Martin Audio ACS-40TS




Premium sound
from above.

The ACS-40TS is an ultra-compact, two-way ceiling speaker designed for environments requiring premium performance.
It delivers full-frequency response, consistent coverage, and intelligibility for hotels, concourses, and retail outlets.

Bezel-less Design

Engineered for Excellence.

180° Conical Coverage

Very wide dispersion pattern reduces the number of speakers required for even coverage in low ceilings.

70V/100V & 16Ω

Multitap line transformer or 16-ohm low-impedance operation selectable via rotary switch.

High Fidelity

Produces 108dB peak output with a 4″ LF driver and 0.75″ silk-dome tweeter.

Discreet Installation

Shallow backcan for minimum cavity depth. Includes tile rails and C-ring. Bezel-less grille.

Technical Specifications

Acoustics & Drivers

Type

Ultra-compact, passive two-way ceiling speaker, ported bass reflex

Frequency Response

106Hz-20kHz ±3dB (-10dB @ 73Hz)

Drivers

LF: 4″ (100mm) coated paper cone, rubber surround

HF: 0.75″ (19mm) silk dome, neodymium motor

Power & Performance

Rated Power

40W AES, 160W Peak

Sensitivity

86dB 1W/1m

Max SPL

108dB Peak

Nominal Impedance

16 Ohms

Dispersion

180° conical up to 10kHz

Transformer Taps

70V: 20w/10w/5w/2.5w | 100V: 20w/10w/5w

Physical & Dimensions

Enclosure

UL 94V-0 rated ABS baffle, zinc-plated steel backcan

Finish

White (RAL9016), paintable

Dimensions

OD: 221mm (8.7″) x Depth: 97mm (3.8″)

Cut-out

197mm (7.75″) diameter

Weight

2.2kg (4.8lbs)