PURIFI PTT6.5X08-NFA-01 6.5″ Mid Woofer 8 Ohm
PURIFI PTT6.5X08-NFA-01 6.5″ Mid Woofer 8 Ohm
PURIFI PTT6.5X08-NFA-01 6.5″ Mid Woofer 8 Ohm
PURIFI PTT6.5X08-NFA-01 6.5″ Mid Woofer 8 Ohm
    PURIFI PTT6.5X08-NFA-01 6.5″ Mid Woofer 8 Ohm
    PURIFI PTT6.5X08-NFA-01 6.5″ Mid Woofer 8 Ohm
    PURIFI PTT6.5X08-NFA-01 6.5″ Mid Woofer 8 Ohm
    PURIFI PTT6.5X08-NFA-01 6.5″ Mid Woofer 8 Ohm

    PURIFI PTT6.5X08-NFA-01 6.5″ Mid Woofer 8 Ohm

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    PURIFI PTT6.5X08-NFA-01 6.5″ Ultra Low Distortion Long Stroke Driver 8 Ohm

    The PURIFI PTT6.5X08-NFA-01 a is a refined bass-mid-woofer, incorporating state of the art technology that is based on extended research. The result is a long-stroke woofer with unparalleled performance.

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    PURIFI PTT6.5X08-NFA-01 6.5″ Ultra Low Distortion Long Stroke Driver 8 Ohm

    The PURIFI PTT6.5X08-NFA-01 a is a refined bass-mid-woofer, incorporating state of the art technology that is based on extended research. The result is a long-stroke woofer with unparalleled performance.

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    Highlights

    A whole new take on driver design

    PURIFI’s Natural Surround

    Extreme low distortion over full excursion range

    Engineered and manufactured in Denmark

    Excellent midrange performance

    High power handling

     High linear excursion limit with constant force factor

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    Product Details

    PURIFI PTT6.5X08-NFA-01 bass-mid-woofer PURIFI is a fresh company that designs and manufactures extremely high-performance woofers 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 performances 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 to 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 motor system, suspension, cone, and surround. These models allowed for the optimization of each distortion mechanism separately. This systematic approach reduced all distortions mechanisms and keeps intermodulation distortion low. The result makes that the PTT6.5X08-NFA-01 is a compact 6.5” driver that parallels or even surpasses the bass performance of a low excursion, a large surface driver, while it also excels in midrange performance.

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    Specifications

    Article number PTT6.5X08-NFA-01

    Woofer Series -

    Woofer Type Bass-midwoofer

    Nominal Diameter 6.5"

    Power Handling (RMS) 250 watts

    Power Handling (max) -

    Continuous Program Power 80 watts

    Impedance (Z) 8 ohms

    Sensitivity 86.9 dB @ 2.83V/1m

    Frequency Response -

    Voice Coil Diameter 39 mm

    Magnet Weight -

    DC Resistance (Re) 6 ohms

    Voice Coil Inductance (Le) 0.53 mH @ 1kHz

    Resonant Frequency (Fs) 31 Hz

    Mechanical Q (Qms) 6.6

    Electromagnetic Q (Qes) 0.32

    Total Q (Qts) 0.30

    Diaphragm Mass Inc. Airload (Mms) 24.4 g

    Moving Mass Of Diaphragm (Mmd) -

    Mechanical Compliance of Suspension (Cms) 1.06 mm/N

    Surface Area of Cone (Sd) 132.7 cm²

    Volume of Displacement (Vd) 132.7 cm³

    BL Product (BL) 9.5

    Compliance Equivalent Volume (Vas) 26.4 liter

    Maximum Linear Excursion (Xmax) 10 mm

    Driver's Mechanical Losses (Rms) 0.72 kg/s

    Cone / Diaphragm Material Proprietary Fibre Mix

    Surround Material Nitrile rubber

    Voice Coil Wire Material Aluminum

    Voice Coil Former Fiberglass

    Dual Voice Coil -

    Basket / Frame Material Aluminum alloy diecast

    Magnet Material Ferro-magnetic

    Shielded -

    Overall Outside Diameter 176 mm

    Overall Depth 90.2 mm

    Baffle Cutout Diameter 145 mm

    Bolt Circle Diameter 166 mm

    # Mounting Holes 6

    Mounting Hole Diameter 5.1 mm

    Sealed Volume -

    Sealed F3 -

    Vented Volume -

    Vented F3 -

    PTT6.5X08-NFA-01
    6 Items

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