New! MSW-421
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Special Features:
vented dual magnet system magnetically shielded (90%)
cast aluminum frame
3" (75mm) voice coil
hexagonal shaped aluminum wire Kevlar re-enforced lead wires

GENERAL INFORMATION
Nominal Power Handling (RMS)  P 140 W
Peak Power Handling 800 W
Nominal Impedance Z 8 W
Sensitivity 1W/1M 88 dB
Frequency Response 55 5,800 Hz
Resonant Frequency FS 70 Hz
Diameter
Depth
Cutout
Mounting Depth
5.1" (129 mm)
2.2" (55 mm)
4.3" (110 mm)
2.0" (50 mm)
VOICE COIL PARAMETERS
Voice Coil Diameter f 2" (55 mm)
Voice Coil Height 0.5" (12.5 mm)
Voice Coil Former aluminum
Voice Coil Wire hexagonal shaped aluminum
Number of Layers 2
DC Resistance RE 5.60 W
Voice Coil Inductance @ 1 kHz LBM 0.38 mH
MAGNET STRUCTURAL SYSTEM
Magnet Type triple neodymium
Magnet System vented
Magnetic Gap Height HE 0.23" (5.9 mm)
Flux Density B 0.89 T
BL Product BXL 6.55 NA
Max. Linear Excursion Xmax ± 0.12" (3.0 mm)
WORKING PARAMETERS
Suspension Compliance CMS 675 m M / Newton
Mechanical Q QMS 2.4
Electrical Q QES 0.42
Total Q Q/T 0.35
Moving Mass MMS  7.35 g
Air Load VAS 2.75 L
Cone Material (DPC) damped polymer composite
Effective Piston Area S 54 cm 2
Net Weight 0.98 lbs. (.45 kg)

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Renaissance Audio Group 414 Harvard street   ~  Brookline, MA 02446 - USA ~ tel 617.277.6663 ~ fax 617.277.2415 email  info@renaudio.com
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