Since the very first iPhono launched in 2012, we have used our own in-house Subsonic Filter. As there is only minimal vertical modulation remaining at very low frequencies with an actual cut LP that is playable, we know that “vertical modulation” at low frequencies must be warp. By understanding fully how LP’s are cut and replayed, it is possible to filter record warp strongly without at the same time attenuating low bass or adding group delay.

Cartridges aren’t all the same. In fact, there are two main types, each designed to pick up sound from your records differently—and each requiring distinct amplification.

All of our phono stages, from budget-friendly models to flagship designs, support both cartridge types. This ensures that our products enhance the sound of almost any system and continue to deliver as your setup evolves over time.

Most records are recorded with an Inverse RIAA (Recording) Equalisation curve, that needs to be undone on playback in order for the record to sound 'normal'.

Our phono stages have an RIAA playback equalisation curve that falls within a staggering +/- 0.15dB tolerance from 20Hz to 20kHz – allowing for truthful, accurate music playback.

As with many other iFi audio products, we’ve incorporated a custom OV Series operational-amplifier. This top-notch component contributes to the extremely low noise, low distortion (0.0001%) and wide bandwidth.