- Artikel-Nr.: AS2508552
11" (25cm) Cell Concept Keramik- Sandwich Tieftöner, 8 Ohm, 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 AS250-8-552 for an application from 20 Hz - 600 Hz.
Vented box design parameters:
- Vb: 60L, Port diameter: 100mm, Length: 440mm, Fres: 27Hz, F-3dB: 30Hz, Q: 0.58 (optimal)
- Vb: 80L, Port diameter: 100mm, Length: 280mm, Fres: 28Hz, F-3dB: 28Hz, Q: 0.50 (extended bass)
Closed box design parameters:
- Vb: 30L, -9dB @ 30Hz, F-3dB: 51Hz, Q: 0.71 (typical)
- Vb: 80L, -7dB @ 30Hz, F-3dB: 55Hz, Q: 0.50 (extended bass)
Mechanical Data:
- Overall diameter/square: 250 mm
- Cutout diameter/square: 227 mm
- Frontplate depth: 18 mm
- Overall depth: 141 mm
- Motor assembly depth: 56 mm
- Motor assembly diameter: 210 mm
- Screw fitting: DIN 7984, 4 mm
- Terminal: + : 6.3 x 0.8 / - : 4.8 x 0.8
- Shipping weight /net weight (one piece): 14,5 / 14 kg
- Shipping box size (pair): 340 / 230 / 340 mm
Thiele / Small Parameter:
- Sensitivity Lp (2.83V / 1m): 87 dB
- DC-resistance Re: 8,0 Ohm
- Resonance frequency Fs: 20 Hz
- Equivalent volume of air Vas: 159 L
- Mechanical Q Qms: 5,00
- Electrical Q Qes: 0,35
- Total Q Qts: 0,33
- Effective piston area Sd: 382 cm²
- Moving mass Mms: 88 g
- Suspension compliance Cms: 0,72 mm/N
- Mechanical resistance Rms: 2,4 kg * s
Voice Coil Data:
- Power handling P: 300 Watt
- Linear excursion xmax: +/- 9 mm
- Voice coil diameter: 114 mm
- Voice coil former material: Ti
- Voice coil material: CU
- Voice coil inductance Le: 0,5 mH
- Force factor Bl: 16
- Motor type: Overhung
- Ferrofluid: no
Massives Stück High-Tech
Absoluter Ausnahmetieftöner, auf der High-End zum ersten Mal in einer 35.000,- Euro Box gehört und sofort geordert. Ich habe ihn in ein bestehendes Projekt mit C90 Cell Mitteltöner und einem Mundorf AMT integriert. Alleine die Haptik des Treibers spricht schon Bände. Pulvertrocken, schnell und abgrundtief, der AS250-8-552 ist einer der Top Bässe im Accuton Programm.
