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  5. Illuminator 18WU/4747T00

Illuminator 18WU/4747T00

80 Watt

Illuminator 18WU/4747T00

Technical Highlights

  • Power: 150 W, Frequency Range: 30-2500 Hz, Impedance: 4 Ohm.
  • Sound Pressure: 85.5 dB, Linear Excursion: +/9 mm, Resonance: 32 Hz.
  • Cone Area: 154 cm², Voice Coil Diameter: 42 mm, BL: 6 N/A.
  • More technical details
€344.00
€344.00 €344.00
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ProductIlluminator 18WU/4747T00

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datasheet
FocalMaestro Utopia Evo
A modern white Focal Maestro Utopia Evo 3-way floorstanding speaker with three visible drivers, including a beryllium tweeter and black base, set on a plain white background.
A black and blue Hifonics Zeus ZXS15D2 15 subwoofer 600W RMS, 1200W printed on center is shown at an angle against a white background.
HifonicsZeus ZXS15D2
Two black Scanspeak Illuminator 18WU/4747T00 speakers with round cones and metallic bases are placed side by side on a white background.
€344.00
€344.00 €344.00

The Illuminator 18WU/4747T00 from Scanspeak is a 6.5" (16,5cm) Mid-Woofer that impresses with various technical features. Equipped with an underhung voice coil and a neodymium drive, the patented aluminum diaphragm ensures low distortion. The symmetrical drive (SD-3) allows for an exceptionally large linear excursion, together with the low-loss linear suspension. This achieves a precise sound experience in a frequency range of 30-2500 Hz, with a power handling of up to 150 W. The Mid-Woofer is optimized for a sound pressure of 85.5 dB and offers an impedance of 4 Ohm. Thanks to its open design and innovative technology, the Illuminator 18WU/4747T00 is an excellent choice for demanding audio applications.

Features
  • 6.5" (17cm) Mid-Woofer
  • Underhung voice coil with neodymium drive
  • Patented aluminum diaphragm/cone
  • Low-loss linear suspension
  • Patented symmetrical drive (SD-3)
  • Exceptionally large linear excursion

    Specifications
    • Power handling (nominal/music) = 80/150 W
    • Frequency range = 30-2500 Hz
    • Resonance frequency fs = 32 Hz
    • Impedance R = 4 Ohm
    • Sound pressure level SPL = 85.5 dB (2.83V; 1m)
    • DC resistance Re = 5.9 Ohm
    • Force factor BL = 6 N/A
    • Voice coil inductance L = 0.41 mH
    • Effective diaphragm area Sd = 154 cm2
    • Moving mass including air load mms = 17 g
    • Equivalent volume Vas = 48.3 l
    • Free air total quality Qts = 0.28 (Qms=3.42, Qes=0.3)
    • Voice coil diameter = 42 mm
    • Linear excursion xlin = +/- 9 mm
    • Mounting diameter d = 158 mm
    • Outside diameter d = 184 mm
    • Mounting depth (not recessed) t = 105 mm

    datasheet

    Open data sheet

    Frequently Asked Questions about Illuminator 18WU/4747T00

    What is the frequency range of the Scanspeak Illuminator 18WU/4747T00?

    The Scanspeak Illuminator 18WU/4747T00 offers an impressive frequency range of 30 to 2500 Hz. This means that the mid-bass driver can reproduce both deep bass frequencies and mid-range frequencies clearly and precisely. The patented aluminum diaphragm, combined with the low-loss linear suspension, ensures optimized sound transmission, resulting in a detailed sound. The precise resonance frequency of 32 Hz aims to minimize distortion at low frequencies, which is particularly significant in complex audio processes. These technical features make this speaker extremely versatile for demanding audio applications.

    What is the power handling of the Scanspeak 6.5 inch mid-bass driver?

    The Scanspeak Illuminator 18WU/4747T00 is designed for impressive power handling, encompassing both nominal and music power. The nominal power handling is 80 watts, while the music power handling reaches a generous 150 watts. These high power ratings allow the speaker to reproduce even intense musical passages with high loads effortlessly. The thoughtful combination of the underhung voice coil with the powerful neodymium drive supports the long lifespan and stability of the speaker even during prolonged full-load phases. If you enjoy listening to dynamic, loud music, this speaker is well-suited to meet your needs.

    What impedance does the Illuminator 18WU/4747T00 offer for audio applications?

    The Scanspeak Illuminator 18WU/4747T00 offers an impedance of 4 Ohm, which is considered the standard impedance for many speaker applications in the audio industry. This impedance is crucial for using the speaker with conventional amplifier systems, as it ensures that sufficient current flows for the movement of the speaker diaphragm without causing overloads. The DC resistance Re of the speaker is 5.9 Ohm, indicating efficient electrical connectivity. With a power input of 2.83 volts at one meter, a sensitivity of 85.5 dB was measured, indicating that the speaker is capable of producing solid sound pressure even at lower power levels.

    What special features does the diaphragm of the Scanspeak Illuminator have?

    The membrane of the Scanspeak Illuminator 18WU/4747T00 is characterized by innovation and precision. Made from patented aluminum, it offers exceptional stability with minimal distortion. The symmetrical drive (SD-3) enhances precision and balance in audio playback through its design, while the low-loss linear suspension maximizes linear displacement. The effective diaphragm area Sd is 154 cm², allowing for a large and evenly regulated sound distribution. These technical details make the speaker particularly attractive for high-demand audio applications where accurate sound reproduction is crucial.

    What installation tips are there for the Scanspeak mid-woofer?

    When installing the Scanspeak Illuminator 18WU/4747T00, you should pay close attention to the speaker's installation dimensions to ensure optimal sound quality. The required installation diameter is 158 mm, while the outer diameter measures 184 mm. The non-recessed installation depth is 105 mm. Due to these specifications, it is important to check whether the speaker fits into the intended enclosure or space, especially in confined areas, as is often the case in vehicles. Also, ensure that the connection cables are routed without causing mechanical stress on the speaker drivers. This way, the audio performance remains uncompromisingly good.

    What sound advantages do the Thiele/Small parameters of the speaker offer?

    The Thiele/Small parameters of the Scanspeak Illuminator 18WU/4747T00 are designed for high performance and provide an excellent basis for precise calculations for enclosure tuning. The total quality factor Qts is 0.28, indicating a very controlled, tight bass response. The force factor BL of 6 N/A supports precise control of diaphragm movement, while the equivalent volume Vas at 48.3 liters is remarkably high and optimizes bass performance in the right enclosure. With a moving mass including air load of 17 g, there is nothing to hinder a quick response to audio signals, and the voice coil inductance of 0.41 mH ensures that high-frequency components are also handled efficiently.

    What is the resonance frequency of the Scanspeak Illuminator 18WU/4747T00?

    The resonance frequency of the Scanspeak Illuminator 18WU/4747T00 is set to 32 Hz. This frequency is crucial as it marks the point at which the speaker requires the least power to move. A lower resonance frequency indicates that the speaker can handle deep bass frequencies with more ease and precision, as the mechanical properties of the system are optimally utilized. Combined with the patented symmetrical drive system (SD-3) and the neodymium drive, this low resonance frequency allows for an unparalleled depth effect in the bass range.

    How efficient is the sound level of the Scanspeak speaker?

    The sound level of the Scanspeak Illuminator 18WU/4747T00 shows high efficiency with a rated sound pressure level of 85.5 dB at an input of 2.83 volts at one meter distance. This is a remarkable level for a 6.5-inch mid-woofer, as it means that relatively little power is sufficient to operate the speaker at a comfortable volume level. This efficiency is achieved through the combination of a high-quality aluminum diaphragm and the advanced technology of the underhung voice coil as well as the neodymium drive. These factors together ensure that even with low amplifier power, excellent sound results can be achieved.

    What are the enclosure requirements for the Scanspeak Illuminator?

    To fully exploit the potential of the Scanspeak Illuminator 18WU/4747T00, it is important to use a suitable speaker enclosure that optimally utilizes the parameters. The free-air total quality factor Qts of 0.28 suggests that a sealed or bass reflex design may be suitable, depending on the desired sound profile. With an equivalent air spring of 48.3 liters, it is capable of using a relatively large enclosure volume that allows for deep frequencies with improved sound coverage. This combination gives you the freedom to be flexible in sound design and meet your desires regarding bass intensity and clarity by adjusting the enclosure parameters accordingly.

    What compatibility does the 6.5-inch mid-woofer offer for various car audio systems?

    The 6.5-inch Scanspeak Illuminator 18WU/4747T00 is designed to be integrated into a variety of car audio systems. Its universal mounting diameter of 158 mm and mounting depth of 105 mm allow for adaptation to most standard placements in vehicles. This means it can be relatively easily adapted to existing speaker locations in cars. The impedance of 4 Ohm ensures that the speaker is compatible with most car audio amplifiers. Before installing it, you should ensure that the intended enclosure or space matches these dimensions to ensure an optimal sound experience.

    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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