Eminence Commonwealth 12 12" Guitar Speaker
The Eminence Commonwealth 12 in guitar speaker offer a warm and rich tone, but very clean and well defined. Great presence, very full & smooth. Very little cone breakup, but distortion friendly.
| COMMONWEALTH™ 12 |
|
| SPECIFICATION |
|
| Nominal Basket Diameter |
12 , 304.8mm |
| Nominal Impedance* |
8 ohms |
| Power Rating |
|
 Watts |
225W |
| Music Program |
|
| Resonance |
50Hz |
| Usable Frequency Range |
50Hz-4kHz |
| Sensitivity*** |
100 |
| Magnet Weight |
109 oz. |
| Gap Height |
0.29 , 7.2mm |
| Voice Coil Diameter |
4 , 101.6mm |
| |
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| THIELE & SMALL PARAMETERS |
|
| Resonant Frequency (fs) |
50Hz |
| DC Resistance (Re) |
6.34 |
| Coil Inductance (Le) |
0.46mH |
| Mechanical Q (Qms) |
6.61 |
| Electromagnetic Q (Qes) |
0.35 |
| Total Q (Qts) |
0.33 |
| Compliance Equivalent Volume (Vas) |
90 liters / 3.2 cu. ft. |
| Peak Diaphragm Displacement Volume (Vd) |
36cc |
| Mechanical Compliance of Suspension (Cms) |
0.24mm/N |
| BL Product (BL) |
15.7 T-M |
| Diaphram Mass inc. Airload (Mms) |
43 grams |
| Efficiency Bandwidth Product (EBP) |
143 |
| Maximum Linear Excursion (Xmax) |
0.7mm |
| Surface Area of Cone (Sd) |
519.5 cm2 |
| Maximum Mechanical Limit (Xlim) |
|
| |
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| MOUNTING INFORMATION |
|
| Recommended Enclosure |
|
| Sealed |
Acceptable |
| Vented |
Acceptable |
| Overall Diameter |
12.28 , 312.0mm |
| Baffle Hole Diameter |
11.08 , 281.3mm |
| Front Sealing Gasket |
fitted as standard |
| Rear Sealing Gasket |
|
| Mounting Holes Diameter |
0.27 , 6.8mm |
| Mounting Holes B.C. D. |
11.69 , 297.0mm |
| Depth |
5 , 127mm |
| Net Weight |
21.5 lbs., 9.8 kg |
| Shipping Weight |
23.2 lbs., 10.5 kg |
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| MATERIALS OF CONSTRUCTION |
|
| Coil Construction |
Aluminum voice coil |
| Coil Former |
Polyimide former |
| Magnet Composition |
Ferrite magnet |
| Core Details |
Vented core |
| Basket Materials |
Die-cast aluminum basket |
| Cone Composition |
Paper Cone |
| Cone Edge Composition |
Cloth cone edge |
| Dustcap Composition |
Aluminum dust cap |
|
