Isotek Evo Polaris/Premier review

This mains pairing allows your system to sound more positive and confident...

What Hi-Fi? Verdict

A significant improvement on plugging straight to the wall and worth investigating

Pros

  • +

    Allows for an open, revealing and detailed sound

  • +

    Natural, fluid presentation

Cons

  • -

    A little reticent where the mid-range and dynamics are concerned

Why you can trust What Hi-Fi? Our expert team reviews products in dedicated test rooms, to help you make the best choice for your budget. Find out more about how we test.

This Isotek comprises the Evo Polaris mains block (£300) and Premier mains lead (£100). Isotek anticipates that vast majority of Evo Polaris blocks will be sold with the accompanying lead, so it has been priced to include two pieces of equipment.

Performance

Isotek Evo Polaris/Premier

There’s no arguing with the scale or separation of the sound the Isotek allows. Even a recording as subtly complicated as The Unthanks’ reading of Tom Waits’ No One Knows I’m Gone is laid bare, each individual strand secure in its own space.

There’s a fluency and naturalness to its presentation and a deal more heft to dynamic variations. A set-up with this Polaris/Premier combo taking care of supply duties is a more positive and confident listen, especially at the top of the frequency range.

Isotek Evo Polaris/Premier

And yet there are mild downsides. The Isotek pairing puts an emphasis on the extremities of the frequency range, and consequently vocals can be robbed of a little character and nuance.

And there’s a touch of restraint where dynamics are concerned, a slight tendency to play quiet/loud/quiet passages a little safe.

Verdict

None of which means the Isotek isn’t worth investigating, of course, just that’s it’s a slightly qualified success.

MORE: Accessories Award winners 2014

MORE: Read all our mains product reviews

What Hi-Fi?

What Hi-Fi?, founded in 1976, is the world's leading independent guide to buying and owning hi-fi and home entertainment products. Our comprehensive tests help you buy the very best for your money, with our advice sections giving you step-by-step information on how to get even more from your music and movies. Everything is tested by our dedicated team of in-house reviewers in our custom-built test rooms in London, Reading and Bath. Our coveted five-star rating and Awards are recognised all over the world as the ultimate seal of approval, so you can buy with absolute confidence.

Read more about how we test

Latest in Power Products
Chord Company PowerHAUS (OG)
Chord Company's new power blocks could be the hi-fi upgrade you’ve been waiting for
This USB plug socket has a built-in Bluetooth speaker!
What's better than a plug socket with USB? One with a built-in Bluetooth speaker!
99% of fake Apple chargers fail basic safety tests
Olson Sound Fantastic HF6
Russ Andrews X6
Isotek Evo Polaris/Premier
Latest in Reviews
JBL SA550 integrated amplifier
JBL SA550 Classic
iFi Zen Phono 3 phono stage
iFi Zen Phono 3
Google TV Streamer video streamer
Google TV Streamer
Samsung QN990F on a white media unit with a grey curtain in the behind it and soundbar in front
Samsung QN990F 8K TV
Elac Debut 3.0 DB53 standmount speakers
Elac Debut 3.0 DB53
 iFi Zen DAC 3 digital-to-analogue converter
iFi Zen DAC 3