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 […]
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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