Integrated Amplifiers

Opera Consonance Cyber 100 Signature This classic amp is as mechanically elegant as it is electronically simple There seem to be quite a few similarly-named amps in the Consonance range and this one with KT88 output valves appears to be specific to the UK market. It’s a classic design, both electronically and mechanically, and a very simple one in terms of its circuit. The valve count is typical: two double-triodes per channel looking after phase-splitting and driving the output valves. In keeping with current trends, there are a couple of 6SN7 valves, an old type that pre-dates the ECC8x varieties so popular in audio.

Cayin Audio A-55T The name may be new, but the build quality and technology show all the signs of experience Cayin is one brand name of Zuhai Spark, a Chinese hi-fi specialist operation. Its amps are all valve-based designs running the gamut from relatively pedestrian valves, like the KT88 and EL34, to the exotic-looking GU29. This is one of the most comfortingly traditional models in the range, using a familiar line-up of four KT88 valves, plus two each of the ECC82 and ECC83. Like many current pentode/tetrode amps, this one has a choice of operational modes: ultralinear or triode.

The new romantic Emille brings modern, digital inputs to old-fashioned valves in its most affordable amplifier ever as Ed Selley finds his top pick of 2011 so far Emillé takes its name from a giant, ornate bell that is considered a national treasure in its native Korea. Its range of well thought-out integrated, pre/power amplifiers and phono stages is entirely valve-based and has worn commensurately high-end price tags up until now. The £2,450 Ara is not exactly cheap, but is comfortably Emillé’s least expensive integrated amp ever and targets a rather more accessible and competitive price point. The good news is that there is little sign of cost-cutting.

Arcam A38 A favourite among the blind-listening panel in terms of its performance, the Arcam A38 is a solid all-rounder Arcam’s amps haven’t changed much externally since the introduction of the ‘Full Metal Jacket’ range several years ago, but their internal design has seen a fair bit of evolution. In its description of the A38, Arcam draws special attention to the output stage design which, it says, is much less sensitive to thermal conditions than traditional output stages. The issue of ‘warm-up’ of audio electronics is a long-standing bone of contention, some saying it’s of little importance, while others maintain it’s crucial for proper performance. What’s often forgotten, though, is that the temperature of the output transistors can vary by many tens of degrees during the course of a track, as the music goes from soft to loud and back.

Roksan Caspian M2 With its tuneful performance and natural detail, the Caspian M2 is lined up to be the perfect hi-fi partner Roksan started out in turntables, but quickly diversified into amplifiers and the Caspian name goes back a long way in the company’s history. This particular iteration is in outline specification, your completely average integrated amplifier circa 2010, with six line inputs, an 85-watt nominal output and no funny business at all, unless you count the deeply funky touch-screen remote control. The appearance is distinctive, though, with that stainless steel top panel and as you’ll expect if you know the maker, there are a few interesting touches inside. The most obvious of those, after removing the cover, is the pair of mains transformers which between them take up the left half of the chassis.

Leema Acoustics Pulse III With its proprietary interface and stylish controls, the Pulse III is the next phase in Leema’s enviable amp range As one of our listeners observed after the veil had been lifted on the amps, “That Pulse looks like a set-top box”. Maybe it does, too – and Leema mentions in its literature that the Pulse is intended to be for all the family. Maybe, indeed, hi-fi with the easy familiarity of a set-top box is no bad thing in this day and age. It’s a bit of a deluxe STB, though, not least thanks to the milled-from-solid aluminium front panel and solidly made casework.