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PT1025M
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The PT1025M is a compact 1-inch ferrite high-frequency compression driver designed for integration into compatible professional loudspeaker systems. It combines a 25.4 mm throat, a 1-inch copper-clad aluminum voice coil and a ferrite magnetic structure in a compact 80 mm diameter housing.
With a rated sensitivity of 106 dB at 1 W/1 m, the PT1025M provides efficient high-frequency output while requiring relatively low amplifier power. Its specified frequency range of 1.5 kHz to 18 kHz makes it suitable for reproducing the upper-frequency content required in two-way and multi-way loudspeaker designs.
The driver is available in 8-ohm and 16-ohm nominal impedance options, allowing system designers to select the version that best matches the amplifier, crossover and overall loudspeaker configuration.
The PT1025M has a rated sensitivity of 106 dB at 1 W/1 m. This high sensitivity supports efficient conversion of amplifier power into high-frequency acoustic output.
A 25.4 mm throat and an overall diameter of 80 mm make the driver suitable for compact professional loudspeaker projects where installation space is limited.
The driver uses a ferrite magnet with a specified magnetic flux density of 1.55 T, providing the magnetic system required for high-frequency driver operation.
The 1-inch voice coil is made from copper-clad aluminum and uses a Kapton former. The diaphragm material is Mylar.
Nominal impedance options of 8 ohms and 16 ohms provide flexibility when matching the driver to different amplifier channels, crossover networks and loudspeaker system configurations.
The manufacturer recommends a crossover frequency above 2.5 kHz, giving system designers a clear reference point when configuring passive crossovers or DSP-based high-pass filters.
The PT1025M uses a combination of established compression-driver materials and components:
● Ferrite magnet
● Copper-clad aluminum voice coil
● Kapton voice coil former
● Mylar diaphragm
● 1-inch voice coil diameter
● 1-inch throat diameter
These specifications make it suitable for use as the high-frequency section of a properly designed professional loudspeaker system.
The PT1025M has a specified operating frequency range of 1,500 Hz to 18,000 Hz. Its rated sensitivity is 106 dB at 1 W/1 m, while the recommended crossover frequency is above 2,500 Hz.
For appropriate system operation, the driver should be used with a compatible horn or waveguide and a correctly configured crossover or high-pass filter. Actual frequency response and system output will also depend on the horn geometry, crossover settings, equalization, amplifier and complete loudspeaker design.
The PT1025M can be considered for integration into compatible professional audio products and custom loudspeaker projects, including:
● Two-way professional PA loudspeakers
● Multi-way sound reinforcement systems
● Stage monitor speaker systems
● Portable professional loudspeakers
● Installed sound systems
● Custom OEM and ODM loudspeaker projects
● Replacement or system-development applications requiring a 1-inch HF driver
Application suitability should be evaluated according to the required sound pressure level, crossover design, horn compatibility and intended operating environment.
Use the PT1025M with a horn or waveguide designed for a 1-inch compression driver throat. Mechanical compatibility should be confirmed before installation because the available specification sheet does not state a detailed thread standard or complete mounting-interface specification.
When configuring the system:
● Select the correct 8-ohm or 16-ohm version.
● Use a crossover frequency above 2.5 kHz as recommended.
● Apply an appropriate high-pass filter to prevent excessive low-frequency energy from reaching the driver.
● Keep amplifier output within the driver’s specified power limits.
● Confirm horn, crossover and polarity settings during final system testing.
● Do not assume outdoor or waterproof suitability unless the completed loudspeaker enclosure provides the required environmental protection.
Parameter | Specification |
Model | PT1025M |
Product Type | Ferrite HF Compression Driver |
Throat Diameter | 1 inch / 25.4 mm |
Nominal Impedance | 8 ohms or 16 ohms |
Power Capacity | 20 W |
Peak Power | 40 W |
Sensitivity | 106 dB, 1 W/1 m |
Frequency Range | 1,500 Hz–18,000 Hz |
Recommended Crossover | Above 2,500 Hz |
Magnet Material | Ferrite |
Magnetic Flux Density | 1.55 T |
Voice Coil Material | Copper-Clad Aluminum |
Voice Coil Former | Kapton |
Diaphragm Material | Mylar |
Voice Coil Diameter | 1 inch / 25.4 mm |
Overall Diameter | 80 mm |
Depth | 65 mm |
Net Weight | 0.7 kg |
The official specification sheet lists the following carton information:
Packing Parameter | Specification |
Quantity per Carton | 12 pieces |
Gross Carton Weight | 9.1 kg |
Carton Dimensions | 315 × 210 × 155 mm |
Packaging materials, moisture resistance and impact-protection grades are not specified in the current product documentation and should not be added to the product page without further confirmation.
The PT1025M is a 1-inch ferrite high-frequency compression driver intended for integration into compatible horns, waveguides and professional loudspeaker systems.
Its rated sensitivity is 106 dB at 1 W/1 m.
The PT1025M is specified with 8-ohm or 16-ohm nominal impedance options. The required impedance should be confirmed when placing an order.
The recommended crossover frequency is above 2,500 Hz. The final crossover point and filter slope should be determined according to the horn, amplifier and complete loudspeaker design.
The specified power capacity is 20 W, with a peak power rating of 40 W.
The PT1025M uses a ferrite magnet, a copper-clad aluminum voice coil, a Kapton voice coil former and a Mylar diaphragm.
