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  5. PRA 13

PRA 13

1 Review

60 Watt

PRA 13

1 Review

Technical Highlights

  • Power: 60W RMS, 90W max, Sound pressure: 91 dB, Impedance: 3 Ω.
  • High-quality 12 dB crossover, Installation depth: 57 mm, 25 mm tweeter.
  • Woofer/midrange: 130 mm, Magnet material: Ferrite, Cms: 0.55 mm/N.
  • More technical details
€165.00
-13% €189.00 €165.00
2% discount with credit card
Incl. VAT
Estimated delivery Sep 14 to Sep 17.
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Datasheet
FocalAccess 130AC
Focal-Access 130AC-5" (13cm) Koaxial-Lautsprecher-masori-kaufen
A silver Musway NX400.1 mono car amplifier with control buttons, ports, and a separate black control knob beside it.
MuswayNX400.1
ETON-PRA 13-5" (13cm) Lautsprecherset-masori-kaufen
€165.00
€189.00 €165.00

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Product description

The PRA 13 speaker set from Eton is a 5-inch speaker set that stands out for its high-quality construction and powerful technology. It features a 130 mm woofer/midrange driver with a rib-reinforced paper/glass fiber cone, manufactured using a special production process. The powerful ferrite magnet ensures optimal cooling, while the aluminum dome tweeter reproduces the finest details. This combination offers a rated power handling of 60 watts RMS and a music power handling of 90 W with a characteristic sound pressure of 91 dB. In addition, the set is equipped with a high-quality 12 dB inline crossover and has a shallow installation depth of 57 mm, allowing for flexible installation. Developed in Germany, it delivers maximum performance even without an additional amplifier, directly from the factory radio or head unit.

Product Features

  • 130 mm (5 inch) woofer/midrange driver with rib-reinforced paper/glass fiber cone
  • Powerful ferrite magnet with large core hole for optimal cooling
  • Reinforced, powder-coated metal basket in double-strut design with additional ventilation openings
  • High-performance 3-ohm voice coil for maximum output even without an additional amplifier, directly from the factory radio / head unit
  • 25 mm (1") aluminum dome tweeter with fabric surround for the finest details, including high-quality 12 dB inline crossover, surface-mount and flush-mount housings with swivel & tilt function
  • 60 watt RMS rated power, 90 W music power handling with a characteristic sound pressure of 91 dB (2.83V/1m)
  • 132 / 147 mm outer diameter and 112 mm cutout diameter
  • Shallow installation depth of 57 mm
  • Developed in Germany

Technical Data

  • Nominal impedance Zn 3 Ω
  • Total moving mass (including air mass) MMD 9.6 g
  • DC resistance Re 2.6 Ω
  • Effective diaphragm area SD 80 cm²
  • Voice coil inductance Le 0.14 mH
  • Resonance frequency TSP fr 69 Hz
  • Force factor BLxl 4.0 Tm
  • Suspension compliance CMS 0.55 mm/N
  • Mechanical Q QMS 5.18
  • Xmax mechanical +/- 7.7 mm
  • Electrical Q QES 0.68
  • Equivalent air volume of suspension VAS 5.0 dm³
  • Total Q QTS 0.60
  • Characteristic sound pressure level 1 W / 1 m 87 dB
  • Mechanical resistance RMS 0.81 kg/s
  • Rated power 60/90 W
  • Magnet material Ferrite
  • Voice coil diameter 25 mm
  • Total diameter 132 mm
  • Cutout diameter 147 mm
  • Frame depth 3.25 mm
  • Installation depth 57 mm
  • Screw hole diameter 5.2 mm
  • Terminal 2.8/4.8 mm
  • Weight 0.59 kg

Datasheet

Open datasheet

Common questions about PRA 13

What are the performance specifications of the Eton PRA 13 Speaker Set?

The Eton PRA 13 Speaker Set offers a nominal power of 60 Watts RMS and a music handling capacity of 90 Watts. The characteristic sound pressure level is measured at 91 dB (2.83V/1m), indicating that the speakers can produce an impressive sound volume even at low volume levels. The nominal impedance is 3 Ohms, allowing for high power output even directly from factory radios. A key factor for performance is the strong ferrite magnet with a large core hole, which provides essential cooling. These technical specifications make the PRA 13 a powerful system that delivers maximum performance even without an additional amplifier.

What is the design of the woofer/midrange speaker in the Eton PRA 13 Speaker Set?

The 130 mm woofer/midrange speaker of the Eton PRA 13 Speaker Set is equipped with a rib-reinforced paper/glass fiber membrane. This material offers the perfect combination of lightness and stability, resulting in precise sound reproduction. The metal basket of the speaker features a double strut design, complemented by ventilation openings. This construction ensures excellent heat dissipation and a stable structure, which is particularly advantageous at higher volume levels. Additionally, the use of a powerful ferrite magnet with a large core hole optimizes cooling efficiency, contributing to the longevity of the speakers.

How does the aluminum dome tweeter affect the sound in the Eton PRA 13 Speaker Set?

The 25 mm aluminum dome tweeter in the Eton PRA 13 Speaker Set is crucial for reproducing fine sound details. Thanks to its fabric surround, it can produce high frequencies with remarkable clarity and precision. This allows for excellent transparency in the sound image, especially in complex musical pieces with a high dynamic range. The tweeter is equipped with a 12 dB crossover, ensuring that it only receives the frequencies suitable for it. This combination of features makes the tweeter ideal for audiophile applications where the highest fidelity is essential.

What special mounting requirements does the Eton PRA 13 Speaker Set have?

The Eton PRA 13 Speaker Set features a shallow installation depth of 57 mm, making it easier to install in a variety of vehicles. The outer diameter of 132 mm and a cutout diameter of 112 mm must be considered to mount the speakers correctly. Especially when you want to install a new speaker system in your car, the dimensions of the screw holes at 5.2 mm are important. With these precise measurements, it is ensured that the speakers fit securely and operate properly. During installation, the rotation and tilt functions of the tweeter can be considered to adjust the optimal sound angle.

How does the voice coil affect the performance of the Eton PRA 13 Speaker Set?

The high-load 3-ohm voice coil of the Eton PRA 13 Speaker Set allows for maximum output power even without a supporting amplifier. The voice coil diameter is 25 mm, ensuring efficient conversion of electrical to mechanical energy. The inductance of the voice coil is 0.14 mH, contributing to balanced sound reproduction and minimizing distortion. With a mechanical Q of 5.18, the voice coil is precisely designed to maintain the speaker's performance consistently. The effects of this voice coil are clearly noticeable, especially when reproducing music pieces with deep bass structure.

How is the cooling system of the Eton PRA 13 Speaker Set optimized?

The cooling system of the Eton PRA 13 Speaker Set is effectively optimized by using a powerful ferrite magnet with a large core hole. This design ensures maximum air circulation and optimal heat dissipation, which is particularly beneficial during intense use. Thanks to the reinforced, powder-coated metal basket, which has additional ventilation openings, the temperature remains stable even under increased load. This combination of factors avoids the risk of overheating, which could lead to distortion or damage. Thus, the sound quality remains consistently high, even at intense bass frequencies or long playtimes.

What Thiele-Small parameters characterize the Eton PRA 13 Speaker Set?

The Thiele-Small parameters of the Eton PRA 13 Speaker Set include a resonant frequency (TSP fr) of 69 Hz, indicating the lowest tone frequency effectively reproducible by the speaker. The mechanical Q (QMS) is 5.18, while the electrical Q (QES) is at 0.68, resulting in a total Q (QTS) of 0.60. These values determine the transient response and damping characteristics of the speaker. With an Xmax of +/- 7.7 mm, the system offers sufficient diaphragm excursion for clean bass reproduction. These parameters provide insight into the frequency response and efficiency of the speaker in the enclosure.

How is the handling of the crossover in the Eton PRA 13 Speaker Set?

The Eton PRA 13 Speaker Set is equipped with a high-quality 12 dB crossover, which is essential for the precise separation of frequencies. This crossover allows the 25 mm aluminum dome tweeter and the woofer/midrange speakers to receive their optimal frequency ranges. It is offered in various installation housing and surface-mounted variants, providing flexible mounting options. The swivel and tilt function of the housing is particularly useful for adjusting the angle of the speakers for ideal sound dispersion. Proper handling and placement of the crossover ensure perfect acoustic tuning.

What materials are used in the Eton PRA 13 Speaker Set and why?

For the rib reinforcement of the paper/glass fiber membrane in the Eton PRA 13 Speaker Set, materials are chosen that provide an excellent balance between stiffness and lightness. By combining these materials, the speaker can reproduce both low and mid frequencies accurately. The aluminum dome tweeter, with its fabric surround, ensures detailed reproduction of high tones. The double-braced metal basket, made from powder-coated material, not only provides stability but also keeps external vibrations low. These materials ensure that the components of the speaker set remain dimensionally stable under high acoustic loads and deliver a clear, uncolored sound.

Are there any special installation instructions for the Eton PRA 13 Speaker Set?

The installation of the Eton PRA 13 Speaker Set requires some specific considerations. With a mounting depth of 57 mm and a cutout diameter of 112 mm, these speakers should fit precisely into the designated installation locations. The available installation space should take these dimensions into account to ensure easy mounting. It is recommended to use the swivel and tilt function of the tweeter for optimal sound reproduction during installation. The screw hole dimensions of 5.2 mm should also be considered during fastening. These precise installation steps ensure that the speakers function optimally and deliver the best sound in your vehicle.

Manufacturer information / responsible person

ACR Brändli + Vögeli AG
Roland Brändli
Bohrturmweg 1
5330 Bad Zurzach
Switzerland

Responsible EU Person:
ACR S + V GmbH
Industriestr. 3
79787 Lauchringen
Germany

Contacts: compliance@acr.eu