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Hartley 207 MSG // 7
Hartley 207 MSG // 7
Hartley 207 MSG // 7

Hartley 207 MSG // 7" Driver / Mid-Tweeter #1

$ 290.39

Availability: 100 in stock
  • Condition: Seller refurbished
  • All returns accepted: Returns Accepted
  • Refund will be given as: Money Back
  • Item must be returned within: 30 Days
  • Return shipping will be paid by: Buyer

    Description

    This beautiful 7" 8 ohm mid-tweeter has been fully tested and is functioning properly. There are no cracks, tears, or repairs. Phenomenal driver with incredibly rich history.
    Condition
    9/10
    Orig. MSRP
    5
    Specs
    Type
    7" mid/tw
    Nominal Impedance (ohms)
    8
    Minimum Power Recommendation (RMS)
    25
    Maximum Power Recommendation (RMS)
    75
    Maximum Peak Power Recommendation (RMS)
    150
    Voice Coil Diameter
    1"
    Length Of Wire On Voice Coil (meters)
    8 (2 layers)
    Voice Coil Wire Size
    #33
    Voice Coil Wire Diameter
    .008"
    Turns Of Wire On Voice Coil
    100
    Voice Coil Wire
    Round Copper With Custom High Temperature Baked Resin Coating
    D.C. Resistance Of Voice Coil (ohms)
    5Ω
    Voice Coil Axial Length
    .375"
    Electromagnetic Coupling Constant (Bl)
    8.8
    Effective Mass Of Voice Coil, Cone And Spider (grams)
    21g
    Effective Piston Diameter Of Cone
    5.625"
    Maximum Peak To Peak Excursion
    .062"
    Free Field Resonance (Hz)
    1500
    Magnet Material And Structure
    Custom Coated Ceramic, D.C. Magnetized, Equalized Flux Module Structure (EFM)
    Total Magnet Weight
    5 lbs.
    Flux Density (Weber/m2)
    1.1
    Recommended Frequency Range (Hz)
    3000-20,000
    Liner Notes
    In the past, very special people have known about HARTLEY speakers. Audiophiles, engineers, musicians, recording technicians, scientists and other professionals who use sound or consider sound to be a very important part of their lives or careers. No matter what the price, HARTLEY speakers are considered among the best available anywhere in the world. Meticulous hand-crafting and unique problem solving of the physics of loudspeakers are the reasons for our long standing reputation. We don't sell a lot of speakers that way, but we don't have to compromise our standards either. In fact some of our drivers require over fifty hand operations to build.