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PURIFI PTT5.25M08-NAA-05 5.25″ Ultra Low Distortion Mid-range Woofer
€399.95
The PURIFI PTT5.25M08-NAA-05 is a 5.25 inch high-performance midrange driver engineered for ultra-low distortion and exceptional clarity in demanding loudspeaker designs. Designed and manufactured in Denmark, it is optimized specifically for midrange reproduction in high-end audio systems.
Available on backorder
Highlights of the PURIFI PTT5.25M08-NAA-05
- Optimized 5.25 inch midrange driver with ultra-low distortion characteristics.
- Black anodized aluminum cone combined with PURIFI Neutral Surround Technology.
- Negligible force factor modulation and ultra-low magnetic hysteresis distortion.
- High power handling up to 200 W IEC for demanding audiophile and DIY applications.
Product details PURIFI PTT5.25M08-NAA-05
PURIFI PTT5.25M08-NAA-05 5.25 inch Midrange Driver
The PURIFI PTT5.25M08-NAA-05 is a dedicated midrange driver featuring an 8 ohm nominal impedance and a resonance frequency of 41 Hz. With a total Q factor of 0.29 and an effective piston area of 84.9 cm², it is well suited for controlled and accurate midrange reproduction in multi-way loudspeaker systems.
The driver utilizes a black anodized aluminum cone paired with PURIFI’s Neutral Surround Technology, minimizing non-linearities and ensuring consistent performance across the usable excursion range. The force factor of 9.5 N/A and ultra-low magnetic hysteresis contribute to extremely low harmonic and intermodulation distortion, even at higher output levels.
Equipped with a 39 mm diameter, four-layer CCAW voice coil and a linear excursion of ±2.9 mm, the PTT5.25M08-NAA-05 offers precise control and thermal stability. The driver supports a long-term IEC power handling of 200 W and is optimized for use with a 2nd order high-pass Butterworth crossover at 200 Hz, making it an ideal choice for high-end audiophile loudspeakers and advanced DIY designs.
Specifications
| Article number | PTT5.25M08-NAA-05 |
| EAN | 9504853587875 |
| Woofer Type | Mid-range Woofer |
| Nominal Diameter | 5.25" |
| Power Handling (RMS) | 200 Watts |
| Impedance (Z) | 8 Ω |
| Sensitivity (SPL at 1m / 2.83V) | 85.2 dB |
| Voice Coil Diameter | 39 mm |
| DC Resistance (Re) | 6.3 Ω |
| Voice Coil Inductance (Le) | 0.35 mH |
| Resonant Frequency (Fs) | 41 Hz |
| Mechanical Q (Qms) | 6.3 |
| Electromagnetic Q (Qes) | 0.30 |
| Total Q (Qts) | 0.29 |
| Diaphragm Mass Inc. Airload (Mms) | 16.8 g |
| Mechanical Compliance of Suspension (Cms) | 0.92 mm/N |
| Surface Area of Cone (Sd) | 84.9 cm² |
| BL Product (BL) | 9.5 N/A |
| Compliance Equivalent Volume (Vas) | 9.4 Liters |
| Maximum Linear Excursion (Xmax) | +/- 2.9 mm |
| Driver's Mechanical Losses (Rms) | 0.68 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 |
| Article number | PTT5.25M08-NAA-05 |
| EAN | 9504853587875 |
| Woofer Type | Mid-range woofer |
|---|---|
| Nominal Diameter | 5.25″ |
| Power Handling (RMS) | 200 Watts |
| Impedance (Z) | 8 Ω |
| Sensitivity (SPL at 1m / 2.83V) | 85.2 dB |
| Voice Coil Diameter | 39 mm |
| DC Resistance (Re) | 6.3 Ω |
| Voice Coil Inductance (Le) | 0.35 mH |
| Resonant Frequency (Fs) | 41 Hz |
| Mechanical Q (Qms) | 6.3 |
| Electromagnetic Q (Qes) | 0.30 |
| Total Q (Qts) | 0.29 |
| Diaphragm Mass Inc. Airload (Mms) | 16.8 g |
| Mechanical Compliance of Suspension (Cms) | 0.92 mm/N |
| Surface Area of Cone (Sd) | 84.9 cm² |
| BL Product (BL) | 9.5 N/A |
| Compliance Equivalent Volume (Vas) | 9.4 Liters |
| Maximum Linear Excursion (Xmax) | +/- 2.9 mm |
| Driver's Mechanical Losses (Rms) | 0.68 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 |
