Markaudio Alpair-5 Grey 3" Full Range Aluminium Woofer

Price for 1 piece

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Product description

The Alpair 5 Generation 3 is a pure Free-to-air Single Suspension Full-Range audio driver. This new Alpair 5 is more advanced than its first-generation version. The new 5 operates only using its all-new single front suspension.

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Highlights

The latest model, 3rd generation

Natural Sound

Single suspension

Extreme frequency response(90 to 25,000Hz)

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Product details

Markaudio Alpair-5 Grey 3" Full Range Aluminium Woofer

This design retains designer Mark Fenlon’s classical mechanical engineering approach to reduce mass and extend long-throw operating capacity. Mark, along with Evan Yu and the engineering team spent several months of research removing mechanical restriction from the ultra-thin coil body. Traditional driver designs use a “spider”, a suspension device located behind the driver’s cone. Bonded to the coil, it physically restricts a coil's ability to transfer mechanical-acoustic signals to the cone. Some other drivers use damping fluid, springs, or other devices, all of which produce losses. This new Alpair 5 design completely removes all these restrictions. Its coil locates cleanly between the driver’s cone and motor sub-assembly, making the new 5 a pure free-to-air mechanical design.

The accuracy requirement for this new Alpair 5 component design, engineering, and detailed assembly go well beyond typical commercial audio-driver manufacturing. The front suspension operating tolerance is measured in milli-newtons. Production Alpair 5 drivers are made to within +/- 2.5Hz @ F Zero. All production units are then pair-matched to with +/- 1Hz @ F Zero.

The result is a detailed balanced sound representation across an ultra-wide frequency band for this class of small drivers. A typical box bass-reflex box application with an internal volume of 3 liters can be port tuned to below 80Hz while the driver retains is high range output up to 25kHz. The outcome is very easy to use versatile drivers suitable for many smaller applications where higher-end sound quality is desired from a mini-sized audio driver.

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Specifications

• Article number Alpair-5 Grey
• Woofer Series Alpair Series
• Woofer Type Full-range
• Nominal Diameter 3"
• Power Handling (RMS) 15 Watts
• Impedance (Z) 4 ohms
• Sensitivity 86.7 dB 2.83V/1m
• Frequency Response 90 to 25,000 Hz
• Voice Coil Diameter 1"
• DC Resistance (Re) 3.6 ohms
• Voice Coil Inductance (Le) 0.39 mH
• Resonant Frequency (Fs) 101.22 Hz
• Mechanical Q (Qms) 1.49
• Electromagnetic Q (Qes) 0.75
• Total Q (Qts) 0.50
• Diaphragm Mass Inc. Airload (Mms) 2.1 g
• Surface Area of Cone (Sd) 28.270 cm²
• BL Product (BL) 2.5 Tm
• Compliance Equivalent Volume (Vas) 0.047 ft.³
• Maximum Linear Excursion (Xmax) 3 mm
• Cone / Diaphragm Material Paper
• Surround Material Rubber
• Basket / Frame Material Glass-Fibre
• Magnet Material Ferrite
• Overall Outside Diameter 4.92"
• Baffle Cutout Diameter 3.64"
• Bolt Circle Diameter 4.45"
• # Mounting Holes 4