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Australian HiFi

Australian HiFi

May - June 2021

Australian HiFi is the definitive magazine for discerning listeners and Hi-Fi enthusiasts. Every issue is packed with equipment and music reviews, new product information and ‘how-to’ articles. Australian Hi-Fi magazine is dedicated to helping you find the best quality sound for your home.

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Future Publishing Ltd
€ 2,81(Incl. btw)
€ 15,05(Incl. btw)
7 Edities

in deze editie

1 min
amplifier classes

Since the company is actually named after a particular ‘Class’ of amplifier, and the Delta Stereo uses both Class-A and Class-AB circuit topologies, you should really know a little about both these circuit types. Basically, in order to ‘amplify’ an audio signal we need to use a special type of semiconductor called a transistor which allows you to use a low voltage (the input) to control a much higher voltage (the output). This means that the word ‘amplify’ is something of a misnomer because it’s not actually making the low voltage signal any bigger, it’s just making a different, higher-voltage signal increase and decrease in perfect unison with the low-voltage signal. Various different types of solid-state devices have been invented to do this. The most common of these is the bipolar junction…

15 min
velodyne db-12 ‘deep blue’ subwoofer

Velodyne’s ‘Deep Blue’ subwoofer series, of which this DB-12 model is a part, is the first new range of subwoofers from this famous company following its sale to German company Audio Reference two years ago (see break-out box ‘Velodyne in Germany’). David Hall, who was Velodyne’s founder and chief engineer, decided to sell the company so he could concentrate on his other company (see break-out box Velodyne Lidar) which makes sensor equipment that’s used in autonomous vehicles, such as those manufactured by Tesla and Google. Entering the lidar industry might have seemed like a bit of a left turn for Hall, but in fact his inventive genius and technical expertise are such that during the time he owned Velodyne it was granted more patents for subwoofer design than any other subwoofer manufacturer,…

2 min
where is classé made?

Where products are made is becoming an increasingly important question for many audiophiles, particularly here in Australia. Originally manufactured in Canada by Classé itself, the brand continued to be manufactured in that country until it was purchased by Bowers & Wilkins in 2001, which moved production to China. However, when B&W was in turn purchased by EVA Automation (in 2016) it put Classé into hibernation, which included dispensing with the services of Classé’s president, David Nauber, despite the fact that the company was in the process of developing a brand-new model series — Delta. In 2018 Canadian company Sound United (which already owned Marantz, Denon, Polk and Definitive Technology) purchased both B&W and Classé from EVA and one of its first actions was to hire David Nauber to bring Classé…

1 min
velodyne in germany

After 36 years of US ownership, the founder and owner of Velodyne, David Hall, sold his company to Mansour Mamaghani, the owner of Germany’s Audio Reference, in a deal that was inked on November 22nd, 2019. Hall was keen to sell the company so he could concentrate on his new company, Velodyne Lidar, which makes lidars for autonomous vehicles, which he saw as the future (See break-out box Velodyne Lidar for more details). For his part, Mamaghani was keen to purchase Velodyne because his company had been the German distributor for more than two decades and he was a huge fan of the brand. The deal included all Velodyne’s stock, spare parts, patents, designs and tooling. “We are very excited with the opportunity presented by the Velodyne purchase,” said Mamaghani at…

11 min
sonus faber electa amator iii

Che sorpresa! There I was expecting delivery of a pair of small, bookshelf loud-speakers and the courier made me sign for two outrageously large cartons, both of which were so heavy that I had to get a trolley to move them off the stoop. How on earth could either of these cartons contain a pair of small bookshelf loudspeakers? Once inside, I opened the smaller of the two cartons first, which revealed the Sonus faber Electa Amator III loudspeakers I had been expecting. So what could possibly be in the larger box? Had the distributor also sent me a second, larger pair of loudspeakers to evaluate? A few moments with a box-cutter revealed that the larger carton contained a pair of stands — stands that I later discovered were designed specifically…

5 min
laboratory test report

Newport Test Labs first measured the frequency response of the Musical Fidelity M3x Vinyl phono stage’s moving-magnet input using RIAA equalisation, the result of which is shown in Graph 1. You can see that there’s a very slight ‘tilt’ to the overall response that would tend to emphasise the level of the lower frequencies and reduce the level of the very highest frequencies, but if you look at the vertical scale of this graph you’ll see that the top of it represents a +1dB increase and the bottom a 1dB decrease. This means that the response as shown is 20Hz to 20kHz ±0.13dB! This is not only outstandingly good, but also exceeds Musical Fidelity’s specification for it. The frequency response of the moving-magnet stage using the Musical Fidelity M3x Vinyl’s IEC-RIAA…