Unison Research’s Max 2 loudspeakers are now available in Australia. ‘ This new Unison Research model is designed to be matched, in particular, to the Unison Research valve amplifiers,’ said Chris Strom, of Radiance Audio Visual, which distributes the brand in Australia.
The Max2’s 381mm bass/midrange driver is made in Italy using a cone made from a combination of wood and carbon fibre and a newlydeveloped surround suspension made from a fabric woven with 51 per cent cotton and 49 per cent polyester which is shaped into a triple wave, rather than a single roll.
The Max2’s 100mm dual layer voice coil operates from a neodymium magnet. The high-frequency compression driver in the Max2 is also made in Italy using a 35 mm aluminium diaphragm, a 74mm aluminium voice coil and a neodymium magnet. It is loaded by a 60°×50° elliptical Constant Coverage (ESS) horn made of moulded polyurethane that maintains a constant directivity index (±0.85dB) to beyond 12kHz.
The two-way crossover inside the Max2 uses both ferrite-cored and air-cored inductors wound with oxygen-free copper wire, Mundorf capacitors and selected MOX resistors, all of which are fixed to an Italian-made SET printed circuit board.
The nominal crossover frequency is 800Hz, and the electrical slopes either side are deliberately asymmetric, with a 12dB/octave slope on the low-pass filter section and a 12dB/octave slope on the high-pass filter section. For further information, please contact Radiance Audio Visual on (02) 9659 1117 or visit www.radianceav.com.au