Alpine SWR-1241D - Manual (Page 2)

SPECIFICATIONS
Model SWR-1521D SWR-1541D SWR-1221D SWR-1241D SWR-1021D SWR-1041D
Size 15* 15" 12* 12" 10* 10"
Impedance 2Q+2Q 4fi+4fi 2fi+2fi 4fi+4fi 2fi+2fi 4fi+4fi
Power Handling (RMS/Peak) 500W/1500W 500W/1500W 300W/1000W 300W/1000W 300W/1000W 300W/1000W
Frequency Response Fs~1kHz Fs-lkHz Fs~1kHz Fs~1kHz Fs-lkHz Fs-lkHz
Sensitivity* 89dB 89dB 87dB 87dB 85dB 85dB
D.C. Coil Resistance (Re) 1.8 fi + 1.8Q 4.0 fi +4.0fi 1.8 fi + 1.8fi 3.6 fi +3.6 fi 1.8 fi + 1.8fi 3.6 fi +3.6fi
Inductance (Le) 1kHz/20kHz 3.72mH/1.15mH 6.20mH/1.86mH 2.41mH/0.84mH 3.85mH/1.34mH 2.67mH/0.88mH 3.92mH/1.39mH
Free Air Resonance (Fs) 23Hz 24Hz 27Hz 28Hz 29Hz 30Hz
Equivalent Stiffness (Vas) 98L 98L 58L 58L 29L 29L
Qms/Qes/Qts 9.84/0.40/0.38 9.68/0.50/0.48 8.68/0.40/0.38 8.31/0.45/0.43 8.93/0.40/0.38 8.76/0.43/0.41
X max / X peak 16.5mm/33mm 14.5mm/29mm 13.35mm/26.7mm 13.87mm/27.74mm 13.35mm/26.7mm 13.87mm/27.74mm
Mechanical Excursion (P-P) 68mm 68mm 55mm 55mm 55mm 55mm
Gap/Coil Height (Hag/Hvc) 15mm/48mm 15mm/44mm 10mm/36.7mm 10mm/37.74mm 10mm/36.7mm 10mm/37.74mm
Cone Area (Sd) 754.77 cm* 754.77 cm* 467.59 cm* 467.59 cm* 320.47 cm* 320.47 cm*
Diaphragm Material
Kevlar Reinforced
Pulp
Kevlar Reinforced
Pulp
Kevlar Reinforced
Pulp
Kevlar Reinforced
Pulp
Kevlar Reinforced
Pulp
Kevlar Reinforced
Pulp
Spider Material Nomex Nomex Nomex Nomex Nomex Nomex
Magnet Weight 129.60Z 129.60Z 89.40Z 89.40Z 64oz 64oz
Voice Coil Diameter 65mm 65mm 50mm 50mm 50mm 50mm
Displacement (front mount)** 0.249 ft^3 0.249 0.128 ft^'O 0.128 ft''3 0.092 ft'^3 0.092 ft^3
Displacement (rear mount) 0.322 fl^3 0.322 ft''3 0.163 ft^'O 0.163 ft''3 0.115ft''3 0.115ft''3
Added Volume (reverse mount)** 0.162 «^^3 0.162 ft''3 0.073 ft''3 0.073 ft'^3 0.047 ft^3 0.047 r3
Recommended Sealed Box Volume 1.3-2.5 ft''3 1.3-2.5 ft''3 0.7-1.0f^3 0.7-1.Of'^3 0.5-0.8 f''3 0.5-0.8 f'^O
* This commonly misunderstood specification should not be used as a reference for subwoofer output capability.
** Based upon 3/4" (~20mm) baffle thickness, with opening cut to gasket inner diameter
Notes: Thiel-Small parameters were measured and averaged after break-in.
Various measurement techniques may produce different but equally valid results.
All specifications are subject to change without notice
• SPECIFICATIONS
Model SWR-1521D SWR-1541D SWR-1221D SWR-1241D SWR-1021D SWR-1041D
Dimensions 15* 15" 12* 12" 10* 10"
Impedance 2fi+2fi 4fi+4fi 2fi+2fi 4fi+4fi 2fi+2fi 4fi+4fi
Puissance (RMS/Peak) 500W/1500W 500W/1500W 300W/1000W 300W/1000W 300W/1000W 300W/1000W
Réponse en fréquence Fs-lkHz Fs-lkHz Fs-lkHz Fs-lkHz Fs-lkHz Fs-lkHz
Sensibilité 89dB 89dB 87dB 87dB 85dB 85dB
Résistance en continu (Re) 1.8 fi + 1.8fi 4.0 fi +4.0fi 1.8 fi + 1.8fi 3.6 fi +3.6 fi 1.8 fi + 1.8fi 3.6 fi +3.6fi
Inductance (Le) 1kHz/20kHz 3.72mH/1.15mH 6.20mH/1.86mH 2.41mH/0.84mH 3.85mH/1.34mH 2.67mH/0.88mH 3.92mH/1.39mH
Fréquence de résonnance (Fs) 23Hz 24Hz 27Hz 28Hz 29Hz 30Hz
Raideur equivalente (Vas) 98L 98L 58L 58L 29L 29L
Qms/Qes/Qts 9.84/0.40/0.38 9.68/0.50/0.48 8.68/0.40/0.38 8.31/0.45/0.43 8.93/0.40/0.38 8.76/0.43/0.41
X max / X crête 16.5mm/33mm 14.5mm/29mm 13.35mm/26.7mm 13.87mm/27.74mm 13.35mm/26.7mm 13.87mm/27.74mm
Excursion mécanique (P-P) 68mm 68mm 55mm 55mm 55mm 55mm
Largeur Entrefer/Bobime (Hag/Hvc) 15mm/48mm 15mm/44mm 10mm/36.7mm 10mm/37.74mm 10mm/36.7mm 10mm/37.74mm
Surface de cône (Sd) 754.77 cm* 754.77 cm* 467.59 cm* 467.59 cm* 320.47 cm* 320.47 cm*
Membrane Kevlar renforcé Kevlar renforcé Kevlar renforcé Kevlar renforcé Kevlar renforcé Kevlar renforcé
Suspension Nomex Nomex Nomex Nomex Nomex Nomex
Poids de l'aimant 129.60Z 129.60Z 89.40Z 89.40Z 64oz 64oz
Diamètre de bobine 65mm 65mm 50mm 50mm 50mm 50mm
Displacement (en avant) 0.249 ft^'O 0.249 n'‘Z 0.128 ft'^O 0.128 ft''3 0.092 ft'^3 0.092 ft^'O
Displacement (en arrière) 0.322 «^^3 0.322 fi'^Z 0.163 ft^3 0.163 ft'^O 0.115ft^3 0.115ft''3
Volume en plus (en renvèrse) 0.162 ft^3 0.162 «-^3 0.073 «^^3 0.073 ft''3 0.047 ft^3 0.047 ft^3
Volume de charge recommandé 1.3-2.5 ft^3 1.3-2.5 ft'^3 0.7-1.0f^3 0.7-1.0P3 0.5-0.8 f'^3 0.5-0.8 f'^O