Product Details ACS-40TS
ACS-40TS is an ADORN two-way ceiling loudspeaker for commercial background and foreground music. The design provides speech intelligibility and even coverage in hotels, concourses, shops, restaurants and other architectural spaces.
The 4-inch LF driver and 0.75-inch silk-dome tweeter produce a specified maximum of 108 dB peak at one metre. Its reflex-loaded enclosure reaches 73 Hz at the −10 dB point. The shallow back can accommodates ceilings with limited cavity depth.
The broad 180° conical pattern supports even coverage with fewer loudspeakers where room geometry permits. It is particularly suited to low ceilings.
A rotary switch behind the powder-coated steel grille selects the 70/100 V transformer tap or 16-ohm low-impedance operation. Four or more units can share one amplifier channel where its load rating permits. Independent auto-resetting thermal fuses protect the LF and HF sections.
The UL 94V-0-rated ABS baffle is fitted to a zinc-plated steel back can. Tile rails and a C-ring are included. The bezel-free grille uses a bayonet fitting for removal without tools, with a paintable white RAL9016 finish that matches the on-wall range.
Martin Audio lists UL 1480A and UL 2043 compliance for ACS-40TS.
Explore the Martin Audio ADORN range at B-Star for the available system options.
Technical Specifications ACS-40TS
ACOUSTICS |
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| TYPE | Ultra-compact passive two-way bass-reflex ceiling loudspeaker |
| FREQUENCY RESPONSE (1) | 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 (2) | 40W AES, 160W peak |
| SENSITIVITY (4) | 86dB / 1W(4V) / 1m |
| MAXIMUM SPL (9) | 108dB peak |
| NOMINAL IMPEDANCE | 16Ω |
| DISPERSION AT −6 dB | 180° conical up to 10kHz |
| CROSSOVER | 3.5 kHz passive (LF and HF auto-resetting fuses) |
TRANSFORMER AND SYSTEM ELECTRONICS |
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| TRANSFORMER TAPS | 70V: 20w / 10w / 5w / 2.5w 100V: 20w / 10w / 5w |
| RECOMMENDED HIGH-PASS FILTER | 75Hz 24dB/oct |
| RECOMMENDED AMPLIFIER | VIA2004 (for low-impedance operation) |
CONNECTIONS |
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| CONNECTORS | Ceramic connector (in and link) located behind fire-retardant steel cover |
ENCLOSURE, MOUNTING AND ENVIRONMENT |
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| ENCLOSURE | UL 94V-0 rated ABS baffle with steel backcan |
| FINISH | Baffle and grille: RAL9016 white Backcan: zinc plated |
| PROTECTIVE GRILLE | Perforated steel, powder-coated, bayonet fitting |
| INCLUDED ACCESSORIES | 2 tile rails; C-ring backing plate; cut-out template |
| CEILING INSTALLATION SAFETY STANDARDS | Certified compliant: UL 1480A, UL 2043 |
DIMENSIONS AND WEIGHT |
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| 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 |
| CUT-OUT DIMENSIONS | 197mm (7.75”) diameter |
| WEIGHT | 2.2kg (4.8lbs) |
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