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        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer

        PURIFI PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer

        €379,95

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        PURIFI PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer

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        Brand: PURIFI
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        5.25" | 4 Ω
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        € 314,01€ 379,95 Out of stock
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        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer

        Product description PURIFI PTT5.25X04-NAA-05 Woofer

        Purifi PTT5.25X04-NAA-05 is a high performance extended woofer engineered for ultra low distortion and true long stroke behavior. Designed for demanding hi-fi and DIY loudspeaker applications, it delivers controlled bass extension and clean midrange performance from a compact 133 mm class driver.

         

        Highlights of the Purifi PTT5.25X04-NAA-05

        • True long stroke design with linear excursion of plus minus 9.8 mm for low distortion output.
        • Black anodized aluminum cone optimized for stiffness, low mass, and controlled breakup.
        • Low magnetic hysteresis and negligible force factor modulation for clean midrange reproduction.
        • High IEC power handling of 250 W in a compact 4 ohm woofer format.

         

        Product details Purifi PTT5.25X04-NAA-05

        Purifi PTT5.25X04-NAA-05 5.25 inch Extended Woofer

         

        The Purifi PTT5.25X04-NAA-05 is a 4 ohm extended woofer developed to deliver uncompromised sound quality across bass and midrange frequencies. With a resonance frequency of 29 Hz and a total Q factor of 0.27, it is well suited for compact vented or sealed enclosures where controlled low frequency extension is required.

         

        The driver features a black anodized aluminum cone combined with a long stroke motor system that maintains low distortion across the full excursion range. Linear Xmax of plus minus 9.8 mm and mechanical excursion capability of plus minus 14.0 mm ensure reliable output even at high listening levels, while maintaining excellent transient control.

         

        With an effective piston area of approximately 85 cm2 and a sensitivity of 84.9 dB at 2.83 Vrms at 1 meter, the PTT5.25X04-NAA-05 balances efficiency with precision. The 39 mm diameter voice coil with four layers and CCAW winding contributes to high thermal stability and consistent performance under load.

         

        Designed and manufactured in Denmark, this extended woofer is ideal for high end multiway loudspeakers, compact high output monitors, and advanced DIY projects where ultra low distortion and accurate sound reproduction are essential.

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        Specifications

        Article number
        PTT5.25X04-NAA-05
        EAN
        9508631185475
        Woofer Type
        Woofer
        Nominal Diameter
        5.25"
        Power Handling (RMS)
        250 Watts
        Impedance (Z)
        4 Ω
        Sensitivity (SPL at 1m / 2.83V)
        84.9 dB
        Voice Coil Diameter
        39 mm
        DC Resistance (Re)
        3.6 Ω
        Voice Coil Inductance (Le)
        0.37 mH
        Resonant Frequency (Fs)
        29 Hz
        Mechanical Q (Qms)
        5.9
        Electromagnetic Q (Qes)
        0.28
        Total Q (Qts)
        0.27
        Diaphragm Mass Inc. Airload (Mms)
        25.9 g
        Mechanical Compliance of Suspension (Cms)
        1.15 mm/N
        Surface Area of Cone (Sd)
        84.9 cm²
        BL Product (BL)
        7.9 N/A
        Compliance Equivalent Volume (Vas)
        11.8 Liters
        Maximum Linear Excursion (Xmax)
        +/- 9.8 mm
        Driver's Mechanical Losses (Rms)
        0.81 kg/s
        Cone / Diaphragm Material
        Black Anodized Aluminum
        Overall Outside Diameter
        147 mm
        Overall Depth
        75 mm
        Baffle Cutout Diameter
        121 mm
        Bolt Circle Diameter
        138 mm
        # Mounting Holes
        6
        Mounting Hole Diameter
        4.2 mm

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        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        € 314,01
        € 379,95
        PTT5.25X04-NAA-05 5.25" Ultra Low Distortion Woofer
        Out of stock
        Add to cart
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