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    Markaudio Alpair-12PW 8" Paper Woofer

    € 115,66€ 139,95 Out of stock: delivery time is 4-6 weeks
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    Product description

    The Alpair 12PW is a audiophile grade paper and glass strand reinforced coned bass-mid driver. Along with its full-range sister drivers, 6P,10P and 12P, the Alpair 12PW is designed for the serious music listener. The 12PW’s relatively flat response is designed to deliver a neutral sound. The mid-high range gradually falls away above 10kHz.

     

    Highlights

    • Gradual roll-off @10kHz
    • Lightweight paper cone
    • Longthrow suspension
    • Flat response

     

    Product details

    Markaudio Alpair-12PW 8” Paper Woofer

     

    The Alpair 12PW is a audiophile grade paper and glass strand reinforced coned bass-mid driver. Along with its full-range sister drivers, 6P,10P and 12P, the Alpair 12PW is designed for the serious music listener. The 12PW’s relatively flat response is designed to deliver a neutral sound. The mid-high range gradually falls away above 10kHz.

     

    The development of this driver follows its full-range sister unit, the Alpair 12P. Both drivers are Semi-Free-To-Air designs, relying solely on their rear suspensions for mechanical operation. The Alpair 12PW has a reinforced rear suspension and a new coil to enable handling of typical audiophile low frequency loads (not constant low frequency loads).

     

    The 12PW has a long mechanical throw, limited by its arrestor to 8.5mm (1 way). This driver is a low-mass design, its power-train has a moving mass of 11.7 grams yet delivers a Vas of 45 litres with a total Q of 0.39, making it ideal for larger scale purist box designs.

     

    An all-new computer controlled bonding process deployed on this driver, delivering ultra tight tolerances in critical parts of the 12PW’s power-train assembly.

     

    The 12PW is primarily designed to be partnered with the Alpair 7P yet will also be a excellent partner for many tweeters. The marriage between 7P and 12PW promises much in the way of deep rich bass and fine mid-high range detail.

    Specifications

    Article number
    Alpair-12PW
    Woofer Series
    Alpair Series
    Woofer Type
    Midwoofer
    Nominal Diameter
    8"
    Power Handling (RMS)
    40 Watts
    Impedance (Z)
    8 ohms
    Sensitivity
    87.5 dB 2.83V/1m
    Frequency Response
    30 to 12,000 Hz
    Voice Coil Diameter
    1"
    DC Resistance (Re)
    5.4 ohms
    Voice Coil Inductance (Le)
    0.49 mH
    Resonant Frequency (Fs)
    73.4 Hz
    Mechanical Q (Qms)
    1.44
    Electromagnetic Q (Qes)
    0.54
    Total Q (Qts)
    0.39
    Diaphragm Mass Inc. Airload (Mms)
    11.69 g
    Surface Area of Cone (Sd)
    147.4 cm²
    BL Product (BL)
    5.31 Tm
    Compliance Equivalent Volume (Vas)
    1.59 ft.³
    Maximum Linear Excursion (Xmax)
    8.5 mm
    Cone / Diaphragm Material
    Paper
    Surround Material
    Rubber
    Basket / Frame Material
    Glass-Fibre
    Magnet Material
    Ferrite
    Overall Outside Diameter
    8.15"
    Overall Depth
    3.78"
    Baffle Cutout Diameter
    6.61"
    Bolt Circle Diameter
    7.32"
    # Mounting Holes
    4

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    Alpair-12PW 8" Paper Woofer
    € 115,66
    € 139,95
    Alpair-12PW 8" Paper Woofer
    0 In stock: delivery time is 4-6 weeks
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