Well suited for tight fitting pro audio line array and column array applications, the Eminence Alpha 3-16 American Standard Series Full Range Driver is 3" in diameter with a 0.79" copper voice coil. With a program power rating of 60W, the Alpha 3 utilizes an 8.3 oz ferrite magnet in conjunction with an internal neodymium bucking magnet for increased sensitivity, which extends the response out to 20 kHz. The highly pressed cone sandwiches paper with a layer of water-resistant polypropylene for increased stiffness and lower distortion.
Thiele and Small Parameters
- Resonant frequency (fs): 112 Hz
- DC resistance (Re): 10.53 Ohms
- Coil inductance (Le): 0.14mH
- Mechanical Q (Qms): 5.89
- Electromagnetic Q (Qes): 0.66
- Total Q (Qts): 0.59
- Compliance equivalent volume (Vas): 1.05 liters / 0.04 cu.ft.
- Peak diaphragm displacement volume (Vd): 7.7 cc
- Mechanical compliance of suspension (Cms): 0.93mm/N
- BL product (BL): 4.95 T-M
- Diaphragm mass inc. airload (MMs): 2.2 grams
- Efficiency bandwidth product (EBP): 169
- Maximum linear excursion (Xmax): 2.7mm
- Surface area of cone (Sd): 28.6 cm2
- Maximum mechanical limit (Xlim): 4.0mm
Mounting Information
- Recommended enclosure volume
- Sealed: 1.05-1.7 liters / 0.04-0.06 cu.ft.
- Vented: 1.13-1.98 liters / 0.04-0.07 cu.ft.
- Driver volume displaced: 0.005 cu.ft. / 0.13 liters
- Major diameter: 3.98", 101.1mm
- Flat to flat diameter: 3.24", 82.3mm
- Baffle Hole Diameter: 3.04", 77.2mm
- Front sealing gasket: Yes
- Rear sealing gasket: Yes
- Mounting holes diameter: 0.16", 4.1mm
- Mounting holes (B.C.D.): 3.63", 92.1mm
- Depth: 1.76", 44.6mm
- Net weight: 0.9 lbs, 0.41 kg
- Shipping weight: 1.1 lbs, 0.5 kgs
Material of Construction
- Coil construction: Copper voice coil
- Coil former: Polyimide former
- Magnet composition: Ferrite magnet
- Core details: Vented / Flux source cap
- Basket materials: Pressed steel
- Cone composition: Paper / Poly sandwich cone
- Cone edge composition: Poly cone edge
- Dust cap composition: Poly dust cap
