| Content | ALPHA-12A Series Standard American
Recommended for professional audio mid-bass applications in a small sealed or medium vented enclosure.
SPECIFICATION
- Nominal Basket Diameter 12“, 304.8 mm
- Nominal Impedance 8 ohms
- Power Rating Watts 150 W / Music Program 450 W
- Resonance 49 Hz
- Usable Frequency Range 51 Hz - 4.3 kHz
- Sensitivity 95.6
- Magnet Weight 20 oz.
- Gap Height 0.25“, 6.35 mm
- Voice Coil Diameter 1.5“, 38.1 mm
THIELE & Small Parameters
- Resonant Frequency (fs) 49 Hz
- DC Resistance (Re) 6.3
- Coil Inductance (Le) 0.79 mH
- Mechanical Q (Qms) 6.53
- Electromagnetic Q (Qes) 0.88
- Total Q (Qts) 0.77
- Compliance Equivalent Volume (Vas) 121.5 liters / 4.3 cu. ft.
- Peak Diaphragm Displacement Volume (Vd) 125 cc
- Mechanical Compliance of Suspension (Cms) 0.32 mm/N
- BL Product (BL) 8.5 T-M
- Diaphragm Mass inc. Airload (Mms) 33 grams
- Efficiency Bandwidth Product (EBP) 56
- Maximum Linear Excursion (Xmax) 2.4 mm
- Surface Area of Cone (Sd) 519.5 cm²
- Maximum Mechanical Limit (Xlim) 6.6 mm
MOUNTING Information
- Recommended Enclosure Volume
Sealed 17-22.7 liters / 0.6-0.8 cu. ft.
Vented 56.6-113.3 liters / 2-4 cu. ft.
- Overall Diameter 12.26“, 311.4 mm
- Baffle Hole Diameter 11“, 279.5 mm
- Front Sealing Gasket fitted as standard
- Rear Sealing Gasket fitted as standard
- Mounting Holes Diameter 0.25“, 6.4 mm
- Mounting Holes B.C.D. 11.71“, 297.5 mm
- Depth 4.73“, 120 mm
MATERIALS of Construction
- Copper voice coil
- Polyimide former
- Ferrite magnet
- Vented and extended core
- Pressed steel basket
- Paper Cone
- Cloth cone edge
- Solid composition felt dust cap
|
| 2000 W continuous program power capacity |
|
| 100 mm (4 in) copper voice coil |
|
| 45 – 1000 Hz response |
|
| 95 dB sensitivity |
|
| Aluminium demodulating ring allows a very low distortion figure |
|
| Double silicone spider with optimized compliance |
|
| Ventilated voice coil gap for reduced power compression |
|
| 700 W continuous program power capacity |
| | 80° nominal coverage |
| | 45 – 18000 Hz response |
| | 99 dB sensitivity |
| | Single Neodymium magnet assembly |
|
Originally created as a higher-power handling variant of the G12M Greenback, the G12-65 is widely regarded as one of the best speakers ever produced for use in a 4x12 cabinet.
With its fast attack and tightly controlled low-end, the G12-65 became a firm favourite in the ʼ80s with hard rock players. The precisely tuned midrange and crisp defined top-end contribute to an aggressive crunch sound that punches through the mix while the mid-range warmth and detail give weight and depth to single notes.
| General specifications |
|---|
| Nominal diameter | 12“, 305mm | | Power Rating | 65W | | Nominal impedance | 8Ω and 15Ω | | Sensitivity | 97dB | | Chassis type | Pressed steel | | Voice coil diameter | 1.75“, 44.5mm | | Voice coil material | Rounded copper | | Magnet type | Ceramic | | Magnet weight | 35oz, 0.99kg | | Frequency range | 80-5000Hz | | Resonance frequency, Fs | 85Hz | | DC resistance, Re | 6.9Ω & 11.8Ω | | Mounting Information | | Diameter | 12.2“, 309mm | | Overall depth | 5.0“, 128mm | | Magnet structure diameter | 5.7“, 145mm | | Cut-out diameter | 11.1“, 283mm | | Mounting slot dimensions | 0.31“, 7.9mm Ø | | Number of mounting slots | 4 | | Mounting slot PCD | 11.7“, 297mm | | Unit weight | 12.1lb, 5.5kg |
| |
Originally created as a higher-power handling variant of the G12M Greenback, the G12-65 is widely regarded as one of the best speakers ever produced for use in a 4x12 cabinet.
With its fast attack and tightly controlled low-end, the G12-65 became a firm favourite in the ʼ80s with hard rock players. The precisely tuned midrange and crisp defined top-end contribute to an aggressive crunch sound that punches through the mix while the mid-range warmth and detail give weight and depth to single notes.
| General specifications |
|---|
| Nominal diameter | 12“, 305mm | | Power Rating | 65W | | Nominal impedance | 8Ω and 15Ω | | Sensitivity | 97dB | | Chassis type | Pressed steel | | Voice coil diameter | 1.75“, 44.5mm | | Voice coil material | Rounded copper | | Magnet type | Ceramic | | Magnet weight | 35oz, 0.99kg | | Frequency range | 80-5000Hz | | Resonance frequency, Fs | 85Hz | | DC resistance, Re | 6.9Ω & 11.8Ω | | Mounting Information | | Diameter | 12.2“, 309mm | | Overall depth | 5.0“, 128mm | | Magnet structure diameter | 5.7“, 145mm | | Cut-out diameter | 11.1“, 283mm | | Mounting slot dimensions | 0.31“, 7.9mm Ø | | Number of mounting slots | 4 | | Mounting slot PCD | 11.7“, 297mm | | Unit weight | 12.1lb, 5.5kg |
|
Reviews
There are no reviews yet.