BIRMINGHMA 1275 - 12" GUITAR SPEAKER
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BIRMINGHMA 1275 - 12" GUITAR SPEAKER |
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THE TONE SPEAK BIRMINGHAM 1275 HAS A COMPLEX RICH HARMONICS FOR THAT CLASSIC BRITISH TONE! |
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Birmingham 1275-8
Item Price: $159.99 |
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Birmingham 1275-16
Item Price: $159.99 |
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| SPEAKER MODEL | BIRMINGHAM 1275 |
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SPECIFICATIONS |
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Nominal Basket Diameter |
12" / 305mm |
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Impedance |
8 & 16 ohms |
| RMS Power Rating | 75 Watts |
| Peak Power Rating | 150 Watts |
| Usable Frequency Response | 80Hz - 5kHz |
| Voice Coil Diameter | 1.73" / 44mm |
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Sensitivity (1W/1m) |
100dB |
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Magnet Weight |
50 oz. |
| Net Weight | 12.98 lbs. / 5.9 kg. |
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MOUNTING INFORMATION |
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12.18" / 309.4mm |
| Bolt Circle Diameter |
11.58 |
| Baffle Cutout Diameter | 10.85" / 275.5mm |
| No. Of Mounting Holes | 8 |
| Mounting Hole Diameter | 0.26" / 6.5mm |
| Magnet Diameter | 6.14" / 155.96mm |
| Overall Depth | 5.16" / 131.06mm |
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MATERIALS |
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| Basket | Stamped Steel |
| Voice Coil | High Temperature Copper |
| Coil Former Material | Nomex |
| Dust Cap | Open Cloth |
| Cone | Felted Paper |
| Surround | Felted Paper & Damping Edge Treated |
| Spider | Cotton |
| Magnet | Ferrite |
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THIELE-SMALL PARAMETERS |
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| Resonant Frequency (fs) | 93Hz |
| Impedance (Re) | 7.1 ohms |
| Coil Inductance (Le) | 0.37mH |
| Electromagnetic Q (Qes) | 0.71 |
| Mechanical Q (Qms) | 20.81 |
| Total Q (Qts) | .69 |
| Compliance Equiv. Vol. (Vas) | 40.2Liters / 1.42 cu. ft. |
| BL Product (BL) | 13.09 T-M |
| Diaphragm Mass (Mms) | 29.9 Grams |
| Reference Efficiency | 4.35% |
| Surface Area of Cone (Sd) | .05391m2 |
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Frequency Response |
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| Mounting Dimensions | |
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US Speaker, LLC
