iFi Zen Air Phono Review: MM and MC Support at $99 — Is It Worth It?

Most phono preamps at $99 offer either MM cartridge support or basic MC support — rarely both, and rarely with a subsonic filter included. The iFi Zen Air Phono does all three. Specifically, at $99 it combines MM and MC cartridge compatibility, iFi’s subsonic filter, and a low-noise circuit derived from the more expensive Zen Phono series into the most complete entry-level phono preamp currently available at this price. It earned its place as the entry MM/MC pick in the best phono preamps under $250 roundup for exactly that reason. This review goes beyond the spec sheet — covering who the Zen Air Phono is actually built for, what the subsonic filter does in practice, where the fixed MC loading becomes a real limitation, and how it compares to the alternatives at this price.

Who Is the iFi Zen Air Phono For?

Specifically, the Zen Air Phono is built for two specific listener profiles. First, anyone who already owns or is planning to buy an MC cartridge and does not want to invest in a separate MM-only preamp that will need replacing when the cartridge upgrade happens. Specifically, buying the Zen Air Phono at entry price eliminates that intermediate step — it handles both cartridge types correctly from day one. Second, listeners who own or play records from the 1970s and 1980s where vinyl warping is common, and who want a subsonic filter to prevent the woofer pumping and amplifier power waste that warp frequencies cause without one.

However, the Zen Air Phono is less suited to listeners with a specific low output MC cartridge that requires precise impedance loading to perform correctly. Its fixed loading values cover the majority of cartridges in common use — but some MC cartridges perform best at 10Ω or 20Ω, which the Zen Air Phono cannot provide. For those cartridges, the iFi Zen Phono 3’s adjustable loading is the correct solution. Understanding exactly which cartridge type your turntable uses before purchasing is the most important step — the MM vs MC phono preamp guide covers the identification and matching process clearly.

iFi Zen Air Phono — Key Specifications

Design and Build Quality

The Zen Air Phono is compact — smaller than most phono preamps in this category — with a simple, clean exterior that reflects iFi’s design language across their Zen product line. It is lightweight but does not feel fragile. All switching is done via a three-position slide switch on the rear panel that selects MM, MC high, or MC low gain and loading simultaneously.

On the rear panel: RCA inputs sit on the left, RCA outputs on the right, the gain/loading selector switch in the centre, and the DC power input at the far right. The RCA sockets are gold-plated and grip standard phono plugs firmly without play. Overall build quality is appropriate for the price — not premium, but honest and functional.

One practical note: the gain selector switch is on the rear panel, which means accessing it requires moving or lifting the unit. Listeners who set the cartridge type once and leave it will not notice this at all. For listeners who frequently switch between MM and MC cartridges, the front-panel switch arrangement of some competing units is more convenient. However, for the vast majority of listeners who own one cartridge type and leave the setting unchanged, rear-panel switching is perfectly adequate.

The Subsonic Filter — What It Does in Practice

The subsonic filter is the Zen Air Phono’s most practically significant feature relative to its price. Specifically, vinyl records introduce sub-audible low-frequency noise into the signal in two main ways: motor and bearing rumble from the turntable mechanism (typically 5–15Hz), and warp-related modulation when the stylus tracks a warped record groove (typically 0.5–3Hz). Both frequencies are below the threshold of audible hearing — but both are reproduced by the amplifier and speaker system, causing woofer cones to pump visibly on affected records, wasting amplifier power, and potentially stressing speaker suspension components over time.

Specifically, iFi’s subsonic filter removes these sub-audible frequencies from the signal path without affecting the audible bass frequencies the listener actually hears. Consequently, woofer cone excursion on warped records is eliminated, amplifier headroom is preserved, and the audible bass range remains accurate. The filter is always active — it cannot be switched off — which is the correct approach for an entry-level unit where most users will benefit from it consistently. Listeners who primarily play new, flat vinyl in good condition, the filter’s contribution is inaudible. Listeners with older record collections — particularly records from the 1970s and 1980s where warping is common, the improvement in system behaviour is genuinely meaningful.

Sound Quality

The Zen Air Phono sounds clean, quiet, and tonally neutral — it applies the correct RIAA equalisation, amplifies the cartridge signal to line level, and does not add audible character of its own. Compared to a budget integrated amplifier’s built-in phono stage, the improvement is most apparent in two areas: noise floor and low-frequency control.

With MM cartridges

Specifically, at the MM setting (36dB gain, 47kΩ loading), the Zen Air Phono correctly drives any standard MM cartridge to line level with a quiet, controlled background. Specifically, Audio-Technica AT-VM95 series, Ortofon 2M Red and Blue, and Nagaoka MP-110 all perform well at this setting — the noise floor is lower than typical built-in amplifier phono stages, and the RIAA curve is accurate enough that tonal balance across the frequency range is correct. Acoustic guitar, piano, and voice have proper tonal density without added warmth or analytical hardness.

With MC cartridges

Specifically, at the MC high setting (48dB, 470Ω), the Zen Air Phono handles high output MC cartridges including the Dynavector 10×5 and Ortofon Quintet Red correctly. At the MC low setting (66dB, 100Ω), low output MC cartridges including Ortofon Quintet Black and Hana SL operate at correct gain levels. However, some low output MC cartridges perform best at impedance values below 100Ω — specifically cartridges with very low internal resistance (5–15Ω) may benefit from loading at 10Ω or 20Ω. Consequently, for those cartridges the Zen Air Phono’s fixed 100Ω setting is a compromise rather than an optimal match. However, in practice, most listeners at this price point will not own cartridges that require sub-100Ω loading, making this a theoretical rather than a practical limitation for the majority.

Overall character

The Zen Air Phono’s character is neutral and transparent — it does not impose a tonal signature on the signal in the way that tube-based phono preamps do. Furthermore, its passive RIAA network contributes to accurate frequency response across the audio band, which is particularly important for classical and acoustic recordings where tonal accuracy determines whether the recording sounds natural. Those who want tube warmth added to their vinyl playback should consider the Douk Audio T9 instead. Listeners who want accurate, neutral amplification at entry price with MC flexibility, the Zen Air Phono is the correct tool.

Connectivity and Setup

Specifically, setup is straightforward: connect the turntable’s RCA output cables to the Zen Air Phono’s RCA inputs, connect the Zen Air Phono’s RCA outputs to a line input on the amplifier, set the rear-panel switch to the correct cartridge type, and connect the DC power adapter. Total setup time is under two minutes. No drivers, no software, no configuration menu. For a complete walkthrough of the turntable-to-amplifier signal chain — including where the phono preamp sits and how to handle ground connections — the turntable to amplifier connection guide covers every step.

Specifically, the ground connection deserves mention. Most turntables include a separate ground wire that must be connected to the phono preamp’s ground terminal to eliminate hum. The Zen Air Phono includes a ground terminal on the rear panel — connect the turntable’s ground wire here before powering the unit on. If hum is present after connection, the ground wire is the first thing to check.

Additionally, the Zen Air Phono connects to any integrated amplifier’s line input — it does not require a phono input on the amplifier, since the RIAA equalisation is handled internally. For listeners whose amplifier has no phono input, or whose built-in phono stage is basic and they want to upgrade it, this is the standard connection approach. A list of integrated amplifiers with phono inputs capable enough to make the Zen Air Phono unnecessary, the integrated amplifiers with phono input guide covers the full comparison.

How the iFi Zen Air Phono Compares

iFi Zen Air Phono vs Fluance PA10

Specifically, the PA10 is the most validated entry MM phono preamp available — Amazon’s Overall Pick with consistent purchasing volume confirming real-world satisfaction. Indeed, it costs $0.99 more than the Zen Air Phono. However, the PA10 is MM only — it cannot be used with MC cartridges. Listeners certain they will stay with MM cartridges will find the PA10’s stronger purchase validation and dedicated L/R channel amplifiers make it a safe, proven choice. For listeners who want MC capability or the subsonic filter, the Zen Air Phono is the correct choice at the same price. Consequently, these two units serve different listeners rather than directly competing.

iFi Zen Air Phono vs iFi Zen Air Phono 2

Specifically, iFi released the Zen Air Phono 2 at $129 with an improved circuit and lower noise floor. For most listeners at this price point, the original Zen Air Phono represents better value — the noise floor improvement in the updated model is audible only on highly resolving systems with sensitive low output MC cartridges. However, for listeners who specifically own a low output MC and want the best possible noise performance at entry price, the Zen Air Phono 2’s $30 premium is justified.

iFi Zen Air Phono vs Pro-Ject Phono Box DC

The Pro-Ject Phono Box DC at $148.66 is the step up from the Zen Air Phono in the MM/MC category — trusted brand, more purchase validation, and a similarly neutral circuit character. Specifically, the Pro-Ject’s primary advantage over the Zen Air Phono is brand heritage and purchase validation rather than a measurable performance improvement at this price level. Listeners who want Pro-Ject’s long-standing reputation and are willing to spend $50 more will find the Phono Box DC the correct upgrade. However, for listeners who want iFi’s subsonic filter and MC capability at the lowest possible price, the Zen Air Phono is the stronger value.

Is the iFi Zen Air Phono Worth It?

At $99, the iFi Zen Air Phono is worth buying for any listener who owns or plans to own an MC cartridge, or who wants a subsonic filter for a record collection that includes warped or older vinyl. Indeed, no competing unit at this price delivers the same combination of MM/MC support, subsonic filtering, and iFi’s circuit quality. For those specific use cases, the purchase decision is straightforward.

However, for listeners who are certain they will only ever use MM cartridges and whose record collection consists primarily of modern, flat vinyl, the Fluance PA10 at the same price offers stronger purchase validation and a dedicated L/R channel amplifier design. Consequently, in that scenario, the Zen Air Phono’s MC capability and subsonic filter are unused features, and the PA10’s proven track record becomes the more relevant factor.

Final Verdict

The iFi Zen Air Phono is the most complete entry-level phono preamp available at $99 — MM and MC support, a genuine subsonic filter, and a clean iFi circuit in a compact unit that connects and works in under two minutes. Furthermore, it represents a meaningful improvement over any budget integrated amplifier’s built-in phono stage, and it eliminates the need for a second preamp purchase when upgrading from MM to MC cartridges.

However, the fixed MC loading is the only significant limitation — and for the vast majority of listeners at this price point who own standard MM or common MC cartridges, it is not a practical constraint. For listeners who need adjustable MC loading for a specific cartridge, the upgrade path leads to the iFi Zen Phono 3. Listeners who want the most validated MM-only option at this price will find the Fluance PA10 the correct alternative. Everyone else will find the Zen Air Phono the entry point that covers the most ground at the lowest price in this category.

Check Price on Amazon

Entry MM/MC pick — subsonic filter, three-position gain, iFi low-noise circuit. Best entry phono preamp for MC cartridge owners.

Frequently Asked Questions