Key Features
- Extremely Versatile
- Full Range, Midbass or Midrange
- 8 Ohm Nominal Impedance
- 110 Watt Max Power Rating
- 105 Hz - 12 kHz Frequency Range
Description
Pair of 4" Full-Range, 4 Ohm Speaker Drivers
Ideally suited for line arrays, car doors, side panels, and other tight-fitting applications, the Alpha 4 is a versatile 110-watt driver that can be used full range, midbass, or as a midrange. They can be stacked in a column for vocal applications or with a tweeter and a sub for compact, high-performance PA or MI applications.
Applications: Midbass | Midrange Line Array | Pro Audio | Car Audio | Bookshelf Speakers | Satellite System
Box Type: Sealed | Vented
Features:
- Perfect driver for high output line array use
- Flat response from 105 to 12,000 Hz
- Cosmetic mounting flange for a clean look without flush mounting
- Naturally damped paper cone minimizes resonances
- Midbass | Midrange Line Array | Pro Audio | Car Audio
- Box Type: Sealed | Vented
Specifications:
- SPECIFICATION
- Nominal Basket Diameter: 4", 102 mm
- Nominal Impedance*: 4 Ω
- Power Rating*
- Program Power: 110 W
- Watts: 55 W
- Resonance: 120 Hz
- Usable Frequency Range: 105 Hz - 10 kHz
- Sensitivity*: 88 dB
- Magnet Weight: 10 oz.
- Gap Height: 0.144", 3.7 mm
- Voice Coil Diameter: 1", 25 mm
- THIELE & SMALL PARAMETERS
- Resonant Frequency (fs): 120 Hz
- DC Resistance (Re): 3.42 Ω
- Coil Inductance (Le): 0.18m H
- Mechanical Q (Qms): 6.41
- Electromagnetic Q (Qes): 0.7
- Total Q (Qts): 0.63
- Compliance Equivalent Volume (Vas): 1.76 liters / 0.06 cu.ft.
- Peak Diaphragm Displacement Volume (Vd): 15 cc
- Mechanical Compliance of Suspension (Cms): 0.38 mm/N
- BL Product (BL): 4.12 T-M
- Diaphragm Mass Inc. Airload (MMs): 5 grams
- Efficiency Bandwidth Product (EBP): 172
- Maximum Linear Excursion (Xmax): 2.6 mm
- Surface Area of Cone (Sd): 57.7 cm2
- Maximum Mechanical Limit (Xlim): 4.5 mm
- MOUNTING INFORMATION
- Recommended Enclosure Volume
- Sealed: 1.84-4.53 liters / 0.07-0.16 cu.ft.
- Vented: 3.96-7.08 liters / 0.14-0.25 cu.ft.
- Driver Volume Displaced: 0.012 cu.ft. / 0.33 liters
- Overall Diameter: 4.57", 116.1 mm
- Baffle Hole Diameter: 3.77", 95.8 mm
- Front Sealing Gasket: Yes
- Rear Sealing Gasket: Yes
- Mounting Holes Diameter: 0.15", 3.8mm
- Mounting Holes B.C.D.: 4.25", 108mm
- Depth: 2.31", 58.7 mm
- Net Weight: 1.5 lbs, 0.68 kg
- Shipping Weight: 3.3 lbs, 1.5 kgs
- MATERIALS OF CONSTRUCTION
- Coil Construction: Copper voice coil
- Coil Former: Polyimide former
- Magnet Composition: Ferrite magnet
- Core Details: Non-Vented core
- Basket Materials: Pressed steel basket
- Cone Composition: Paper cone
- Cone Edge Composition: Cloth cone edge
- Dust Cap Composition: Solid composition paper dust cap
Details
- Manufacturer: Eminence
- MPN: ALPHA 4-8 (PAIR)
- Model Number: Alpha 4-8
- UPC: 876358003808