The Delta model was the company’s starting point in terms of research for this range. This 3 way bass reflex speaker is a well designed technology jewel. This speaker is a symbol of TRIANGLE’s acoustic expertise.


  • Tweeter TZ2550 in die-cast aluminum
  • Woofer – Double ferrites for deep low performance
  • 7 high-density fiberboards
  • Piano lacquer finish : ten coats of paint


Three way ported loudspeaker

Drive Units: 1x TZ2500 tweeter, 1x 185mm paper cone midrange, 2x 185mm fibreglass woofer
Sensitivity: 92dB/W/m
Bandwidth: 35Hz-20kHz±3dB
Power handling: 120W
Repetitive Peak Power handling: 240W
Nominal impedance: eight ohms
Minimum impedance: 3.3 ohms
Crossover Points: 280Hz, 2.7kHz
Dimensions (WxHxD): 37x123x38.6cm
Weight: 33kg
Available in piano white, piano black, piano mahogany


The handsome enclosure is formed from seven layers of high-density fiberboard, each 3mm thick; the sidewalls are gently curved, and the top of the cabinet is beveled at an angle of 5°. The front baffle is barely wider than the midrange unit and woofers, to optimize horizontal dispersion, and the cabinet is raised a couple of inches from the floor by a black plinth. This plinth is 5″ wider than the cabinet, but cut away at the front to allow an inverted conical foot to connect the enclosure to the floor. My review samples were finished in a beautiful mahogany veneer, brought to a high gloss with 10 coats of lacquer. Black frame grilles are supplied, but the speaker looks stunning without them: a combination of high technology and seductive-looking furniture. With so many speakers these days manufactured in the Far East, I noted Triangle’s statement that “the Signature range is made entirely in Soissons [France].”