Technical Highlights

  • Power handling up to 120 W peak, 40 W continuous operation, 4 Ohm impedance.
  • 32 mm copper voice coil, frequency response from 80 to 23 kHz.
  • Coaxial tweeter with 15 mm voice coil, 91 dB sound pressure level.
  • More technical details
Regular price €62.40
Regular price -28% €86.90 selling price €62.40
2% discount with credit card

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ProductAPX 4

including VAT
Estimated delivery: Sep 16–Sep 21.
x pair
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1 year extra warranty

Every product purchased from Masori includes an additional year of warranty in the third year after purchase (months 25–36). We cover repair or replacement free of charge for covered warranty claims. Automatic and free – exclusively for Masori customers. Your statutory rights remain unaffected.

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Regular price €62.40
Regular price €86.90 selling price €62.40

The Audison APX 4 is a 4-inch coaxial speaker featuring a concentric coaxial tweeter. The construction includes a 32 mm voice coil made of pure copper and a water-resistant paper cone. It is equipped with an acoustic lens, a TPU suspension with a triple-wave profile, and a flat, compact basket. The system has a high-current quick-connect terminal with double contact and a temperature-resistant plastic cover. The continuous power handling is 40 watts RMS, and the peak power handling is 120 watts. All components have been developed and optimized using the KLIPPEL suite.

Features
  • 4-inch (10 cm) coaxial speaker
  • Concentric coaxial tweeter
  • Water-resistant paper cone
  • 32 mm voice coil made of pure copper
  • TPU suspension with triple-wave profile
  • Acoustic lens for linear frequency response
  • Optimized installation depth with flat basket
  • High-current quick-connect terminal
  • Developed with KLIPPEL suite
  • Power handling: 40 watts RMS
  • Power handling: 120 watts peak
  • Impedance: 4 ohms
Technical Specifications
  • Woofer size: 100 mm
  • Tweeter size: 24 mm
  • Frequency response: 80 Hz – 23,000 Hz
  • Sound pressure level: 91 dB
  • Magnet size: 75 x 40 x 10 mm
  • Tweeter voice coil diameter: 15 mm
  • Xmax: 1.3 mm
  • Vas: 1.5 l
  • Mms: 5.3 g
  • Cms: 0.3 mm/N
  • Bl: 3.2 T·m
  • Qts: 1.0
  • Qes: 1.2
  • Qms: 8.0
  • LE: 0.04 mH

Frequently Asked Questions about APX 4


What size is the Audison APX 4 speaker?

The Audison APX 4 has a woofer size of 100 mm and a tweeter diameter of 24 mm. Its compact size is ideal for vehicle applications where space is limited. The optimized installation depth and flat basket allow for seamless OEM integration, meaning the speaker can be integrated into existing systems without major modifications. The dimensions contribute to the versatility of this coaxial speaker, especially in tight or limited installation environments.

What is the frequency response of the APX 4 speaker?

The APX 4 offers an impressive frequency response of 80 Hz to 23 kHz. This wide frequency range ensures that both low and high tones are reproduced with high precision and clarity. The concentric coaxial tweeter, embedded within the woofer, provides an extremely smooth phase response. Additionally, the integrated acoustic lens ensures linear frequency reproduction, even when the speaker is not optimally aligned, which is essential for flexible placement within vehicle interiors.

What is the power handling of the Audison APX 4 speaker?

The Audison APX 4 speaker has a maximum power handling of 120 watts for peak loads and 40 watts for continuous operation. The 32 mm voice coil made of pure copper ensures high power handling and excellent control at low frequencies. This feature is particularly beneficial if you enjoy listening to music at high volumes and expect high output from your audio system, as it prevents the speaker from distorting or being overloaded at high volume levels. These specifications make the speaker optimal for various use scenarios in vehicles.

What makes the TPS suspension of the APX 4 special?

The Audison APX 4 speaker is equipped with a TPU suspension in a 'Triple-Wave' profile. This suspension ensures maximum linearity during the speaker's excursion, contributing to more precise reproduction and less distortion at high volumes. The TPU construction helps minimize unnecessary resonances and maximizes the linearity of the diaphragm's movement, significantly improving sound quality. This is particularly important for enthusiasts who value precise and uncolored sound reproduction, even when the speaker is installed in cramped vehicle cabins.

How does the concentric coaxial tweeter affect the sound of the Audison APX 4?

The concentric coaxial tweeter of the Audison APX 4 is uniquely integrated by being positioned inside the woofer. This design ensures that the tweeter and woofer radiate from a single point. This single-point emission promotes a uniform phase response and reduces phase shifts that can occur in traditional speaker arrangements. The effect is a clear and coherent sound that covers the entire listening area, ensuring that sound quality remains consistent regardless of the listener's position. This achieves an increase in acoustic transparency.

What role does water resistance play in the Audison APX 4 speaker?

The water resistance of the Audison APX 4 is ensured by the water-repellent paper cone. This makes the speaker ideal for use in vehicles that may be exposed to high humidity levels or splashes. The construction of the paper cone, developed with FEM simulation techniques and optimized with Klippel Scan Vibrometer, minimizes the risk of moisture damage. This permanently protects the structure of the speaker, increasing the product's durability and ensuring consistent performance even under demanding environmental conditions.

How does the flat basket affect the installation of the Audison APX 4 speaker?

The shallow basket of the Audison APX 4 is crucial for easy integration of the speaker into various vehicle models. With the optimized installation depth, the speaker is excellent for OEM integration; this means you can install the APX 4 into existing systems without the need for extensive modifications in the vehicle. The shallow basket also simplifies installation in tight spaces or in cars with limited installation room, which is a significant advantage if you want to save space in your vehicle.

What technical parameters influence the woofer of the Audison APX 4?

The woofer of the Audison APX 4 is defined by a range of technical parameters. It features a voice coil with a diameter of 32 mm and an Xmax of 1.3 mm, which describes the maximum displacement. The Bl value is 3.2 T·m, while Vas, the equivalent air spring stiffness, is at 1.5 l. This, combined with an Mms of 5.3 g, Cms of 0.3 mm/N, and Qts of 1, provides a finely tuned balance between stiffness, mass, and damping characteristics. These factors significantly contribute to the bass reproduction and overall efficiency of the speaker.

What distinguishes the quick-connect terminal of the APX 4 from other speakers?

The quick-connect terminal of the Audison APX 4 stands out due to several special features. This terminal is high-current capable and comes with a double contact design that ensures the current flow remains absolutely stable. The plastic cover of the terminal is temperature resistant, protecting the speaker from overheating and potential short circuits. These features guarantee that the speaker remains reliable under challenging conditions, while also speeding up and simplifying installation, as the terminal allows for an uncomplicated connection.

How is the Audison APX 4 optimized for off-center placement?

The Audison APX 4 is optimized for off-center placement through its acoustic lens. This lens corrects the frequency response and ensures context linearity by evenly distributing sound across a variety of positions in the space. No matter where the speaker is installed, the acoustic lens enables linear frequency reproduction, meaning you don't have to worry about suboptimal placements. This flexibility is particularly advantageous in vehicles, where there is often not much choice in placement or structural constraints exist.

Manufacturer information/responsible person

Elettromedia SpA
62018 Potenza Picena (MC)
Strada Regina km 3,500
Italy

Contact person:
Simone Iampieri
Executive Director Assistant
T +39 0733 870 813
Elettromedia SpA
62018 Potenza Picena (MC) Italy
Strada Regina km 3,500
T + 39 0733 870 870

Contact: simone.iampieri@elettromedia.it

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