The Eminence Alpha-15A 15" speaker is ideal for two-way sound reinforcement systems, keyboard, and guitar combos. For all bass applications. Made in the USA. 7-year manufacturer's warranty!
Features
- Kapton coil former
- Polyamide-imide coated copper voice coil
- Ferrite magnet
- Vented and extended pole piece
- Pressed steel basket
- Paper cone
- Cloth accordian surround
Specifications
- Nominal Diameter15"
- Power Handling (RMS)220 Watts
- Power Handling (max)400 Watts
- Impedance8 ohms
- Frequency Response46 to 3,500 Hz
- Sensitivity97 dB 1W/1m
- Voice Coil Diameter1.5"
- Magnet Weight25 oz.
Thiele-Small Parameters
- Resonant Frequency (Fs)41 Hz
- DC Resistance (Re)5.88 ohms
- Voice Coil Inductance (Le)0.84 mH
- Mechanical Q (Qms)7.23
- Electromagnetic Q (Qes)1.53
- Total Q (Qts)1.26
- Compliance Equivalent Volume (Vas)9.18 ft.³
- Mechanical Compliance of Suspension (Cms)0.25 mm/N
- BL Product (BL)7.70 Tm
- Diaphragm Mass Inc. Airload (Mms)59g
- Maximum Linear Excursion (Xmax)3.80 mm
- Surface Area of Cone (Sd)856.3 cm²
Materials of Construction
- Cone MaterialPaper
- Surround MaterialCloth
- Voice Coil Wire MaterialCopper
- Voice Coil FormerKapton / Polyimide
- Basket / Frame MaterialSteel
- Magnet MaterialFerrite
Mounting Information
- Overall Outside Diameter15.15"
- Baffle Cutout Diameter13.77"
- Depth5.83"
- # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
- Sealed Volume6.42 ft.³
- Sealed F345 Hz
- Vented Volume85.78 ft.³
- Vented F323 Hz
