RCF - LF21N451
620 €
excl VAT
including eco-part : 0,90 €
Out of stock
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LF21N451 from RCF, 21" (53cm) 1500 Watts AES / 8 Ohms loudspeaker for subwoofers with flush or bass reflex loading. 4.5" Inside/Outside voice coil with double silicone spider. Neodymium magnet and coil cooling system optimised to limit thermal compression.
ARTICLE N° 72246
Presentation
Whether loaded with Horn or Bass-Reflex, the bass performance is impressive. The high force factor (BL) of 34.5 produces dynamic, fast bass, ideal for large-scale concerts or outdoor performances.
Other features
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Woofer type - Cone driver
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Category diameter 53 cm
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Magnet type Neodymium Ø 148 mm
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Total outside diameter 547 mm
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Flush-mounted diameter 508 mm
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Depth 249 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 98,5 dB
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Rated power 1500W
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Max power 3000W
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Bandwidth 30-1000 Hz
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Thiele and Small parameters :
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Fs 30 Hz
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Re 5.6 ohm
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Qes 0.27
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Qms 6.1
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Qts 0.26
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Vas 375 L
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Sd 1730 cm²
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Efficiency 4
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Xmax 13.2 mm
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Mms 315 gr
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BL 34.5 T.m
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Le 3.0 mH
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EBP 111
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Shipping weight 13.2kg
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.
