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RCF L12L750 12" Midbass Speaker
Very high efficiency and extended linearity are special features of RCF's L12L750 midbass transducer. Efficient heat dissipation is ensured by a radiator that is part of the basket design. The aluminum voice coil provides a properly aligned Q factor and high sensitivity. A specially designed shallow triple-roll surround guarantees low midrange distortion, and a fiberglass former voice coil, polycotton suspensions, and treated cone contribute to the L12L750's very high power handling. When mounted in compact size bass reflex enclosures, the good combination of short voice coil, very low mass, and suspension control makes the L12L750 an excellent choice for high power, 2-way satellite applications.
Nominal Diameter12"Power Handling (RMS)350 Watts
Power Handling (max)700 WattsImpedance8 ohms
Frequency Response60 to 2,000 HzSensitivity101 dB 2.83V/1m
Voice Coil Diameter4"
Resonant Frequency (Fs)62 HzDC Resistance (Re)5.2 ohms
Voice Coil Inductance (Le)1.25 mHMechanical Q (Qms)4.1
Electromagnetic Q (Qes)0.29Total Q (Qts)0.27
Compliance Equivalent Volume (Vas)1.84 ft.³BL Product (BL)18.8 Tm
Diaphragm Mass Inc. Airload (Mms)50gMaximum Linear Excursion (Xmax)3.5 mm
Surface Area of Cone (Sd)530 cm²
Materials of Construction
Cone MaterialTreated PaperSurround MaterialCloth
Voice Coil Wire MaterialCopperVoice Coil FormerFiberglass
Overall Outside Diameter12.6"Baffle Cutout Diameter11.3"
Depth 5.7"# Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
Sealed Volume0.23 ft.³Sealed F3183 Hz
Vented Volume0.45 ft.³Vented F3117 Hz
Weight 26.4 lbs.