B & C  PROFESSIONAL COMPONENTS

6NSM51 - 6.5" LIGHTWEIGHT CLOSED BACK MIDRANGE SPEAKER 

B&C 6NSM51 CLOSED BACK 6.5" MIDRANGE SPEAKER WORKS IN OPEN BAFFLE, FRONT LOADED & HORN LOADED MIDRANGE SYSTEMS!

B&C 6NSM51B&C 6NSM51

6NSM51

Item Price: $198.20

SPEAKER MODEL

6NSM51

SPECIFICATIONS

Nominal Basket Diameter

6.5" / 170mm

Impedance

8 ohms

AES Power Rating

250 Watts

Program Power 500 Watts

Frequency Response

300Hz - 6.0kHz

Sensitivity (1W/1m)

100dB

Voice Coil Diameter

2" / 51mm

Winding Depth .33" / 8mm
Magnetic Gap Depth .24" / 6mm
Flux Density 1.6T

MATERIALS

Basket Cast Aluminum
Surround Shape Triple Roll
Cone Shape Radial
Cone Protection Waterproof
Spider Single
Pole Design T-Pole
Former Material Glass Fiber
Voice Coil Aluminum
Magnet Neodymium

MOUNTING INFORMATION

Overall Diameter 6.18" / 157mm
Bolt Circle Diameter 5.59" / 142mm
Baffle Cutout Diameter 4.8" / 122mm
Depth 4.25" / 108mm
Flange & Gasket Thickness .35" / 9mm
No. Of Mounting Holes 6
Net Weight 3.02 lbs./ 1.37 kg.
Shipping Weight 4.01 lbs./ 1.82 kg.

  THIELE-SMALL PARAMETERS

Resonant Frequency (fs)

280 Hz
Impedance (Re) 5.4 ohms
Electrical Factor(Qes) .68
Mechanical Q (Qms) 5.4
Total Q (Qts) .6
Compliance Equiv. Vol. (Vas) .7 Liters/.02cu. ft.
Voice Coil Overhang (Xmax) 2.8mm
Surface Area of Cone (Sd)m2 0.0143m2
Diaphragm Mass(Mms) 13.5 Grams
Reference Efficiency 2.2%
BL Factor 13.9 T-M
Coil Inductance (Le) 0.15mH
FREQUENCY RESPONSE
B&C 6NSM51 Frequency
IMPEDANCE CURVE
B&C 6NSM51 Impedance
MOUNTING DIMENSIONS
B&C 6NSM51 Drawing

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