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RS Audio

A8

8" (20cm) Subwoofer

Highlights

  • Power 35.06 Hz, impedance 3.90 Ω, SPL 84.00, BL factor 12.79.
  • Q factors: Qms 4.63, Qes 0.43, Qts 0.40, Mms 82.68 grams.
  • Nominal diameter 210 mm, installation depth 124 mm, housing 19 liters.
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brand: RS Audio
Delivery time:
Available for delivery, with you in 1-4 days
Number:
Piece
Watt RMS:
400
Subwoofer Type:
ferrite
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The A8 from RS Audio is an 8" (20cm) subwoofer designed with a nominal diameter of 210 mm and a mounting depth of 124 mm to deliver powerful bass in your audio setup. With a mounting hole of 184 mm, it fits into compact bass reflex enclosures of 19 liters and offers optimal sound performance. Its technical specifications, including a frequency response of 35.06 Hz and a sound pressure level (SPL) of 84.00, make it a versatile choice for audio enthusiasts. The subwoofer is characterized by its precise resistance and Bl-factor values, ensuring a balanced sound. The carefully tuned Q-factors and the Mms of 82.68 grams also contribute to the remarkable sound quality of the A8.

Technical Data

  • Nominal diameter: 210 mm
  • Mounting hole: 184 mm
  • Installation depth: 124 mm
  • Bass reflex enclosure: 19 liters
  • (60 mm pipe/280 mm length)
  • Fs (Hz): 35.06
  • RE (Ω): 3.90
  • RmS (R): 3.94
  • Qms: 4.63
  • Qes: 0.43
  • Qts: 0.40
  • Cms (µM/Newton): 0.25
  • Mms (Gramm): 82.68
  • BL: 12.79
  • VAScB: 15.91
  • SPL: 84.00
The RS Audio A8 subwoofer has a nominal diameter of 210 mm and a mounting depth of 124 mm. The mounting hole has a diameter of 184 mm. These specifications allow for easy integration into compact bass reflex enclosures with a volume of 19 liters. Especially when you need a space-saving design, the A8 is ideally suited due to its dimensions. The specific measurements guarantee perfect sound performance, especially in smaller enclosures.
In a 19-liter bass reflex enclosure, the A8 subwoofer from RS Audio unfolds its full sonic potential. The tuned frequency response starts at 35.06 Hz, and the sound pressure level is at 84.00 dB SPL. These parameters ensure that the subwoofer delivers powerful and precise bass. The BL factor of 12.79 and a moving mass of 82.68 grams contribute to the impressive sound dynamics, making it ideal for discerning audio enthusiasts. The enclosure volume ensures that the A8 is capable of efficiently generating the desired sound pressure.
The compatibility of the RS Audio A8 subwoofer depends on the dimensions of the installation location in your vehicle. With a nominal diameter of 210 mm, a mounting depth of 124 mm, and a mounting hole of 184 mm, the subwoofer fits into many vehicle geometries that provide space for a 19-liter bass reflex enclosure. It is important to measure the available installation space accurately to ensure that the A8 can be integrated without any issues. If these dimensions are adhered to, the A8 is an excellent addition to your car audio system.
The Q factors of the RS Audio A8 subwoofer are crucial for the speaker's sound characteristics. With a Qms of 4.63, a Qes of 0.43, and a Qts of 0.40, these values determine the mechanical and electrical behavior of the subwoofer. A low Qts value allows for precise control over bass reproduction, resulting in a balanced and clear sound image. This balanced sound is particularly advantageous at high volumes, as distortions are minimized. The A8 is therefore ideal for music lovers who desire detailed bass.
The moving mass, Mms, of the RS Audio A8 subwoofer is 82.68 grams. This parameter affects the efficiency and frequency response of the subwoofer. A higher Mms can result in the speaker requiring more energy to achieve the same sound pressure levels, but it generally also handles lower frequencies better. The A8 subwoofer offers a good compromise between efficiency and deep bass reproduction due to this Mms value, making it ideal for delivering powerful and clear bass in a variety of audio setups.
The RS Audio A8 subwoofer should ideally be installed in a bass reflex enclosure with a volume of 19 liters to ensure optimal sound quality. The installation depth is 124 mm and the mounting hole has a diameter of 184 mm. Before installation, it is advisable to measure the installation location accurately. Make sure that the enclosure includes a reflex tube with a diameter of 60 mm and a length of 280 mm. Precise installation ensures that the A8 can fully unleash its sound quality, which is particularly important for reproducing the lowest bass frequencies.
The Thiele-Small parameters are crucial for the performance of the RS Audio A8 subwoofer. The Qts value of 0.40, Fs of 35.06 Hz, and BL of 12.79 are particularly noteworthy as they significantly influence bass reproduction. A low Qts value helps minimize distortion and unwanted resonances, while the resonant frequency Fs sets the lower cutoff frequency. The BL value indicates the force transmitted to the voice coil, which is critical for impulse fidelity and level accuracy. These parameters make the A8 a powerful subwoofer for audiophiles.
The frequency response of the RS Audio A8 subwoofer starts at 35.06 Hz, which means it is capable of accurately reproducing very low bass frequencies. This low cutoff frequency is the result of the continued development and tuning of the subwoofer to meet the demands of discerning audio setups. This specification allows the A8 to produce deep-reaching sounds, making it particularly attractive to music lovers seeking excellent bass volume and clear, deep tones.
The sound pressure level (SPL) of the RS Audio A8 subwoofer is 84.00 dB. Such an SPL value indicates that the subwoofer is relatively efficient when it comes to converting acoustic energy into audible volume. This means you can achieve a high volume even at lower amplifier power levels. However, be aware that increasing the volume will inevitably also increase the power required from the amplifier. With an SPL of 84.00 dB, the A8 offers a balanced balance between efficiency and volume, optimal for various audio applications.
The RS Audio A8 subwoofer impresses with a combination of precise technical parameters and a design specifically developed for powerful bass reproduction. With an Fs of 35.06 Hz, a Qts of 0.40, and a BL of 12.79, the A8 delivers an optimal sound image. The specific dimensions of 210 mm nominal diameter, 124 mm installation depth, and a 19-liter enclosure optimization offer flexibility and quality at the same time. These features make the A8 an excellent choice for audio enthusiasts who value fidelity and powerful sound in a compact format.

RS Audio Vertriebsgesellschaft mbH
Roberto Scalabrino
Gartenfelder Str. 29-37
13599 Berlin
Germany

Contact: info@rsaudio.de

Product Specifications

Manufacturer

RS Audio

Product type

8" (20cm) subwoofer

Features

  • Highlights

    • Power 35.06 Hz, impedance 3.90 Ω, SPL 84.00, BL factor 12.79.
    • Q factors: Qms 4.63, Qes 0.43, Qts 0.40, Mms 82.68 grams.
    • Nominal diameter 210 mm, installation depth 124 mm, housing 19 liters.

weight

3.2 kg

Watt RMS Load Capacity

400

configurators

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Your advantages with Masori

High-precision bass performance: All specifications of the RS Audio A8 subwoofer

The RS Audio A8 subwoofer is the ultimate 8 (20cm) bass speaker for your audio integrations, and with the Masori lowest price guarantee, you can buy it at an unbeatable price. With a nominal diameter of 210 mm and a mounting depth of 124 mm, installation is child's play, even in tight spaces. The 184 mm mounting hole allows it to perfectly fit a 19-liter bass reflex enclosure equipped with a 60 mm wide and 280 mm long tube. These dimensions ensure that no compromises are made in sound quality – the RS Audio A8 delivers balanced bass that will give your audio equipment its own special kick.

Perfect frequency response tuned to 35.06 Hz for impressive deep bass reproduction

The RS Audio A8 subwoofer's precisely tuned frequency spectrum starts at 35.06 Hz, making it perfect for reproducing the deep bass that brings your music to life. A lower frequency range would increase depth and substance in the sound reproduction, while a higher frequency would shift the focus to mid-range and higher frequencies. With an SPL of 84.00, this subwoofer's efficiency lies at the top end. This means less power is needed to achieve high volumes, which is especially useful in lower-wattage systems.

Optimal Q-factors for precise bass control and response

The Qms of 4.63, Qes of 0.43, and a combined Qts of 0.40 are the hallmarks of a subwoofer engineered for precise bass control and fast response. Higher Q-factor values ​​would result in a more elastic and flexible bass. Lower values, on the other hand, would stiffen the bass, which, while beneficial in certain musical genres, would be less universally applicable. The RS Audio A8 has struck the perfect balance to cover a wide range of musical styles.

Power factor BL of 12.79 for efficient power transmission

With a BL force factor of 12.79, this subwoofer features an exceptionally powerful motor structure, which is crucial for efficient power transmission. Higher BL values ​​would further improve control over the cone movement, potentially resulting in even clearer bass reproduction. A lower BL value, on the other hand, would impact the detail and precision of the bass reproduction.

Subwoofer mechanics in perfection: Cms and Mms explained

The suspension compliance (Cms) is specified at 0.25 µM/Newton, while the moving mass (Mms) is estimated at 82.68 grams. These parameters significantly influence the subwoofer's spring performance and movement capability. A higher Cms could make the subwoofer engage more easily, resulting in deeper, richer bass. Meanwhile, the current Mms ensures ideal resonance, optimizing both response speed and frequency coverage.

Exact DC resistance Re and the meaning of the value

The DC resistance Re is 3.90 ohms and significantly influences the subwoofer's electrical load capacity. Combined with other specifications, a lower resistance allows for higher volumes with the same amplifier power. A higher resistance, on the other hand, would require a more powerful amplifier to deliver the same power. The current value of 3.90 ohms ensures balanced performance while also protecting against electrical overload.

SPL value of 84.00 for efficient sound reproduction without loss of performance

The sound pressure level (SPL) of 84.00 guarantees excellent sound conversion efficiency. This value indicates how loud the subwoofer can play at a given input power. An SPL of 84.00 means that the RS Audio A8 can reach full volume at average power amplification without sacrificing bass power. A higher SPL value could further increase efficiency, but should be handled with caution so as not to disrupt the sound balance. For further details or if you have any questions, our on-site installation team in Frankfurt (Oder) is available, along with expert support (FAQ & Help) , and the audio blog to clarify all technical aspects and installation instructions. Discover the potential of your next car hi-fi upgrade with the security guarantee from masori.de.