The phono preamp is the link nobody sees and the one that changes everything: it takes the cartridge's faint signal, lifts it to line level and applies the RIAA curve that gives it balance. If your amplifier has no phono input — and most, by now, do not — this is the box you need. The ZEN Air Phono 2 is our first pick in the class, and it is worth explaining why.
One clarification, because iFi's naming is dense: this is the ZEN Air Phono 2, the second generation of the Air line, not the first ZEN Air Phono nor the plain ZEN Phono (without "Air"), which is the step up. The distinctive trait of the "2" is its quoted input noise, very low: −126 dBV on MM, −146 dBV on MC.
Context
iFi is a British brand known for squeezing technology from far dearer machines into small, affordable boxes, and the ZEN Air Phono 2 — released in spring 2026 — is the textbook example. It is the entry version of its phono-stage range: above it sits the full ZEN Phono, in aluminium, but it is the Air that covers the entry class with almost all the functions that matter.
In our ranking of phono preamps under £200 it takes first place, and not for the price — it is not the cheapest — but for how far it carries you. It is the preamp that grows with you.
Design & build
It is a palm-sized object, with a metal front fascia in iFi's characteristic midnight-blue finish: not a plastic brick, but not the full aluminium of the higher ZEN Phono or the Alva Solo either. For the class it is a careful build, and it looks good on show.
Inside, though, is the substance: a symmetrical channel layout that gives benefits similar to balanced circuitry — less crosstalk, better separation — which is rare at this price, with custom OV-series op-amps and a high-current power supply isolated from the amplification stage. Connectivity is essential: RCA in and out, 5 V power via a DC socket (cable included), consumption under 2 watts.
What reviewers say
The sound character on this page does not come from our own listening: we report it from published reviews, with the name of the person who wrote them.
Tracking Angle (Michael Fremer, September 2026) listened to it with an Ortofon X40 MC cartridge on an SME arm, a front end far more expensive than the preamp, and took no measurements. He reports solid imaging, correct piano and double-bass harmonics, believable attack and decay, a quiet background and robust, controlled bass, with clarity and rhythmic certainty. The limits: at times it sounds soft, overall it stays a step down in intensity and clarity, and on a bluegrass record it showed a slightly metallic edge.
Vinyl performance
On vinyl its worth shows in two concrete situations. The first: warped records. iFi's intelligent subsonic filter does not cut the bass like traditional filters — it distinguishes the vertical movement caused by the warp from the musical content, and removes only the former, leaving bass and dynamics intact.
The second: the cartridge change. Thanks to the switchable gain — 40 dB for MM, 64 dB for MC — the ZEN Air Phono 2 follows your system as it grows. Start with a cheap MM today, move to an MC tomorrow, and the preamp is already ready: you do not rebuy it. It is the reason we call it "the box you will not outgrow".
Value & competition
Here first place is justified. In the sub-£200 class, the ZEN Air Phono 2 competes with the Pro-Ject Phono Box E, the Rega Fono Mini and the Cambridge Alva Solo, and beats them for a precise reason: versatility. The Phono Box E is cheaper, but it is MM only and does not adjust — it is the honest entry point, not the one that follows you as the system grows. The Rega adds a USB port for digitising records. The Alva Solo is the more carefully made object, all metal, but it too is MM only and not adjustable.
The ZEN Air Phono 2 brings together what the others have separately: MM and MC, adjustable gain and an intelligent subsonic filter, at a figure only slightly above the pure entry. It is not the cheapest nor the best-looking: it is the one that covers the most use cases and lasts longest in your system. That is why it is first.
In the vinyl chain
It is the piece needed in a precise situation: a turntable without a phono stage and an amp without a phono input. Many quality turntables — a Rega Planar 1, a Pro-Ject Debut — ship without a built-in phono stage to avoid compromising it with on-board electronics; and most modern amplifiers have lost the phono input. The ZEN Air Phono 2 fills exactly that gap, between the cartridge and the amp's line input.
In our turntable ranking you will find several models that call for it, and in a chain built piece by piece — the idea of the £800 system — it is the link that gives you the freedom to choose amps without phono and cartridges of any type. With its MM/MC compatibility, it is the preamp that does not force premature decisions about the rest of the system.
- MM and MC with switchable gain (40/64 dB): grows with the system
- Intelligent subsonic filter: removes the sway of warped records without hollowing out the bass
- Ultra-low noise floor (EIN −126/−146 dBV) and RIAA to ±0.15 dB
- Symmetrical layout and custom op-amps: technology rare at this price
- Good build, but not the full aluminium of the Alva Solo or the higher ZEN Phono
- Not the cheapest in the class (the Phono Box E costs less)
- For Tracking Angle soft at times and a step down in intensity and clarity
- Confusing iFi naming: check it is the 'Air Phono 2', not the plain ZEN Phono
Turntable: any model without a built-in phono stage (Rega Planar 1, Pro-Ject Debut and the like). Cartridge: MM today, MC tomorrow — set the gain accordingly. Amplifier: any with a line input (AUX), even without a phono input. Connect the cartridge to the preamp's RCA in, the RCA out to the amp, and you are set.
Verdict
Buy the ZEN Air Phono 2 if you want a phono preamp you will not have to change again: it handles MM and MC, has the smartest subsonic filter in the class, a very low quoted input noise and a quoted RIAA accuracy of ±0.15 dB. At a little over a hundred euros, it is the most versatile and future-proof box under £200.
If you are certain you will stay on MM forever and only want the cheapest input, the Pro-Ject Phono Box E is enough and costs less; if you want the most carefully made object, the Alva Solo is prettier. But for most people entering vinyl today — and for anyone who plans to upgrade the cartridge — the ZEN Air Phono 2 is the choice that covers everything. It is our number one, and it holds the position.
