#Unison reaserch plus#
It’s the quality of the components used, plus the engineering compromises chosen that define just how good a product becomes. It means the valves run hot (and use a lot of electricity in the process), but sound quality should benefit.Īs usual, the spec sheet can only reveal so much. In theory, single-ended operation gives greater sonic purity, though it’s an approach that suffers when it comes to power output and the ability to really grip a speaker.Īs is usual on single-ended designs, this amplifier works in Class A mode. It uses the purist single-ended approach to the output stage rather than the more common push-pull arrangement. Technically, this is a relatively conventional valve product. The amplifier is available in two good-looking finishes: the black of our review sample and one with a cherry wood front panel. Move away from sound quality and there’s more good news.īuild quality is excellent: all the controls have a solidly engineered feel, and even the remote control – the thing we usually complain about with most high-end products – is an attractive, nice-feeling wooden affair. The S6 is capable of sonic magic, but that magic gets just a little diluted with music such as this. Its ability to reveal emotion in vocals and tie all the instrumental strands into a cohesive whole continue to shine through. However, it’s important to note that even when the S6 isn’t on home turf, the results are enjoyable and the music’s message is still relayed unambiguously. Most of the better conventional alternatives will deliver a more attacking performance with music such as this. However, shift genres to the likes of Eminem or The White Stripes and this amplifier comes up short on attack and bass tautness. With classical music the S6 is spellbinding, and it’s at home with anything acoustic – particularly if it’s well recorded. This is a beguiling amp, but it isn’t a brilliant all-rounder. Once heard, this ability is hard to do without. It’s as though they handle subtle level changes in distinct steps, while the S6 varies things on a continuous scale. Most transistor-based rivals sound just a little mechanical and stilted in comparison. The valve stereotype the Unison Research does live up to is the ability to deliver sound in an organic manner.ĭynamic shifts are rendered in a lovely fluid manner, so changes in intensity sound wholly natural with voices or instruments. The S6 even times decently, though if this aspect of performance is paramount we would point you to the Lavardins and Pliniuses of this world. Hi-fi aspects such as tonal neutrality aren’t ignored, either.
Yes, it has a sweet presentation and a lack of hardness that few transistor alternatives can rival, but for all that niceness there’s enough transparency for it to sound appropriately brittle with harsh recordings such as The Magnetic Field’s I Don’t Know What to Say. Good designs such as the S6 prove things don’t have to be that way. Crossover: Woofer low-pass 12dB/octave, Tweeter high-pass 12dB/octave, Crossover Frequency: 1 - 1.Conventional wisdom has it that valve amplifiers sound smooth, warm and soft.
#Unison reaserch driver#
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