Rated 4.9 (79 reviews)
The Martin Audio ADORN ACS-40TS is a 4″ enclosed ceiling speaker with a shallow backcan, designed for flush-mount installation in ceilings with limited cavity depth. Its exceptionally wide 180° conical coverage makes it particularly effective in low-ceiling environments, reducing the number of speakers needed for even coverage across retail, hospitality, corporate and leisure spaces.
4″ (100mm)
LF Driver
108 dB
Peak SPL · @ 1 metre
180°
Coverage · conical
70V / 100V
Line Voltage
Flexible Drive OptionsThe ACS-40TS supports 70V/100V line operation via its integrated transformer, with taps selected by a rotary switch behind the perforated steel grille. The switch also provides a 16-ohm low-impedance setting, allowing four or more speakers to be driven in parallel from a single amplifier channel.
Features
4″ LF driver with 0.75″ silk-dome tweeter
180° conical coverage, ideal for low ceilings
Shallow backcan for minimum ceiling cavity depth
Integrated 70V/100V transformer with rotary tap selector
Ported design with bass extending down to 73 Hz
16-ohm low-impedance option for parallel drive
Auto-resetting thermal fuse overload protection
Powder-coated perforated steel grille in white
Specifications
| Type | Enclosed ceiling speaker with 70V/100V transformer |
| LF Driver | 4″ (100 mm) |
| HF Driver | 0.75″ (19 mm) silk dome |
| Peak SPL | 108 dB @ 1m |
| Coverage | 180° conical |
| Frequency Response | 73 Hz-20 kHz |
| Backcan | Shallow profile |
| Finish | White |
| SKU | ACS-40TS-W |
