Accuton AS190-4-251

Beschreibung

The Accuton AS190-4-251 is a 190mm diameter bass speaker 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 mechanical excursion of up to +/- 16 mm. A newly developed centering spider enables large excursion without compression.

We recommend our Accuton  AS190-4-251 for use from 30 Hz - 1000 Hz.

Short description:

• 19cm subwoofer with aluminum sandwich membrane . It has a rear-ventilated voice coil.

Mechanical data

• Total diameter / front panel 190  mm
  
• hole cutout 170  mm
  
• Minimum front panel thickness 16  mm
  
• height 137  mm
  
• magnet height 52  mm
  
• magnet diameter 156  mm
  
• Screw holes Screws Din 7984 / Ø 4.50  mm
• Weight  14 kg
  

Thiele-Small parameters

• sensitivity Lp 84  dB
  
• Resistance (DC) Re 8.6 Ohm
  
• free-air resonance frequency Fs 33.4 Hz
  
• Equivalence Volume Vas 26.7 Ltr
  
• Mechanical quality Qms 4.75
  
• Electrical quality Qes 0.49
  
• overall quality Qts 0.44
  
• Effective membrane area Sd 202 Cm2
  
• Moving mass Mms 49.4 G
  
• Compliance of the membrane tension Cms 0.46 mm/N
  
• Mechanical resistance Rms 2.18 Kg*S

Voice coil parameters

• load capacity P 250 watts
• impedance 4 ohms
  
• Linear deflection Xmax +/-9  mm
  
• Diameter of the voice coil 78  mm
  
• voice coil former material Ti
  
• conductor material Ccaw
  
• Inductance of the voice coil Le 1.05  mH
  
• force factor Bl 13.5 N/A
  
• drive variant overhanging
  
• Ferrofluid In the air gap No

Housing recommendation Closed

• Vb: 11L, -9dB @ 40Hz, F-3dB: 63Hz, Q: 0.71 (optimal)
  
• Vb: 35L, -7dB @ 40Hz, F-3dB: 70Hz, Q: 0.50 (extended bass)

Enclosure recommendation bass reflex

• 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)

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.