Accuton AS250-8-552

Beschreibung

The Accuton AS250-8-552 is a 250 mm diameter woofer with an aluminum honeycomb sandwich membrane. The new design enables an ideal acoustic center that is identical to Accuton's CELL tweeter and midrange drivers.

The new overhang construction combines the advantages of traditional overhang and underhang constructions and delivers a high linear excursion with extremely low distortion. A particularly hard aluminum sandwich membrane was developed for the CELL bass drivers, which enables very low delay and energy storage. The hidden centering reduces the overall outer diameter and enables a linear excursion of up to +/- 16 mm. A newly developed centering spider enables large excursion without compression.

We recommend our Accuton AS250-8-552 for use from 20 Hz - 600 Hz.

Short description:

• 25cm subwoofer with  aluminum honeycomb sandwich membrane . It has a rear-ventilated voice coil.

Mechanical data

• total diameter / front panel 250 mm
  
• hole cutout 230  mm
• Minimum front panel thickness 18  mm
  
• height 141  mm
  
• magnet height 56.5  mm
  
• magnet diameter 210  mm
  
• Screw holes screws Din 7984 / Ø 4.50 mm
• Weight 23 kg

Thiele-Small parameters

• sensitivity Lp 87  dB
  
• Resistance (DC) Re 7.3 Ohm
  
• free-air resonance frequency Fs 22 Hz
  
• Equivalence Volume Vas 119 Ltr
  
• Mechanical quality Qms 5.0
  
• Electrical quality Qes 0.40
  
• overall quality Qts 0.38
  
• Effective membrane area Sd 382 cm2
  
• Moving mass Mms 92 Gr
  
• Compliance of the membrane stress Cms 0.57 mm/N
  
• Mechanical resistance Rms 2.52 Kg*S

Voice coil parameters

• load capacity P 300 watts
  
• impedance 8 ohms
  
• Linear deflection Xmax +/-9  mm
  
• Diameter of the voice coil 114  mm
  
• voice coil former material Ti
  
• conductor material Cu
  
• Inductance of the voice coil Le 0.67  mH
  
• Force factor Bl 14.8 N/A
  
• drive variant overhanging
  
• Ferrofluid In the air gap No

Housing recommendation Closed

• Vb: 30L, -9 dB @ 30 Hz, F -3 dB: 51 Hz, Q: 0.71 (standard)
  
• Vb: 80L, -7 dB @ 30 Hz, F -3 dB: 55 Hz, Q: 0.50 (extended bass)

Enclosure recommendation bass reflex

• Vb: 60L, Port diameter: 100 mm, Length: 440 mm, Fres: 27 Hz, F - 3 dB:30 Hz, Q: 0.58 (optimal)
  
• Vb: 80L, Port diameter: 100 mm, Length: 280 mm, Fres: 28 Hz, F - 3 dB:28 Hz, Q: 0.50 (extended bass)

Frequency response

Notice

: Not suitable for use in vehicles.

• This loudspeaker chassis was specially designed for use in  home and studio applications  developed.For  the uses in  automotive sector we recommend the use of the special automotive series  from Accuton, which is offered by Masori upon request.
• The automotive version (Accuton Carhifi Version) from Accuton meets the strict automotive standards and is specially designed for use in cars and a wide variety of other vehicles. It is resistant to vibrations, weather influences, heat and cold that can occur in an automotive environment. This ensures optimal audio quality and reliability.
• Contact us at Masori for more information about the Carhifi Automotive version of Accuton. We will help  You  happy to help you find the right solution for  Your  requirements in the automotive sector and to provide an optimal sound experience in  your  vehicle.