- Nominal basket diameter: 15 in., 381mm
- Impedance: 8 ohms
- Power rating: 500 Watts RMS
- Sensitivity: 96 dB (1 Watt/1 meter)
- Music Program: 1000 Watts
- Resonance: 39Hz
- Usable frequency range: 42Hz - 3.2kHz
- Magnet weight: 56oz.
- Gap height: 0.375 in., 9.52mm
- Voice coil diameter: 2.5 in., 63.5mm
Mounting Information - Recommended enclosure volume: 92 - 150 liters
- Recommended enclosure volume (vented): 3.25 - 5.3 cu. ft.
- Overall diameter: 15.15 in., 384.8mm
- Baffle hole diameter: 13.77 in., 349.6mm
- Front sealing gasket: fitted as standard
- Rear sealing gasket: fitted as standard
- Mounting holes diameter: 0.25 in., 6.4mm
- Mounting holes B.C.D.: 14.56 in., 369.9mm
- Depth: 6.05 in., 153.6mm
- Shipping weight: 15.3lbs., 7 kg.
Thiele-Small Parameters - Resonant frequency (fs): 39Hz
- Impedance (Re): 6.11 ohms
- Coil inductance (Le): 1.37mH
- Electromagnetic Q (Qes): 0.52
- Mechanical Q (Qms): 6.3
- Total Q (Qts): 0.48
- Compliance equivalent volume (Vas): 241.0 liters (8.51 cu. ft.)
- Peak diaphragm displacement volume (Vd): 419cc
- Mechanical compliance of suspension (Cms): 0.23mm/N
- BL product (BL): 14.6 T-M
- Diaphragm mass inc. airload (Mms): 75 grams
- Equiv. resistance of mechanical suspension loss (Rms): 3.19N*sec/M
- Efficiency bandwidth product (EBP): 75
- Voice coil overhang (Xmax): 4.8mm
- Surface area of cone (Sd): 856.3cm2
- Impedance at resonance (Zmax): 72 ohms
- Maximum mechanical limit (Xmech): 16.5mm
Important NoteWatts: The guaranteed long term power rating throughout the usable frequency range of the speaker.
(Translation: the speaker will operate continuously at any frequency within the speakers specified frequency range when driven at this power. The "Watts" rating is similar to RMS, but is really more indicative of long term thermal capability.)
Music Program: The speaker will safely and reliably handle the varying frequencies of musical content at this power rating. The "Music Program" rating is more indicative of what you can expect in the real world with the speaker operating within the appropriate enclosure reproducing music or vocal audio program.
- Dimensions and Weight in Packaging
- 8 Ohms
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Shipping Weight: 14.25 lbs
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Shipping Dimensions: 16 x 16 x 8 in
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Manufacturer Part Number (MPN): DELTA15LFA