The i Fi ZEN Air Phono is an affordable way to enjoy a purer listening experience when listening to your favourite records. Its the perfect upgrade choice for basic built-in phono stages that significantly reduces hiss noise & rumble. Suitable for both MM & MC cartridge types your phono stage will always be ready to provide you with pure sound even if you decide to tweak your set-up. A subsonic filter negates the effects of record warping without reducing low-frequency clarity or causing phase issues.