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Martin Audio

Martin Audio ACS-40TS-W High-Performance 2-Way Ceiling Loudspeaker. 4" LF, 0.75" HF

$270.00

The ACS-40TS-W 2-way ceiling speaker offers a compact design with a wide 180-degree conical dispersion to deliver even coverage and reduce the number of speakers needed.

The loudspeaker incorporates a high-quality 70V/100V line transformer with taps or 16-ohm operation selected by a rotary switch located behind the grille. The grille is easily removable for easy access without the use of tools and has a white finish that is paintable to match any décor.

View Product Features

  • High-performance 2-way ceiling loudspeaker
  • 4-inch LF driver and 0.75-inch dome tweeter
  • Very wide 180° conical dispersion pattern reduces speaker count needed for even coverage
  • Low and high-frequency overload protection
  • 10V/100V multitap line transformer or 16-ohm low impedance operation
  • Quick-release bezel-less grille
  • UL94V-0 rated baffle with zinc-plated back can
  • Tile rails and C-ring included
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About the Martin Audio ACS-40TS-W High-Performance 2-Way Ceiling Loudspeaker. 4" LF, 0.75" HF

The ACS-40TS brings full-frequency response, consistent coverage and intelligibility to a wide range of architectural environments — from hotels and concourses to retail outlets, bars and restaurants.

Comprising a 4” (100mm) LF driver and a 0.75” (19mm) silk- dome tweeter, the ACS-40TS produces 108dB peak output at 1 metre and has a high-fidelity sonic character ideal for both music and speech reproduction. Its ported design delivers strong bass that extends down to 73 Hz.

The very wide 180° conical coverage of the ACS-40TS makes it particularly suitable for low ceilings and reduces the number of speakers required for even coverage — leading to a reduction in installation cost. It features a shallow backcan for installation in ceilings with a minimum cavity depth.

It incorporates a high-quality transformer for 70V/100V line operation, with transformer taps selected by a rotary switch accessible behind the powder-coated, perforated steel grille. The switch also provides for 16-ohm low impedance operation — enabling four or more speakers to be driven in parallel from a single amplifier channel. For full-bandwidth protection, the low and high-frequency sections are individually against overload by auto-resetting thermal fuses.

The grille is bezel-less for a clean look, its bayonet fitting is easy to remove without the use of tools and finished in white (RAL9016) to match ADORN on-wall loudspeakers and may also be painted to blend with any décor. This speaker is certified compliant with UL 1480A and UL 2043 safety standards.

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Key Features

  • High-performance 2-way ceiling loudspeaker
  • 4-inch LF driver and 0.75-inch dome tweeter
  • Very wide 180° conical dispersion pattern reduces speaker count needed for even coverage
  • Low and high-frequency overload protection
  • 10V/100V multitap line transformer or 16-ohm low impedance operation
  • Quick-release bezel-less grille
  • UL94V-0 rated baffle with zinc-plated back can
  • Tile rails and C-ring included

Martin Audio ACS-40TS-W High-Performance 2-Way Ceiling Loudspeaker. 4" LF, 0.75" HF Specs

TYPE
Ultra-compact, passive two-way ceiling speaker, ported bass reflex
FREQUENCY RESPONSE
106Hz-20kHz ± 3dB -10dB @ 73Hz
DRIVERS
LF: 4” /1” high-temp voice coil, coated paper cone, rubber surround, ferrite motor, pressed steel chassis HF: 0.75” silk dome, neodymium motor
RATED POWER
40W AES, 160W peak
RECOMMENDED AMPLIFIER
VIA2004 (for low-impedance operation)
SENSITIVITY
86dB / 1W(4V) / 1m
MAXIMUM SPL
108dB peak
NOMINAL IMPEDANCE
16Ω
DISPERSION (-6dB)
180° conical up to 10kHz
CROSSOVER
3.5 kHz passive (LF and HF auto-resetting fuses)
TRANSFORMER TAPS
70V: 20w / 10w / 5w / 2.5w 100V: 20w / 10w / 5w
RECOMMENDED HIGH-PASS FILTER
75Hz 24dB/oct
ENCLOSURE
UL 94V-0 rated ABS baffle with steel backcan
FINISH
Baffle and grille: RAL9016 white Backcan: zinc plated
GRILLE
Perforated steel, powder-coated, bayonet fitting
CONNECTORS
Ceramic connector (in and link) located behind fire-retardant steel cover
DIMENSIONS
(OD) 221mm x (D) Back Can 97mm, (D) Inc. Grille 115mm (OD) 8.7in x (D) Back Can 3.81in, (D) Inc. Grille 4.51in
HOLE CUT-OUT DIMENSION
197mm (7.75”) diameter
WEIGHT
2.2kg (4.8lbs)

Key Features

  • High-performance 2-way ceiling loudspeaker
  • 4-inch LF driver and 0.75-inch dome tweeter
  • Very wide 180° conical dispersion pattern reduces speaker count needed for even coverage
  • Low and high-frequency overload protection
  • 10V/100V multitap line transformer or 16-ohm low impedance operation
  • Quick-release bezel-less grille
  • UL94V-0 rated baffle with zinc-plated back can
  • Tile rails and C-ring included
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