Accuton AS190-9-251

Description

The Accuton AS190-9-251 is a bass speaker with a diameter of 190 mm and an aluminum honeycomb sandwich cone. The new design provides an ideal acoustic center that is identical to Accuton's CELL tweeter and midrange drivers.

The innovative 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 cone 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 AS190-9-251 for applications from 30 Hz - 1000 Hz.

Brief description:

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

Mechanical data

• Overall diameter / front panel 190 mm
  
• Hole cut-out 170 mm
  
• Minimum front panel thickness 16 mm
  
• Overall 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(direct current) Re 8.6 Ohm
  
• Outdoor resonance frequency Fs 33.4 Hz
  
• Equivalent volume Vas 26.7 Ltr
  
• Mechanical quality Qms 4.75
  
• Electrical quality Qes 0.49
  
• Overall quality Qts 0.44
  
• Effective diaphragm area Sd 202 cm2
  
• Moving mass Mms 49.4 Gr
  
• Compliance Membrane tension Cms 0.46 mm/N
  
• Mechanical resistance Rms 2.18 Kg*S

Voice coil parameters

• Load capacity P 250 watts
  
• Impedance 9 Ohm
• 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 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

Note

Not suitable for use in vehicles.

• This speaker chassis was specially developed for use in home and studio applications . For applications in the automotive sector, we recommend using the special automotive series from Accuton, which is available from Masori on request.
• The automotive version (Accuton Carhifi version) of Accuton meets the strict automotive standards and is specially designed for use in passenger cars and various other vehicles. It is resistant to vibrations, weather influences, heat and cold that can occur in an automotive environment. This ensures optimum audio quality and reliability.
• Contact us at Masori for more information on the Carhifi Automotive version of Accuton. We are happy to help you to find the right solution for your automotive requirements and to enable an optimal sound experience in your vehicle.