Accuton Cell Concept AS190-9-251 8" Aluminum Sandwich Dome Woofer
Special Order - Please allow 30-45 days once your order is placed.
LEAP Design with C90-6-724 5″ midrange + C25-6-158 tweeter
- Full featured Cell concept
- Ideal acoustical center
- No compression design
- Proprietary motor system
- 30Hz - 1000Hz usuable range in bass reflex enclosure
The AS190-9-251 is an 8 inch bass driver with aluminum sandwich dome, being the first in an entirely new approach to accuton speaker design. Note that the OD is 7.5", but piston area is that of a normal 8" driver.
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 AS190-9-251 for an application from 30 Hz – 1000 Hz.
Click here to view full specs on Accuton website.
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)
Specification |
|
Value |
Unit |
Overall diameter |
|
190 |
mm |
Cutout Diameter/Square |
|
170 |
mm |
Min. frontplate thickness |
|
16 |
mm |
Overall depth |
|
137 |
mm |
Motor assembly depth |
|
52 |
mm |
Motor assembly diameter |
|
156 |
mm |
Screwfitting |
|
DIN 7984 / Ø 4.50 |
mm |
Terminal |
|
+: 6.3 x 0.8 / -: 4.8 x 0.8 |
mm |
Shipping weight (pair) |
|
14 |
Kg |
Shipping box size (pair) |
|
245/440/245 |
mm |
|
|
|
Specification |
|
Value |
Unit |
Sensitivity (2.83V / 1m) |
Spl |
84 |
dB |
DC-resistance |
Re |
8.6 |
Ohm |
Resonance frequency |
Fs |
33.4 |
Hz |
Equivalent volume of air |
Vas |
26.7 |
ltr |
Mechanical Q |
Qms |
4.75 |
|
Electrical Q |
Qes |
0.49 |
|
Total Q |
Qts |
0.44 |
|
Effective piston area |
Sd |
202 |
Cm2 |
Moving mass |
Mms |
49.4 |
g |
Suspension compliance |
CMs |
0.46 |
mm/n |
Mechanical resistance |
Rms |
2.18 |
Kg*s |
|
|
|
Specification |
|
Value |
Unit |
Power handling |
P |
250 |
W |
Linear excursion |
Xmax |
+/-9 |
mm |
Voice coil diameter |
|
78 |
mm |
Voice coil former material |
|
Ti |
|
Voice coil material |
|
CCAW |
|
Voice coil inductance |
Le |
1.05 |
mH |
Force factor |
Bl |
13.5 |
N/A |
Motor type |
|
Overhung |
|
Ferrofluid filling |
|
No |
|
|
Specs for optional 4 ohm version AS190-4-251 (curves not available yet):
Re: 4 Ohms
Fs: 38Hz
Vas: 20L
Mms: 49,5gr.
Sd: 202cm²
Qe: 0.47
Qm: 5
Qt: 0.43
BL: 10.1