MCM Electronics

4" Alloy Full-Range Speaker By Audible Physics (425-AL) MCM Part #52-890

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$10.50 
Reg. Price: $55.99
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This product currently has limited stock.

The AL line of Audible Physics drivers is truly a testament to proper speaker design. The AL line is named with respect to the aluminum-alloy used for the cone, a material that is both lightweight and rigid. This provides the 425-AL the ability to play high-frequencies accurately. The 425-AL is also able to play lower frequencies (down to 70 Hz) with authority. The versatility of this 4" gives it the ability to be used either as a midrange, or as a fullrange driver in on-axis applications.

Specifications Top

For many years, Audible Physics has been designing and producing world class loud speaker drivers for many home audio companies as an OEM. They discovered their niche in the high fidelity miniature loudspeaker drivers soon after starting. In 2009, Audible Physics began producing speaker drivers under their own name, and does so with one of the highest quality standards in the industry. In 2016, they had chosen MCM Electronics to be the official distributor of their home audio products in North America.

Dimensions
  • Flange Thickness: 0.20"
  • Mounting Depth: 2.06"
  • Cut-out Diameter: 3.74"
  • Overall Diameter: 4.78"
Technical Specifications
Nominal power (Rms): 35 Watts
Instant (10 ms) max power (Peak): 80 Watts
Sound pressure level (SPL): 87 dB
Frequency range: 70 ~ 4000 Hz
Maximum linear excursion peak to peak (Xmax): 9mm
Maximum excursion peak to peak: 20mm
Magnet size: 85 mm x 15 mm (3.35 in. x 0.59 in.)
Voice coil diameter: 25.5 mm (1 inch)
Winding height: 14 mm (0.55 inches)

Thiele Small Parameters
Impedance (Znom): 8 ohm
DC resistance (Re): 6.1 ohm
Voice coil inductance (Le): 1.26 mH
Resonant Frequency (Fs): 71 Hz
Mechanical Q factor (Qms): 2.31
Electrical Q factor (Qes): 0.45
Total Q factor (Qts): 0.38
Moving mass (Mms): 5.59 g
Suspension compliance (Cms): 0.88 mm/N
Effective diameter (D): 8.3 cm (3.27 inches)
Effective piston area (Sd): 54.1 sq. cm (8.39 square inches)
Equivalent volume (Vas): 3.67 L
Force factor (Bl): 5.81 Tm
Part Numbers
MCM Part #:52-890
Audible Physics Part #:425-AL
Package Specifications & Dimensions
Weight:2.1 lbs.
Hazardous:Yes
RoHS Comp:No
Warranty:90 days
Need to Return?
Length:5.25 in.
Width:4.75 in.
Height:3 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No

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