AS190-9-252

AluminumSandwich Bass

DOMEMATERIAL:
AluminumSandwich
APPLICATION:
Bass
NOMINAL DIAMETER:
190 mm
SENSITIVITY:
85 dB
MAIN FEATURES:
FULL FEATURED CELL CONCEPT
IDEAL ACOUSTICAL CENTER
NO COMPRESSION DESIGN
PROPRIETARY MOTOR SYSTEM
30 HZ - 1 KHZ IN VENTED BOX

AS190-9-252

The AS190-9-252 is an 8 inch bass driver with aluminum honeycomb sandwich dome, being the first in an entirely new approach to accuton speaker design. An ideal acoustical center has been achieved, which is identical with our CELL tweeters and midranges. Its novel designed overhung motor combines the advantages of traditional over- and underhung designs, delivering high linear excursion and ultra low distortion. An exceptionally hard aluminum sandwich dome was developed for the CELL bass drivers that allows for negligible delay and energy storage. The hidden surround serves for reduced outer diameter and linear excursion of +/- 16mm. A new developed spider shape makes huge excursion without compression possible. We recommend our AS190-9-252 for an application from 30 Hz – 1000 Hz.

 

Vented box design parameters:

Vb: 24L, Port diameter: 70mm, Length: 300mm, Fres: 36Hz, F-3dB: 36Hz, Q: 0.58 (optimal)

Vb: 35L, Port diameter: 70mm, Length: 245mm, Fres: 33Hz, F-3dB: 30Hz, Q: 0.50 (extended bass)

Closed Box design parameters:

Vb: 11L, -9dB @ 40Hz, F-3dB: 63Hz, Q: 0.71 (typical)

Vb: 35L, -7dB @ 40Hz, F-3dB: 70Hz, Q: 0.50 (extended bass)

Mechanical Data
Overall diameter/square
mm 
190 
Cutout diameter/square
mm 
167 
Frontplate depth
mm 
16 
Overall depth
mm 
135.5 
Motor assembly depth
mm 
52 
Motor assembly diameter
mm 
156 
Screw fitting
 
DIN 7984, 4mm 
Terminal
mm 
+ : 6.3 x 0.8 / - : 4.8 x 0.8 
Shipping weight /net weight (one piece)
kg 
6.5 / 6 
Shipping box size (pair)
mm 
245 / 220 / 245 
Thiele/Small Parameters
Sensitivity (2.83V / 1m)
dB 
85 
Lp
DC-resistance
Ohm 
Re
Resonance frequency
Hz 
39 
Fs
Equivalent volume of air
20 
Vas
Mechanical Q
 
Qms
Electrical Q
 
0.48 
Qes
Total Q
 
0.45 
Qts
Effective piston area
cm² 
202 
Sd
Moving mass
48 
Mms
Suspension compliance
mm/N 
0.35 
Cms
Mechanical resistance
kg * s 
2.3 
Rms
Voice Coil Data
Power handling
Watt 
250 
Linear excursion
mm 
+/- 9 
Xmax 
Voice coil diameter
mm 
78 
 
Voice coil former material
 
Ti 
 
Voice coil material
 
CCAW 
 
Voice coil inductance
mH 
0.6 
Le 
Force factor
N/A 
13.6 
Bl 
Motor type
 
Overhung 
 
Ferrofluid filling
 
no 
 
Frequency Response [dB]
Impedance [Ohm]
Harmonic Distortion [%]

Thiel & Partner GmbH

Kantstraße 1

D-50259 Pulheim

t +49 (0) 22 38 / 475475

info@accuton.com