2x18" Reference Subwoofer


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List Price: $6,795.00

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RCF's TTS28-A is a reference, high output, 2 x 18" bass reflex subwoofer module ideal for touring applications. With the digital switching amplifiers, neodymium woofers and well designed structure, it is one of the smallest and lightest double 18" systems available.

A unique feature is the semi charged horn design which at low frequencies around 40 Hz operates as a conventional bass reflex cabinet. However at slightly higher frequencies in the 80 to 100 Hz area, the system operates as a semi charged horn loaded design which provides around 3 to 4 dB more efficiency.


  • Very compact size
  • Maximum output per size available on market
  • Minimum weight
  • 2 x high power full neodymium 18" transducers
  • 2000 Watt switching amplifier
  • XLR in/out, Powercon input
  • Baltic birch cabinet


  • Touring sound reinforcement for large and mid-sized venues
  • Medium to large theatres and night clubs
  • Stadiums, arenas, concert halls and other fixed venue installations
  • Large-scale event reinforcement


Frequency Response -3 dB: 30 Hz √∑ 110 kHz
Max SPL: 139 dB 
Woofer: 2 x 18" neo, 100 mm voice coil

Input signal: Bal/unbal 
Input connectors: Stereo XLR 
Output connectors: Stereo XLR 
Input sensitivity: - 2 dBu / +4 dBu

Crossover frequencies: 80 Hz/110 Hz 
Protections: Thermal 
Limiter: Fast limiter 
Controls: 80/110 add crossover phase

Total power: Switching 2000 Watts 
Low frequencies: D/2000 Watts 
Cooling: Convection 
Connections: Powercon in/out

Cabinet Material: Baltic birch 
Hardware: Fittings ready 
Handles: 6 on side 
Pole Mount/Cap: Yes   
Colour: Black

Height: 700 / 27.56 mm/inch 
Width: 700 / 27.56 mm/inch 
Depth: 920 / 36.22 mm/inch 
Net Weight: 73 / 160.6 Kg/Lbs

Pole Mount Cap for TTS18, TTS18-A, TTS28, TTS28-A SubwoofersRCF AC-TT-PMA Pole Mount Cap for TTS18, TTS18-A, TTS28, TTS28-A Subwoofers

Pole mount cap for RCF TTS18, TTS18-A, TTS28 and TTS28-A subwoofers.

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