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The 2226J 15" low frequency transducer represents the results of JBL's latest engineering research in high power transducer design. For increased power handling while reducing power compression, a unique direct voice coil-to-air heat dissipation method called Vented Gap Cooling has been used. This process pumps air through the magnetic gap and directly over and around the voice coil to provide immediate heat transfer and reduction in operating temperature. Through the use of new computer-aided magnet optimization and analysis techniques comes a new weight-optimized Symmetrical Field Geometry (SFG) magnet structure, resulting in a reduction of overall driver weight and a significant reduction in harmonic distortion. This new magnet structure offers much of the weight advantage of rare earth magnet structures without their prohibitive cost. Specifications: *Power handling: 600 watts RMS *Voice coil diameter: 4" *Nominal impedance: 16 ohms *Frequency Range: 30-2,500 Hz *Magnet assembly weight: 15 lbs. *Fs: 40 Hz *SPL: 97 dB 1W/1m *Vas: 6.2 cu. ft. *Qms: 5.0 *Qes: 0.33 *Qts: 0.31 *Xmax: 7.6 mm *Dimensions: Overall Diameter: 15-1/4“, Cutout Diameter: 14“, Mounting Depth: 5-1/2“. |
| 800 W continuous program power capacity |
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| 76 mm (3 in) copper voice coil |
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| 40 – 2000 Hz response |
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| 100 dB sensitivity |
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- 98 dB sensitivity 1 W / 1 m
- 500 W + 80 W Power handling
- 3" copper Sandwich Voice Coil
- Triple Aluminum demodulating rings
- Single point source providing coherent Wave Front
- Very high SPL, superb Quality Sound
- Optimal for 2-way Systems
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- 98 dB sensitivity 1 W / 1 m
- 400 W + 60 W Power handling
- 3" Copper Sandwich Voice Coil
- Single Point Source providing coherent Wave Front
- Optimal for compact 2-way Systems
| DELTA-15A Series Standard American
Recommended for professional audio as a mid-bass or vocal wedge in a sealed enclosure. Also suitable as a
mid-bass or woofer in vented enclosures.
SPECIFICATION
- Nominal Basket Diameter 15“, 381 mm
- Nominal Impedance 4 ohms
- Power Rating Watts 400 W / Music Program 800 W
- Resonance 40 Hz
- Usable Frequency Range 48 Hz - 4 kHz
- Sensitivity 100
- Magnet Weight 56 oz.
- Gap Height 0.375“, 9.53 mm
- Voice Coil Diameter 2.5“, 63.5 mm
THIELE & Small Parameters
- Resonant Frequency (fs) 40 Hz
- DC Resistance (Re) 6.3
- Coil Inductance (Le) 0.64 mH
- Mechanical Q (Qms) 8.05
- Electromagnetic Q (Qes) 0.57
- Total Q (Qts) 0.53
- Compliance Equivalent Volume (Vas) 270.7 liters / 9.56 cu.ft
- Peak Diaphragm Displacement Volume (Vd) 233 cc
- Mechanical Compliance of Suspension (Cms) 0.26 mm/N
- BL Product (BL) 13.2 T-M
- Diaphragm Mass inc. Airload (Mms) 62 grams
- Efficiency Bandwidth Product (EBP) 70
- Maximum Linear Excursion (Xmax) 2.7 mm
- Surface Area of Cone (Sd) 864.6 cm²
- Maximum Mechanical Limit (Xlim) 11.1 mm
MOUNTING Information
- Recommended Enclosure Volume
Sealed 37-42.5 liters/1.3-1.5 cu.ft.
Vented 82-161.4 liters/2.9-5.7cu.ft.
- Overall Diameter 15.15“, 384.8 mm
- Baffle Hole Diameter 13.77“, 349.6 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. 14.56“, 369.9 mm
- Depth 6.05“, 154 mm
MATERIALS of Construction
- Aluminum voice coil
- Polyimide former
- Ferrite magnet
- Vented core
- Pressed steel basket
- Paper Cone
- Cloth cone edge
- Solid composition paper dust cap
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| 1600 W continuous program power capacity |
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| 100 mm (4 in) copper voice coil |
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| 35 – 1500 Hz response |
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| 97 dB sensitivity |
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| FEA optimized Neodymium magnet assembly allows the highest force factor and excursion capability |
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| Double silicone spider with optimized compliance |
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| Ventilated voice coil gap for reduced power compression |
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