3. RS 4.0

RS 4.0

75 Watt

RS 4.0

Technical Highlights

  • Power output of 75 W RMS, impedance 3.2 Ω, excellent sound quality.
  • Neodymium driver, CNC-machined pole plates, 77 Hz resonant frequency.
  • Die-cast aluminum basket, 91 dB sound pressure level, 48 mm mounting depth.
  • More technical details
€550.00
€550.00 €550.00
2% discount with credit card

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ProductRS 4.0

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datasheet
ARC Audio-RS 4.0-4" (10cm) Mitteltöner-masori-kaufen
€550.00
€550.00 €550.00

The RS 4.0 from ARC Audio is a 4" (10cm) Midrange Speaker that impresses with its top-notch craftsmanship and high-quality features. With a power of 75 W RMS, this high-end midrange speaker delivers clear and detailed sound. Outstanding features include an extremely ventilated aluminum die-cast basket, a powerful neodymium drive, and a highly durable, long-stroke voice coil. The lightweight and resonance-free bamboo fiber membrane, as well as the low-loss rubber surround, also contribute to the excellent sound quality. The RS 4.0 is ideal for installation in vehicles and offers a unique dust cap and CNC-machined pole plates for optimal performance.

Features
  • extremely ventilated aluminum die-cast basket
  • powerful neodymium drive
  • highly durable and long-stroke voice coil
  • very light and resonance-free bamboo fiber membrane
  • unique dust cap, designed for use in vehicles
  • low-loss rubber surround
  • CNC-machined pole plates
  • well-guided pole core with copper cap

Technical specifications

  • High End 12cm Midrange Speaker
  • RMS power: 75 W
  • Peak power: 150 W
  • Outer diameter: 121 mm
  • Installation diameter: 102.6 mm
  • Bolt circle: 6 x 4.3 mm on 113 mm
  • Installation depth: 48 mm

Parameter

  • Rdc = 3.2 Ω
  • Fs = 77 Hz
  • Mms = 4.9 g
  • Bl = 4.3 Tm
  • Rms = 0.45 kg/s
  • Cms = 0.87 mm/N
  • Sd = 50 cm²
  • Qms = 5.27 / Qes = 0.41 / Qts = 0.38
  • Vas = 3.1 liters
  • SPL (2.83 V/1 m) = 91 dB

datasheet

Open data sheet

Frequently Asked Questions about RS 4.0

What is the power rating of the ARC Audio RS 4.0 midrange speaker?

The ARC Audio RS 4.0 midrange speaker offers an RMS power of 75 watts and a maximum peak power of 150 watts. This means it is suitable for high-end sound installations that require both powerful and detailed sound. Especially if you enjoy listening to music loudly and want to experience clear mids and excellent details, this midrange speaker is a suitable choice. Its high durability ensures that it maintains very good performance even at high volume.

What materials are used in the ARC Audio RS 4.0?

The ARC Audio RS 4.0 midrange speaker uses high-quality materials such as an extremely ventilated aluminum die-cast basket and a very lightweight, resonance-free bamboo fiber diaphragm. The use of these materials reduces unwanted vibrations and resonances, leading to clearer sound output. Additionally, a low-loss rubber surround and unique dust cap ensure the durability and high-quality audio performance of the speaker, making it ideal for demanding use in various vehicle types.

What is the installation depth of the ARC Audio RS 4.0?

The installation depth of the ARC Audio RS 4.0 is 48 mm. This depth is important for fitting into various installation situations in the vehicle, especially in limited space. With an outer diameter of 121 mm and an installation diameter of 102.6 mm, the speaker is flexible for different mounting conditions. With a bolt circle of 6 x 4.3 mm on 113 mm, installation in various standard fixtures in the vehicle interior is possible, which you should consider when planning your sound installation.

What frequency does the ARC Audio RS 4.0 midrange speaker have?

The ARC Audio RS 4.0 midrange speaker has a nominal resonance frequency (Fs) of 77 Hz. This frequency is crucial for determining the sound character and depth that the speaker can reproduce. With an SPL of 91 dB at 2.83 V/1 m, it offers efficient and loud playback, even at low power input. The combination of frequency and power allows the speaker to achieve exceptional clarity in the mids, which is of great interest to audiophiles.

What are the Thiele Small parameters of the ARC Audio RS 4.0?

The Thiele Small parameters of the ARC Audio RS 4.0 midrange speaker are Rdc = 3.2 Ω, Qms = 5.27, Qes = 0.41, and Qts = 0.38. These parameters help simulate and optimize the behavior of the speaker in a specific enclosure. The force factor Bl is 4.3 Tm, while Mms is 4.9 g. These values are important for fine-tuning your audio system by defining the mass and electromagnetic efficiency of the speaker to ensure the best possible sound reproduction.

How does the aluminum die-cast basket of the ARC Audio RS 4.0 affect the sound?

The extremely ventilated aluminum die-cast basket of the ARC Audio RS 4.0 provides increased stability and reduced resonances. Aluminum die-casting is a material that is not only robust but also minimizes vibrations. This improves sound quality by reducing unwanted background noise. This is especially important at high volumes and in demanding environments. The ventilated design of the basket supports the cooling of the voice coil, further optimizing the thermal performance of the speaker.

What role does the voice coil play in the ARC Audio RS 4.0 midrange speaker?

The highly durable and long-stroke voice coil of the ARC Audio RS 4.0 is crucial for handling audio performance and resistance to thermal stress. It ensures precise movement of the speaker diaphragm, keeping the sound clear and free from distortion. The long-stroke characteristics allow for a greater displacement range of the diaphragm, leading to detailed reproduction of complex sound structures.

What are the dimensions of the ARC Audio RS 4.0?

The ARC Audio RS 4.0 speaker has an outer diameter of 121 mm and a mounting diameter of 102.6 mm. This allows for a fairly flexible arrangement in most vehicles. The bolt circle is 6 x 4.3 mm on 113 mm, which enables easy integration into existing car speaker systems. With a mounting depth of 48 mm, it can also be accommodated in limited spaces without compromising sound performance.

How is the ARC Audio RS 4.0 installed in the car?

For the installation of the ARC Audio RS 4.0 in the car, the key criteria are the mounting diameter of 102.6 mm and the mounting depth of 48 mm. Compatibility with most vehicles arises from the bolt circle of 6 x 4.3 mm on 113 mm. This guarantees a precise installation in many standard opening systems, provided the local configurations match these dimensions. The installation is typically done using screw connections within the given vehicle mounts.

What sound characteristics does the ARC Audio RS 4.0 achieve through its special pole plates?

The ARC Audio RS 4.0 midrange speaker features CNC-machined pole plates that ensure optimal magnetic field distribution and increased mechanical precision. This results in improved linearity and clarity of sound, especially at high volumes and fine sound details. The special processing of the pole plates supports stable power delivery and minimizes distortion, benefiting audio playback. The increased stability helps to reproduce sound accurately and without distortion.

Manufacturer information/responsible person

fortissimo
Dietmar Carle
Bahnhofstr. 23
88048 Friedrichshafen Kluftern
Germany

Contact: didi@fortissimo.de"

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