Review: Andrew Everard

While sawing Electrocompaniet's AW 800 M power amplifier is probably not advisable, doing so would admittedly bring some advantages. Not only would you get even better channel separation from dividing the amp right back to the mains socket - not that the stereo amp is exactly lacking in this respect - the resulting monoblock amps would hopefully be more manageable than the stereo model. It may not be huge, but the 800's 55kg mass puts unpacking and placing it firmly in 'phone a friend' territory.

The Violectric name may be new to you, as it was to me, but behind the brand is a company getting on for four decades in business, principally in the pro audio field, where it operates under the rather unusual moniker of Lake People – inspired by the company’s location in the Lake Constance region of Germany. Like many an audio brand from that country, the company designs and manufactures its products in-house, and is proud of the ‘Made in Germany’ label.

The tone of the announcement of the new Leema Acoustics Quantum range has the air of a Hollywood blockbuster: '25 years in the making…' it begins. But perhaps this hyperbole can be forgiven as this is the Welsh company's first new range in more than ten years and sees the technology of its flagship lineup simplified to reach more affordable prices. Here we have the first two Quantum arrivals, both available in silver or black – the Neutron preamp, with 13 inputs including a built-in DAC, is £1500, as is the Graviton stereo power amp, rated at 150W/8ohm. Buy the two together and you save £200, bringing the package price down to £2800.

Filters, particularly AC mains filters and regenerators, have long been an audiophile staple but the genre has expanded in recent years to accommodate our embrace of digital and streaming audio in particular. With 'high speed' digital transmission comes the prospect of a sea of extraneous noise and interference, from both outside and inside the 'system loop', that washes though our equipment. Jitter in the digital domain and RF-related IM and other distortions are the least of what we understand as the audible consequences of this entirely unwanted hash.