SB ACOUSTICS SB23MFCL45-8 Polypropylene Subwoofer User Guide

SB ACOUSTICS SB23MFCL45-8 Polypropylene Subwoofer

Product Information

Specifications :

• Nominal Impedance: 8 ohms

• DC resistance, Re: 6.2 ohms

• Voice coil inductance, Le: 1.02 mH

• Effective piston area, Sd: 210
  cm2

• Voice coil diameter: 45.5 mm

• Voice coil height: 29.2 mm

• Air gap height: 8 mm

• Linear coil travel (p-p): 21 mm

• Magnetic flux density: 1.03 T

• Magnet weight: 2.0 kg

• Net weight: 4.7 kg

• Free air resonance, Fs: 28.5 Hz

• Sensitivity (2.83 V / 1 m): 85 dB

• Mechanical Q-factor, Qms: 7.3

• Electrical Q-factor, Qes: 0.46

• Total Q-factor, Qts: 0.43

• Moving mass incl. air, Mms: 53 g

• Force factor, Bl: 11.3 Tm

• Equivalent volume, Vas: 37 liters

• Compliance, Cms: 0.59 mm/N

• Mechanical loss, Rms: 1.3 kg/s

• *Rated power handling:* 150 W (IEC 268-5, T/S parameters measured on drive units that are broken in)

Product Usage Instructions

Installation:

Ensure the product is mounted securely in a suitable enclosure with proper ventilation.

Connection:

Connect the speaker wires to the designated terminals ensuring correct polarity.

Power Handling:

Avoid exceeding the recommended power handling to prevent damage to the product.

Maintenance:

Regularly inspect the speaker for dust accumulation and clean using a soft, dry cloth if necessary.

Troubleshooting:

If experiencing issues with sound quality or performance, check connections and consult the user manual for troubleshooting tips.

FAQ

• Q: What is the sensitivity of the speaker?
  • A: The sensitivity of the speaker is 85 dB at 2.83 V / 1 m.
• Q: What is the nominal impedance of the speaker?
  • A: The nominal impedance of the speaker is 8 ohms.
• Q: What is the recommended power handling of the speaker?
  • A: The recommended power handling of the speaker is 150 W.
• Q: How should I clean the speaker?
  • A: To clean the speaker, use a soft, dry cloth to gently wipe away any dust or debris.
• Q: What should I do if I encounter sound quality issues?
  • A: Check the connections and consult the user manual for troubleshooting steps if you experience sound quality issues.

FEATURES

• Long stroke design
• Linear high-stability suspension
• Low-damping rubber surround
• Long copper voice coil
• Coil conducting reinforced fiore glass
• Very stiff mineral-filled Polypropylene cone
• Vented cast aluminium chassis
• Large vented motor system
• Long-life silver lead wires
• Optimized for smaller enclosures

DIMENSIONS

Specs

• Nominal Impedance: 8
  

• DC resistance, Re :6.2
  

• Voice coil inductance, Le :1.02 mH
  

• Effective piston area, Sd: 2 210 cm
  

• Voice coil diameter: 45.5 mm

• Voice coil height: 29.2 mm

• Air gap height: 8 mm
  

• Linear coil travel (p-p): 21 mm

• Magnetic flux density: 1.03 T
  

• Magnet weight :2.0 kg

• Net weight: 4.7 kg

• Free air resonance, Fs:2 8.5 Hz 
  

• Sensitivity (2.83 V / 1 m): 85 dB
  

• Mechanical Q-factor, Qms: 7.3
  

• Electrical Q-factor, Qes: 0.46
  

• Total Q-factor, Qts: 0.43
  

• Moving mass incl.air, Mms: 53 g
  

• Force factor, Bl: 11.3 Tm
  

• Equivalent volume, Vas: 37 liters
  

• Compliance, Cms: 0.59 mm/N
  

• Mechanical loss, Rms: 1.3 kg/s
  

• *Rated power handling:** 150 W

IEC 268-5, T/S parameters measured on drive units that are broken in.

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