.
Produktanleitung und Einbauzubehör
Grill ist optional erhältlich - einfach
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