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Signature 903

High-end 3-way shelf-top speaker

  • Hi-Res certified dual tweeter module with two fmax domes
  • Three-way speaker with bass reflex technology
  • Subwoofer with ceramic-aluminium diaphragm + aluminium die-cast baskets
  • Finish: Black piano lacquer or Macassar veneer


High-end 3-way shelf-top speaker

The Signature 903 offers all the qualities of the 900 series in a compact format. It is therefore predestined for use in smaller rooms, where there isn’t much space or as a surround-sound add-on for home cinema applications. The Hi-Res Audio-certified tweeter module is used here together with a 170 mm woofer featuring a ceramic-aluminum diaphragm. It shares the exquisite black piano lacquer or Macassar veneer finish with the other models in the range.

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Technical specifications


Frequency Response
  • 30 - 55000 Hz
Principle
  • 3 way bass reflex
Drivers
  • 6.5“ woofer-midrange
  • 1.2" dome-tweeter
  • 0.75" super-tweeter
Power Handling (RMS/Max.)
  • 120 / 180 watts
Impedance
  • 4 – 8 Ohms
Crossover Frequencies
  • 2.400 Hz/17.500 Hz
Recommended Amplifier Output
  • > 20 Watts
Sensitivity (2.8V/1m)
  • 91 dB
Dimensions (WxHxD)
  • 225 x 370 x 352 mm

Highlights


Tweeter & Super-Tweeter
  • Special sound guides in the solid ABS/aluminium front panel for optimum dispersion characteristics
  • Additional 20 mm super dome tweeter for ideal omnidirectional sound distribution and extended reproduction up to 55 kHz
  • 30 mm dome tweeter with coupling volume, long-excursion drive and particularly wide surround for especially deep mid-tone coupling
  • Special sound guides in the solid aluminium front panel for optimum dispersion characteristics
  • Powerful neodymium ring magnet systems for excellent dynamics
  • Newly developed high-res tweeter module with two fmax Signature dome tweeters
midrange-woofer
  • Sophisticated voice coil ventilation for a particularly high degree of resilience
  • Solid ABS/aluminium grille rings with 8 screw fixings
  • Generously vented die-cast aluminium baskets to prevent turbulence and compression effects
  • Distortion-optimised magnet systems
  • Ceramic-aluminium sandwich membranes with high rigidity and optimum internal damping, optimised by inverse dust caps
  • Klippel® optimised construction
Crossover
  • Large terminal panel with solid and encapsulated connectors to accommodate the use of high-quality heavy gauge cables
  • High-quality internal wiring
  • Elaborate phase and amplitude-optimised APOC crossover
  • Bi-wiring/bi-amping option, pre-installed cable bridges for single wiring
Cabinet
  • Decoupling silicone feet and metal spikes included
  • Magnat Airflex port with large openings ensure an optimum bass response without ambient noise
  • Decoupling silicone feet included
  • Noble high-gloss lacquered body (black version) or high-gloss lacquered real wood veneer (macassar version)
  • Very sturdily constructed, multi-braced MDF enclosure in a timeless-modern design
  • Removable fabric protection grille with optimum sound transmission and invisible magnet attachment