GRADIENT HELSINKI 1.5
In 2007, the audio world witnessed one of the most extraordinary loudspeakers ever designed: the Gradient Helsinki 1.5. Staying true to the finest acoustic principles that have guided Gradient from the very beginning, it received widespread acclaim, earning numerous rave reviews and the prestigious Golden Ear Award from The Absolute Sound magazine.
Gradient Helsinki 1.5 reflects our completely unique approach to loudspeaker design. Several innovative technologies control the room-loudspeaker interaction. The loudspeakers as well as the room virtually disappear and take the listener middle of the original recording place.
- Make and model
- Gradient Helsinki 1.5
- Frequency response
- 60-20000Hz +/-2dB, 35Hz -6dB
- Crossover frequency
- 200Hz and 2200Hz
- Impedance
- 6 Ohms, minimum 4 Ohms
- Recommended amplifier power
- 50-250W
- Sensitivity
- 88dB/2.83V/1m
- Drivers
- 1x300mm long throw woofer, 150mm pulp cone midrange, 19mm aluminum dome tweeter
- Radiation patterns
- Bass: dipole, midrange & treble: cardioid
- Features
- Bi-wiring, bi-amping ready (Applicable when Speakon chosen)
- Connectors
- Binding posts, 2 pcs or four pole Speakon
- Weight
- 27kg
- Room size
- Medium - Large
- Made in
- Finland