RCF - LF21X451
540 €
excl VAT
including eco-part : 0,90 €
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Speaker driver
RCF LF21X451 21" Subwoofer 2000 Watts / 8 Ohms. Ferrite magnet, 4.5" Inside/Outside voice coil and double silicone Spider. Factor of force of more than 30 and great possible travel with an Xmax Peak to Peak max of 54mm.
ARTICLE N° 72250
Presentation
These high-level characteristics mean that the LF21X451 is ideally suited to subwoofers with Bass Reflex or Horns for outdoor use, but also for club or large-scale applications, offering deep bass while retaining attack and articulation.
Other features
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Woofer type - Cone driver
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53 cm diameter class
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Ferrite magnet type Ø 245 mm
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Total outside diameter 547 mm
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Flush-mount diameter 508 mm
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Depth 245 mm
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Brand RCF
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Type Cone loudspeaker
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Impedance (Zn) 8 ohm
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Coil diameter 4.5
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Sensitivity 97 dB
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Nominal power 2000W
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Max power 4000W
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Bandwidth 28-1000 Hz
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Thiele and Small parameters :
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Fs 28 Hz
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Re 5.4 ohm
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Qes 0.39
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Qms 6.9
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Qts 0.37
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Vas 385 L
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Sd 1730 cm²
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Efficiency 2.2
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Xmax 13.5 mm
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Mms 355 gr
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BL 30.5 T.m
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Le 1.5 mH
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EBP 72
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Shipping weight 18.5kg
Additional documents
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Based in Italy since 1949, RCF develops products and components covering virtually every aspect of the audio chain to meet the needs of musicians, DJs, sound engineers, system integrators and production companies. RCF is renowned for its ART PA speakers, loudspeakers, mixing desks and AYRA studio monitors.
