PRO AV CATALOG
WOOFER
Series: Precision Transducers
Model: LF21N451
- 4,5 - inch Inside/Outside copper voice coil
- 3000 Watt continuous program power handling
- 98.5 dB Sensitivity
- 30 Hz - 1 kHz Frequency range
- Dual-forced air ventilation for minimum power compression
- 4,5 - inch Inside/Outside copper voice coil
- 3000 Watt continuous program power handling
- 98.5 dB Sensitivity
- 30 Hz - 1 kHz Frequency range
- Dual-forced air ventilation for minimum power compression
- Dual spider designed with silicon based damping control
- BL of 34.5 Txm to provide a faster and accurate low frequency.
- Spec Sheet available - Yes
- Maximum Frequency Response (Bandwidth): 1000 Hz
- Maximum Frequency Response (Bandwidth): 1 kHz
- Minimum Frequency Response (Bandwidth): 30 Hz
- Minimum Frequency Response (Bandwidth): 0.03 kHz
- Impedance: 8 ohm
- Sensitivity: 98.50 dB
- Depth: 9.84 in
- Shipping Weight: 24.03 lbs
- Speaker Diameter (Driver): 20.87 in
- Number of Bands: 2
- Power Handling: 3000 Watt
- Color: Black
- Effective Piston Diameter: 470 / 18.5 mm/inch
- Max Excursion Before Damage (peak to peak): 58 / 2.28 mm/inch
- Minimum Impedance: 7.1 ohm
- Voice Coil Diameter: 115 / 4.5
- Voice Coil Material: Copper
- Voice Coil Winding Depth: 34/1.33 mm/inch
- Number of layers: 2
- Kind of layer: outside
- Top Plate Thickness: 15/0.6 mm/inch
- Cone Material: No pressed pulp
- Cone design: Straight
- Surround Material: Polycotton
- Surround design: M - roll
- DC Resistance: 5.6 ohm
- Mechanical factor: 6
- Electrical factor: 0.27
- Total factor: 0.26
- Bl Factor: 34.5 T · m
- Effective Moving Mass: 315 g
- Equivalent Cas air load: 375 liters
- Effettive piston area: 0.173 m2
- Voice - coil inductance @ 1KHz: 36 MH
- Half-space efficiency: 4 %
Suggested Products

Advanced Sound & Communication
3817 Broadway
Kansas City, MO 64111
USA
(816) 931-9525
www.advancedsoundkc.com
