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

£2999
The RRP is the manufacturer's recommended retail price of the item.
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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

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    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