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        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer

        PURIFI PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer

        €399,95

        2 expected on 01-05-2026

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        PURIFI PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer

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        Brand: PURIFI
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        5.25" | 8 Ω
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        € 330,54€ 399,95 Out of stock2 expected on 01-05-2026
        • -5% Purchase 4 for only € 379,95 per piece
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        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer

        Product description PURIFI PTT5.25X08-NAA-05 Woofer

        The Purifi PTT5.25X08-NAA-05 is a high-performance 133 mm extended woofer engineered for ultra low distortion and long linear excursion. Designed for uncompromised sound quality, it delivers exceptional bass control and clean midrange performance in compact high-end loudspeaker systems.

         

        Highlights of the Purifi PTT5.25X08-NAA-05

        • Real long-stroke design with ±9.8 mm linear excursion for low distortion across the full operating range.
        • Negligible force factor modulation and low magnetic hysteresis distortion for superior clarity.
        • Black anodized aluminum cone combining rigidity and low moving mass.
        • Designed and manufactured in Denmark with a focus on precision and consistency.

         

        Product details Purifi PTT5.25X08-NAA-05

        Purifi PTT5.25X08-NAA-05 133 mm Extended Woofer

         

        The Purifi PTT5.25X08-NAA-05 is a premium 8 ohm extended woofer developed for high-end hi-fi and studio monitor applications. With a resonance frequency of approximately 29 Hz and a total Q factor of 0.30, it is well suited for compact sealed or vented enclosures where accurate low-frequency reproduction is required.

         

        The driver features a rigid black anodized aluminum cone and a carefully optimized motor system that minimizes force factor modulation and inductance variation. This results in exceptionally low harmonic and intermodulation distortion, even at high excursion levels, while preserving clean and detailed midrange response.

         

        A 39 mm diameter, four-layer CCAW voice coil combined with a long-stroke suspension enables a linear excursion of ±9.8 mm and a mechanical limit of ±14.0 mm. The effective piston area of approximately 85 cm2 and an equivalent volume of around 12 L support deep bass capability from a compact form factor.

         

        The PTT5.25X08-NAA-05 is rated for 250 W IEC long-term power handling, making it suitable for demanding audiophile and DIY loudspeaker designs. Its combination of advanced motor technology, robust mechanical construction, and precise engineering ensures consistent, high-fidelity performance in critical listening applications.

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        Specifications

        Article number
        PTT5.25X08-NAA-05
        EAN
        9508281119486
        Woofer Type
        Mid-range Woofer
        Nominal Diameter
        5.25"
        Power Handling (RMS)
        70 Watts
        Power Handling (max)
        250 Watts
        Impedance (Z)
        8 Ω
        Sensitivity (SPL at 1m / 2.83V)
        83.1 dB
        Frequency Response
        30-6.000 Hz
        Voice Coil Diameter
        39 mm
        DC Resistance (Re)
        5.9 Ω
        Voice Coil Inductance (Le)
        0.50 mH
        Resonant Frequency (Fs)
        30 Hz
        Mechanical Q (Qms)
        5.8
        Electromagnetic Q (Qes)
        0.32
        Total Q (Qts)
        0.3
        Diaphragm Mass Inc. Airload (Mms)
        23.5 g
        Mechanical Compliance of Suspension (Cms)
        1.22 mm/N
        Surface Area of Cone (Sd)
        84.9 cm²
        BL Product (BL)
        9.1 N/A
        Compliance Equivalent Volume (Vas)
        12.4 Liters
        Maximum Linear Excursion (Xmax)
        +/-9.8 mm
        Driver's Mechanical Losses (Rms)
        0.76 kg/s
        Voice Coil Wire Material
        CCAW
        Overall Outside Diameter
        147 mm
        Overall Depth
        75 mm
        Baffle Cutout Diameter
        121 mm
        Bolt Circle Diameter
        4.2 mm
        # Mounting Holes
        6

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        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        € 330,54
        € 399,95
        PTT5.25X08-NAA-05 5.25" Ultra Low Distortion Woofer
        Out of stock
        2 expected on 01-05-2026
        Add to cart
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