New! MSW-821
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Special Features:
Cast aluminum frame
Vented dual magnet system
Magnetically shielded (90%)
Shallow mounting depth (2.3" ~ 58 mm) 3" (75mm) voice coil
Hexagonal shaped aluminum wire
Kevlar re-enforced lead wires

GENERAL INFORMATION
Nominal Power Handling (RMS)  P 175 W
Peak Power Handling   1,000 W
Nominal Impedance Z 8 W
Sensitivity 1W/1M   90 dB
Frequency Response   30 – 2,800 Hz
Resonant Frequency FS 30 Hz
Diameter
Depth
Cutout
Mounting Depth
  8.8" (224 mm)
2.6" (66 mm)
7.5" (191 mm
2.3" (58 mm)
VOICE COIL PARAMETERS
Voice Coil Diameter f 3" (75 mm)
Voice Coil Height   0.55" (14 mm)
Voice Coil Former   aluminum
Voice Coil Wire   hexagonal shaped aluminum
Number of Layers   2
DC Resistance RE 6.25 W
Voice Coil Inductance @ 1 kHz LBM 0.54 mH
MAGNET STRUCTURAL SYSTEM
Magnet Type   double ferrite
Magnet System   vented
Magnetic Gap Height HE 0.25" (6.2 mm)
Flux Density B 0.65 T
BL Product BXL 6.15 NA
Max. Linear Excursion Xmax ± 0.17" (4.33 mm)
WORKING PARAMETERS
Suspension Compliance CMS 1,255 m M / Newton
Mechanical Q QMS 2.45
Electrical Q QES 0.69
Total Q Q/T 0.50
Moving Mass MMS  23.5 g
Air Load VAS 80 L
Cone Material (DPC)   damped polymer composite
Effective Piston Area S 219 cm 2
Net Weight   3.3 lbs. (1.5 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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