Circa 1959 tone in a vintage American alnico magnet design, approved by George Alessandro. Punchy lows, full lower-mid grunt, and articulate chimey highs balance out this versatile and musical 12” speaker.
Characteristics
| Series | Signature | |
| Model | GA-SC59 | |
| Application | 12" Open or Closed Back | |
| Configuration | 1, 2, or 4 X 12" | |
| Low-End Response | Moderate | |
| Low-End Shape | Tight/Punchy | |
| Mid-Range Response | Moderate | |
| Mid-Range Shape | Warm | |
| High-End Response | Aggressive | |
| Volume/Power | Loudest | |
| Overall Coloration* | Vintage American Alnico tone approved by George Alessandro. Tight and punchy with a nice sweet chime from sound circa '59. | |
| Break-up Modes | Medium | |
| Power Range | Up to 40 watts | |
| Instrument* | Lead/Rhythm Guitar | |
| Genre of Music* | Rock, Blues, Country |
Specifications
Download Spec Sheet| SPECIFICATION | |
| Nominal Basket Diameter | 12", 305 mm |
| Nominal Impedance* | 8 Ω |
| Power Rating* | |
| Program Power | N/A |
| Watts | 40 W |
| Resonance | 89 Hz |
| Usable Frequency Range | 80 Hz - 5.2 kHz |
| Sensitivity* | 100 dB |
| Magnet Weight | 35 oz. |
| Gap Height | 0.313", 7.95 mm |
| Voice Coil Diameter | 1.75", 44 mm |
| THIELE & SMALL PARAMETERS | |
| Resonant Frequency (fs) | 89 Hz |
| DC Resistance (Re) | 7.4 Ω |
| Coil Inductance (Le) | 0.61m H |
| Mechanical Q (Qms) | 19.73 |
| Electromagnetic Q (Qes) | 0.63 |
| Total Q (Qts) | 0.61 |
| Compliance Equivalent Volume (Vas) | 41.21 liters / 1.46 cu.ft. |
| Peak Diaphragm Displacement Volume (Vd) | 83.64 cc |
| Mechanical Compliance of Suspension (Cms) | 0.11 mm/N |
| BL Product (BL) | 13.55 T-M |
| Diaphragm Mass Inc. Airload (MMs) | 28 grams |
| Efficiency Bandwidth Product (EBP) | 140 |
| Maximum Linear Excursion (Xmax) | 1.61 mm |
| Surface Area of Cone (Sd) | 519.5 cm2 |
| Maximum Mechanical Limit (Xlim) | 0 mm |
| MOUNTING INFORMATION | |
| Recommended Enclosure Volume | |
| Sealed | Acceptable |
| Vented | Acceptable |
| Driver Volume Displaced | 0.079 cu.ft. / 2.24 liters |
| Overall Diameter | 12.17", 309.12 mm |
| Baffle Hole Diameter | 11.13", 282.7 mm |
| Front Sealing Gasket | Yes |
| Rear Sealing Gasket | Yes |
| Mounting Holes Diameter | 0.24", 6.096mm |
| Mounting Holes B.C.D. | 11.75", 298.45mm |
| Depth | 6.25", 158.75 mm |
| Net Weight | 8.4 lbs, 3.81 kg |
| Shipping Weight | 10.2 lbs, 4.63 kgs |
| MATERIALS OF CONSTRUCTION | |
| Coil Construction | Copper voice Coil |
| Coil Former | Paper former |
| Magnet Composition | Alnico Magnet |
| Core Details | Non-vented core |
| Basket Materials | Pressed steel basket |
| Cone Composition | Paper cone |
| Cone Edge Composition | Paper cone edge |
| Dust Cap Composition | Solid composition felt dust cap |
Frequency Response
