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RES 1.5

Res 1.5

Full range and no compression driver


  • Very low distortion
  • Wide dispersion
  • Funktion One designed Neodymium drivers
  • Integral 35mm pole mount
  • Optional full grill for discreet appearance
  • Optional Passive Crossover Module (PX1.5)



Operating Band


at 1m





18" 55 - 595Hz 102dB at 2.8V 400W 8**
5" 520Hz - up 110dB at 3.5V 75W 12**


** 8 Nominal impedance with optional passive crossover module

Go to crossover settings

Frequency Response ± 3dB: 55Hz - 15kHz
Weight: 29kg (64lbs)
Nominal Dispersion: 90° Horizontal x 25° Vertical
Connectors: 2 x Speakon NL4


Building on the success of our innovative R1, the Resolution 1.5 is a 2-way loudspeaker enclosure with 90 degree dispersion, high-fidelity and good low frequency output for its size.  Our unique axhead-loaded 5” cone loudspeaker is combined with a substantial 18” bass driver to present a highly capable two way enclosure.  In common with the Resolution 1, the 5” eliminates the need for compression drivers with their inherent harshness and distortion.  The 5” driver’s ability to operate cleanly down to a low crossover point of 590 Hz allows the transition to the bass driver to be exceptionally smooth.  Furthermore, our bass loading technology enables use of an 18” driver in an enclosure size where previously only a 15” loudspeaker could have been used.  As usual with Funktion One there is no system EQ and the resulting sound is extremely involving. It is well suited to applications needing a single enclosure per side including theatres, entertainment venues and worship spaces.

Technical Drawings:

Res 1.5 Technical Drawing
All dimensions in mm and inches © Copyright Funktion One Research Ltd 2008 - 2024

Downloadable Files:


Product in Action: