3. Single Subwoofer SQ
  5. Revelator 23W/4557T02

Revelator 23W/4557T02

225 Watt

Revelator 23W/4557T02

Technical Highlights

  • Power handling: 225 W, Impedance: 4 ohms, Frequency: 20-800 Hz.
  • Black anodized aluminum basket, rubber surround, ferrite magnet system.
  • Resonant frequency: 21 Hz, Sound pressure level: 82 dB, Effective area: 232 cm².
  • More technical details
€489.00
€489.00 €489.00
2% discount with credit card

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ProductRevelator 23W/4557T02

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datasheet
Audio SystemHX 10 EVO
Audio System-HX 10 EVO-10" (25cm) Subwoofer-masori-kaufen
A close-up of the Scanspeak Revelator 23W/4557T00 subwoofer shows its symmetrical drive, black-silver aluminum diaphragm, and mounting holes.
ScanspeakRevelator 23W/4557T00
The Scanspeak Revelator 23W/4557T02 is a black subwoofer driver with a round aluminum cone and edge mounting holes, shown on a white background.
€489.00
€489.00 €489.00

More power than Revelator 23W/4557T02 here!

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The Revelator 23W/4557T02 is an 8" (20cm) Subwoofer from Scanspeak, distinguished by its patented symmetrical drive motor construction. With a black aluminum diaphragm and a ferrite magnet system with rubber coating, it offers exceptional stability and sound quality. The subwoofer is equipped with gold terminals and has an impressive power handling of 225 W. Additional features include a black anodized aluminum basket, ventilated elements, and a rubber surround. This subwoofer operates in a frequency range of 20 to 800 Hz and is suitable for various enclosure configurations.

Features
  • 9" (23cm) Subwoofer with aluminum diaphragm (Black)
  • Patented symmetrical drive motor construction
  • Rubber surround
  • Ferrite magnet system with rubber coating
  • Black anodized rigid aluminum basket
  • Aluminum die-cast basket ventilated under the centering spider
  • Gold terminals

Data
  • Power handling (nominal/music) = 225 W
  • Frequency range = 20-800 Hz
  • Resonance frequency fs = 21 Hz
  • Impedance R = 4 Ohm
  • Reference sound pressure SPL = 82 dB (2.83V; 1m)
  • DC resistance Re = 3.45 Ohm
  • Force factor BL = 9.3 N/A
  • Voice coil inductance L = 0.45 mH
  • Effective diaphragm area Sd = 232 cm2
  • Moving mass incl. air load mms = 101 g
  • Equivalent volume Vas = 45 l
  • Free air total quality Qts = 0.47 (Qms=4.8, Qes=0.52)
  • Diameter of the voice coil = 50 mm
  • Linear displacement xlin = +/- 13 mm
  • Mounting diameter d = 225 mm
  • Outer diameter d = 255 mm
  • Mounting depth (not recessed) t = 141 mm

Enclosure recommendation

  • sealed box with 22 liters
  • from 35/22 Hz (-3dB/-8dB)

Enclosure recommendation

  • 89 liters BR box
  • with HP70 port of length 32 cm
  • from 16/14 Hz (-3dB/-8dB)

datasheet

Open data sheet

Frequently Asked Questions about Revelator 23W/4557T02

What technical features does the Revelator 23W/4557T02 Subwoofer have?

The Revelator 23W/4557T02 Subwoofer from Scanspeak offers a variety of technical features that are significant for audio enthusiasts. The black aluminum diaphragm ensures stable reproduction across the entire frequency range of 20 to 800 Hz. The subwoofer is equipped with an efficient ferrite magnet system that provides powerful performance. The patented symmetrical drive motor guarantees precise sound reproduction. Additional features include gold terminals that offer optimal connectivity, as well as a black anodized aluminum basket that ensures excellent structural integrity. All these technical features are designed to deliver the highest level of sound quality.

What is the power handling of the Revelator 23W/4557T02 and what does it mean for usage?

The power handling of the Revelator 23W/4557T02 is 225 watts, which applies to both the nominal and music power. This specified power handling ensures that the subwoofer is powerful enough to handle intense dynamic ranges and high volumes without distortion or damage. For users who place a high value on robust reproduction and enjoy listening to music loudly, this is crucial information. It allows for use in various enclosure configurations, which are also recommended to get the best performance out of the subwoofer.

What distinguishes the ferrite magnet system of the subwoofer?

The ferrite magnet system of the Revelator 23W/4557T02 is coated with rubber, which increases both durability and efficiency. The rubber coating acts as a protective layer that shields the magnetic material from external influences and maintains its performance consistently over a longer period. The magnet system provides powerful and precise control of the voice coil and diaphragm, leading to improved sound quality. This magnetic stability is essential for optimally controlling the drivers even at high volumes and minimizing distortion.

What role does the rubber surround play in the Revelator 23W/4557T02?

The rubber surround in the Revelator 23W/4557T02 plays an important role in the stability and control of the subwoofer at different frequencies. It connects the diaphragm to the basket and allows for flexible movement, which ensures efficient use of the full frequency range. At frequencies from 20 to 800 Hz, the surround ensures that the diaphragm movements are precise and controlled, reducing the risk of unwanted resonances. At the same time, the rubber surround contributes to the longevity of the product, as it effectively absorbs mechanical stresses during operation.

How does the voice coil inductance affect the sound of the subwoofer?

The voice coil inductance of the Revelator 23W/4557T02 is 0.45 mH, a value closely related to the sound character and impedance of the subwoofer. This low inductance favors a quick response to electrical signals and allows for precise movement control of the diaphragm. This results in clear, accurate sound reproduction without significant delays or resonances. At low frequencies, it provides improved bass control, while in higher frequency ranges, it offers a clear delineation of sound details. This maintains the balance between depth and clarity of the sound.

How is the Revelator 23W/4557T02 optimized for different enclosure types?

The Revelator 23W/4557T02 is optimized for various enclosure types, providing flexibility in application. It can be operated in a sealed box with a volume of 22 liters, allowing for precise bass reproduction with a low-frequency roll-off at 35/22 Hz (-3dB/-8dB). Alternatively, it can be used in a bass reflex box with a volume of 89 liters and an HP70 port of 32 cm length to achieve bass from 16/14 Hz (-3dB/-8dB). This adaptability ensures optimal acoustics in various application areas and rooms.

What installation tips are there for the Revelator 23W/4557T02 in a car?

The mounting diameter of the Revelator 23W/4557T02 is 225 mm, and the outer diameter is 255 mm, so special attention must be paid to vehicle models with smaller installation dimensions. With a mounting depth of 141 mm, it is important to measure the available space behind the panels to ensure proper installation. Additionally, it is advisable to check the materials of the panels for resonance sensitivity, as this could affect the sound experience. A solid mounting through the anodized aluminum basket helps minimize vibrations and improve sound quality.

What acoustic advantages does the aluminum diaphragm of the Subwoofer offer?

The black aluminum diaphragm of the Revelator 23W/4557T02 offers significant acoustic advantages, including high stiffness and low weight. These properties enable accurate reproduction of low and mid frequencies, as the diaphragm responds quickly to signal changes and tends to produce less distortion. The stiffness of the aluminum diaphragm helps reduce sound coloration caused by the bending properties of the diaphragm materials. This results in clearer and more precise sound reproduction, especially in a frequency range of 20 to 800 Hz, where the diaphragm can operate optimally.

How does the compliance factor affect the performance of the Revelator 23W/4557T02?

The compliance factor, described in the context of the Revelator 23W/4557T02 as an equivalent volume Vas of 45 liters, plays a crucial role in tuning the subwoofer in a cabinet. A low Vas value means that the subwoofer tends to sound ideal in more compact enclosures. This feature allows for a well-controlled deep bass range, leading to precise sound reproduction. The solid compliance factor ensures that the acoustic properties of the subwoofer unfold optimally in both sealed and bass reflex enclosures, providing flexible applicability.

What parameters determine the frequency response of the subwoofer?

The frequency response of the Revelator 23W/4557T02 is determined by several technical parameters. The sensitivity of 82 dB at 2.83V and 1m provides a solid foundation for a clearly defined sound in a wide acoustic landscape. The powerful BL factor of 9.3 N/A and the moving mass of 101 g ensure a fast and precise response to signal changes, which is particularly beneficial for dynamic low-frequency ranges. The resonance frequency fs of 21 Hz supports deep bass reproduction, while the free-air total Qts of 0.47 allows for stubborn control across the entire frequency range.

Manufacturer information/responsible person

Audio Components B.V.
Koen Pronk, Martijn Ouwerkerk
Peizerweg 97a
9727AJ Groningen
Netherlands

Contact: info@audio-components.com

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