Caratteristiche
☑ 4,5 - inch fiberglass Inside/Outside copper voice coil
☑ 4000 Watt continuous program power handling
☑ 97 dB Sensitivity
☑ 28 Hz - 1 kHz Frequency range
☑ Dual-forced air ventilation for minimum power compression
☑ Dual spider designed with silicon based damping control
☑ BL of 30.5 Txm to provide a faster and accurate low frequency
The LF21X451 low frequency transducer is the result of many years of R&D developments with the goal of creating new levels of professional audio performance standards. This products features advancements and improvements in all the key areas of transducer technology. Incredibly linear frequency response characteristics, the highest power handling of any comparable transducer, the lowest power compression. The LF21X451 features a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround: this combination provides remarkable strength and a peak to peak maximum excursion of 54 mm. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling.
RCF LF21X451
570,35 €
Tasse incluse
Spedito entro 5/7 Giorni
Caratteristiche
☑ 4,5 - inch fiberglass Inside/Outside copper voice coil
☑ 4000 Watt continuous program power handling
☑ 97 dB Sensitivity
☑ 28 Hz - 1 kHz Frequency range
☑ Dual-forced air ventilation for minimum power compression
☑ Dual spider designed with silicon based damping control
☑ BL of 30.5 Txm to provide a faster and accurate low frequency
The LF21X451 low frequency transducer is the result of many years of R&D developments with the goal of creating new levels of professional audio performance standards. This products features advancements and improvements in all the key areas of transducer technology. Incredibly linear frequency response characteristics, the highest power handling of any comparable transducer, the lowest power compression. The LF21X451 features a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround: this combination provides remarkable strength and a peak to peak maximum excursion of 54 mm. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling.
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| Specifiche generaliParametri di Thiele & Small | Diametro Nominale | 21 inch / 533 mm |
|---|---|---|
| Impedenza nominale (ohm) | 8 ohm | |
| Potenza musicale (watt) | 4000 W | |
| Potenza | 2000 W | |
| Sensibilità (dB) | 97.0 dB | |
| Gamma di frequenza | 28 - 1000 Hz | |
| Diametro effettivo del pistone | 470 mm / 18.5 inch | |
| Escursione max prima della rottura | 54 mm / 2.13 inch | |
| Impedenza Minima (ohm) | 6.7 ohm | |
| Diametro Bobina | 4.5 inch / 114 mm | |
| Materiale di avvolgimento della bobina | Copper | |
| Lunghezza della bobina | 34 mm / 1.34 inch | |
| Numero di strati | 2 | |
| Strati bobina (tipologia) | inside/outside | |
| Spessore piastra superiore | 15 mm / 0.59 inch | |
| Design del cono | Curved | |
| Materiale del surround | Polycotton | |
| Design del surround | Triple roll | |
| Magnete | Ceramic | |
| Aerazione Dual-Force | Yes | |
| Spider | 3 | |
| Frequenza di Risonanza (Fs) (Hz) | 28 Hz | |
| Resistenza (Re) (ohm) | 5.40 ohm | |
| Fattore di merito meccanico (Qms) | 6.90 Qms | |
| Fattore di merito elettrico (Qes) | 0.39 Qes | |
| Fattore di qualità totale (Qts) | 0.37 Qts | |
| Fattore Bl (Bl) (T x m) | 30.50 T x m | |
| Massa mobile effettiva (Mms) g | 355.0 g | |
| Volume equivalente alla cedevolezza (Vas) (litri) | 385.0 liters | |
| Area del pistone effettiva (Sd) (m2) | 0.170 m2 | |
| Massima escursione lineare (Xmax) (mm) | 14 mm | |
| Induttanza della bobina @ 1 kHz (Le1k) (mH) | 2.90 mH | |
| Efficienza Half-Space (Eff) (%) | 2.20% | |
| Informazioni di montaggio | Diametro complessivo | 547 mm / 21.54 inches |
| Diametro esterno vite | 527 mm / 20.75 inch | |
| Diametro foro vite | 7 mm / 0.28 inch | |
| Foro montaggio anteriore al pannello | 512 mm / 20.16 inch | |
| Alloggiamento posteriore | 512 mm / 20.16 inch | |
| Volume occupato dal driver | 6.5 liters / 0.26 ft3 | |
| Conformità agli standard | Standard di sicurezza | CE compliant |
| Dimensioni / Peso | Altezza | 245 mm / 9.65 inches |
| Diametro | 547 mm / 21.54 inches | |
| Peso | 15.5 kg / 34.17 lbs | |
| Informazioni di spedizione | Altezza imballaggio | 284 mm / 11.18 inches |
| Larghezza imballaggio | 584 mm / 22.99 inches | |
| Profondità imballaggio | 604 mm / 23.78 inches | |
| Peso imballaggio | 18.5 kg / 40.79 lbs |
11100092
Scheda dati
- Pollici
- 21"