QC12W-8A
Key Features:
  • 12" (304mm), Cast Aluminum Woofer: 8 ohm, 175 Watts
  • 2.5" Edge Wound voice coil, Paper cone with accordion cloth surround
  • RoHS compliant

Primary Specifications

Speakers Environment Indoor
ROHS Compliant Yes

Technical Specifications

UNIT of MEASURE
Nominal Basket Diameter 12.0 / 304.0 inch / mm
Rated Impedance 8 ohms
Rated Power 175.0 Watts
Program Power 350 Watts
Frequency Range 30 - 1000 Hz
Sensitivity
(2.83 V input measured at 1 Meter)
96 dB SPL
Voice Coil Diameter 2.5 / 63.5 inch / mm
Magnet Weight 55.0 / 1562 oz / gr
Transformer

Small Signal Parameters

UNIT of MEASURE
Resonant Frequency (fo) 45 Hz
D.C. Resistance (Re) 6.6 ohms
Mechanical Q (Qms) 1.8
Electrical Q (Qes) 0.42
Total Q (Qts) 0.34
Compliance Equivalent Volume (Vas) 113.4 ltr
BL Product (BL) 14.4 T-M
Maximum Linear Excursion (Xmax) 6.4 mm
Surface Area of Cone (Sd) 539.0 cm2
Moving Mass (Mmd) g

Material Descriptions

 
Basket Cast Aluminum
Terminal Size Gold Terminal Posts
Magnet Ferrite
Voice Coil Wire Copper
Voice Coil Form Kapton
Cone Paper
Cone Edge Cloth
Dust Cap Paper
http://s3.amazonaws.com/misco/curves/QC12W-8A.JPG
ID Description Measurements Tolerance
OD Outside Diameter 12.4 in. +/- 0.040”
CD Cutout Diameter 11.1 in. +/- 0.030”
MG Magnet Diameter +/- 0.050”
HD Hole Diameter 0.2 in. +/- 0.020”
MD Mounting Diameter 11.75 in. +/- 0.020”
ID Internal Depth 4.9 in. Maximum
FT Flange Thickness 0.36 in. +/- 0.050”
NW Net Weight 5604.0 g
ceramic