Transcript
ROBSON ACOUSTICS
GREYSTOKE ULTIMA Following on from the success of Elixir, Greystoke Ultima further excels in it’s ability to radiate beautifully clean and accurate bass by using 4 of arguably the best bass units in the world. Each bass unit is separately powered by individual 250W amplifiers to give total control and precision, whilst the midrange, tweeter and rear firing tweeter are controlled separately by either valve power amplification or Nuforce monoblock amplification. The inert baffle which is over 50mm thick allows only the cones of the drivers to move providing speed and dynamics whilst the open baffle design allows a uniform radiation pattern front and rear without the problems of bass compression or box signatures. Greystoke Ultima undergoes more than 220 hours of hand crafted and precision engineering followed by a further 6 weeks of painstaking assembly and finishing to achieve a product which will not only bring audio nirvana but become a beautiful addition to your living space. Room acoustics play an important role in the careful set-up of these loudspeakers which is why they are integrated into the listening room using complex room analysis and measurements followed by minute adjustments in HF, LF and balance. Allowing for all personal styles, Ultima like all the products from Robson Acoustics can be fully customised by a bespoke service like no other. With a huge selection of hides and hardwoods at our disposal, the only limiting factor is your imagination. TECHNICAL SPECIFICATIONS Technology Laminated steel braced double baffle Description Open Baffle dipole Drive Units 4 x 269 mm Nomex coned bass units. 2 x 175mm doped magnesium coned bass/midrange units. Frequency Response Impedance Sensitivity Crossover Power Handling Dimensions Net Weight Finishes
1 x Aluminium ribbon high precision tweeter 1 x Aluminium ribbon high precision tweeter - rear firing 27Hz to 40KHz +/- 2dB on axis L.F bass section 8 Ohms nominal Mid and H.F section 4 Ohms nominal 87dB spl at 1 metre on axis. 2.83V input 2nd order Bass 250Hz 2nd order midrange 2nd order H.F 2Khz 300W peak un-clipped programme Height - 182cm Width - 41cm Depth - 60cm 75 Kg Standard finishes in African Padouck and black parchment hide. Bespoke options available in various hardwoods and choice of hides.
Web: www.robsonacoustics.co.uk | Tel: 01768 484000 | Email:
[email protected]
