Bold North Audio

Studio Musicians playing music behind Bold North Audio logo

Science Serving Music

Bold North Audio products aspire to be the most accurate and thoroughly engineered audio transducers available. Bold North Audio world-class performance is rooted in fundamental scientific research, careful materials selection, precision manufacturing and most of all, love of music.

We harness cutting-edge Klippel vibrational analysis science to reveal the keys to superior audio performance.  While we rely heavily on objective science to lead us, we understand that most of all speakers need to tell the musical truth. Our engineers, musicians, and recording studio veterans are the final judges of when a design is worthy of the Bold North Audio logo.


 

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  1. Mid bass woofer 4 inch square Bold North Audio model 84071

    Part # 84071, Model # BMW-4001

    4" (102 mm) 8 Ohm, Carbon Fiber Mid-Bass Woofer
    $78.00
    Size, Nominal (inch & mm) 4"
    Nominal Impedance (Z) (Ω) 8
    Rated Power IEC268-5 (W) 25 Watts
    Sensitivity (dB SPL) ¹ 88
    Frequency Range (Hz) 60 - 12,000
    Resonant Frequency (Fs) (Hz) 68
  2. Carbon fiber woofer with phase plug 6.5 inch round Bold North Audio model 82130

    Part # 82130, Model # BWF-6503

    6.5" (165 mm) Woofer with Red Carbon Fiber Cone
    $129.36
    Size, Nominal (inch & mm) 6"
    Nominal Impedance (Z) (Ω) 8
    Rated Power IEC268-5 (W) 75 Watts
    Sensitivity (dB SPL) ¹ 87
    Frequency Range (Hz) 35 - 9,000
    Resonant Frequency (Fs) (Hz) 43
  3. XBL² woofer 6.5 inch round Bold North Audio model 82141

    Part # 82141, Model # BWX-6502

    6.5” (165 mm) XBL² High Excursion, Ultra Low Distortion Woofer
    Size, Nominal (inch & mm) 6"
    Nominal Impedance (Z) (Ω) 8
    Rated Power IEC268-5 (W) 85 Watts
    Sensitivity (dB SPL) ¹ 85
    Frequency Range (Hz) 40 - 1,000
    Resonant Frequency (Fs) (Hz) 45
  4. A 6.5" low distortion XBL² woofer by Bold North Audio - 82109.

    Part # 82109, Model # BWX-6501

    6.5” (165 mm) XBL² High Excursion, Low Distortion Woofer
    Size, Nominal (inch & mm) 6"
    Nominal Impedance (Z) (Ω) 8
    Rated Power IEC268-5 (W) 85 Watts
    Sensitivity (dB SPL) ¹ 85
    Frequency Range (Hz) 40 - 4,000
    Resonant Frequency (Fs) (Hz) 47
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