Martin Audio Adorn ACP-55T


In stock


As part of the ADORN commercial loudspeaker series, the ACP-55T is a compact, two-way pendant loudspeaker designed for background and foreground applications hat require premium performance and cost competitiveness in spaces with open ceiling architecture.


  • High performance two-way pendant speaker
  • 5.25” (135mm) LF driver and 0.75” (19mm) HF dome tweeter
  • Wide 150° conical coverage pattern reduces speaker count required for even coverage
  • 70V/100V multi-tap line transformer or 16-ohm low-impedance operation
  • Low and high-frequency overload protection
  • Quick release, bezel-less grille
  • UL94V-0 rated baffle and enclosure
  • 5-year warranty


  • Retail outlets
  • Cafes, bars and restaurants
  • Museums and Houses of Worship
  • Hotels, casinos and concourses
  • Exhibition spaces and convention centres
  • Transportation facilities
TypePassive two-way pendant speaker, ported bass reflex
Frequency Response (6)98Hz-20kHz ± 3dB, -10dB @ 56Hz
DriversLF: 5.25” /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)50W AES, 200W peak
Recommended AmplifierVIA2004 (for low-impedance operation)
Sensitivity (7)86dB / 1W(4V) / 1m (full space)
Maximum SPL (9)109dB Peak
Nominal Impedance16 ohms
Dispersion (-6dB)150° conical up to 7kHz
Crossover3kHz passive (LF and HF auto-resetting fuses)
Transformer Taps70V: 30w / 15w / 7.5w / 3.75w 100V: 30w / 15w / 7.5w
Recommended High-Pass Filter65Hz 24dB/oct
EnclosureUL 94V-0 rated ABS baffle and enclosure
FinishBlack or white
GrillePerforated steel, powder-coated, bayonet fitting
ConnectorsCeramic connector (in and link)
Dimensions (OD)246mm x (D) 238mm
(OD) 9.7in x (D) 9.35in
Weight3.46kg (7.62lbs)
AccessoriesCK3 Suspension Cable Accessory Kit – 3 metre (10 ft)
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