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BETA-12CX American Standard Series
Recommended for professional audio as a mid-bass in either vented, or sealed satellite or floor monitor
enclosures. Also works nicely in vented two-way enclosures used for small coverage areas.
SPECIFICATION - Nominal Basket Diameter 12“, 304.8 mm
- Nominal Impedance 8 ohms
- Power Rating Watts 250 W / Music Program 500 W
- Resonance 43 Hz
- Usable Frequency Range 66 Hz - 20 kHz
- Sensitivity 96.7
- Magnet Weight 38 oz.
- Gap Height 0.312“, 7.92 mm
- Voice Coil Diameter 2“, 50.8 mm
THIELE & Small Parameters - Resonant Frequency (fs) 43 Hz
- DC Resistance (Re) 5.57
- Coil Inductance (Le) 1.01 mH
- Mechanical Q (Qms) 6.69
- Electromagnetic Q (Qes) 0.51
- Total Q (Qts) 0.48
- Compliance Equivalent Volume (Vas) 161 liters / 5.7 cu. ft.
- Peak Diaphragm Displacement Volume (Vd) 186 cc
- Mechanical Compliance of Suspension (Cms) 0.40 mm/N
- BL Product (BL) 10.0 T-M
- Diaphragm Mass inc. Airload (Mms) 34 grams
- Efficiency Bandwidth Product (EBP) 84
- Maximum Linear Excursion (Xmax) 3.5 mm
- Surface Area of Cone (Sd) 532.4 cm²
- Maximum Mechanical Limit (Xlim) 10.4 mm
MOUNTING Information - Recommended Enclosure Volume
Sealed 42.5-28 liters/1-1.5 cu.ft.
Vented 37-71 liters/1.3-2.5 cu.ft. - Overall Diameter 12.03“, 305.5 mm
- Baffle Hole Diameter 10.95“, 278.1 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. 11.59“, 294.3 mm
- Depth 4.47“, 114 mm
MATERIALS of Construction - Copper voice coil
- Polyimide former
- Ferrite magnet
- Extended core
- Pressed steel basket
- Paper Cone
- Cloth cone edge
- Screened cloth dust cap
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700 W continuous program power capacity |
| 80° nominal coverage |
| 45 – 18000 Hz response |
| 99 dB sensitivity |
| Single Neodymium magnet assembly |
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KAPPA PRO-12A Professional SeriesRecommended for professional audio in a vented mid-bass, and vented bass enclosure incorporating a high-pass filter.
Product type
Loudspeaker Chassis
Nominal Diameter
304.8 mm
Overall diameter
314.5 mm
Pitch Circle Diameter
293.8 mm
Cut- out Measurement
281.1 mm
Diameter of fixing holes
6.5 mm
Nominal Impedance
8 Ohm(s)
Nominal Load Capacity
500 W
maximum rated load
1000 W
Sensitivity (1 W / 1 m)
97.1 dB
Frequency response
57 - 2800 Hz
Voice Coil Material
copper
Depth of the magnetic gap
9.53 mm
Fs (Resonance Frequency)
37 Hz
Re (DC resistance)
5.46 Ohm(s)
Qms (mechanical quality)
6.93
Le (inductance of the voice coil)
1.22 mH
Qes (electrical quality)
0.25
Qts (overall quality)
0.24
Vas (equivalent volume)
121
BL (power factor)
17.3 T/m
Xmax (maximum displacement)
4.8 mm
Cms (elasticity of the suspension)
0.32 mm/N
Sd (membrane area)
519.5 cm²
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- 98 dB sensitivity 1 W / 1 m
- 400 W + 60 W Power Handling
- 3" + 1.5" Copper Clad Sandwich Voice Coil
- Single Point Source providing coherent Wave Front
- Optical for compact 2-way Systems
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Specification Nominal Diameter 320 (12) mm (in) Nominal Impedance (1) 8 Ohm Minimum Impedence 7.5 Ohm Nominal Power Handling (2) 450 W Continuous Power Handling (3) 900 W Sensitivity (1W/1m) (4) 95 dB Frequency Range 40 - 1000 Hz Voice Coil Diameter 76 (3) mm (in) Winding Material Copper Former Material Glass Fibre Winding Depth 22 (0.9) mm (in) Magnetic Gap Depth 10.5 (0.4) mm (in) Flux Density 1.15 T
Thiele & Small Parameters Fs 42 Hz Re 6.1 Ohm Qes 0.22 Qms 3.8 Qts 0.2 Vas 75 (2.6) dm3 (ft3) Sd 522 (80.9) cm2 (in2) Eta Zero 2.4 % Xmax +/- 7 mm Xvar +/- 9 mm Mms 74 g Bl 23.5 Txm Le 2 mH
Mounting and Shipping Info Overall Diameter 316 mm (12.4 in) Bolt Circle Diameter 296 mm (11.6 in) Baffle Cutout Diameter 282 mm (11.1 in) Depth 140 mm (5.5 in) Flange and Gasket Thickness 16 mm (5/8 in) Net Weight 7.6 kg (16.7 lb) Shipping Weight 8.4 kg (18.5 lb) Shipping Box 340x340x170 mm (13.4x13.4x6.7 in) 1For different impedances, please ask. 22 hours test made with continuous pink noise signal (6 dB crest factor). Power calculated on rated minimum impedance. 3Power on Continuous Program is defined as 3 dB greater than the Nominal rating. 4Applied RMS Voltage is set to 2.83V for 8 ohms Nominal Impedance. |
Building on the platform of the Blue, the Gold is a higher-powered, Alnico-magnet speaker that recreates the unmistakable sonic signature of a ʽwell played-inʼ original. Over time, the high frequencies of a Blue soften and become less chalky as the cone becomes more flexible – a much sought after characteristic that the Gold exhibits straight out of the box. Also present in the Gold sound from the outset is an added warmth and complexity in the midrange which, coupled with the classic Alnico qualities of a laid-back attack, rounded low end and brilliant belllike highs, deliver huge rhythm voicings and saturated vocal lead tones.
The Gold is a wonderfully expressive and revealing loudspeaker, affording guitarists an unprecedented degree of dynamic control. It has already become a favourite for many working players worldwide whether picking and bending with Brad Paisley, or rocking hard with Danny Spitz of Anthrax.
General specifications | Nominal diameter | 12“, 305mm | Power Rating | 50W | Nominal impedance | 8Ω and 15Ω | Sensitivity | 100dB | Chassis type | Pressed steel | Voice coil diameter | 1.75“, 44.5mm | Voice coil material | Round copper | Magnet type | Alnico | Frequency range | 75-5000Hz | Resonance frequency, Fs | 75Hz | DC resistance, Re | 6.4Ω & 11.8Ω | Mounting Information | Diameter | 12.2“, 309mm | Overall depth | 6.5“, 165mm | Magnet structure diameter | 5.0“, 128mm | 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 | 9.3lb, 4.2kg |
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