PURIFI PTT4.0PR-NF2-01 Passive Radiator
PURIFI PTT4.0PR-NF2-01 Passive Radiator
PURIFI PTT4.0PR-NF2-01 Passive Radiator
    PURIFI PTT4.0PR-NF2-01 Passive Radiator
    PURIFI PTT4.0PR-NF2-01 Passive Radiator
    PURIFI PTT4.0PR-NF2-01 Passive Radiator

    PURIFI PTT4.0PR-NF2-01 Passive Radiator

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    PURIFI PTT4.0PR-NF2-01 Passive Radiator

    The PTT4.0PR is a 4” high-performance passive radiator featuring PURIFI ’s research based technologies, including the Natural Surround and a cone made from a proprietary fibre mix.

     

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    PURIFI PTT4.0PR-NF2-01 Passive Radiator

    The PTT4.0PR is a 4” high-performance passive radiator featuring PURIFI ’s research based technologies, including the Natural Surround and a cone made from a proprietary fibre mix.

    .

    Highlights

    A whole new take on passive radiator design

    PURIFI ’s Natural Surround

    Bimax spider

    High linear excursion limit

    Tunable mass

    Engineered and manufactured in Denmark

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    Product Details

    PURIFI PTT4.0PR Passive Radiator PURIFI is a fresh company that designs and manufactures extreme high performance transducers and amplifier modules. Don’t let the freshness fool you; Their leadership team consists out of some well-respected audio technology pioneers. PURIFI developed a deep understanding of many performance degrading aspects for both amplifiers and transducers.

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    The challenge

    Loudspeaker drivers are known to add a large, if not the largest, amount of distortion on an audio signal chain. Reducing this distortion is a challenge with the complication of fine-tuning to improve one part (e.g. harmonic distortion) often results in a degradation of  another part (e.g. intermodulation distortion). These distortions consist out of several separate distortion mechanisms. By carefully mapping and completely understanding these mechanisms, PURIFI succeeded in improving the overall performance by a large degree.

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    A whole new take on driver design

    PURIFI developed mathematical models for the suspension, cone and surround. These models allowed for the optimization of different distortion mechanism separately. The result makes that the PTT6.5PR is a perfect passive radiator to accompany the PTT4.0W04 in a size efficient enclosure. Looking for a passive radiator the accompany the larger PTT6.5W04 or PTT6.5W08? Take a look at the PTT6.5PR

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    Specifications

    Article number PTT4.0PR-NF2-01

    Woofer Series -

    Woofer Type Passive radiator

    Nominal Diameter 4"

    Power Handling (RMS) -

    Power Handling (max) -

    Continuous Program Power -

    Impedance (Z) -

    Sensitivity -

    Frequency Response -

    Voice Coil Diameter -

    Magnet Weight -

    DC Resistance (Re) -

    Voice Coil Inductance (Le) -

    Resonant Frequency (Fs) 24 Hz

    Mechanical Q (Qms) 7.0

    Electromagnetic Q (Qes) -

    Diaphragm Mass Inc. Airload (Mms) 30g

    Moving Mass Of Diaphragm (Mmd) -

    Mechanical Compliance of Suspension (Cms) 1.41 mm/N

    Surface Area of Cone (Sd) 57 cm²

    Volume of Displacement (Vd) 79.8 cm³

    BL Product (BL) -

    Compliance Equivalent Volume (Vas) 6.4 liter

    Maximum Linear Excursion (Xmax) 14 mm

    Driver's Mechanical Losses (Rms) -

    Cone / Diaphragm Material Proprietary Fibre Mix

    Surround Material Nitrile rubber

    Voice Coil Wire Material -

    Voice Coil Former -

    Dual Voice Coil -

    Basket / Frame Material Aluminum alloy diecast

    Magnet Material -

    Shielded -

    Overall Outside Diameter 125 mm

    Overall Depth 39.5 mm

    Baffle Cutout Diameter 100 mm

    Bolt Circle Diameter 115 mm

    # Mounting Holes 6

    Mounting Hole Diameter 4.2 mm

    Sealed Volume -

    Sealed F3 -

    Vented Volume -

    Vented F3 -

    PTT4.0PR-NF2-01
    4 Items

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