Monday, February 11, 2013

ACR 12 MID RANGE





12" 1225 ACR NewMID RANGE
SPECIFICATION
Nominal Diameter   12 inch / 305 mm
Nominal Impedance   8 ohm
Cone material   Black Paper
Edge   Cloth
Maximum Power   350 watt






Magnet Weight   27.93 Oz
Frequency Response   47 Hz – 11.1 KHz
Sensitivity 1 M / 1 W   93 dB
Voice Coil Diameter   1.4 inch / 35.5 mm
Voice Coil Former Material   Aluminium SV

THIELE SMALL PARAMETER
Resonance Frequency   Fs   47 Hz
DC resistance   Re   5.5 ohm
Mechanical Factor   Qms   4
Electical Factor   Qes   0.92
Total Factor   Qts   0.76
BL Factor   BL   8.1 T/m
Effective moving mass   Mms   37.3 Gram
Equivalent cas air load   Vas   121.4 Liter
Effective piston area   Sd   530.9 Cm2
Voice coil inductance   Le   0.33 mH
Half space efficiency   Eff   1.32 %

MOUNTING INFORMATION
Overall Diameter  306 mm
Bolt Circle Diameter   293 mm
Bolt Hole Diameter   6 mm
Front Mount   275 mm
Overall depth   119 mm



12" PA - 12880 Excellent MK II By ACR



Mid range

SPECIFICATION
Nominal Diameter   12 inch
Nominal Impedance   8 ohm
Cone material   Black Paper
Edge   Cloth
Maximum Power   500 watt
Magnet Weight   61.95 Oz
Frequency Response   41 Hz – 5.3 KHz
Sensitivity 1 M / 1 W   97 dB
Voice Coil Diameter   2.4 inch / 60.55 mm
THIELE SMALL PARAMETER
Resonance Frequency   Fs   41 Hz
DC resistance   Re   5.2 ohm
Mechanical Factor   Qms   1.98
Electical Factor   Qes   0.53
Total Factor   Qts   0.29
BL Factor   BL   12.5 N/A
Effective moving mass   Mms   40.4 Gram
Equivalent cas air load   Vas   153.9 Liter
Effective piston area   Sd   543.3 Cm2
Voice coil inductance   Le   0.21 mH
Half space efficiency   Eff   2.96 %
MOUNTING INFORMATION
Overall Diameter  306 mm
Bolt Circle Diameter   297 mm
Bolt Hole Diameter   5.5 mm
Front Mount   280 mm
Overall depth   122 mm
 

12" PA - 7512 - M Fabulous By ACR



Mid range

SPECIFICATION
Nominal Diameter   12 inch
Nominal Impedance   8 ohm
Cone material   Black Paper
Edge   Cloth
Maximum Power   700 watt
Magnet Weight   75.95 Oz
Frequency Response   50 Hz – 5.2 KHz
Sensitivity 1 M / 1 W   97 dB
Voice Coil Diameter   3 inch / 75.5 mm
THIELE SMALL PARAMETER
Resonance Frequency   Fs   50 Hz
DC resistance   Re   5.3 ohm
Mechanical Factor   Qms   13.98
Electical Factor   Qes   0.32
Total Factor   Qts   0.31
BL Factor   BL   1.6 N/A
Effective moving mass   Mms   49.7 Gram
Equivalent cas air load   Vas   80 Liter
Effective piston area   Sd   539.1 Cm2
Voice coil inductance   Le   0.21 mH
Half space efficiency   Eff   3.20 %
MOUNTING INFORMATION
Overall Diameter  321 mm
Bolt Circle Diameter   302 mm
Bolt Hole Diameter   6.5 mm
Front Mount   286 mm
Overall depth   134 mm
 

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