Free Delivery on all orders over £99

Adastra SL4 Slimline 4" 20W Ceiling Speaker (Pair)

£2999
The RRP is the manufacturer's recommended retail price of the item.
incl. VAT
Limited stock!
30 Day Returns
Flexible payment options
Description

Compact and efficient, the Adastra SL4 is a slimline 4" ceiling speaker pair designed for clear audio in smaller spaces. With its hi-flex paper cone woofer and wide 160° dispersion angle, it delivers balanced sound suitable for music playback, speech, and paging applications.

The SL4 features a flared baffle to improve clarity and room coverage, while its three spring clip mounts provide quick and secure installation into ceiling cutouts. Gold-plated spring terminals ensure a dependable connection, supporting long-term use in commercial and residential environments.

Supplied in pairs, these slimline ceiling speakers are ideal for offices, waiting areas, corridors, and smaller rooms where a discreet audio solution is needed. Their sleek, unobtrusive design allows them to blend into any ceiling, offering dependable performance with minimal visual impact.

  • Efficient 2-way crossover network
  • Gold-plated spring terminals
  • Sleek, understated profile
  • Flared baffle for wide dispersion
  • 3 "dog-ear" mounts for SL5 and SL6
  • Supplied in pairs
  • 2 spring clips for SL3
  • 3 spring clips for SL4
Specification
Impedance 8 ohms
Dispersion angle 160°
Woofer 100mmØ (4") paper cone
Tweeter N/A
Crossover frequency N/A
Frequency response 100Hz - 18kHz
SPL @ 1W/1m 88dB
Power rms 20W
Dimensions (each) 71 x 145mmØ
Weight (each) 0.60kg
Mounting depth 70mm
Cutout 134mmØ
Have a question?
We're here to help
Call Us

You Might Also Like

Recommended For You

    Our Reviews

    From first click to final installation, our customers share how Niori lights up their spaces. Read their words and envision what’s possible for yours.

    Featured Projects

    Step into our portfolio and see how we transform homes, restaurants, and commercial spaces and more, worldwide. Click here for a closer look at our latest projects.

    The image displays a pair of Adastra SL4 Slimline 4" 20W Ceiling Speakers in white. One speaker is pictured from the front, showcasing its perforated grille, while the other is angled to reveal its side and back components, featuring a hi-flex main driver for enhanced low-frequency response, a mounting bracket, and a gold connector.
    AVSL

    Adastra SL4 Slimline 4" 20W Ceiling Speaker (Pair)

    £2999
    Description

    Compact and efficient, the Adastra SL4 is a slimline 4" ceiling speaker pair designed for clear audio in smaller spaces. With its hi-flex paper cone woofer and wide 160° dispersion angle, it delivers balanced sound suitable for music playback, speech, and paging applications.

    The SL4 features a flared baffle to improve clarity and room coverage, while its three spring clip mounts provide quick and secure installation into ceiling cutouts. Gold-plated spring terminals ensure a dependable connection, supporting long-term use in commercial and residential environments.

    Supplied in pairs, these slimline ceiling speakers are ideal for offices, waiting areas, corridors, and smaller rooms where a discreet audio solution is needed. Their sleek, unobtrusive design allows them to blend into any ceiling, offering dependable performance with minimal visual impact.

    Specification
    Impedance 8 ohms
    Dispersion angle 160°
    Woofer 100mmØ (4") paper cone
    Tweeter N/A
    Crossover frequency N/A
    Frequency response 100Hz - 18kHz
    SPL @ 1W/1m 88dB
    Power rms 20W
    Dimensions (each) 71 x 145mmØ
    Weight (each) 0.60kg
    Mounting depth 70mm
    Cutout 134mmØ
    View product
    Description

    Compact and efficient, the Adastra SL4 is a slimline 4" ceiling speaker pair designed for clear audio in smaller spaces. With its hi-flex paper cone woofer and wide 160° dispersion angle, it delivers balanced sound suitable for music playback, speech, and paging applications.

    The SL4 features a flared baffle to improve clarity and room coverage, while its three spring clip mounts provide quick and secure installation into ceiling cutouts. Gold-plated spring terminals ensure a dependable connection, supporting long-term use in commercial and residential environments.

    Supplied in pairs, these slimline ceiling speakers are ideal for offices, waiting areas, corridors, and smaller rooms where a discreet audio solution is needed. Their sleek, unobtrusive design allows them to blend into any ceiling, offering dependable performance with minimal visual impact.

    • Efficient 2-way crossover network
    • Gold-plated spring terminals
    • Sleek, understated profile
    • Flared baffle for wide dispersion
    • 3 "dog-ear" mounts for SL5 and SL6
    • Supplied in pairs
    • 2 spring clips for SL3
    • 3 spring clips for SL4
    Specification
    Impedance 8 ohms
    Dispersion angle 160°
    Woofer 100mmØ (4") paper cone
    Tweeter N/A
    Crossover frequency N/A
    Frequency response 100Hz - 18kHz
    SPL @ 1W/1m 88dB
    Power rms 20W
    Dimensions (each) 71 x 145mmØ
    Weight (each) 0.60kg
    Mounting depth 70mm
    Cutout 134mmØ