DELTA-12A Standard American
Recommandé pour les applications professionnelles audio, en tant que transducteur de médium ou boomer (avec filtre passe-haut) dans des enceintes bass reflex.
SPECIFICATION
Nominal Basket Diameter 12", 304.8 mm
Nominal Impedance 8 ohms
Power Rating Watts 400 W / Music Program 800 W
Resonance 55 Hz
Usable Frequency Range 54 Hz - 5 kHz
Sensitivity 98.3
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) 55 Hz
DC Resistance (Re) 6.3
Coil Inductance (Le) 0.74 mH
Mechanical Q (Qms) 5.27
Electromagnetic Q (Qes) 0.46
Total Q (Qts) 0.43
Compliance Equivalent Volume 81.3 liters (Vas) 81.3 liters / 2.9 cu. ft.
Peak Diaphragm Displacement Volume 125 cc
Mechanical Compliance of Suspension 0.21 mm/N
BL Product (BL) 13.5 T-M
Diaphragm Mass inc. Airload (Mms) 39 grams
Efficiency Bandwidth Product (EBP) 120
Maximum Linear Excursion (Xmax) 2.4 mm
Surface Area of Cone (Sd) 519.5 cm²
Maximum Mechanical Limit (Xlim) 9.9 mm
MOUNTING Information
Recommended Enclosure Volume
Sealed N/A
Vented 25.5-85 liters/0.9-3 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 5.35", 136 mm
MATERIALS of Construction
Aluminum voice coil
Polyimide former
Ferrite magnet
Vented core
Pressed steel basket
Paper Cone
Cloth cone edge
Solid composition felt dust cap
