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        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer

        PURIFI PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer

        €379,95

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        PURIFI PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer

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        Brand: PURIFI
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        5.25" | 4 Ω
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        € 314,01€ 379,95 Out of stock
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        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer

        Product description PURIFI PTT5.25M04-NAA-05 Mid-range Woofer

        The PURIFI PTT5.25M04-NAA-05 is a high-performance 5.25 inch midrange driver engineered for ultra-low distortion and exceptional clarity. Designed for demanding hi-fi and studio applications, it delivers highly accurate midrange reproduction with minimal coloration.

         

        Highlights of the PURIFI PTT5.25M04-NAA-05

        • Optimized 5.25 inch midrange driver with ultra-low distortion characteristics.
        • Black anodized aluminum cone for high stiffness and controlled breakup behavior.
        • Advanced motor system with negligible force factor modulation and low magnetic hysteresis.
        • Designed and manufactured in Denmark for precision and consistency.

         

        Product details PURIFI PTT5.25M04-NAA-05

        PURIFI PTT5.25M04-NAA-05 5.25 inch Midrange Driver

         

        The PURIFI PTT5.25M04-NAA-05 is a dedicated 4 ohm midrange driver developed to meet the needs of high-end loudspeaker systems where transparency and low distortion are critical. With a resonance frequency of 39 Hz and a total Q factor of 0.24, it is well suited for controlled midrange operation in multi-way designs. The driver achieves a sensitivity of 87.4 dB at 2.83 V RMS measured at 1 meter, providing a solid balance between efficiency and precision.

         

        The cone is manufactured from black anodized aluminum, offering high rigidity and excellent damping properties. This construction helps maintain pistonic motion across the intended frequency range and minimizes resonances. The effective piston area of 85 cm2 and a moving mass of 17.3 g contribute to fast transient response and accurate vocal and instrumental reproduction.

         

        The motor system is engineered to deliver ultra-low distortion through minimal force factor modulation and reduced magnetic hysteresis. A linear excursion capability of ±2.9 mm ensures clean output under dynamic conditions, while a mechanical excursion limit of ±14.0 mm provides additional headroom and reliability. The driver incorporates PURIFI’s Neutral Surround Technology to further enhance linearity and consistency throughout its operating range.

         

        Power handling is rated at 200 watts according to IEC standards, making the PTT5.25M04-NAA-05 suitable for both high-output home audio systems and professional monitoring applications. Physical dimensions include a basket diameter of 147 mm, a cutout diameter of 121 mm, and a built-in depth of 75 mm, allowing straightforward integration into compact and precisely engineered loudspeaker enclosures.

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        Specifications

        Article number
        PTT5.25M04-NAA-05
        EAN
        9506131954485
        Woofer Type
        Mid-range Woofer
        Nominal Diameter
        5.25"
        Power Handling (RMS)
        200 Watts
        Impedance (Z)
        4 Ω
        Sensitivity (SPL at 1m / 2.83V)
        87.4 dB
        Voice Coil Diameter
        39 mm
        DC Resistance (Re)
        3.9 Ω
        Voice Coil Inductance (Le)
        0.26 mH
        Resonant Frequency (Fs)
        39 Hz
        Mechanical Q (Qms)
        6.5
        Electromagnetic Q (Qes)
        0.25
        Total Q (Qts)
        0.24
        Diaphragm Mass Inc. Airload (Mms)
        17.3 g
        Mechanical Compliance of Suspension (Cms)
        0.97 mm/N
        Surface Area of Cone (Sd)
        84.9 cm²
        BL Product (BL)
        8.1 N/A
        Compliance Equivalent Volume (Vas)
        9.9 Liters
        Maximum Linear Excursion (Xmax)
        +/- 2.9 mm
        Driver's Mechanical Losses (Rms)
        0.65 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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        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        € 314,01
        € 379,95
        PTT5.25M04-NAA-05 5.25" Ultra Low Distortion Mid-range Woofer
        Out of stock
        Add to cart
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